Document wg66Q7BzQD1rxmVaBrQLy19J3

BB01P 1988 INDEX A Absorption Sound--Where, and why to use: Table. . Accessories--Metal Loth ................................. Acoustical--Engineering assistance ............ Materials............................................................... Plaster ................................................................. Treatment (Weotherwood) ........................ Acoustone.................................................................. Motif a.................................................................. American Stanaord Specifications: i Loth and olosteri ...................................... Application-Methods icompored) Rockloth Arcnes--Metal ..................................................... Areaway Guords..................................................... Andize Moulding Plaster ............................... Asbestos--Cement--Products ........................ Shingles .............................................................. Siding ................................................................... Asphalt--9etter .................................................. Cooted Sheathing ......................................... Shingles .............................................................. Assemblies of materials into Ceilings............ Partitions ............................................................ Walls ................................................................... PACE ............ 84 ............ 25 ............ 84 ____ 84-89 .. .31, 86 ............ 48 ............ 86 .......... 84 .......... 34 ____ 23 .......... 25 .......... 69 ____ 31 62, 66. 67 ____ 66 ____ 67 .......... 62 .......... 58 ...64.65 . . .10-13 ..........6-9 ____ 14-2 B Base Coot Plasters................................................................................ 33 Bats--insulating....................................................................................... 40 Beam--Fireproofing--Pyrobor ......................................................... 55 8lonkef Insulation ............................................................................... 40 Biendex Plank ...................................................................................... 49 Tile ..................................................................................................... 49 Blockset Cement ................................................................................... 31 Boards, Plaster: Lath (Rocklathl ........................................... 22, 23.26,27,58.59 Wallboord (Sheetrock) ._.......................... 42, 43, 50, 51, 53, 59 Bondcrete ................................................................................................ 12 Bond Plaster ........................................................................................... 32 Brands: Lime (Finishing! ................................................................. 33 Lime (Mason's) ............................................................................ 57 Plaster ................................................................................................... 32 Brick Siding.............................................................................................. 63 Bridjoint--Method ofapplying Rockloth..................................... 23 Specifications .................................................................................... 23 Brown Mortar ........................................................................................ 32 Bundling and Pockogmg--See materiol involved. C Colcimine ................................................................................................ 72 Catwalks .................................................................................................. 69 Ceiling Assemblies .......................................................................... 10-13 Cement--Blockset.................................................................................... 31 Paint for................................................................................................ 73 Roofing.................................................................................................... 63 Cementico (Cement point) .............................................................. 73 Clip*--Plastering systems .............................................................23,27 Coating--Roof.......................................................................................... 63 Coldwater Colcimine .......................................................................... 72 Point........................................................................................................ 72 Colored Interior Plaster Finish ....................................................... 40 Exterior Stucco Finish ................................................................... 40 Colors--Exterior Texolite ................................................................... 71 Limeproof............................................................................................... 73 Oriental ExteriorStucco .................................................................. 41 Orientol Interior Plaster................................................................... 41 Texolite................................................................................................... 71 Texolite "330"................................................................................... 71 Column Fireproofing ............................................................................ 55 Committee on Ploster Specifications: Personnel........................ 34 Comparative Assemblies of Materials--Ceilings.....................10-13 Partitions .............................................................................................4-9 Walls .................................................................................................14-21 Costs--See eoch materiol and "assembly" section. Concrete: Lime in ............................................................................... 54 Construction Details Cyplop........................................................................................... 45 Cypsum Plank ................................................................................ 77 Poured Roofs ................................................................................... 81 Rockloth............................................................ 23 Sheetrock............................................................................................. 43 Short soon roof tile ................................................................... 79 Steel roof decks ................................................................................ 33 Contomers--shipping--See moterial involved. Corner Beods ........................................................................................ 25 Comerite ................................................................................................. 25 Costs--Relative. See assemblies and materials involved. Coverage- Plasters................................................................................................ 32-33 Definition ........................................................................................... 31 Crating. See material involved. D Deep Color Texolite ............................................................................ Details--Construction--See consruction details. Diamond Mesh Metal Loth................................................................ Duracal--Casein Powoer Paint ....................................................... 71 24 72 E Econo-Mesh ............................................................................................ 68 Engineering Assistance Acoustics................................................................................................ 84 Roof and Floor Decks ................................................................... 74 Expanded Metals ................................................................................. 68 Expanded Stucco Mesh ..................................................................... 24 Exterior Points......................................................................................... 73 Cemenftco...........................................................................................' 73 Texolite.................................................................................... 75 Rctj. Trade Mark PACE F Fasteners for Asbestos--CementSiding (Nailex).................... 67 Finishes Interior Colored................................................................................... 40 Limes for ..........................................................................................30-32 Materials 'piaster) ................................................................30-32 Plaster--job mode ........................................................................... 32 Lobor for ......................................................................................... 47 Ready to use ............................................................................... 32 fireproofing for Beoms and Columns...................................... 54. 55 Fireoroot--Cypsum ............................................................................... 30 Fireproofing--Tile. Pyrobar ......................................................... 55 Fireproofness of Constructions. See assembly sections. ...6-21 Flat Paints ........................................................................................... 70 Flattened Exoonaed Metal .............................................................. 68 Flexible Corner Beads ................................................................... 25 Floated Walls--Resilient system ..................................................... 26 Floor Finishes--Job mixed: table of............................................. 32 Preoored--<eody to use................................................................ 32 Floors--Design assistance ............................................................ 74 Cypsum.................................................................................................... 74 Four Mesh Z-Rib Metal Loth.......................................................... 24 Freflote Method for Rockloth .......................................................... 23 Specifications........................................................................................ 23 Furniture--metol for ..............................................,,.......................... 69 Furring--metal wall: specifications ............................................. 39 Tile--gypsum .................................................................................... 54 G Gauging Plasters--Description ................................................... 31,32 Toble of ............................................................................................. 32 Girder Fireproofing ............................................................................. 55 Groin Boards--Sheetrock ................................................................... 50 Grounds for ploster .........................................................................32,47 Guard*--Areo-way machinery ond window...................................69 Guide to selection of points ............................................................ 72 Guide to selection of roof and floor construction................. 75" Cyplop--Construction derails ......................................................... 45 Sheathing................................................................................................... 44 Strength test......................................................................................... 45 Cypsite--Definition.................................................................................. 30 Cypsum--Advantages in construction........................................... 4 Definition............................................................................................... 30 Fireproof.................................................................................................. 30 Fireproofing file................................................................................... 55 Floors ................................................................................................... 74 Plank.............................................................................................. 76 Construction details ................................................................... 77 Floors and roofs.................................................................................. 75 Ploster.................................................................................................. 30-33 Roofs........................................................................................................ 74 Tile--Partition ondfurring............................................................... 54 H I Hordboards--Wealherwood ............................................................ 52 Hear lost through roof constructions. Table ..................................................................................................... 74 Hot water calcimine ...................................................................... 72 Index to Assembly. Section................................................................. 5 Insulation- Blanket.................................................................................................... 60 Board........................................................................................................ 59 Rockloth..................................................................................22, 58, 59 Sheetrock................................................................................................ 59 Sound........................................................................................................ 26 Structural................................................................................................ 58 Insulation value of various roof constructions...................... 74 interior paints ...................................................................................... 70 J Job mixed ploster finishes .............................................................. 32 Joint system for Sheetrock................................................................ 42 Joist*--spacing for metal lath......................................................... 38 Junior Bat*--Red TopIns. Wool...................................................... 60 K Kal (Colcimine) .................................................................................. 72 Keene's Cement Varieties ............................................................................................. 31 Finishes--mode with........................................................................ 32 L Labor auontities -see unaer Material. Loth Cypsum Rockloth ................................................................... 22 Metol .................................................................................................. 24 Weatherwood insulating .............................................................. 58 Lathing--Costs. See assembly sections. Nails for ............................................................................................. 46 Specifications .................................................................................... 39 Light--Reflected by various colors................................................ 70 Lime for plastering and finishes....................................................... 32 in concrete ......................................................................................... 56 Mason's................................................................................................... 56 Lime locking--Primer (paint)......................................................... 73 M Mochmery guards ............................................................................ 69 Mosonry mortor........................................................................................ 57 Points....................................................................................................... 73 Mason's Lime ........................................................................................ 56 Brands................................................................................................... 57 Moterial Assemblies Ceilings............................................................................................. 10-13 Partitions................................................................................................. 6-9 Walls..................................................................................................... 14.21 Materiol Quantities--ploster ........................................................... 47 (See assembly sections for others.) Metol Arches . .. .................................................................................... 25 Expanoed................................................................................................ 68 Furniture............................................................................................... 69 Loth.......................................................................................................... 24 Nails for ........................................................................................ 46 Mortar for Cypsum Tile(Blockset)................................................... 31 Masonry.................................................................................................. 57 Motif'd Acoustone ........................................................................... 84-85 Moulding Plaster.................................................................................... 31 N Nailex Fasteners .................................................................................... 67 Noils ond spocmg forlaths and wollboards............................ 46 Near Gypsum Plaster ................................................................... 32.33 o PACE Ortenroi E*rnor Stucco Bose......................................................... 40 Stucco. Finish ......................................................................32.40.41 p Pcckagmg--See meteriol involved. Pomt--Paste................................................................................ Powaered.................................................................................. Primer.................................................................. ..................... Section complete ................................................................. Texture...................................................................................... Woter thinned....................................................................... Partitions--Assemblies.............................................................. Fireproof................................................................................... Steel, factory ...................................................................... Paste Paint ...................... ....................................................... Potd^ing Plasters .................................................................... Perf-A-Tape--Joint system for Sheetrock................... Perfotone--Sound absorbing tile...................................... Perforated Rockloth ............................................................ Personnel of Committee on standord specifications Plain Rockiath ...................................................................... Plank Cypsum floor and roof ................................................... Weotherwood.......................................................................... Plaster Aeousticol................................................................................. A--for every purpose ........................................................ Bose coat ............................................................................. Qo^es--Metal lath ............................................................ Rockloth............................................................................... Weotherwood..................................................................... Boards--Cvplap ................................................................. Rockiath............................................................................... Sheetrock............................................................................. Bond--For Concrete .......................................................... Brands........................................................................................ Cement (Neat) ................................................................. Coverage of. defined ........................................................ Coverage of. table ............................................................ Descriptive................................................................................ Finishes...................................................................................... Gouging..................................................................................... Crounds for ........................................................................... Gypsum table of ................................................................. Labor for ............................................................................. Moulding................................................................................... Neat........................................................................................... Painter's.................................................................................... Potching.................................................................................... Prepared.................................................................................... Quantities, table of .......................................................... (See Assembly section also.) Relative cost installed ................................................... Sanded..................................................................................... Sand for, specification ................................................... Specifications.......................................................................... Systems, Resilient ................................................................ Bridioinf............................................................................... .. Preflote.................................................................... .............. Types compared (Rockiath) ....................................... Wood fibre ............................................................................ Poured in place decks and floors.................................... .. Powder Paints ............................................................................ Predecaroted Wollboards ..................................................... Prepared Finishes (piaster) .................................................. Primer, K-Cemo ........................................................................ Lime locking ........................................................................ Roofing.................................................................................... Purlins--(Sub.I Pyrofill roofs.............................................. Short soon tile ................................................................... Pyrobar Cypsum Tile ............................................................ Beom ond girder ............................................................... Blocksef Cement for ........................................................ Fireproofing,............................................................................. Furring......................................................................................... Roofs........................................................................................... Pyrofill Roof Decks ............................................................... ... 72 ... 72 ... 70 ..70-74 ...73 ... 70 . . 6-9 .. 55 ... 69 . . . 72 ... 73 ... 42 . . . 66 . . . 22 . . . 34 . . . 22 . .. 76 . . . 48 ...88 . . 32 . . . 32 . . . 24 ...22 .. 59 .. . 44 ...21 ...41 ...U ...32 . .. 32 . . . 31 . . . 33 ____ 30 ... 32 .. . 31 .32. 47 ...32 ... 47 . . 31 .. . 32 .. . 73 .. . 73 ...32 ...47 .. . 32 . . 32 ...39 . . . 34 .. . 26 .. 23 ...23 . . . 32 ...32 . .. 80 . . . 72 .48-53 ...32 . .. 73 .. 73 . . . 63 . . . 80 . . . 78 . . . 54 . .. 55 . 31 54. 78 . . 54 . . . 78 . . 80 Q Quantities of moteriol and labor, see "Assembly'' sections 6-21 for Ploster ond lath..................................................................... 47 Quietone--Sound obsorbent .............................................................. 88 R Recessed Edge Sheetrock ........................... Red Top Insulating Wool........................... Reflection of light by colors...................... Relative Costs See materials and assembly section. Resilient Plastering System ...................... Ribloth (metal) ........................................... Rockloth.............................................................. Application methods ............................... Clips for ....................................................... Fire rating .................................................. Insulating....................................................... Nailed on .................................................. Noils for .................................................... Perforated.............................................. - Roll Brick Siding ......................................... Roof--Cements................................................. Coatings......................................................... Coverings........................................................ Decks. Cypsum.............................................. Decks. Steel................................................... Design assistance.................................... Felts................................................................ Cypsum (structural) ............................. Primers........................................................... Shingles.......................................................... Ti.c--' Pyrobor Short Span ................... Roofing................................................................. 24 66 70 .. 26 .. 24 .. 22 .. 23 23.26 . . 22 22. 59 .. 23 . . 46 . . 22 . . 63 . 63 . . 63 62-66 74-81 . . 82 . . 74 .. 63 .. 74 . . 63 64. 66 . . 76 62-67 S Sobinite--Acoustical Plaster ............ Coverage................................................... Safe loads, table of--Cypsum Plonk. Steel Decks ........................................... Sonaed Finish Plaster .......................... Cypsum Plaster .................................... Sana--Specification tor ..................... Scratch coats 'Oriental Stucco*.......... Plaster for. soecificahon................... Sheathing Cveiop........................................................ Weotherwood ......................................... Sheetrock....................................................... Construction defoils .......................... Cram boords ......................................... Insulating ................................................ Nails for ................................................ Tile board ............................................. Shelf-X............................................................ Shingles--Asbestos-Cement.................... Asoholt...................................................... Short Soon Roof Tile............................. Siding--Asbestos--Cement ................... Roll Brick ............................................. Shingles .................................................. Sound Absorbents .................................... Perfotone.................................................. Quietone.................................................... Sabmite..................................................... Weotherwood.......................................... Where to use (table)........................ Sound Control Service .......................... Proofing..................................................... Spacing--Nails, toble ........................... Supports--See Studs and Joists. Speckling Compound ............................. Specifications Bndjomt System .................................. Freflote System .................................... Loth (Am. Std.) .................................. Plaster (Am. Std.) ............................. Plostering--"How to secure".......... Res. Plastering System ...................... Rockloth--Clipped ............................. Nailed on ......................................... Trussteel Studs .................................... Steel--Partitions ...................................... Roof Deck .............................................. Studs........................................................... Structural Insulotion ............................. Stucco. Mesh lexponded) ................... Oriental...................................................... Studs--Steel, spocing for. table.......... Metal loth, spacing for, table.... Trussteel.................................................... Sub-Purlins--Pyrofill Roofs--table of Short span tile--table of................. Supports--Spacing of, merol loth . . T U Tee sizes, Short span roof tile.... Texoiite..................................................... Exterior.................................................. Deep Colors.......................................... "Three Thirty".................................... White ond tints ............................. Textone........................................................ Texture Point....................................................... Plaster................................................... Stucco................................................... Tile Acoustical .................................... Boar^--Sheetrock............................. Weotherwood.................................. Weotherwood HordbocnS . . . . Furring--Pyrobar................................. Partition Pyrobor............................... Roof Pyrobar .................................... Tongue ond Groove --Roof Tile.... Trowel Finishes--Ploster ................. Trussteel Studs .................................... U5C Texture Paint ........................... W Wall--Assemblies of materials for Boords.................................................. Cyplap.............................................. Predecoroted................................. Sheetrock.......................................... Weotherwood................................. . Flooted resiliency............................. Paints....................................................... Plasters.................................................. Sound msulative ............................. Water Thinned Paints ........................ Weotherwood............................................ Asphalt Cooted Sheothmg.............. Hcrdboard.............................................. Insulation............................................... Lath.......................................................... Nails for ............................................. Plank........................................................ Plaster base ................................... Sheartung................................................ Tile............................................................ Wollboard........................................... z Window Guoras .................................... Wood fibre gypsum ploster................. Z-Rib Lath (Metol)............................. PACE .. . 88 . . . 32 . . . 76 . . . 82 . . 32 . . 32 .39,47 . . . 40 ____ 35 . . . 44 58, 59 ____ 42 . .. 43 . . . 50 42. 59 .. . 46 ...53 . . . 68 . . 66 .64, 65 . . . 78 . . . 67 . . . 63 .64-66 . . . 86 ...86 ...88 ...88 . . . 48 . . . 84 .84 . . . 26 . . . 46 . . . 73 . . . 23 . . . 23 . . 37 . . . 34 .. . 5 . . . 26 . . . 23 . . . 37 . . . 28 . . . 69 . . . 82 . .. 28 . . . 58 . . . 24 . . . 40 . .. 37 . . 38 ...28 . . . 80 ...78 . . . 38 ....................... 78 .................... 73 .................... 73 , . :............. 72 ................... 73 ................... 72 ................... 72 .................... 70 .................... 40 .......................46 ................ 84-89 .................... 53 ................... 48 ................... 52 ................... 54 .................... 54 .......................76 ................... 76 ................... 32 ....... ............28 ................... 72 ................ 14-21 ................42-48 ................... 44 ............ 48-53 42. 50. 51. 53 .................... 48 ................... 26 ................. 70 ................... 32 ................... 26 ................... 70 ................. 48 ................... 58 .....................52 ................. 58 .................. 58 ................. 46 ................... 48 .....................58 ................. 58 .................... 48 ............... 48 ................. 69 ................. 32 ................. 24 lBB012 1?9 0 tfcS ADVANTAGES OF GYPSUM IN BUILDING CONSTRUCTION GYPSUM THE SOURCE OF MANY UTILITIES Inherent in Gypsum, and reflected in all of its products are an array of utilities that is rarely found in a single substance. Most of these utilities have a direct bearing on the econom ics of construction. Some of these assets are inherent; a few have been built in by research and experi ence. In Gypsum we have a hydraulic cement: 1. Which is plastic -- may be cast or trow eled to produce any form. 12. Which contains no alkalies to saponify the oil in paints. Which may be success fully painted with Texolite as soon as it has set. 13. Which is essentially light in weight -- puts no excessive burden on supporting framework. 14. Which has possessed these qualities for centuries under constant test in build ings since the Pyramids were built. 2. Which possesses a controllable set -- from one minute to "hours." 3. Which does not shrink when it sets, but actually expands slightly to fill areas and molds. 4. Whose strength, after setting, is con trollable within wide limits -- up to 12,000 lbs. per square inch in compression. 5. Which is a useful heat insulator. 6. Which not only does not burn nor sup port combustion, but provides an unsur passed fireproofing agent possessing many exclusive advantages. 7. Which supplies no food for vermin or bacteria. 8. Which sets at the predetermined time without need for substances or gases out side of itself to cause set -- which requires no aging or curing period. 9. Which, when set, holds nails well. 10. Which can be left in its natural mar ble-like white state, or can be integrally colored, textured, painted or papered, by any known method. 11. Which bonds to itself, and to any type of lath used for plastering -- practically monolithic on Rocklath'' RESEARCH AND CONTROL With its production predicated on the maxi mum in quality and leadership in innovations and betterment, the company long ago recog nized the value of directed research which could increasingly utilize the inherent prop erties of Gypsum. The Building Materials Research Labora tory of the United States Gypsum Company, long a feature of the production program, was consolidated and enlarged in Chicago in 1927. It is housed in a special building providing over 26,000 square feet of labora tories and staffed by 90 technicians and scien tists. At this laboratory there is a constant search for better ways of doing those things the company already does well. There is di rected research leading toward the invention of new methods of solving building problems more economically, with constructions struc turally better, or both. Here, likewise, the possibilities of new raw materials are inves tigated and control over the adhesion to the specifications of the laboratory for the production of every company product is exercised. Construction innovations, developed at the laboratories from Gypsum, utilizing these time tested structural assets, are likewise time-tested, and though new, find ready acceptance. UNITED STATES GYPSUM COMPANY Cooyn'qht 1942, The Um'ec Spates Gypsum Co ~Rc<). Trndc Mor* MATERIAL ASSEMBLIES INTERIOR PARTITION ASSEMBLIES W#od FromcFuildings, Bearing or Non-Sear ing, and FireproofAssemblies CEILING ASSEMBLIES Including Fireproof Constructions 6 to 9 i 1 10 to 13 EXTERIOR WALL ASSEMBLIES . Inner and Outer face, Wood Stud .and v/--'- Masonry Constructions >; f 14 to 21 HOW TO USE THIS GUIDE TO SECLRE SOUND, SAFE SPECIFICATIONS FOR PARTITIONS, WALLS AND CEILINGS ROCKLATH METAL LATH RESILIENT PLASTERING SYSTEM TRUSSTEEL STUDS GYPSUM PLASTERS AMERICAN STANDARD SPECIFICATIONS ; Courtesy American Standards Aiioclatlom ORIENTAL STUCCO AND * ORIENTAL INTERIOR FINISH 22 and 23 24 and 25 26 and 27 28 and 29 30-33 34-39 40-41 1. From the tables of material assem blies (pages 6 to 21) select the one which best serves your purpose. Note the type number. 2. From pages 32 to 33 select the plaster and finish you want (if required). Note the type number. 3. Then describe areas involved and your material specification will read: . . using United States Cypsum Company's 'Type No. C3-B1 -FI ' all to be applied in full conformance to the Stand ard Specifications of the American Stand ards Association for Cypsum Plastering including Requirement for Lathing and Furring." In the specification above, the Type Nos. given as an example represent the following: C3 (Perforated Rocklath and Plaster), B1 (Neat Cypsum Plaster) and FI (Prepared Trowel Finisn). The American Srandard Specifications are printed in full on pages 34 to 39. SHEETROCK WALLBOARD GYPLAP SHEATHING See Complete Index pages 2 and 3 for all materials. 42-43 and 48-53 44-45 a a O pj -0 >0 nj INTERIOR PARTITION ASSEMBLIES WOOD FRAME BUILDINGS--Wood Studs, Bearing or Non-Bearing Page | ThickI n**s j * In.) | 1 iI : Wt./sq. ft. , Complete | Bath j Sides | Plastered , P're Resistance Including Rough and Finish Floor I : Specific Advantages Average : Suggested i Sound Trans- Decoration j mission Loss j See note P* 9 ii Relative1 Type j Cast , No. See note !P*ge 1 i WOOD LATH /PLASTER 32 5 Va 13.8 lbs. ! 30 min. i 32.5 Texolite, other paint or paper It PI ROCKLATH /Plaster 22 1 32 ! jS% ,153.n0 Ilbks,. jIC5Co mm. i,Apdrodteedctifoirne !|3o9o.0n iJ Tpeoxinotlitoer, poatpheerr II P2 j-------- --- /DIAMOND MESH / METAL LATH 1 X / /PLA5TEn [ .-..-.-..-.--!f /Zfi: 3 T > X / METAL LATH Vj /Piaster i i-m, RES PL SYSTEM C0OLLATH / / PLASTER ir I' v_f? PL SYSTEM J XT#' /METAL LATH j JA / /PLASTR 22 1 32 1 . 53/a 1 13.0 lbs. 1 hr. 24 j 32 ! 5 Va ! 16.0 lbs. 1 hr. Maximum fire pro jg q tection at low cost ' Fireproof; resists crack-producing distortions 38.1 , Texolite, other j point or paper II P3 Texolite, other paint or paper VIII P4 24 32 j 5 Va 1 1 5.0 lbs. 1 hr. Fireproof; resists crack-producing distortions 38.1 26 1 22 1 32 6Va ! 26 24 32 SVa 13.0 lbs. No test 1 I! ! 16.0 lbs. No test 1 11 | Excellent crack. | resistance; j superior sound | insulation j j 1 51.9 1 ' I Combines resilienfj ji! principle with known values of L., . . | 0 es ! metal lath j 42 4% ! 42 4ys 4.8 lbs. 1 Fire resistive dry 24 Vi min.iwoll with con- j ceoled joints j ' No test 5.8 lbs. | 41 Vz min. Heovier than P8 i No test i 50-51 4% 4.8 lbs. 24 Vi min.l B*V*V 7^' ` No test i wood paneling i 53 4H 4.8 lbs. 24 Vi min. Simulates ceramic tile at low cost No test Texolite, other i paint or paper VIII P5 Texolite, other paint or paper 1 i IX i P6 1 1 Texolite, other paint or paper XIII P7 jTexolite, other paint or paper ; III P8 Texolite, other paint or paper IV J p? i Self-decorating i i j xii j j1 ! pio : i' !i HA Enamel _ix D' pj i I#> MllJlif NOTES Relative Costa-----Higher figures in this column represent higher probable installed costs, lower figures; lower costs. They represent relative position, not proportionate differences. Variations in local material prices, wages and practices make accuracy impossible. The relative costs; labor and material quantities given on these pages, are offered as an aid to preliminary selection only. Material and labor quantities for all plasters will be found on page 47. Quantities of material and labor per 100 sq. yds. of partition, both sides. Motertal Wood Studs Wood Loth Quontity j Labor 680 Iin. ft. 9 Vi hrs. 2900 pcs. 1 6 hrs. USE ANALYSIS AND ECONOMICS (All supporting members are on 16 ctrs. unless shown otherwise.) Once o sfandord construction, now lorgely superseded by Gypsum Loth (below). . Plaster on wood lath is less fireproof, more prone to cracking, there is less bracing of the structure, "lath marks" show on piaster, sap and resin exude to stain walls. Rocklath 1800 sq. ft. 12-14 h Savings in erection and plaster make Rocklath competitive. No slivers or dirt to infect lather's hands. No wetting required. Less nails to buy and drive. Provides stronger bond. Braces the building. Verminproof. Complies with all Building Codes. Keeps moisture of plastering from wood framework. Reduces inspection costs. No small boy thefts. Practically no lath waste as cut pieces can be used. Perf. Rocklath 1 800 sq. ft. 12.M hr All above odvontoges, plus increased fire protection ot no increase in cost for lath. Full Vi" of plaster is recommended. Provides full one-hour fire rating for partitions in wood frame buildings at costs of less efficient walls. ' Dicmond Mesh Lath 210 sq. yds. 1 6 hrs. A better construction at a higher price. Strongest plaster construction. Braces building. Resists crack ing forces with greater strength. No lath marking. Adds sales values to buildings. One-hour fire rating. Specially recommended for bathrooms and kitchens in homes where lower cost constructions are used in less critical locations. Diamond Mesh Loth ossures full specification thickness of plaster, os walls will not be level if plaster is skimped. Reduces comploinrs. A plus job for owner, architect, dealer and contractor. Z-Rib Metal Lath 210 sq. yds. 1 6 hrs. Z-Rib Lath produces fewer plaster droppings, saving plaster. The additional rigidity supplied by the ribs permits the use of lighter weight lath on the same spans. Rocklath Resilient Clips No. 1 1800 sq. ft. 500 24 hrs. Maximum crack freeness. Walls are "floated" on springs. Movement in supporting framework due to settlement or warping cannot be transmitted to crack plaster until movement exceeds caoocity of spring clips. Most sound-insulative construction available for wood frame buildings. Plaster coat can not be skimped. A superior construction for the better residence. Metal Lath Res. Clips No. 200 or No. 1 00 210 sq. yds. 1350' 32 hrs. The double crack resistance of plaster, reinforced with steel, floated on spring steel clips. All advan tages of P6 above plus those of metal lath. A super construction for those who desire the maximum in refinement in plastered walls for wood frame buildings. Sheetrock Perf-A-Tape ' ootionol 1 1800 sq. ft 24 hrs. 3 boxes 20 hrs. Maximum value in wallboard construction. Fully decorable by any standard method. Joints may be fully concealed, covered by mouldings to produce panel designs or exposed frankly in the modem manner. Use secures faster completion of building. Ideal for alterations and repairs. Resistance to fire and flood exoosures has been fully established by an experience record of over 20 years. Requires less paint than other wallboard. Sheetrock Pert-A-Tape 'optionoll Sheetrock Sheerrock Tile Board Perf - A-Tape rarely needed) 1800 so. ft. 24 hrs. 3 boxes 20 hrs. Increased fire protection. More rugged and heavier than construction P8 at nominal cost difference. 1 1800 sq. ft. 24 hrs. i 1800 sq. ft. 3 boxes 24 hrs. 20 hrs. See pages 50-51 for illustrations of available wood groin reproductions. A fully predecorated wall in keeping with present demand for natural wood wainscots and wall surfaces. Surfaces may be main tained by waxing or clear lacquer. Reproductions of natural wood grains rival appearance of actual wood. Joints between panels are generally left without treatment and frankly exposed. Nail heads ore readily concealed. Effective in bothrooms, kitchens, laundries, long halls, powder rooms, etc. in either wainscot or full ceiling high installations. Impressed mortar joints may be painted a contrasting color. For wainscot work in bathrooms and kitchens sizes of boards are such that little, if any, joint treatment is required. *Perf-A-Tcpe combination box for 250 iin. ft. , ,amt. 4OfrEARS*0f PROGRESS THROUGH RESEARCH K INTERIOR PARTITION ASSEMBLIES WOOD FRAME BUILDINGS--Wood Studs, Bearing or Non-Bearing -WOOD LATH / PLASTEP Page Thickness I (In.) | ' I Wt./sq.ft, | Complete I Both | Sides | Plastered Fire Resistance Including Rough and Finish Floor Specific Advantages 32 | j 5 Vs 13.8 lbs. 30 min. Average I Suggested Sound Trans- { Decoration mission Loss j See note 1 page 9 I 3, 3 '3 1 Texolite, other paint or paper Relative Type Cost No. See note page 7 | i 11 PI fOCKLATH '. j PLASTEP DIAMOND MESH METAL LATH / PLASTEP ItHWitqWA 22 32 ! j 53/8 1 22 I 32 ' i 53/s 1 1 13.0 lbs. 55 min. Added fire protection 39.0 13.0 lbs. 1 hr. Maximum fire pro tection at low cost 39.0 24 32 5 Vs 16.0 lbs. 1 hr. 24 j j 32! 5 Vs , ' 26 22 1 1 32 6 Vs ! 15.0 lbs. 1 1 13.0 lbs. 1 hr. No test Fireproof; resists crack-producing distortions 38.1 1 Fireproof; resists crock-producing 1 distortions 38.1 Excellent crock resistance; superior sound insulation 51.9 26 24 32 5Vs 16.0 lbs. No test Combines resilient principle with known values of metal lath No test 42 4 3/s 4.8 lbs. 1 Fire resistivedry 24V2 min. wall with con- cealed joints ; ( No test i Texolite, other paint or poper 1 j 1 Texolite, other point or paper 11 11 P2 P3 Texolite, other paint or paper VIII P4 l Texolite, other paint or paper VIII P5 Texolite, other j ^ paint or paper j P6 1 Texolite, other point or paper i^m ! 1 1 P7 ` j j Texolite, paint or other paper 1 i J jjj . P8 42 I 4 s/^ 5.8 lbs. 41 Vi min. Heavier than P8 No test Texolite, other ] paint or paper IV : P9 /5HEETROCK / GRAIN BOARDS (om>8*rn>ouujiNG) 50-51 . 4% i 4.8 lbs. i 24'/i min. Beauty of natural . No test | | wood paneling , ; Self-decorating j XII "I ' P10 53 AMs 4.8 lbs. 7444 IY/2, mm. 'i Sti.li.emualat t.leosw ceromic cost I .N.o ,,tes.t Enomel IX 1PM tJ \1 lS60Z TEP -STATES GYPSUM COMPANY | PARTITIONS (Continued) Page Thick- Wt./sq. ft. Fire ness Complete Resistance , 1 In.J i Both j Including j Sides Rough and Plastered Finish ! Floor . Specific i Advantages Average Suggested Sound Trans- Decoration mission Lass , See note ! Page 9 | ; Relative Type Cost No. |1 ISee note! page 7 ! !! 48 1 4H 3.3 lbs. | ! 48 1 4s/a i 1 48 iVa 3.4 lbs. ! I j i j 3.4 lbs. Notest No test No test | Unit wall textured : surfaces. Sound 30.0 j absorbent j Variations in tile size, texture and color. Sound absorbent 30.0 Variations in plonk width, color and texture. Plank interlock. Sound absorbent 30.0 48 5 Va 4.2 lbs. No test No furring strips. Tile interlock. Sound obsorbent 33.0 Self-decorating. May be painted with Texolire or other paint 1 j P12 Self-decorating. May be painted with Texolite or other paint 1 ! Self-decorating VII i 1 j ! i P14 i 11 i1 Self-decoroting ;X !1 ; 1 P15 ! 52 37/a 52 | i 2Va I 3.2 lbs. No test Excellent for dados and wain scots 30.0 3.3 lbs. K. ____ Notest 1 Adds simulation of | tile to PI 6 30.0 Unpointed or enamel II PI 6 Enamel 1 ! XI ' P17 FIREPROOF PARTITION ASSEMBLIES 1 24 1 32 1 12 1 I 1 ' 22.0 lbs. 1 Hr. Space-saving standard partition 2-j -j ' I 28 I | 1 28 Add c 5 .. 32 ; 1 >A' 'bs. I to stud 'y*. :s.ze ,Sfuds) 1' 1 54 | 1 hr. 32! 4 I 20.0 lbs. 2 hrs. Provides space for ducts and conduits vertically ond horizontally 44 g ' Low cost standard fireproof nonbeoring masonry partition 3-7 g ' . '. ,,c 32 , ! : ! iij/uL, j^.Olbs. . , : 3 hrs., ;59mjn 1 1 j so 4 Increased fire pro- : ! tection over FP3 j 38 4 ! 1 j Texolite, other j paint or paper VI 1 ' FP1 i 1 | Texolite, other j paint or paper I 1 ! Texolite, other VII j paint or paper i V | Texolite, other ^ ! paint or paper ;VU !! j j FP2 FP3 ^ , FP4 ! I- UNITED states gypsum company NOTE SOUND TRANSMISSION--figures are from laboratory tests on constructions built to standard manu facturers' directions. Confirmation by test under other than laboratory conditions is not guaranteed. Material and labor quantities for all plasters will be found on page 47. Quantities of material and labor per 100 sq. yds. of partition, both sides. Material Quantity Labor USE ANALYSIS AND ECONOMICS (All supporting members are on 16 ctrs. unless shown otherwise.) Weotherwood Botten strips 1800 sq. ft. 600 lin. ft. 8 hrs. 6 hrs. Low cost insulotive partition for buildings where economy is a major factor. Needs no painting. Mildly textured surfaces in either grayish ton or ivory. May be pointed economically with Texolite, See page 70. Batten strips over joints may be omitted. 1x2 Furring Strips 1 12" errs.: Weotherwood Tile 1800 lin. ft. 1 800 sq. ft. 8-10 hrs. 16-20 hrs. Interesting tile patterns in blended colors. Concealed nailing. Ogee edge (see page 481 permits movement in board or structure without producing unsightly gaps at joints--prevents air infiltration at unsupported joints. 12"xl2" tile requires cross furring every 12"; 16" tile only when vertical joints are broken. All larger sizes may be applied direct to studding without furring. Furring (if re quired 1 6" ctrs.) 1360 lin. ft. Weotherwood 1 800 sq. ft. 8 hrs. 16-20 hrs. Provides many pleasing variations of decorative treatment at moderate cost. Cross furring on 16" centers is necessary when random width planks ore applied vertically. No furring is applied when planks ore applied horizontally across the studs or where 16" wide planks are used vertically. (See page 48 for available colors, blends and illustrations of Weatherboard Plank.) Weotherwood ** tile 1800 sq. ft. 1 4 to 18 hrs. Heavier tile than P-14. Ogee edges (see page 481 on all four edges of tile. Permits installation with out furring strips. Wide variation of decorative tile patterns in blended shades of groyish tan and ivory or in straight colors provide interesting effects. W eotherwood Hordboord Particularly valuable for wainscots ond areas where heavy traffic might scuff less rugged material. 1800 sq. ft. 18-22 hrs. May be left unpainted or may be varnished, waxed, lacquered or enameled. i Weotherwood Hordboord Tile j 1800 sq. ft. Used wherever a low cost reproduction of ceramic tile is desired. The exceptionally hard surfaces resists 18-22 hrs. wear better. May be given any decorative treatment. . J,i" Channels Metol Loth Plaster Sond 910 lin. ft. 105 sq. yds. 4800 lbs. 4.5 cu. yds. 20 hrs. 30 hrs. Trussteel Studs 3.4 lb. Z-Rib Lath 680 feet 21 0 sq. yds. 32 hrs. Spacing of studs on 1 2", 13 Vi " or 1 6" centers is set generally by local ordinances, practices or economy (these calculations are for 12" centers 1 . Their frequency has little effect on the strength of the partition. An ideal, lightweight, quickly built partition for fireproof structures saving many square feet of floor space in buildings with long corridors and many small rooms. Each time a partition is used from 2" to 4" is added to the width of the room. Economical for fireproof housing as its rela tively high sound insulation provides much needed isolation between rooms and apartments. Keeps conduits, ducts, etc., within partition spaces. Alterations in conduits may be made at any time after completion without damage to walls as conduits may be placed vertically between studs or horizontally through studs without weakening them. Simple, fast erection. Materials readily trans ported in passenger elevators for alterations in existing fireproof buildings. 3 Hollow Pyrobar Gypsum 855 sq. ft. Tile 720 lbs. Blockset Cmt. .9 cu. yd. Sanq ' 18 hrs. Hollow Pvrobar Gypsum Tile 855 sq. ft. Blockset Cmt. Sand 900 lbs. 1.12 cu. yds. 19 hrs. An adaptable, highly fireproof, lightweight partition, easily altered. Ideal for office buildings where changes in partition location and new openings in partitions are frequent. Most fireproof partition known for its weight, cost or thickness. Time rested. Cleon working. Minimum breakage loss in shipment ond erection. Twice the fire resistance of FP3, at nominal increase in cost. Ideal partition for stairway and elevator enclosures in fireproof buildings and corridor use where ordinances demand a 4-hour fire rating. Both FP3 and FP4 have been standard construction accepted everywhere for upwards of 40 years. The sim plicity with which they may be removed, re-erected and altered to suit changing building occupancy, their full comoliance with insurance and ordinance requirements is well known. 966i sioaa 0 40 YEARS OF PROGRESS THROUGH RESEARCH ) CEILING ASSEMBLIES Poge 32 Depth to Face Weight of Finished Sg. Ft. Ceiling (In.) j ij 1 ii i i 4 6 lbs. 22 32 Vs j 22 32 Vs 5.5 lbs. 5.5 lbs. . Fire Resistance 'Including Rough and Finish Floor Heot Conductivity per Sq. Ft./Hr./ Oiff. in B.T.U's. (Includes Vi" Yellow Pine Rough Floor) Suggested Decoration ; ; 1 Relative Type Cost No. j jee nofe 1 ! .... ii | 1 Pg 1 CO IN i1 No test 1 \ 1 j 1 No test .28 ' I hr. with j stripped joints k> 00 Texolite, other paint or paper ii Cl ; Texolite, other j paint or paper 11 i j i Texolite, other j| point or poper i :a i C3 22 32 Vs 5.5 lbs. 1 (No test ! .21 i' i| . Texolite, other : point or paper IV i C4 58 32 1 6.0 lbs. ! 1 ; 30 min. i j i .21 |i I' Texolite, other | v paint or paper j i C5 I 24 32 24 32 3/4 7.3 lbs. 1 hr. .30 7.3 lbs. 1 hr. i i ( .30 26 22 32 i 1 Vs ! 5.5 lbs. i 1 ! No test i: 1 ; .28 1i Texolite, other j yj point or paper i | i ; Texolite, other j paint or paper j VI i Texolite, point or 1! 1 j other; ^ paper! j C6 1 C7 1 i | --g I 1 26 24 32 Vs 7.3 lbs. i No test .30 Texolite, ofher I ^ paint or paper i UNITED STATES GYPSUM COMPANY NOTES Relative Costs--Higher figures in this column represent higher probable installed costs, lower figures; lower costs. They represent relative position, not proportionate differences. Variations in local material prices, wages and practices make accuracy impossible. The relative costs, labor and material quantities given on these pages, are offered as an aid to preliminary selection only. Material and labor quantities for all plasters will be found on page 47. Quantities of material and ibor per 100 sq. yds. isf partition, be Material Quantity ^_0j)0r j 1 j USE ANALYSIS AND ECONOMICS (All supporting members are on 16" ctrs. unless shown otherwise.) Wood lath For plaster see page 47. 1450 pcs. 8 hrs. Practically displaced for both ceiling and side wall use by gypsum lath because of reduced fire pro tection and rendency to greater cracking and lath marking, particularly on fop floor ceilings. Rocklafh 5ee page 47 for plaster. Perforated Rocklafh See page 47 for plaster. 900 sq. ft. 6-8 hrs. A superior ceiling lath ond plaster construction at a competitive price. Resistance to bond failures and cracking forces is increased. No wetting required previous to plastering. Uniformly insulative. Wood lath markings do not show on finished work. Available nationally made to the same high stondords of excellence; no voriotions in quality or grode as with wood. . 900 sq. ft. 6-8 hrs. Perforations increase fire protection. Full hour roting for ceilings plastered on Perforated Rockloth is secured by applying five Vs"xl Vb" nails through Rocklafh into joists at each bearing and then strip ping each joint with metal lath strips nailed on with 1 galvanized 12 gauge roofing nails every 4", producing low cost 1-hour fireproof ceiling construction for wood frame structures. Joists must be floored with rough and finish floors to secure fire rating. Insulating Rocklafh See page 47 for plaster. 900 sq. ft. 6-8 hrs. Adds useful insulation at small cost. Metal foil also makes most effective vapor barrier. Excellent method of gaining insulation for low cost homes at increase in cost averaging 1c per sq. ft. of ceiling over regular Rocklafh. Since insulation is integral with lath there is no additional cost for installation. Weotherwood Plaster Base 900 sq. ft. 6-8 hrs. Weatherwood insulating plaster base is available at about 2c a sq. ft. increase over the cost of Rockloth. This standard type of integral insulation does not require an air space to be effective. Bond with plaster is ample. Lath marks do not show on the ceiling. . Diam. Mesh Metal Lath See page 47 for plaster. 105 sq. yds. ! I 8 hrs. For full hour fire rating metal loth must be nailed with 1 Vz" 1 1 gauge 7/16 head barbed wire roofing nails on 6" centers. Increased crack resistance because of reinforcement afforded by metal. Ideal ceiling construction where spans are long because of greater protection against deflection crocks in plastering. No lath marks on top floor ceilings. Joists must be floored with rough and finish floor to secure fire rating. Z-Rib Metal Loth See page 47 ter plaster. 105 sq. yds. 8 hrs. Z-Rib Metol Lath slightly more expensive than Diamond Mesh but stiffer construction. Will span joist spaces with less flexing under the application of plaster, consequently, saving some plaster. Cost com pleted about the same as small Diamond Mesh Lath above. Choice between these constructions is largely a matter of personal opinion. Rocklafh Rocklafh Clips No. 1 Clips No. 2 See page 47 for plaster. 900 sq. ft. 400 200 12 hrs. Supplies resilient system for ceiling constructions. Floated ceilings may be used on long spans with less danger of cracking. Increased sound insulation makes resilient system desirable on ceilings in apartment houses. Metol Lath No. 200 or No. 300 Resilient Clips 105 yds. j 675 16 hrs. Combines resilient principle of construction C-8 with steel reinforcement for plaster. A superior con struction for ceilings in wood frame buildings. Practically comploint-proof ceiling construction. 866T STOffg 40 YEARS OF PROGRESS THROUGH RESEARCH CEILINGS (Continued) Page : 1 Depth to Face Weight of Finished Sq. Ft. Ceiling (In.) j i 1 Fife ! I Resistance Heat Conductivity per (Minutes) Sq. Ft./Hr./ Diff. in ; Includes 8.T.U's. 'Includes Vt" { Rough and ; Yellow Pine Rough Floor) Finish Floor Suggested Decoration !' Relative ' Type Cost j No. See note| page 13 j 42 1 yB i 1 1 1 . ^ Vi 1.5 lbs. No test | ii | 2.0 lbs. ! No test j! .30 i .28 .75 lbs. No test .22 ^ Texolite, other point or poper II Texolite, other paint or paper ! hi i j Optional [ | CIO 1 1 1 I !cn ! 1 Cl 3 i CO CO CO , WEATHf.nwOOD / Finish hank. j y-ruPi^irJO .75 lbs. No test .22 1 .75 lbs. No test .22 Self-decorating VIII Cl 4 1 Self-decorating VII Cl 5 SUSPENDED r--J----- 1 r t'/i" BUUNEQ fi { fi. fucaiNO is _ / metal lath ASSEMBLIES 32 H I 3 to 5 lbs. No test Texolite, other paint or paper ( ,C16 24 1 32 3/i 1 24 32 1/2 i I i 24 Varies 32 i j 7.3 lbs. 1 7.4 lbs. 1 i | ! No test | i j No test j 'I | | Texolite, other point or paper Variations in insulation values of supporting structure prevent fixing hect losses through these constructions Texolite, other paint or paper II III I | Cl7 1 C19 7.4 lbs. j | | ! No test ! Texolite, other paint or paper IV C20 2 UNITED STATES GYPSUM COMPANY 4 NOTES Relative Costs--Higher figures in this column represent higher probable installed costs, lower figures; lower costs. They represent relative position, not proportionate differences. Variations in iocal material prices, wages and practices make accuracy impossible. The relative costs, labor and material quantities given on these pages, are offered as an aid to preliminary selection only. Material and labor quantities for all plasters will be found on page 47. Quantities of materia! and labor per lOOsq. yds. of partition, both sides. Material Quantity Labor | j ; | USE ANALYSIS AND ECONOMICS IAII supporting members are on 16" ctrs. unless shown otherwise.) Sheetrock Perf-A-Tape Optional! 900 sq. ft. 1 ui boxes* 12hrs. 10 hrs. j All of the universally recognized and well-known advantages of gypsum wallboard applied to ceiling construction. Either insulating Sheetrock or the inclusion of Red Top Insulating Wool in conjunction with regular Sheerrock is suggested for top floor ceilings. Sheetrock cerf-A-Tope Optional) : 900 sq. ft. j 1 Vi boxes* , 1 2 hrs. 1 0 hrs. . Stronger, more rugged construction than that described in C-10 at very slight increase in cost. More fireproof and more rigid. Weatherwood Barren Strips ' Optional * 900 sq. ft. 600 lin. ft. 8 hrs. 6 hrs. Lowest cost ceiling construction consistent with good building practice. Adds useful amount of heat insulation. Board can be used as it comes from the deoler or pointed and decorated immediately after installation or later. i Weother- wood Tile Furring Strips 900 sq. ft. I 900 ft. i 8- 1 0 hrs. 4-5 hrs. Very popular decorative ceiling treatment for new buildings or over old plaster in existing buildings. In new buildings 12 x 12 tile will require furring strips on 12" centers. 16 x 16 tile only require fur ring strips when joints are broken; for larger sizes furring strips can be omitted. Has all advantages of Ogee Edge described on page 48. 1 2 " Weatherwood Plank 900 sq. ft. 8-1 0 hrs. Not usually used in ceilings except where special decorative effects are desired, usually in large rooms, public buildings, restaurants, rathskellers, etc. The shape of the plank lends itself readily to rectangu lar ceiling designs in relief and particularly well for constructions domelike in nature. 3onacrete 11660-2200 6- 1 6 hrs. ; IbS. ' Best known, most universally used special plaster for application direct to interior concrete surfaces. Amount of plaster required and labor needed will vary somewhat with nature of the surface to which the material is to be applied. If concrete surface is sufficiently rough and void of greasy and oily materials, plastering costs are increased but slightly over normal plastering materials. Practicolly eliminates the hazard of applying plaster direct to concrete. is" Rib Loth ! 1 05 sq. yds. "or plaster see -=ge -47. 12-16 hrs. The use of 34" rib metal lath permits spacing of ceiling supports at not over 19", eliminating use of Vi" channels for ceiling construction purposes where light, pressed steel beams or bar joists are used. The standard construction m lightweight steel buildings of this type. Rib metal lath may also be be laid across the upper flanges of joists of this character to serve both as reinforcement and forms for laid across the upper flanges of joists of this character to serve both as reinforcement and forms for light concrete slabs, cutting construction costs and definitely reducing the time of construction. * J " Furring -honnets 4erol Lath 3r plaster sec 'age 47 : 750 lin. ft. 105 sq. yds. 20 hrs. When not spaced over 16" on centers. 3A" furring channels may be used to support metal lath ceilings where the supports for the channels are not greater than 4' on centers. The difference in economy between the use of rib metal loth and straight metal lath in constructions of this character is best determined after investigation of local prices. Further consideration governing the spans of each will be found on page 38 in paragraph 19 of the American Standard Specifications. ^ " rurring hannels l 1 6" 7 centers) , 2 ' Runner -hannels *etal Lath ' 750 lin. ft. ' 20 hrs. 250 lin. ft. ' 1 05 sq. yds. ; Standord suspended ceiling construction in fireproof buildings; its supremacy for the purpose has never been contested on either a utility or cost basis. The lightweight channel grillage is flexible in opplication, ornamental orches, groined ceilings and seemingly difficult framing are executed with ease by any competent lathing and plastering contractor. 'Perf-A-Tape combination box for 250 tin. ft. of joint. 0005 5T0QQ 40YEARS OF PROGRESS THROUGH RESEARCH uAs EXTERIOR WALL ASSEMBLIES INNER FACE -- Wood Studs Page Thickness of Applied ! Material* 1 tin.) ' ! Wt. of ; Applied ! Materials j /sq.ft. 1 i 32 y* 6.9 lbs. Special j Characteristics | j 1 Suggested Decoration Standard construction for frame buildings J Texolite, other paint or paper Type No. IWl 22 32 7/b 22 32 Vi 22 32 Vi 48 32 1 6.5 lbs. 6.5 lbs. 6.5 lbs. 5.7 lbs. Improved fire protection over IW1 Maximum fire protection in low to medium priced constructions. Texolite, other point or paper i i j Texolite, other j paint or paper IW2 IW3 Adds reflective insulation at low cost to !W2 j Texolite, other j Point or paper i IW4 i Adds standard insulation at slight additional costs Texolite, other paint or paper IW5 IT-TSHEET SOCK 24 32 34 24 32 34 26 | 22; 32 | , t/4 j 26 24 32 1 Vi 42 % 42 Yi 8.0 lbs. 8.0 lbs. 6.5 lbs. 8.0 lbs. 1.5 lbs. 2.0 lbs. Adds crack resistance. Increases plaster thickness. Texolite, other paint or paper IW6 Reduces plaster Quantities of IW6. Permits lighter gauge metal because of stiffening rib. Texolite, paint or ,i i other 1 paperj vv Spring "floated" wall. Reduced possibility of cracks due to structural movement. No loth or stud markings i i i Texolite, other | paint or paper l 1 ] i .w_ |0 ! i <i f i : j Combines excellencies of metal lath with proved advantages of floated wall principle ! T .. . ' ex0'lte' ofher p0,nt r paBer |W9 i j ; Dry wall construction reduces ; time of completion. With unfinished I joints costs less than plastering. Texolite, other Joints may be finished to simulate plaster at costs the paint or paper some or greater than plastering. : j ! IWl0 j | 1 , J __ More expensive and heavier than IWIO. Increases strength and fire protection -- ... Texolite, other ; P,nt or paper i IW11 1 ` UNITED 5TATES GYPSUM COMPANY Ml NOTES RELATIVE COSTS--The variation in possible combinations of materials makes t impossible to usefully relate costs of the constructions snown. The relative cost columr for the interior partitions 'Pages 6 to 91 will serve if all other conditions are alike. FIRE RESISTANCE--Similar variations in sheathing, masonry, etc., and lack of rests make comparisons of fireproofness difficult. The figures given unoer "Interior Partition Assemblies" iPages 6 to 9i should be helpful if used with discretion. HEAT INSULATION--Heat loss figures for assemblies of exterior wall materials may be secured bv reference to the current "Guide" of the American Society of Heating and Ventilating Engineers where many of them have been calculated. Those which have not may be quicxly calculated by *ollowng the data and instructions of the "Guide." Material and labor quantities for all plasters will be found on page 47. Quantifies of material and labor per 100 sq. yds. of partition, both sides. Moteriol |; Quontihy Labor Wood Loth For Studs see ooge 6. For Plaster see page 47. I 450 pcs. 8 hrs. i USE ANALYSIS AND ECONOMICS (All supporting members are on 16 ctrs. unless shown otherwise.! j This construction once excellent practice for wood frame structures has been almost entirely super seded by gypsum lath nailed directly to the fronting. Rockloth For plaster see page 47 ; studs page 6. Perforated Rocklafh For plaster see page 47; studs page 6. 900 sq. ft. 900 sq. ft. 11 6-8 hrs. 6-8 hrs. Insulating Rockloth For ploster see page 47; studs page 6. 900 sq. ft. 8 hrs. Weotherwood Insulating Ploster Base For ploster see page 47; studs 900 sq. ft. >age 6. 8 hrs. Diamond Mesh Metal Lath For plaster page 47; studs page 6. 105 yds. 8 hrs. Z-Rib Metol Loth For plaster see Dage 47 ; studs page 6. 105 sq. yds. . Rockloth No. 1 Resil. Clips No. 2 Resil. Clips I 900 ! 510 | 90 sq.ft. 8 hrs. 12 hrs. A superior, standard construction now ovoiloble ot costs no greater than those of combustible materials. Fire rating almost double. No industrial hazards due to infecrions from wood lath. No wood lath marking usually noticed on exterior walls. Use of perforated Rockloth increoses fire rating in wood frome buildings. Should be covered with full Vz" of ploster to reduce tendency to mark at perforotions. Lowest cost method of supplying combination vapor barrier and useful insulation for exterior walls ot slight (Ic per sq. ft. average) increase in cost for moteriol and no increase in lobor quantities. Construction maintains oil of the odvantoges of standord Rockloth as a plaster base and fireproofing material for wood frame structures. Combines well-known fiber board insulation qualities in an excellent plaster base. Weatherwood insulation does not require an oir space to be effective. Increase in cost over standard Rockloth plas tering base Is about 1 '/2c per so. ft- Can be used without increase in labor of application as insulation and plaster base are installed simultaneously. Plaster reinforced with metal. Provides increased protection against cracking forces. One hour fire rating. Standard construction for the better class job in wood frome buildings. Stiffening rib of Z-Rib Metol Loth permits greater spacing of supports or lighter gauge metol than that normally used for Diamond Mesh Lath. Permits some plaster economy. Priced somewhat higher thon construction IW-6. Completely plastered will normally result in a wall no more expensive than thot of IW-6. Walls fully floated on springs. Movement in supporting structure due to settlement or twisting of frame much less apt to produce cracks. Floating of wall free from studs eliminates both lath mark ing and stud marking on exterior wall construction. Metol Loth Resil. Clips No. 200 or No. 300 105 sq. yds. 16 hrs. 775 All of the advantages of 0 floated well, plus the reinforcement received from the metal loth. Maximum in volues for ploster work on exterior walls of frame buildings. Cosrs more and worth it. 'H Sheetrock Perf-A-Tope (Optional 1 900 sq. ft. 1 Vz boxes" 1 2 hrs. 1 0 hrs. Standard wallboard construction applied to exterior walls. Shortens time of completing the building. Fully decorable by any means. Use of Perf-A-Tape System seals the joints between adjacenr boards, producing o smooth and jointless appeoronce. Joints may also be covered with batten strips or left untreated in the modern manner. Vi" Sheetrock 900 sq. ft. i 1 2 Hrs. Heavier, full Vz" construction, otherwise identical to IW-10. Provides increased rigidity and fire protection. r!Perf-A-Tape combination box for 250 lin. ft. of joint. 40 YEARS OF PROGRESS THROUGH RESEAR I. sooe STOSS $ I EXTERIOR WALL ASSEMBLIES (Continued) WOOD STUDS INNERFACE Poge Thickness of Applied ' Moterials Mr.) Wt. of , Applied ! Materials , /sq.ft. SHtETROCK GRAIN BOARDS Z 50 Ve 1.5 lbs. rSHECTROCK TILL BOARD 53 1.5 lbs. wtAinr.wwuOD BUILDING BD 48 '/2 ///WLATMERWOOD TJLE j FURRING /? VVF AT HI. R'.VCOD FlNiMi / lunRlNG 48 1 Vi 49 }'A .75 lbs. .75 lbs. .75 lbs. is INSULATING 5HLTT ROC* 42 H 1.5 lbs. Special Characteristics Suggested Decoration Type No. i Adds beauty of fine wood grains to incombustible, unit wall construction Self-decorating IW12 Deeply pressed tile pattern pro vides dose imitorion of ceramic tile when enameled l Enamel 1 l IW13 i Low cost insulating unit wall construction--textured surface-- ., two co,ors ,1 ,.p ' : especially with Texolite i 1W1 4 Various sizes for interesting tile patterns. Several colors and textures i 1 Self-decorating. ; M be paint'd |1 j IW1 5 "Plank" may be varied in width and shade. Ogee edge on long joints Self-decorating. May be pointed i IW16 Identical with IW10 but provides bright metal foil insulation and vapor barrier at slight additional cost 1 Texolite, other paint or paper IW17 */r INSULATING SHLLTROCK -jj f'CEDTOP INS V 8LANK.LT 42 Vl i 60 1 2.0 lbs. 2 ox. V1--\f mld redtop ins PlankLT \kA - 60 Medium 4 oz. ~Z=L THICK PEDTO/ ins 5-ank.lt 60 Thick 6 oz. Adds bright metal foil insulation and vapor barrier to IW1 1 Texolite, other paint or paper IW18 Completely inclosed minerol wool ! blankets with vapor resistive face, automatically forming oir space ot inner face of studs, and vapor permeable enclosure at outer space. Insulation coefficient .27 B.T.U.'s per sq. ft. per inch of thickness per degree difference in temperature IF.I. Insulation added to wood stud wall by blanket and both air spaces is: 1" Blanket.................... 192 Medium Blanket ... .112 Thick Blanket................. 086 . Specify j sepa i rately i j : : i : a l 1 f UNITED STATES G YPSU M COMPANY NOTES RELATIVE COSTS--The variation in possible combinations of materials makes-it impossible to usefully relate costs of the constructions shown. The relative cost column for interior partitions 'Pages 6 to 9) will serve if all other conditions are alike. FIRE RESISTANCE--Similar variations in sheathing, masonry, etc., and lack of tests make comparisons of fireproofness difficult. The figures given under "Interior Partition Assemblies" iPages 6 to 91 should be helpful if used with discretion. HEAT INSULATION--Heat I oss figures for assemblies of exterior wall materials may be secured by reference to the current ''Guide" of the American Society of Heating and Ventilating Engineers where many of them have been calculated. Those which have not may be quickly calculated by following the data and instructions of the "Guide." Material and labor Quantifies for all plasters will be found on page 47. Quantities of material and labor per 100 sq. yds. of partition, both sides. * USE ANALYSIS AND ECONOMICS Material Quantity Labor i (All supporting members are on 16" ctrs. unless shown otherwise.) Sheetrock Cram Board ; j 900 sq. ft. 1 2 hrs. 1 Sheetrock Tile Board ` 900 sq. ft. I Weafherwood Bldg. Board For Batten Strips see PI2. page 8. i 900 sq. ft. I j 1 2 hrs. 8 hrs. Sheetrock Grain Board (see construction PI0 page 7) becomes more useful for exterior walls when backed with bright metal foil insulation which simultaneously provides heat insulation equivalent to '2* of fibre board plus a most desirable and efficient vapor barrier on the correct I warm 1 side for about Ic per sq. ft. more. Insulation integral with the wall finish requires no additional labor for installation. 1 For tile-like wainscots or full walls in bathrooms, kitchen, etc. Economical. Easily decorated with enamel. 1 Weatherwood Building Board frequently used in low cost building constructions for partition purposes is even more desirable on the inner face of the exterior wall because of the very useful insulation it supplies. Quickly installed, it con be erected with or without batten strips. ' : 2" Weatherwood Tile 1 x2 Furring Strips 900 sq. ft. 680 lin. ft. 8-10 hrs. 4-5 hrs. This construction, of course, duplicates the partition construction of Type P-13, providing identical values, plus the desirable increase in insulation secured, simultaneously, without extra labor. Weafherwood Finish Plank For Furring see 1W \ 5 above. i 900 sq. ft. 8- 1 0 hrs. Applied verticolly or horizontally, this construction odds insulation value to exterior walls and con tinues the other desirables described in the partition section. Furring strips will not be required if the planks are applied horizontally. If they are applied vertically, planks of less than 16" width will require cross furring on 1 6" centers. 5 s " Insulating 1 Sheetrock 1 900 sq. ft. 1 |' Insulating 1 Sheetrock j 900 sa. ft. 1 1 2 hrs. :1 j j 12 hrs. | The proper exterior wall where Sheetrock is used. The additional insulation afforded by the bright metal foil provides maximum insulation values considering costs plus a most efficient vapor barrier without any additional labor expense. Material and labor quantifies for treating joints with Perf-ATape are given on page 14 under Type IW-10. Identicol in type and utilities to IW-17 above, except heavier Sheetrock provides more rugged con struction with added fireproofing value ot slight additional cost. Red Top Ins. Wool Blcnket either 1 " Med. or Thick Wall Work 1 1 V* hrs. 84fit SQ. ft. INef as sold) Ceil. Work applied 1 from above 7 Vi hrs. i Ceil. Work applied from I below | 1 5 hrs. j i j The theoreticol hear insulation values added to any construction by Red Top Insulating Wool Blankets are shown in the "Special Characteristics" column on the opposite page. The theoretical advantages of insulation are rarely obtoined in structures unless the insulation is properly designed ond installed. Red Top Insulating Wool Blankets offer these lin many cases "exclusive") desirables, designed to procure maximum insulative results in actual construction. 1. The insulating wool is firmly attached to the enclosing envelope. The envelope, in turn, is firmly tacked to the supporting wood framework so thot the insulation is held in place permanently--no sagging or bare spots. 2. Each blonket is uniformly thick throughout its width. There is no "pinching" or reduction in thickness ot the edges. 3. More thorough-protection ogainst the entry of vapor (no condensation within wall spaces 1. 4. Low heot capacity-----less heat is retained in the blanket to be fed back to the house in the summertime. 5. Rapid installation. Completely incombustible wool actually increases the fireproofness of any type of wall or ceiling construction. 6. Harmless to health--odorless--provides no food or nesting material for vermin. 7. Three thicknesses--which fit the needs of any climate or pockerbook. 8. More effective insulation per dollar spent. 17 40 YEARS OF PROGRESS THROUGH RESEARCH , ^triCJCT EXTERIOR WALL ASSEMBLIES (Continued) INNER FACE --Masonry ! MS of Masonry to Finished Face Mn.) Inner Face yIn;s;;ta-;ll;e:d 22 1 ys 32 , 6.5 lbs. Special Characteristics Suggested Decoration Type No. Best reasonably priced method of finishing interior of masonry wall with plaster Texolite, other paint or paper IW19 22 1 Va 32 : 6.5 lbs. Adds reflective insulation ana effective vapor barrier to IW19 Texolite, other point or paper | IW20 58 : 2 32 : 5.7 lbs. Adds standard insulation at small cost Texolite, other paint or paper IW21 " Y.\V r wood flipping rZ-R'B METAL LATH / PL AST L P 24 1 32 ; 24 32 00 b cf Y 1 7.5 lbs. Better resistance to crack producing distortions Texolite, other paint or paper IW22 Stiffening effect of Z-Rib reduces plaster quantities. Texolite, other paint or paper IW23 On furring strips, this "unit" wall construction reduces com pletion rime. Can be finished to simulate plaster at costs about the same or greater than plaster Texolite, other paint or paper IW24 i Adds strength, fire protection at slignt costs to IW24 Texolite, other paint or paper IW25 UNITED STATES GYPSUM COMPANY Adds reflective insulation of bright metal foil to IW24 Texolite, other paint or paper IW26 Low cost insulative unit wall construction Self-decorating. Mcv be painted, especially with Texolite IW27 Decorative and insulative tiles in many sizes for many patterns Self-decorating. May be painted, especially with Texolite IW28 Heavier, stronger, more insulative than IW28 Self-decorating. May be painted, especially with Texolite IW29 Interesting blend of colors. "Plank." width may be varied Self-decorating. May be painted, especially with Texolite IW30 NOTES RELATIVE COSTS--The variation in possible combinations of materials makes it impossible to usefully relate costs of the constructions shown. The relative cost column for interior partitions I Pages 6 to 91 will serve if all other conditions are alike. FIRE RESISTANCE--Si milar variations in sheathing, masonry, etc., and lack of tests make comparisons of fireproofness difficult. The figures given under "Interior Partition Assemblies" IPages 6 to 91 should be helpful if used with discretion. HEAT INSULATION--Heat loss figures for assemblies of exterior wall materials may be secured by reference to the current "Guide" of the American Society of Heating and Ventilating Engineers where many of them have been calculated. Those which have not may be quickly calculated by following the data and instructions of the "Guide." Material and labor quantities for all plasters will be found on page 47. oiQuantities 100 sq. yds. JZttoXKJZ Material 1_ i ,, Quantity i Labor ! 1! USE ANALYSIS AND ECONOMICS *(All supporting members are on 16" ctrs. unless shown otherwise.) K Wood Furring Rockloth 680 ft. 900 ft. 4-5 hrs. 6-7 hrs. Standard furred construction properly safeguards plaster and lath against moisture difficulties, stops efflorescence from masonry appearing on inner plastered wall. Preventing further difficulties with paint and other types of decoration. Adds useful insulation at no cost. Wood Furring Ins. Rockloth 680 ft. 900 ft. 4-5 hrs. 6-7 hrs. Wood Furring 680 ft. Weather- wood 900 sq. ft. For plaster see c>age 47. Wood Furring Vletal Lath For plaster see page 47. 680 ft. 105 sq. yds. Wood Furring 680 ft. Z-Rib Metal Lath 1 05 sq. yds. For plaster see p age 47. 4-5 hrs. 6-8 hrs. 8 hrs. 4-5 hrs. 8 hrs. Wood Furring 3 9" Sheetrock 680 ft. 900 sq. ft. 4-5 hrs. 12 hrs. Insulating Rocklarh adds a plus value to construction IW-19 in additional useful insulation at a cost of approximately Ic per sq. ft. Since the insulation is installed integrally with the Rockloth there is no expense for its installation. The effective vapor barrier of the metal foil on the Rocklafh minimizes the possibility of deleterious condensation in the air space or within the masonry as entrance of vapor which could condense is restrained. Supplies effective insulation of populor insulation boord integrally with the plaster base at no cost for installation of the insulation. Additional cost for the material overages 2c per sq. ft. above Rocklath cost. Adds resistance to crocks because of steel reinforcement. Increased fire protection. A superior con struction for the better class building. Z-Rib Metal Loth of eaual weight slightly more expensive than small Diamond Mesh but saves suffi cient plaster to offset difference. See same construction under Interior Partition Assemblies for more complete analysis and comparison with Diamond Mesh Lath construction. Standard wallboard construction on the interior of masonry walls for almost 20 years. Air space back of Sheerrock produces insulotion value and prevents difficulties from efflorescence from masonry. Either point or wallpaper may be applied to the construction. Insulating Sheetrock IIW-6) may be substituted for slight increose in material cost. Wood Furring Vi" Sheetrock 680 ft. 900 sq. ft. 4-5 hrs. 1 2 hrs. V2"The use of Sheetrock odds additional fire protection, rigidity ond ruggedness at 0 slight increose in cost. * Wood Furring Ins. Sheetrock Wood Furring ' V' Weather- wood Building Boord 680 ft.' 900 sq. ft. 680 ft. 900 sq. ft. 12 hrs. 4-5 hrs. 8 hrs. Adds the value of reflective insulation as in construction IW-20 above at a similar increase in cost with no expense for installation labor. Lowest cost method of properly finishing the interior of a mosonry wall. Weotherwood building board may be exposed as it comes to the job or pointed. The joints between adjacent units moy be covered with batten strips or left frankly exposed. Material and labor quantities for the batten strips will be found on page 9 in the partition section. Wood Furring Vz" Weatherwood Tile 680 ft. 900 sq. ft. 4-5 hrs. 8-1 0 hrs. Adds definite decorative effect to construction IW-27 at a slight increase in price. Spacing of furring strips designed for use of 16" tile. 12" tile will require furring spaced on 12" centers, for cost of which see poge 9 in the partition section. Wood Furring 3/J " Weatherwood Tile 680 lin. ft. 900 sq. ft. 4-5 hrs. 7-9 hrs. Thicker construction, increased insulation and greater freeoom in decorative design because of the variety of sizes available. Readily fits stondord trim used for loth ond plaster. Wood Furring '/i Weather- wood Plank 680 lin. ft. I 900 sq. ft. 4-5 hrs ' Wall must be cross furred, placing furring parallel to floor, if Weotherwood plank Is installed with long edges vertical. Use vertically applied furring if planks are to be opplied horizontally. Shows ail 8-10 hrs | r^e e=onomy or|d beauty of partition construction P-4, plus useful insulation for exterior wall use. OiE. The procrice of applying plaster direct to the inner face of masonry exterior walls, while common in seme parts of the country, is not generally considered as good practice unless masonry is known to be water-tight and well laid on fully bedded mortar joints. 40 YEARS OF PROGRESS THROPGH RESEARCH" EXTERIOR WALL ASSEMBLIES (Continued) OUTER FACE --Wood Studs Page Thickness of Applied Materials (In.) t 44 j 1 Wt. of Applied Materials /sq. ft. Special Characteristics . Suggested 1 Decoration i ! 3 lbs. Fireproof, strong sheathing. Tight joints, no knots. Does not require building paper. Installed costs less than wood Paint Type , No. 1 EW4 44 | 24 40 | I '/2 14 lbs. With gypsum plaster on Rocklath j or metal lath for interior face this construction provides moxi- ; Self-decorating mum fire protection in stud i exterior walls . ! EW5 | i : 1 !-3- ^ Nailex , Fasteners are j used--see i page 67) 3.8 lbs. i I All advantages of EW4 plus j incombustible siding !! | j Self-decoroting EW6 58 1 1.8 lbs. Adds standard insulation. Tongued | and grooved long joints plus ! asphalt coating eliminate need for > Paint building paper j EW7 58 j 24 1 40 11/2 '1 12.8 lbs. l-i-i 11-3- if 6658 Nailex Fasteners are upsaegde--67s)ee 2.6 los Ihsulative shearhing plus maximum stucco job. Building paper not needed. Insuiative sheathing plus advantages of asbestos siding (See EW3). No roofing felt required under siding j ! Self-decorating ! : EW8 i 1 i 1i |Self-dEeWco9rating7 j OUTER FACE -- Masonry I 1 1 1 1 oo Thickness i from Support | to Finish ! Face (In.) l wt. of ! Inner Foee : Special Installed | Characteristics /sq- ft. | i : Suggested j Decoration j i Type No. i Jj! 2? Self-decorating EW1 ^ Low cost stucco with all advan 1 12 lbs. tages of mill-mixed product 24 1 |2 12 lbs. Best stucco construction. Uniform ity and permanence of mill-mixed product Self-decorating EW2 -if 20 66 l A 1.8 lbs. 1 .UNITED STATES GYPSUM COMPANY Beauty of wood grain and color with permanence and low uokeep of asoesros cement j ! Self-decorating ; 1 1 EW3 l 'Iff . I** NOTES RELATIVE COSTS--The variation in possible combinations of materials makes it impossible to usefully relate costs of me constructions shown. The relative cost column fjr interior partitions (Pages 6 to 9) will serve if all other conditions are alike. FIRE RESISTANCE--S imilar variations in sheathing, masonry, etc., and lack of tests make comparisons of fireproofness difficult. The figures given unaer "Interior Partition Assemblies" IPages 6 to 9) snould be helpful if used with discretion. HEAT INSULATION--H eat loss figures for assemblies of exterior wall materials may be secured by reference to the current "Guide" of the American Society of Heating and Ventilating Engineers where many of them have been calculated. Those which have not may be quickly calculated by following the data and instructions of the "Guide." Material and labor quantities for all plasters will be found on page 47. Quantities, o# material and 1 100 sq. yds. of partition, bo ?h,id" Material j Quantity Labor j ] USE ANALYSIS AND ECONOMICS fAH supporting members are on 16 ctrs. unless shown otherwise.) Cvplop 900 sq. ft. 6-7 hrs. Stronger than horizontally applied wood shiplap isee page 45). Costs less to buy and less to apply than wood sheathing. Adds a full Vi" of incombustible fireproof material and increases protection against fires which originate from without the building. Tongued and grooved edges of Gyplap fit snugly. Gyplap contains no knot holes or wood shakes, does not rot, warp or exude resinous materials; completely odorless and vermin-proof. Cyplop Stucco Mesh Oriental Stucco see page 47. 900 sq. ft. 105 sq. yds. 6-7 hrs. 12-14 hrs. Essentially a fireproof construction for wood stud walls achieved at relatively low cost. All of the economies of Cyplop over combustible constructions are utilized, plus the well known strength, quolity, color and texture Isee page 40) of Oriental Exterior Stucco. Mill mixed. Oriental colors do not streak. Properly applied, do not show joinings between successive applications. Water resistive. Mixed with minerol colors which do not fade and which are nor effected by the cementitious materials in the stucco itself. Becomes stronger and more water resistant with oge. Gyplap Wood Furring 1 6"centersl 'JSG Asb.-Cem. Siding 900 sq. ft. '680 lin. ft. 9 squares 6-7 hrs. 4 hrs. 1 8-36 hrs. This standard construction requires furring strips on which to nail the asbestos-cement siding. Using "Nailex Fasteners" (page 671 the furring strips are omitted, less nails and but 14 to 20 man hours of labor are required. Weather wood Asphalt Coated Sheathing 900 sq. ft. 6-8 hrs. Weatherwood asphalt coated sheathing supplies structural bracing ability as well as heat insulation. Water repellent asphalt coating and tongued and grooved long joints (vertical joints made over stud ding) . Eliminates building paper unless lending agency regulations demand it. Use of building paper over Weatherwood does not seriously affect costs. Weatherwood Sheathing Asbestos Coated Stucco Mesh 900 sq. ft. 105 sq. yds. 6-8 hrs. j |ntegro| insulation applied in sheathing simultaneously for no additional labor cost. The advantages 1 of Orientol Stucco previously mentioned, reinforced with metal. (See construction EW-5 above.) 12-14 hrs.! Weather- I wood Sheathing | 900 sq. ft. Wood Furring 1 680lin. ft. USC Asb.-Cem. j Siding ; 9 squares ; j 6-8 hrs. j 4 hrs. : 1S-36 hrs. The alternative construction mentioned in EW-6 which eliminates wood furring is as applicable here as it is with Gyplap. Its use results in a similar saving over the construction shown here. Nailex Fasteners hold the shingles very tightly to the sheathing. The resilient nature of Weatherwood pro vides a cushioning effect resisting rattling tendencies. Oriental Ex- | Quantity and labor fig- fenor Base ' ures for Oriental Base Coat & Oriental 1 Coa t and Stucco on Stucco 1 page 47. ! Hundreds of buildings receive Exterior Stucco coots direct on terra cotto tile, hollow brick, common brick and sufficiently porous types of stone masonry. Direct application of stucco base coot to masonry by proper mechanics can be considered as standard construction ond one providing definite economy. Wood F`jrnng 680 lin. ft. _ ' 6 centers) ;rucjo Mesh 105 sq. yds. ^"r exterior irucco costs see page 47. 4 hrs. 12-14 hrs. A superior construction to EW-I at the oddifional cost for furring and stucco mesh. Proviaes insulotion of air space between stucco base coat and masonry, resulting in increased resistance to efflorescence difficulties on stucco and definite reductions in the water hazard in the masonry. All of the well known advantages of o fine mill mixed stucco are attained in the Orientol Stucco finish. Wood j f"""* | 680 lin. ft. JJSC Asbestos v-ement Siding 1 9 sqs. | 4 *1rs- 1 j 18-36 hrs.| A simple, low cost method df getting the effect of wood siding on either all or selected exterior masonry wolls and attaining the permanence and fireproofness of completely incombustible materials throughout. USG Glarex Asbestos Cement Siding protects against discoloration and accumulations of dirt, providing a surface which con be readily washed when desired simply and at low cost with fu|| restoration of its original beauty. 8002 2I0HS Gypsum boards with o tough*fibrous covering, 16x32 and 16x 48 in., % in. thick. Readily nailed to construction. Bond perfectly with gypsum plaster. PLAIN ROCKLATH Rocklath* does nor burn or readily transmit high temperatures and when plastered with gypsum plasters is fireproof. It contains noth ing to disintegrate or corrode -- no pitch, resin or gum to stain the plcsrer. The uniform suction of Rocklath prevents plaster from slipping during application and insures a uniform bond. U. S. Bureau of Standards tests show that on 864 lbs. per sq. ft. pull was required to separate ploster from gypsum lath--a safety factor of 144. Rocklath is easily erected. A bundle of boards (32 sq. ft.) is easily carried by one man. There ore no rough edges or splinters. One piece covers the same area as 9 wood lath and requires half the nails. Boards score and cur without waste. It is not necessary to wet Rocklath before plastering. Rocklath keeps the moisture of fresh plaster from the frame, which prevents swelling of wood members. Walls and ceilings dry quickly. Walls of Rocklath and gypsum plaster cost less than metal lath and plaster, ond little, if any, more than wood lath and piaster. Sizes--16x32 in. and 16x48 in., Vs in. and Vi in. thick. PERFORATED ROCKLATH By perforating Plain Rocklath at regular intervals, applied plas ter is mechanically keyed as well as bonded to the lath. The persistence of this "dual" bond under fire exposure increases the fire rating of wood stud partitions made with Perforated Rocklath and gypsum plaster. It is cut, fitted, and applied ex actly like and has all the speed and economy of Plcin Rocklath. ONE HOUR FIRE RATING At the conclusion of tests conducted in accordance with the American Standards Association Fire Test Specification, a Per forated Rockloth partition was shown to have qualified for a onehour fire rating. After the fire test, the wall successfully withstood a standard hose stream with a considerable margin of safety. This achievement makes it possible to construct bearing par titions of wood studs, Perforated Rocklath and Sanded Gypsum Plaster, providing real fire protection for frame buildings at costs comparcble to those of combustible designs. INSULATING ROCKLATH Fully 75% of the heat lost from or entering buildings is radiant heat. Bright metal foil is both a highly efficient reflector and at the same time a poor radiator of radiant heat. Insulating Rocklath is made by permanently attaching a sheet of bright metal foil to the back'of Plain Rocklath during manu facture. When applied with on air space of not less than % in. next to the foil. Insulating Rocklath offers thermal insulation equivalent to that of Vi in. fiber insulation board. The metal foil provides c highly efficient vapor barrier (on the warm side where one is needed) to control condensation. Sizes--Same as Plain Rocklath above. Applied like Plain Rockloth. PACKAGING: ^8x16x32 in. in bundles of 6 pieces, covering 21 V3 sq. ft. 4sx 16x48 in. in bundles of 6 pieces, covering 32 sq. ft. UNITED STATES GYPSUM COMPANY Aff I *Reg. Trade Mark APPLYING ROCKLATH NAILED ON See Also USG Resilient System, Page 16 ! : : I; : : Cutting Specifications--See page 35. 1 1 I : i Noil Spacing and Joint Locations ; ! Roody for Plostortng Scole of All Derails On This Page: V* " = 1'0 BRIDJOINT METHOD (Nailed and Clipped On) In the Bridioint method, the short ends of each piece of Rocklath meet in the area between the studs or joists and not over the studs. W-22 Bridjoint" Clips are used to attach the loose ends to the Rocklath immediately above and below the joint; otherwise, each piece of Rocklath is nailed with five noils in each support in the regular manner. Rocklath is not nailed to frame in corners. W-33 clip holds the boards together. At ceiling and wall angles two nails are used per board, per stud--see section at right. Right--Position of Nails. Clips and joints Far Right--Clips and Wall-Ceiling joint W22 cup .______ i CLIP --^ If W-33 w-: *oc*. etnc of n*U dt^nc- no* of COiwftg Specifications All Rockioth is to be applied to the framework by the Bridjoinr method, using W-22 clips in the field and W-33 clips at all angles. Five nails are driven into every stud each Rocklath unit crosses, except on boards at ceiling and wall angles. Here only two naiis are used per stud and these are kept as fur away from the angle as possible. FREFLOTE METHOD (Clipped On) In the Freflote method. Freflote Clips (No. 63) rake the place of the nails used in me Bridjoint method to fix the Rocklath to the construction. There are, then, less nails to drive and the swiveled clips permit considerable mo tion in the framework without putting strains on the lath or plaster. At all corners and angles the lath are not attached to the framework in any way but are held to each other by W-33 clips as in the Bridjoint method above. Right--Position of Clips and Joints For Right'--No. 63 Clip i No. 63 CLI P i Specifications All Rocklarh is to be ooplied by the Freflote Bridjoint method, using Freflote Clip No. 63 to attach board to framework in the field ond Bridioint Clip W-22 ta attach the short ends of every board, which must not oe placed over the studs, to the abutting boards above ond below tne joint. APPLICATION METHODS COMPARED (1) Nailed On--The standord practice. On average jobs better than wood lath, usually costs as little or less, when plastered. (2) Bridjoint--Reduces cracking caused by bulging or warped studding and joist movements; less tendency to crack at corners. Cost--same as or slightly more than the above. (3) Freflote--Fully clipped on with swiveling clips; provides air circulation between supports ond lath; increased sound insulation of from eight to ten decibels over (1) and 12). Clips provide plaster grounds on ceilings, insuring full plasti coats; save naiis and labor of application. Generally somewnot more expensive than ( I ) and (2). (4) Resilient System--(See page 26)---Fully floated walls which permit maximum frame movement without piaster cracking for both ceilings and woils. Maximum sound insu lation. Cost--about 25 per cent more than standard nailed on job. *Reg. Trade Mark 40 YEARS OF PffOGRESS*THROUGH RESEARCH^ BB012 2010 Wc manufacture metal lath in all types and weights in standard and special metals, and a full line of metal lath accessories,for quick national distribution. DIAMOND MESH LATH--Small mesh (5/16 in. x 9 16 in.) facilitates application and reduces mortar waste through droppings. Provides perfect key. Also made in self-furring or corrugated types. V4-IN. Z-RIB LATH--Unique "Z" type ribs (Va in. deep x 1 Vz in. o.c.) odd rigidity. Provide shelves to hold wet plaster, front and back, without waste. 4-mesh Z-RIB LATH--Companion product to Va-'m. 2Rib Lath, but has smaller mesh opening and comes in 27-in. width. -f EXPANDED STUCCOMESH -- Diagonal strands provide distribution of steel to overcome initial shrinkage. femperoture changes, wind stress-protection against unusual shocks. 0~i J DIAMOND MESH 1ATH i Sheet Size: 27x96 in. 24x96 in. ! Typt of Stoat Weight in Lbs. per Sq. Yd. Max. Span^a j i Heaviest Rei. loth, wood costt iconstruction i Open heorth steei, { poimea black. ; Cooper bearing steel, painted black Cut from galvanized sneers i Armco Ingot Iron, ; pointed black Ceiling, 2.2, 2.5, 5,0, 3.-4 1 6 in. Woll, 2.2ft. 2.5*!, 3.0, 3.4 | 1 6 in. 2.5, 3.4 2.5tt, 3.0" 3,4 i Recommended Uses All-purpose iath tor plom ana ornamental plastering. Vs-IN. Z-RIB LATH Sheet`Size: 24x96 in. Ooen hearth steel, pointed black Copper bearing steel, painted black Cut from galvanized ; sneets | Armco Ingot Iron, 1 painted black 2.75, 3.C, 3.4 3.on, 3.4 3.4 3.4n Ceiling, 19 in. Wall, 19 in. M For nailing on wood construc tion or tying on metol furring . 4-mesh Z-RIB LATH T Sheet Size: 27x96 in. Open hearth steel, painted black Cooper bearing steel, pointed black Cut from galvanized sneers Armco Ingot Iron, pointed black 2.75, 3.0, 3. 3.077, 3.4 3.4 3.477 Ceiling, 19 in. Woll, j 19 in. II Especially adaptable for tile backing 3/s-IN. RIB LATH Sheet Size: 24x96 in. Open heorth steel, pointed black . Copper bearing steel, painted block Cut from golvanized sheers Armco Ingot Iron, painted black 3.0, 3.4, 4.0 3.0^, 3.4, 4.0tt 3.4, 4.0-* 3.4, 4.0- + Ceiling, 19 in. Woll, 19 in. !1 i For floor end ceiling construc tion witn steel |Oisrs; ceilings under steel tile construction, ond where wide spacing of supports is necessary 1%-IN. RIB LATH . Sheet Size: 24 in. wide x 8. 10. 12 ft. EXPANDED STUCCOMESH Sheet Size: 48x99 in. : ' - Ooen hearth steel, painted block Copper bearing steel, pointed black Cut from galvanized sheets Armco Ingot Iron, pointed black .50, .60, .75 .son, .eon, .75n i Figures for ,oOt? 44" rib loth ,.M .75? - in lbs. per Sq. ft.) Ooen hearth steel, painted black Cooper bearing steel, : pointed black Cut from galvanized ! sheets i 1 1.8, 3.6 1.8, 3.6 1.3TT, 3.677 ! Sinee uses ore differ ent from foregoing, span fig ures not applicable I i IV m For centering and reinforce ment of concrete roofs and floors; ploster partitions and ceilings on extremely wide spocmg of supports; special work; columns, balconies, etc. Base reinforcement for exterior stucco ''^Maximum soon of maximum weight. Based on wood construction. T'T' quqIs least expensive; "II" eauols more expensive, etc. ftMade especially to order. PACKAGING: Dia. Mesh, Z-Rib and H in. Rib: ten 27x96 in. sheers (20 sq. yds.) per bundle, and nine 24x96 in. sheets (16 sq. yds.) per bundle: V in. Rib: nine sheets 24 in. x 8 ft., 10 ft., or 12 ft. long per bundle. Stuccomesh: ten 48x99 in. sheers (36^3 sq. yds.) per bundle. METAL LATH ACCESSORIES BB012 2012 fit */. Trade Mark 40 YAR5 OF PROGRESS THROUGH tESEAROHi ! tfcS resilient plastering system-' fJSG Resilient Clips -float Standard plastering assemblies to frameworksteel, masonry, 'wood--obviating many disadvantages of older constructions. LESS STREAKING Unequal condensation causes the charac teristic streaking of plastered walls ond ceilings. The condensation is greater where the plaster contacts the supporting frome members. USG Resilient Clips hold the plaster away from the framework permitting al most complete equalization of the con densation. Streaking is thus practically eliminated. P SOUND INSULATION Sound striking rigid walls sets up vibra tions which are transferred to framing members ond carried to adjacent rooms. With the USG Resilient Systems a cushion ing barrier is thrown in the path of the sound. A Rocklath Resilient partition, built ac cording to test specifications of the A. S. A., showed a sound reduction of 51.9 decibels. This is at least equal to two 3-in. tile partitions with 1-in. air space, an ac cepted satisfactory soundproofing con struction. "FLOATED" Plaster crocking due to normal frame movement is greatly reduced with the USG Resilient Plastering Systems. When frame movement occurs, it is absorbed by the clips much as road shocks are absorbed by automobile springs. The flexibility of these systems replaces the rigidity of ordinary plastered con structions without sacrificing strength. Specifications--All walls (and/or) ceil ings are to be installed by means of USG Resilient Plastering System Clips following the directions for installation furnished by the manufacturer. UNITED states gypsum company ^ M B flo is ra a o ia w FOR ROCKLATH WOOD CONSTRUCT^ ^plaster 3 a NO.2 ROCKLATH '"Clip ' ^-PLASTER MASONRY CONSTRUCTION FOR METAL LATH WOOD CONSTRUCTION NO.200 CUP '--plaster MASONRY CONSTRUCTION VV FURRING CHANNELS no^oo : clip--*;;. WIRED .'.CL*I.P--S'.a. TO j . * 40 YEARS OF PROGRESS THROUGH RESEARCH BB013 2014 tfcS TRUSSTEEL STUDS USG Trunted* Studs permit enclosure of pipes, conduits, eir ducts, both tically and horizontally, within the finished well. ADVANTAGES Ducts, conduits and piping may be installed during construction or as alterations later. Ducts moy be as large as space between stud flanges--see sizes below. USC Trussteel Studs are strong yet light in weight--a fully plastered Trussteel Stud (3/1") partition weighs but 15.3 lbs. per sauare foot. Dead load on structural mem bers is less thon with other type constructions. With gypsum plaster on metal lath, a fire-resistant partition with a I-hour fire rating is provided. Attachment shoes permit speedy, substan tial attachment and o -4-in. range of adjust ment over actual stud length for varying ceiling heights. Shoes may be attached by wiring or crimped with pliers. Either method is equally sturdy. All parts are quickly in stalled with standard tools. Runner tracks, light gauge and easily cut with tin snips, are flexible ond follow con tours of irregular floor surfaces. They are noiled to concrete floors with stub noils. No costly expansion bolts are required. Holes, spaced 2 in. apart, are in the flange of the track for tieing metal lath at the top. These also provide a convenient guide for stud spacing. Slots in the web of the runner track facili tate tieing track to metal lath ceiling. Because USG Trussteel Studs provide a rigid support for the metal plaster base. plastering is os easy os with the usual metal lath job. The type of lath to be used de pends upon the stud spacing. STRENGTH TESTS Results of tests conducted by the Roymond G. Osborne Laboratories, Los Angeles, during November 1937 proved that USG Trussteel Studs had more than adequate strength for building construction practices and were accordingly granted approval for use under the Pacific Coast Uniform Building Code requirements. Tests conducted by the USG Laboratories in December 1939 indicated USG Trussteel Studs to be far stronger than punched channel studs at the failure point, and a negligible difference at the first plaster crack point. SIZES USG Trussteel Studs are made in lengths from 7 ft. to 20 ft., inclusive, in increments of 3 inches. Lengths of from 14 to 20 ft. are supplied in two sections, complete with splicing feature. These are the stock or "fixed" lengths. The adjustable feature on each of these lengths permits adjustment to 4 inches over the stock length. Widths are 2, 3, 3!4, 4 and 6 in. Runner tracks ore made in 8 ft. 2 in. lengths. because there are only 3 simple elemcftti. Ducts ond Conduits--Deduct f's in. from nominal width cf stud for maximum duct size partition will accommodate. ENGINEERING DATA Stud Specings--The following types and weights of metal lath are recommended for various stud spacings: Type and Weight of Red Top Metol Lath 2.5 lb. Diamond Mesh 3.0 lb. Diamond Mesh 3.4 lb. Diamond Mesh 2.75 lb. '/b" Z-Rib Lath 3.0 lb. Ye" Z-Rib Lcth 3.4 lb. Ye" Z-Rib Lath 3.0 lb. %" Rib Lath 3.4 lb. Ye" Rib Lath 4.0 lb. Vs" Rib Lcth Recommended Trussteel Stud Spacing 12 13 Yi 16 inches inches inches 16 inches 16 inches 19 inches 24 . inches 31/2 inches 31/z inches Length Limits--Maximum ceiling heights recommended for various size Trussteel Studs are 2-in. Stud, 10 ft.; 3 and 3Vi-in. Studs, 1 6 ft.; 4-in. Stud, 1 8 ft., and 6-in. Stud, 20 ft. Studs exceeding 12 ft. in length should also be braced horizon tally with a 3-3-in. channel at 4 to 6 ft. vertical intervals, to give the partitions lateral strength. Finished Wall Thickness--Based on plastering to a 3/i-in. ground measured from face of stud, USG Trussteel Stud walls will finish to the following out-to-out wall thicknesses; 2 -in. Trussteel Stud................................. 3/2 -in. Finished Thickness 3 -in. Trussteel Stud................................. 4/2-in. Finished Thickness 3Vi-in. Trussteel Stud.............................. 43/i-in. Finished Thickness 4 -in. Trussteel Stud................................. 5Vi-in. Finished Thickness 6 -in. Trussteel Stud................................ T'/i-in. Finished Thickness Millwork should be ordered to fit the above wall thicknesses. SPECIFICATIONS Materials--USG Trussteel Studs, Runner Tracks ond Attachment Shoes of size shown on drawings. Method--Fasten Runner Tracks to concrere with '/z-in. stub nails; wire to suspended ceilings every 16 in. Align Runner Tracks accurately. Space studs 16 in. o.c. (rib lath), 12 in. o.c. (diamond mesh lath) ; fasten each stud to Runner Track with two Attachment Shoes at both top and bottom, each wired or crimped to stud. Partitions 1 2 ft. 0 in. or more in height to be braced by row of horizontally applied %-in. channels wired across studs. Rows of bracing to be not over 6 ft. 0 in. on centers. Where Trussteel Stud Partitions abut other constructions, nail or toggle bolt a Runner Track vertically to the wall at each abut ment. All comers and intersections of Partitions to be formed witn four Trussteel Studs. M m t-9 ?s UNITIOv STATES GYPSUM COMPANY CONSTRUCTION DETAILS 40 YEARS, sOE PROGRESS THR BB012 2016 XTaS CYFiUM ADVANTAGES Time Saving 'JQuick, imUim t cniplcd with vapid tliying saves'imc. Euildiap can tie decorated and ec- copied xjuickly. ' . ; Fireproof :> . : ^ Cypsum plasters provide fire protection at io additional cost. . Applicable Work with equal facility on any type of lathing ' ^material. Elasticity and slip ease the plasterer's job...-, ....:r.; Adaptable to Decoration . ' Cypsum plasters are adaptable fro ^decoration with any anaterial ordinarily arsed on plastered .surfaces.-'' 7-v- " Uniform ^ Laboratory control ansnres that plasters manu factured at all (JSC mills will produce like results. Comply with Standards All USC plasters comply with standards of the American Society for Testing Materials, federal Departments and construction agencies.- GYPSUM FIREPROOF Gypsum is a sedimentary rock, technically, "hydrous calcium sulphate." When found in proper purity it is quarried or mined, crushed, ground and calcined (partially dehydrated) to produce a cement. Its time of set is controllable between wide limits through the use of chemical accelerators and retarders. Special processes developed through long research hove created a series of woll plasters made of gypsum which will consistently answer every building need; available ir> like quality everywhere. Gypsum plaster sanded according to standord specifications in stondord thickness, provides o full hour fire rating for wood stud partitions when applied on gypsum Rocklath (perforated) or metal lath. Gypsum plastering hos long served os o real fire protection for frame buildings. FINISHING MATERIALS GYPSITE Gypsite is an eroded form of gypsum, containing small amounts of clay or similar erosion products. Quarried like gypsum, it is the source of the "Gypsite" or "Dark" plasters of the Southwest. Base coots and finishes mode of Gypsite vary in color from red dish yellow through pink shades to almost white. Gypsite plasters ore fully occeprabie for the best work but corry slightly less sono for equal strength ond hardness. Finishing materials are cvoilable "ready-mixed" or finishing lime and gouging plaster moy be job mixed to produce any type of finish from the hard, smooth trowel finish through sand float fin ishes in various degrees of surface sanding to the deep texture surfaces in white or color obtainable with Oriental Interior Finishes. FINISHING LIMES Good plastering involves good lath ond three coats of properly specified piaster. The scratch or first coat is followed by the brown or second--straightening coat--which brings the face of the wall or ceiling to its final position. The brown coo; moy carry increased sand--3 parrs to I (by weight) without loss of srrength or fireproofness. The final finish coat is hard, dense, thin and self-decorating, or can be decorated with Texolite (see page seventy-two) when dry without danger of difficulty from damp ness or lime in me finish coat. Finishing limes ore manufactured in three types and from two sources of row materials. Raw or quicklime usually requires core ful ond longer sooking to secure comolete hydration. Hydrated lime has been fully or partially hydrated before shipment--it soaks quickly into a useful putty. Pressure hydration (a new process) permits prccncally compiete hydration of all of the oxides in limes containing magnesium. In older hydration meth ods, the mognesium oxide did not hydrate during the mill hydra tion process but hydrated slowly on the job, occasionally producing difficulty due to the expansion which followed. With USG pressure hydration, over 92% of the lime is fully hydrated. Finishing limes are produced both from high calcium deposits of limestone, containing at least 93% of coicium carbonate, and from dolomite iimesrone. containing additions of not over 45% of magnesium carboncte. " united states gypsum company FINISHING LIMES (Continued) COVERAGE The choice between quicklime C'-d hvdrated lime, made from dolomite or high calcium stone, should be governed lorgely bv the local practices of plasterers in the vicinity in which a building is to be built. All types will produce accept able finishes in the honas of properly experienced mechanics. GAUGING PLASTERS The covering capacity of USG plasters is as great for each type of material as it i_ possible to obtain. The area of wall which can be produced by a given quantity of plaster varies with the following factors: The mechanic, the thickness of the wall, the kind and trueness of the surface to be plastered, the size and number of keys in the lath, the quality of the sond, the amount of sand used. etc. The covering capacities given in the table for each variety of plaster are based on average conditions and are quite conservative. Gauging Plasters are made solely for admixture to lime putty to secure hard trowel finishes. They lend greoter strength and density to finish plaster and ore ground to the correct particle size for quick assimilation and even dispersion through the putty that must be accomplished if a prime finish is to result. Available in white (at slightly higher prices in some locali ties) or light shades local to producing mill in either quick set or slow set types. KEENE'S CEMENT Keene's Cement is a very hard, slow setting, dense cement, made from gypsum rock of great purity and whiteness, found at only a few places in the United Stares. Unlike other hydraulic cements, Keene's Cement may be retempered. Its slow setting property permits scoring the plaster finish to create masonry joints in the surface. Plaster finishes made with fine Keene's Cement are stone-like in character and appearance. They moy be polished to a gloss as high as that given morble. Keene's Cement is an excellent material to use in the production of colored interior finishes and for imi tations of Travertine and Caenstone. By variations in grind ing and mill treatment it has been possible to produce severol special types of Keene's Cement, particularly adapted for special purposes. ARIDIZE* MOULDING PLASTER Aridize Moulding Plaster may be used for both "run" moulds or cast ornament. Particularly smooth working and of uni form setting quality, Aridize Moulding Plaster is ground much finer than other similar products, assuring more thorough solution and finer surface of the finished work. Its cooler working and slower setting qualities account for low expan sion and the absence of warped moulds. Slow generation of heat in setting protects gelatin or glue moulds from quick deterioration. Slow setting gives time for blending and work ing out entrapped air bubbles and for working the plaster into angles and corners of moulds. Even when green, moulds of Aridize have great strength. Breakage in handling ond manipuiation in the moulding and costing stages is reduced. Aridize Moulding Plaster is sold under the following trade names in different localities: Red Top (local color), Red Top No. t (white), Red Top Kings Diamond (white). Golden Seal (white). BLOCKSET CEMENT Type Purpose | Brand Type No. Standard Keene's Cement . Casting Keene's J Used with small amounts j Red Top j of lime putty for the pro- ! Keene's I duction of hard, white | Cement i finishes. 1 i I For costing applied oma- ( Red Top ment; sets in about 2 ! Casting hours. | Keene's K-t K-2 Blockset Cement is specially designed for preparing mortar for setting interior partitions of clay tile or gypsum tile. Blockset Cement sanded with three parts of sand by weight to one part cement on the job provides a mortar with definite set, fine bedding qualities, and amply strong for any non-bearing partition work at a low price. Its use speeds constructions, maintains the high quality of fire protection of Pyrobar Gypsum Tile (see pages 54 and 55) and should be the mortar reauired in every specification involving the use of clay or gypsum partitions and fireproofing. Scogliola For imitation marble slabs and columns in color and veining by the Scogliola process. Red Top Scogliola Keene's K-3 SABINITE* ACOUSTICAL PLASTER Quick Troweling For gauging lime putty to produce a quick setting Keene's plaster finish. The gauging will set in about 2 hours. Red Top Quick T rowel ing Keene's K-4 One ton used neat according to specifications will cover cbout 400 to 500 square yards. `Reg. Trade Mark Sabinite Acoustical Plaster substitutes a sound-absorbent wall or ceiling finish for regular sound-repellent plaster finishes. Available in white, ecru, buff, ivory and cream. In three types: Sabinite 38 for damp ploces (swimming pools, etc.) ; Sabinite F, a general purpose floot finish that also may be troweled: Sabinite M, a trowel finish not quite as smooth as regular finishing plaster which also mav be floated. See pages 88 one 89 for acoustical data. ' 0 for acoustical data. 40 YEARS OF PROGRESS THROUGH RESEARCH BB012 2018 A USG PLASTER FOR EVERY BUILDING PURPOSE FOR INTERIOR USE ONLY BASE COAT PLASTERS Tre Near Gypsum Plaster (Also called: Cemenr. Hardwall. Patent, Rock. etc., in various parts of the counrryl Sanded Gypsum Plaster (Also called Prepared) Wood Fiber Gypsum Plaster (Also called Puio) 8ondcrete Piaster \1 - j U*,d For | S*"d ' Adv*nt* Fibered with manila. ' Scratch (1st) and brown (2nd) coats sisal, goat hair, mixed of plastering on any lath or base of or straight. open- or closed type except concrete. Not fibered. All scratch (1st) coats on closed fafh: Rockiath. Pyrobar. insulation board, etc. and brown (2nd) coats. Extra fibered. 5cratch coats on metal and wire lath. The fiber prevents excessively heavy keys in lath of these types. Added at 10b. Most used piaster. Strong, rug-ea st*/ See pg.35.Clause 5a. , blized set and auiCk-Orymg. fire-proof for specifications and | Economical where good sand is available quantifies ' Maximum coverage per ton. Umforr Good sand in orooer : se,,,n8 ,,me- Ava.IaDle *nYwnere. Quantity is essential for good plastering. Use sand as specified m A.S.T.M, Soecifica- tions, page 39. ! Regular. Masonry. Sanded Wood Fiber. Scratch (1st) and brown (2nd) coats on all bases except masonry. Scratch (1st) and brown (2nd) coats on brick, tile. Pyrooar. Not over concrete. Scratch (1st) and brown (2nd) coats on lath only. See "Wood Fiber*' for advantages. Mill mixed. Selected dry sand tnoroughly mixed in {. Add no sand at job. ; mill. Recommended for use wnere goc See pg. 35. Clause 5b, for specification. sanding. Avoids winter troubles wn frozen sand. Assures correct sanding grade and Quantity. Scratch (1st) and brown (2nd) coats on all bases except masonry. Mill mixed. Shreds of selected wood fiber replace sand. Add water only. See pg. 35. Clause 5c. for specification. All advantages of sanded plaster (apove plus maximum Quantity of gypsum p yard of wall. Hence, superior fireproc mg, strength, toughness, and msufatic Withstands vibration better. Holds na and screws better -- the choice of most gypsurmsts for Their own homes. Bonds over monolithic concrete. Add water only. See pg 36 Clause 11 d forspecificst(0n' * Highly cementitious, low volume chant ' material designee to stick to clean, dr i roughened concrete. 8rown coat of ne , piaster sanded not over 3 to 1 may t l used over Bonderete on ceilings as w( i as sidewalls, See directions on ba I Should be cross-raked to receive firu: coat. For interior use only. FINISHING PLASTERS PREPARED FINISHING PLASTERS Type Prepared Trowel Finish White Gray (local) Slate Prepared Float Finish White Light Gray. Gray Oriental Colored Finish White and Twelve Shades See page 40. Sabmite Acoustical Piaster Three types, white and four shades j Used For [Hard smooth finish for enamels, paint, waHipaper. May be left undecorated. (For stairway and kitchen dados, low cost black| boards, etc. Needs no paint but may be painted. Floated Sand Finish for paints (Texolite). Nor for wallpaper. Degree of sand texture can be varied by type of float used. iSee page 36. Clause 12bl. For textured or floated finish coats which are i self-decorating. Trowel finish made to order I only, j | Acoustical correction I [ i Sand Add water oniy Add water only Add water only Add water only Advantages Mill mixec^--w.ll not streak, contains no lime "poo" or saponify paint. Positive set. Does not snhn No alkali to bum workmen. Bear bond to gypsu plasters. May be polished--produces dense, hard, a most grainless finish. Can be decorated wnen dry. Same as above except plaster produces a matte sand finish under the plasterer's float. Excellent wi and ceiling treatment where flat paints are to t used. Can pe decorated when dry. Carefully graded and sized aggregates plus select* pigments: produces a stone-like floated iob or ar variety of texture in white or color. Mill mixing ar control of color provides full assurance against streai mg and color differences. Exceptionally hard, durafc finish. May be washed. Inexpensive, fireproof, amply sound-absoroent JOB-MIXED FINISHING PLASTERS TROWEL FINISHES---Many plasterers prefer to mix their own finishes "on the job." The smooth stone-like trowel finish, variously known is: White Coat, Skim Coat. Gauged Finish, Lime-Putty Finish and more commonly as Lime-Putty--Afaster-of-Paris Finish is made by gauging lime with gauging plaster in the ratio of I part gauging piaster to two parts hydrat ed lime by weight. (See page 36, Clause 12a for specification!. Lower amounts of gauging plaster may result in weak, slow-setting finishes that will craze crack. The practice of sifting the fiber from neat wall Diasrer using the piaster to gauge lime for finishing is no longer neces sary. Specially made gauging plasters are avaiiaoie everywhere, which serve better and cost no more. Available USG Lime and Gauging Plasters are listed below. LIMES AND GAUGING PLASTERS FOR JOB-MIXED FINISHES Limes Brand Type No. Type Color Relative Cost f Famems Chesire* (High Calcium; Blue Label Chesire (Kign Calcium; Plastimax* High Calcium Red Top* Dolomite Ivory- Dolomite Crand Prize0 Dolomite Sampson* Hydrate Dolomite USG* Hydrated Lime Dolomite Slue Valley* Dolomite LI LI L3 Li L3 L3 LB L5 L5 Quick lime Quick lime Hydrated Hydrated Hydrated Hvdrated Hydrated Pressure Hydrated Pressure Hydrated White White White White White White White White White It 11 lit lit lit lit lit fit lit Coverages per fon, when mixed with proper proportions of gauging piaster: Quick Lime. 1000 sq. yds. Hydrated Lime. 500-700 so. yds. Pressure Hvdrated. 500-700 sc. yds. Large putty production. High Strength. Large putty production. Hign Strength. Stores better. No poo dangers. Fine Hydrated Finishing Lime. Fine Hydrated Fimsning Lime. Fine Hydrated Finishing Lime. Fine Hydrated Finishing Lime. ij Over 92% Hydration. A super lime, &1 ' mixing, easy working, economical. 6T02 ziose piaster das* D3C atn *;'<ijrn iath lath -r tile i-.resar Gypsum tile l Ground I Six* 3i" Plaster Thickness Over Lath Coverage Per Ton-- Raady tor Finish Coat 180-210 sq. vds. 225-240 sq. yds. 105-135 sq. vos. 225-240 so. yds. 165-200 :q. vds. 23 5-255 sq. yds. Type No. (See Page 51 Ti Add brand and fibertng vote 2 parrs of- sand, by weight, to one of piaster were used in all of the .____- svi-ant tHrtc* 1-1w--r Krirkf filn AnH PurnhAr u/Kit-H paoiuro 3 rrt I Rockiafh ?>rQoar Gypsum tile Metal lath insulation lath 34" >1/,"- 34" Vb" %" r 60-70 sq. yds. yV 75-80 sq. yds. 75-80 sq. yds. 35-45 sq. yds. w- 45-55 sq. yds. IV 65-70 sq. yds. i B2 B2M for masonry B2W for Sanded Wood Fiber. Add brands. '/V 90-100 sq. yds. ; B3 V 115-120 sq. yds. /j; 55- 65 sq. yds. Add brand vv 115-120 sq. yos. For application direct to oil-free roughened conCrete surface only. H" 90 to 120 sq. yds. de- B4 pending on roughness of surface. Relative Cost* USG Brands Usad Locally tT Economical. Standard construc tion on same lath Red Top* Red Top Big Four* Red Top Niagara Peerless Red Top Ivory* generally snows lower costs than Red Top King's Windsor* Red Top Eldorado* Sanded or Wood Fiber. : iCvosite. see Pg. 30) Red Top Cram re | Red Top Hardwall I Red Too Overland _ Nephi Hardwall lit Cost slightly more than `'Neat" in place on identical lath. Red Tod* Red Too Brown Mortar Red Tod Lath Mortar Red Top Niagara Peerless Red Top Ivory* . Red Top King's Windsor* Red Top Big Four* USC Niagara Peerless lilt Costs more in place than "Neat" or Sanded on same lath. IVt Costs about the same as Wood Fiber on Rockiath. Red Top* Red Top Ivory* Red Top Big Four* Red Too Eldorado* (Gypsite. see pg. 30) Red Top Overland* Red Top King's Windsor* Red Top Niagara Peerless Ivory*_________ Bondcrete* PACKAGING: Base Coat Plasters and Prepared Finishes in 100-lb. paper bap. ' Gouging Plasters in 100-lb. paper bags and 230- or 300-lb. (net) bbls. Coverage Per i Type No. j Ton | (See Page 3>l Relative Costt I:C-*0Q sq. yds. : FI < Add brand. 1 i 1t White finishes are slightly higher. 2:2-275 sq. yds. | F2 | Add brand. lit White finishes are slightly higher. 252-3CO sq. yds. ; F3 l. srvmg with , Specify ceprn of texture | color 1 l ` 22 sg. vds. -n. thick ; F4 * j Specify type j and color. lilt ivt j USG Brands Red Top* and Red Top Universal White Trowel Finish Red Top Adamant White Trowel Finish Red Top Adamant Slate Trowel Finish Red Top Adamant IXXX Trowel Finish Red Top Badger* Cray Trowel Finish Red Top Adamant Gray Sand Float Finish Red Tod Adamant White >Sand Float Finish Red Top Sand Float Finish (Light Cray) Red Top White Silico Sand Float Finish Red Top Gray Silico Sand Float Finish Oriental* Interior Colored Finish Three types. See pages 86 and 89. NOTES t RELATIVE COSTS--Higher figures in this column rep resent higher prooable in stalled costs, lower figures --lower costs. They repre sent relative nor proportion ate differences. Variations in pnee. wages and local practices make accuracy im possible. Architects should get accurate figures from local contractors before drawing final specifications. The "Relative Costs" given here are offered as an aid for preliminary selection only and should not be used in any calculation or estimate. PACKAGING: Quicklimes in 50, 80, 90 or 100-lb. paper bags; 180 or 280-lb. (net) bbls. Hydrated Limes in 40 or 50-lb. paper bags and bulk. FLOAT FINISHES--float finishes are made on the job by adding sand of fleeted color and size to unfibered neat piaster. (See page 36. Clause 5e>. When a white float is desired, the Lime-Sand-Keene's Finish of page 36. Clause 8f is recommended. KEENE'S CEMENT FINISHES--Several very hard water-resistant finishes may be prepared "on the job" with Keene's Cement and Fine White Fin ishing Lime (see page 31 and page 35. Clause 8c). providing maximum physical perfection in plaster finishes. They set slowly, may be scored to resemble ceramic tile or masonry. The more Keene's in the mixture, the haroer and denser the finish. NOTE: For Mason's Limes see USG pages in Section 4. Ga"C;n, Piasters Brand Relative . Type No. Set Color Costt Too Siow Set I=c Ouick Set _ - 3o Champion* 7 50 'OB Star' cDhi Slow Set 3>ue Valley' aiue Valley Local ";ve Valley Quick Set Blue Valley Local Quick Set cl-S l Diamond* --7oo Superfine G2 Slow Local G4 Quick Local G8 Quick White G6 Slow White G2 Slow Local G6 Slow White G2 Slow Local G8 Quick White G4 Quick Local G8 Quick White G6 Slow White '-overage } j0n mjxe<3 w,f^ 2 tons (dry) Hydrated Lime covers from 1000 to 1400 sq. yds. 1t 1t lit' II t 1t lit 1+ lit 1+ II t 11 + Advantages Low cost, high strength, slow setting. Low cost, high strength, Quick setting. Fine, high purity, white. Fine, high purity, white. Low cost, high strength. High purity, white gauging plaster. Low cost, high strength. High purity, white. Low cost, high strength. High purity, white. High purity, white. BB012 2020 UaS AMERICAN STANDARD SPECIFICATIONS for Gypsum Including Requirements for Lathing and Furring 'Reprinted by ptiwiuioii of A. S.A..A. I.A. IA.S.T. M. Copyright 1939 by Am. Inst. Archt's and Am.iSoc'y tor Test'g MVIs. A fully competent specification is a mojor essential for good plaster work. The American Standard Specifications, which follow, ore recommended. We suggest their inclusion, in full or by reference, in all building specifications where plaster ing and lathing is involved. They ore printed here through the courtesy and permis sion of the American Standards Association and the spon soring organizations: The American Institute of Architects and the American Society for Testing Moterials. The per sonnel of the committee which produced them is sufficient evidence of their merit. PERSONNEL OF SECTIONAL COMMITTEE ON SPECIFICATIONS FOR PLASTERING A.S.A. Project A 42 SPONSORS: The American Institute of Architects Americon Society for Testing Materials CHAIRMAN W. R. MacCornack Massachusetts Inst, of Technology, Cambridge, Mass. VICE-CHAIRMAN: Theodore Irving Coe American Inst, of Architects, 1741 New York Avenue, Washington, D. C. SECRETARY: J. W. McBurney National 8ureau of Standards, Washington, 0. C. American Concrete Institute: Pearson, J. C. American Forest Products Industries, Inc.: Kimbell, R. G. American Institute of Architects: Coe, Theodore I.; MacCornack, W. R. American Society far Testing Materials: Pearson, J. C.; Schweim, H. J.; Walker, Stanton; Welch, F. C.; Wells, L. S. Building Trades Employers' Association of New York: Pearson, F. E. Contracting Plasterers' International Association: McDonnell, Edward Federal Works Agency, Public Buildings Administration: Waples, H. H. Finishing Lime Association of Ohio: Johnson, L. E. Gypsum Association: Jones, H. Z. Insulation Board Institute: Miller, R. T. Metal Lath Manufacturers' Association: Tuscany, Arthur National Association of Building Owners and Managers: Cheyney, C. Robert National Association Real Estate Boards: Bohnen, Arthur National Lime Association Stauffer, S. W. National Sand and Gravel Association: Walker, Stanton Operative Plasterers' and Cement Finishers' International Association: O'Reilly, J. F. Portland Cement Association: Kaiser, W. G. U. S. Housing Authority: Howes, B. A.; Votet, Oscar (Alt.) Wood, Wire and Metal Lathers' International Union: McSoriey, W. J. Members-at-Large: Lynas, A. O.; Lynch, W. J.; McBurney, J. W.; McNulty, J. D.; Poyne, W. A. GENERAL NOTES ON PLASTERING To obtain the best results it is essential that all operations con nected with plastering and lathing shall be in accordance with the best practices of the industry. Attention is specifically directed to the following: Tools used for mixing and applying piaster must be kept clean. Dirty tools accelerate the "set" of plaster. Water must be clean. Water containing salt or alum, or water in which tools have been washed, accelerates the "set." Water from stagnant pools and wells frequently contains orgonic or vegetable matter which may retard the "set." Sand is not a cementitious material. It is, however, a very important ingredient. Extreme core must be exercised in its selection. Fine sand should never be used. The finer the sand the larger the total surface area in relation to the volume of particles and the greater the amount of gypsum required to coat eoch groin. Sand used in plaster must be well graded from fine to coarse. Oversanding weakens the plaster proportionately, and usually accelerates the "set." Fine sond. having rounded particles, uniform in size (fre quently colled "quicksand") must not be used. It can be easily detected since it settles in the bottom of the mixing box, gives the mixture a watery appearance and causes it to work "short," and produces a weak plaster. In the accompanying specifications for gypsum plastering all formulas for plaster mixes are based on the use of sand con forming to the requirements of the Standard Specifications for Sand for Use in Plaster IA.S.T.M. Designation: C35-39) of the American Society for Testing Materials.1 Drying--A portion of the water used for mixing plaster is necessory for the chemical reaction which sets and hardens plaster. Therefore, plaster must not be permitted to dry out before setting has taken place. It must be protected from blasts of wind and from drying unevenly or too rapidly. If glazed sash are not in place, and it is necessary to enclose the building, exterior openings of the building shall be screened with cheese cloth, or similar material. In cold, damp, or rainy weather, properly regulated heat must be provided, but precautions must be taken against too rapid drying before set has occurred. As soon as the plaster has set, free circulation of air shall be proviOed to avoid sweat-outs. After the plaster has set, heating shall be continued to insure as rapid drying as possible. Plaster must not be allowed to freeze before it has set. Alternate freezing and thawing must be avoided. Bituminous Coatings--Because bituminous compounds do not provide ideal bases for plaster, the applying of plaster to mosonry or concrete which has been coated with such compounds should be discouraged. Plastering on Monolithic Concrete Surfaces, regardless of the type of plaster used, requires care and the taking of certain precautionary measures. The use of dressed (smooth) lumber, metal, and plywood forms, oiling or greasing of same, and the vibrating of concrete produces concrete surfaces which ore so smooth that mechanical bond necessary for plaster is absent. The adhesion of plaster to concrete depends largely upon the condition of the concrete surfoces at the time of application of the plaster, type of plaster used, and workmanship employed. Concrete surfaces which are to be plastered should be rough. The desired character of surface may be procured by using rough forms which have not been oiled or greased, or by hacking or bush-hammering the surface to be plastered after the forms are removed ond before the concrete has become too hard, or bv applving a dash-coat of portland-cement grout. 1 See Note Page 39. M o* MTf w * M r UNITED STATES fGYPSUM COMPAfJY STANDARD SPECIFICATIONS FOR GYPSUM PLASTERINGChapter I NOTE--These specifications are intended to describe minimum requirements. The use of equivalents, or better, is permissible. GENERAL PROVISIONS For two- and three-coat work on masonry surfaces (except mon 1. iaj The work includes all labor, materials, services, equip olithic concrete), gypsum wood-fiber piasrer shall be mixed in the ment, and scaffolding required to complete the lathing and proportions of I part of plaster to 1 part of sond, by weight. plastering of the project in accordance with the drawings ana specifications. HAND MIXING lb) Scaffolding shall be constructed and maintained in strict 6. Material which has partially set shall not be retempered or conformity with applicable lows and ordinances, and so as not to used. Frozen, caked, or lumpy material shall not be used. The interfere with and obstruct the work of others. mixing boxes shall be watertight and thoroughly cleaned of all set Icl The work shall be properly coordinated with the work of or haraened material. If mixing is done in the building, waterproof other trades. protection shall be provided under the mixing boxes and water DESCRIPTION OF TERMS 2. ia) The term "attached" or "furred" as applied to ceiling construction, means that the furring members are attached directly to the structural members of the building. (b) The term "suspended," as applied to ceiling construction, means that the furring members are suspended below the struc tural members of the building. (e) The term "main runners," as applied to metal construction, barrels. Tools shall be cleaned after mixing each batch. la) Gypsum Neot Plaster--Sand shall be added at the job. Plaster and sand shall be mixed dry to a uniform color at one end of the box, hoed into water at the other end, and thoroughly mixed to the proper consistency. lb) Gypsum Ready-Sanded Plaster--Sond shall not be added. Plaster shall be placed at one end of the box, hoed into water at the other end, and thoroughly mixed to the proper consistency. means the runners which are attached to or suspended from con MECHANICAL MIXING struction above. tdl The term "cross furring," as applied to metal construction, meons the furring members which are attached at right angles to the underside of main runners or other structural supports. 7. Material which has partially set shall not be retempered or used. Frozen, caked, or lumpy material shall not be used. The mixer shall be cleaned of oil set or hardened material before ma terials for a new batch ore loaded. Each batch shall be mixed SCOPE OF WORK 3. (o) The following worx shall be included: separately. la) Gypsum Neat Plaster--Sand shall be added at the job. The following cycle of operations shall be followed while the mixer is in continuous operation: lb) The following work shall not be included: Put in the approximate amount of water, Add approximately half the amount of sond, Add all the plaster. MATERIALS 4. lo) The materials shall conform to the following specifica tions of the American Society for Testing Materials, or ony sub sequent revisions thereof: A.S.T.M. MATERIALS DESIGNATIONS SAND FOR USE IN PLASTER1.............................................................. C 35 - 39 . luc. I LiMt j Hvdrcted Lime for Structural Purposes1........................C 6-31 Quicklime for Structural Purposes'................................C S - 26 {Ready-sanded ....................................1 c 28-30 Add remainder of the sand, Mix to the proper consistency, adding water if necessary, and Dump the entire batch and use. NOTE--When the mixer is used intermittently, small amounts of sond and water shall be added after dumping each batch and the mixer run for a few minutes. After dumDing the sand and water, the mixer will be clean and ready for o new barch. (b) Gypsum Ready-Sanded Plaster--Sond shall not be added. The following cycle of operations shall be followed while the mixer is in continuous operation: Put in the approximate amount of water. Add the piaster, Calcined gypsum for finishing coa., MOLDING PLASTER*...............................................................................C 59 - 30 KEENE'S CEMENT..................................................................................C 61 - 30 WATER. . . .sholi be clean, fresh, suitable for domestic consumption, and free from such omounrs of mineral and organic suosrances The reouireasmewnotsuldfoorffeelcatsttihceityseptreosfcrrihbeedpiainsteSrt.ondcrd Specific'ations C 6 - 31 shall apply to hydrated lime and quicklime used for lime outTy in finishes, and ail lime used shall be suitable for base and finish coot plastering. (b) All manufactured materials shall be delivered in the orig inal packages, containers, or bundles bearing the name of the manufacturer and the brand. Id Plaster and all cementitious materials shall be kept dry Mix to the proper consistency, adding water or plaster, if necessary, and Dump the entire batch and use. NOTE--When the mixer is used intermittently, a small amount of water shall be added after dumDing each batch and the mixer run for a few minutes. After dumping rhe warer, rhe mixer will be clean and ready for a new barch. lc) Lime Putty--Quicklime sholl be thoroughly slaked, allowed to cool and then let stand not less than 24 hr. Hydrated lime shall be soaked at least 24 hr. All lime putty shall be kept moist until used and shall be screened through a No. 10 sieve before being used. until ready to be used; they shall be kept off the ground, under FINISH COAT PROPORTIONS cover, and away from sweating walls and other damp surfaces. Metal goods shall be protected agoinst rusting. 8. (a) Gypsum Lime-Putty Trowel Finish shall be mixed in the proportions of 3 parts of lime putty to I part of gaging plaster, by BASE COAT PROPORTIONS 5. Base coat plaster shall be proportioned as follows: (a) Gypsum Neat Plaster: NOTE--The Term "near" as applied to gypsum plaster means that the material, as shipped by the manufacturer, aoes nor contoin sand. Sond must be oaoed or the job. Near plaster may be fibered or unfibered. Scratch (first) coat on oil types of lath snoll be mixed in the proportions of 1 part of gypsum neat plaster to not more than 2 volume. lb) Prepared Gypsum Trowel Finish shall be mixed with water to the proper consistency in accordance with the manufacturer's directions. (c) Keene's Cement Finish: MEDIUM HARD FINISH shall be mixed in the proportions of 1 part of lime putty to 1 Vz ports of Keene's cement, by volume. parts of sand, by weight. Base (first) coat on masonry surfaces (except monolithic con crete) and brown (second) coat in all three-coat work shall be mixed in the proportions of 1 port of gypsum neat plaster to not more than 3 parts of sand, by weight. lb) Gypsum Ready-Sanded Plaster: Gypsum ready-sanded plaster shall be used without the addi tion of sand. For scratch (first) coat on all types of lath, scratch-coat gypsum ready-sanded plaster shall be used. For application to masonry surfaces (except monolithic concrete) NOTE--If mixed mechonicolly, the prooortions sholl be 2 cu. ft. of lime purty, 1.5 cu. ft. of Keene's cement, and 10 lb. of fine white, washed sand, mixed as follows: Put in approximately 24 at. of water, Add iime, sand, and Keene's cement, Mix for not less than I 5 min. nor more than 20 min., ond Dump entire batch and use. HARD FINISH shall be mixed in the proportions of 1 part of lime purty to 3 parts of Keene's cement, by volume. (d) Prepared Gypsum Send Float Finish shall be mixed with water to the proper consistency in accordance with the manufacturer's directions. ond for brown (second) coat in all three-coot work, either scratch- coot or brown-coat gypsum reody-sanded plaster may be used. lc) Gypsum Wood-Fiber Plaster: For two- and three-coat work on all types of lath, gypsum wood-fiber piasrer shall be used without the addition of sand. 1 The A.S.T.M. Standard Specifications for Sand for Use in Plaster (C 35 - 39) ore appended, see p. 39. s These standard specifications of the American Society for Testing Ma terials ore puolished in tne 1936 Book of A.S.T.M. Standards, Port II, pp. 10, 21, 89, 364, and 255, respectively. BB012 2022 40 YEARS OF PROGRESS THROUGH RESEARCH: ii STANDARD SPECIFICATIONS Continued 36 (el Gypsum Sand Float Finish shall be mixed in the proportions of 1 port of gypsum neat unhbered piaster to not more than 2 parts of sand, by weight. Sana shall pass c No. 12, 16, or 20 sieve, depending on the texture of the surrace desired. if) Keene's Cement--Lime Sand Float Finish shall be mixed in the proportions of 2 oarts of lime putty, 1 Vi parts of Keene's cement, and 4 Zi parrs of sand, by volume. fg) Colored Finishes for Float and Texture Work shall be mixed with water to the proper consistency in accordance with the manu facturer's directions. THICKNESS OF PLASTER 9. (a) Grounds shall be installed so as to provide for the following thicknesses of plaster, from face of plaster base to finished plaster surfaces; LATH THICKNESS OF PLASTER f Metol, Wire Loth, and Wire { Fabric ..........................................................................% in., mm. |_ All other types.............................................................. >/2 ,n*/ min- UNIT MASONRY AND CONCRETE WALLS.......................... % in., min. MONOLITHIC CONCRETE CEILINGS....................................! ! I"-' TMnJ NOTE.--If monolithic concrete ceiling surfoces require more than 2-g in. of piaster to produce desired lines or surfaces, metal lath or wire lath shall be attoched thereto. In extreme coses metal furring may be required. (bl Wood Grounds will be furnished and installed by others. (e) Metal Grounds shall be furnished ond installed by the plaster ing contractor. PREPARATIONS FOR PLASTERING 10. la) Temperature and Ventilation.--Plaster shall not be applied to surfoces which contain frost. A minimum temperature of 40 F. shall be maintained in the building for an adequate period prior to the application of the plaster, while plastering is being done, and until it is completely dry. If the maintaining of this minimum tem perature requires the furnishing of heat, it shall be provided by . . . .'................Salamanders shall nor be used. Adequate, properly regulated ventilation shall be provided. (bl Masonry Surfaces on which suction must be reduced shall be properly wet down immediately before the plaster is applied. NOTE.--This is particularly important if wood-fiber plaster is used. (c) Wood Lath shall be thoroughly wet down from 12 to 24 hr., ond In very dry weather again from 1 to 3 hr., before the plaster is applied. Id) Gypsum and Fiber Insulation Lath shall not be wet down. . (el Monolithic Concrete Surfaces shall be cleaned of all dust, loose porticles, and other foreign matter. Laitance and efflore scence shall be removed by washing first with a 10 per cent solu tion of commercial muriatic acid ond water and then with clean water to remove all traces of acid. Grease and oil shall be com pletely removed. Concrete surfaces shall hove sufficient roughness to provide proper bond; if necessary the surface sholl be evenly wetted, nor saturated, to provide proper suction. If surfaces ore not rough, they shall be hocked or bush-hammered, or a dash-coat of port land cement grout, composed of 1 part of cement and 1 Vi parts of fine sand mixed to a mushy consistency shall be applied. The Portland cement grout shall be forcibly dashed on the concrete surface, using a stiff fiber brush, with a whipping motion. This coat shall be kept damp for at least two days immediately follow ing its application and then allowed to dry. Before application of ploster, the surface shall be evenly dampened if necessary to provide proper suction. (f) Surfaces shall be carefully examined before the plaster is applied thereto, and the proper authorities notified of any and all unsatisfactory conditions. Application of the plaster sholl not then proceed until such unsatisfactory conditions hove been satis factorily remedied or adjusted. (g) Metal Grounds and other accessories such as comer beads, screeds, picture molds, etc., sholl be carefully examined to see that they are straight, curved, plumb, level, squore or true to the required ongles, as the case may require, before the plaster is applied. APPLICATION OF BASE COATS 11. (a) Two-Coot Work.--Base (first) coot shall be applied with sufficient material and pressure to form good full keys on wood lath, ond good bond on gypsum or fiber insulation loth or masonry, as the case may be, and to cover well, and then be doubled back to bring the plaster out to grounds, straightened to true surfoce with rod and darby and left rough, ready to receive the finish (second) coat. (bl Three-Coat Work.--Scratch (first) coat shall be applied with sufficient material and pressure to form good full keys on wood and metol lath, wire lath, and wire fcbric, and good bond on gvpsum or fiber insulation lorn or masonry, as the case moy be, and to cover well, and tnen be scratcned to rough surface. Brown (second) coat shall be applied, after the scratch (first) coot has set firm and hard, brougnr our to grounds and straight ened to a true surface with rod and darby, and left rough, ready to receive the finish (third) coat. NOTE.--For best results, plaster screeds should be applied to the scratcn coar prior to the application or tne brown coat. icl Solid Plaster Partitions shall be not less than 2 in. in thickness and sholl have scratch, back-up, brown, and finish coats. Scratch coat shall be applied on the lath side with sufficient materiol and pressure to form good keys and to cover well, and then be scratched to a rough surfoce. Temporary brocing of studs shall be furnished on the channel or rib side of the partition and maintained until the scratch coat on the lath side has set. Back-up coat sholl be applied on the channel or rib side, after the scratch coat on the loth side has set firm and hard, in not less than two operations, the first to odequotely cover the keys of the scratch coat, and the other coat or coats to bring the plaster out to grounds. It shall then be straightened to true sur face with rod and darby and left rough, ready to receive the finish coar. Brown coat on the lath side shall be applied over the scratch coat, after the back-up coat on the channel or rib siae has set, and shall be rodded, darbied, and left rough, os specified for the back-up coat. Plaster shall exrend to the floor. All spaces between grounds sholl be filled. Hollow metol bucks shall be filled solid. Wherever possible, plastering shall be commenced at the bottom of the partitions. (d) Plastering on Monolithic Concrete.--Plaster shall be specially prepared bond plaster for use on concrete. Sand shall not be added. Surfaces of wolls and columns sholl have a scratch coat of bond plaster, followed by a brown coat of gypsum plaster (in the propor tions of 1 port of gypsum neot plaster to not more than 3 ports of sond, by weight) trowelled into the scratch coat before it has set. The brown coat shall be brought out to grounds, straightened to a true surface with rod and darby, and left rough, ready to receive the finish coat. Surfaces of ceilings shall have a coat of bond plaster scratched in thoroughly, doubled back, and filled out to a true, even surfoce and left rough, ready to receive the finish coat. APPLICATION OF FINISHES 12. (a) Trowel Finishes.--In the application of trowel finishes the use of excessive water shall be avoided: Gypsum Lime-Putty Trowel Finish shall be applied over o base coat which has set and is surface-dry, scratched in thoroughly, laid on well, doubled back and filled out to a true, even surface. The thickness shall be from 1/16 to Ve in. The finish shall be allowed to draw a few minutes and then it shall be well troweled with water to a smooth finish, free from cat faces and other blemishes. Prepored Gypsum Trowel Finish shall be applied in accordance with the manufacturer's directions. Keene's Cement Finish shall be applied over a thoroughly set base coot which is nearly, but not quite dry, scratched in thoroughly, laid on well, doubled back and filled out to a true, even surface. The thickness shall be from 1/16 to Ve in., unless the finish coat is marked off or jointed, in which cose the thickness may be increased as required by the depth of marking or jointing. The finish shall be allowed to draw a few minutes and then it shall be well trowelled with water to a smooth finish, free from cat faces and other blemishes. NOTE.--If the base coat has dried out, it shall be sprayed with water, bur nor soaked, before the finishing coot is applied. (b) Float Finishes.--The following float finishes sholl be applied over a thoroughly set base coat which is nearly but not quite dry, laid on with a trowel to on even surface, and then floated (with wood, corpet, cork, rubber, or other type float, depending on the texture desired) to a true, even surface, free from slick spots and other blemishes: Prepared gypsum sond float finish, Gypsum sand floor finish, and Keene's cement-lime sand float finish. NOTE.--If the base coot hos dried out, it shall be sproyed with water, but not soaked, before the finishing coar is oppiied. . <c) Colored Finishes for Float and Texture Work shall be applied in accordance with the manufacturer's directions. (d! Acoustical and Other Special Purpose Plasters shall be cppiied in aceoracnce with the manufacturer's directions. tsi 03 1 o* --W O' a UNITED STATES GYPSUM COMPANY SPECIFICATIONS FOR LATHING AND FURRING Chapter II NOTE:--These specifications are intended to describe minimum requirements. The use of equivalents, or better, is permissible. For some types of structures it may be aesirable to use metal loth and supporting members heavier than the minima listed in these standard specifications. MATERIALS 13. 'oi Gypsum Lath shall conform to tne Standard Specifications tor Gypsum Lath (A.S.T.M. Designation: C 37 -- 34) of the American Society for Testing Materials,1 or any subsequent re vision thereof. Gypsum lath shall conform to the following dimensional require ments: Thickness.......................................................................................5/IS. H, or Vi in. Width............................................................................................. [6 in. Length............................................................................................32 or 48 in. ibl Wood Lath shall be No. 1 grade, reasonably clear, evenly manufactured, and free from detrimental defects. A few worm holes, smoll pitch pockets, well set or firm knots, not more than Vi in. in diameter and not bunched, and wane not more thon one-third the thickness and one-third the width for one-third the length on one side of the lath, or its equivalent otherwise locoted, when not in combination with any other defect, shall be permitted. Wood lath sholl conform to the following dimensional require ments: MINIMUM Thickness................................................................. it m- Width..................................................................... . I ll in. ) 471*2 in. Length.................................................................. ( 31 >/2 in. MAXIMUM ig in. I 5-8 in. 48 in. 32 in. (cl Fiber Insulation Lath shall be manufactured from wood or other vegetable fiber subjected to such drying temperature as to effect complete destruction of rot-producing fungi. Surfaces sholl be free from cracks, lumps, excessive departure from planeness, or other defects. Fiber insulation lath shall conform to the following dimensional requirements: PERMISSIBLE . DIMENSION VARIATIONS Thickness.....................Vf in., m., and multiples of '/2 in. xtS in. Width.........................16, 18, or 24 in. --V* <n. Length.......................... 48 in. . --V* m. Fiber insulation lath may be either single or multiple ply board. Tne individual plies shall be joined in such manner as to prevent separation under normal use. Fiber insulation lath Vi in. in thickness shall have a trans verse strength lengthwise of not less than 14 lb. and crosswise of not less thon 12 lb. The strength of other thicknesses shall be in direct proportion. The deflection at the specified minimum load (12 lb. or 14 lb.) shall not exceed 0.85 in. and the deflection at the maximum load shall be not less than 0.25 in. Tests to de termine strength and deflection shall be in accordance with the Federal Specification for Insulating Fiber Board (LLL-F-32 la). (d) Metal Lath, Expanded, Ribbed, and Sheet sholl be of steel, coated with rust-inhibitive paint after cutting, or cut from zinc- coated sheets. le) Wire Lath shall be not lighter than No. 19 W. & M. gage wire, 2'/z meshes per inch, coated with zinc or rust-inhibitive puuu. If) V-Stiffened Wire Lath shall be not lighter than No. 20 W. & M. gage wire, 2 Vi meshes per inch, with No. 24 U. S. gage V-rib stiffeners spaced not to exceed 8 in. apart, coated with zinc or rust-inhibitive paint. (gl Paper-Bocked Wire Fabric shall be not lighter than No. 16 W. & M. gage, zinc-coated wire, with not to exceed 2 by 2-in. mesh, with No. 26 U. S. gage V-ribs or No. 1 3 W. & M. goge, zinc-coated wire stiffeners spaced not to exceed 4 in. apart, and aosorptive paper backing securely attached to metal in such a manner as to provide full embedment of at least 1/16 in. of plaster for at least one-half of the total length of the strands and one-holf of the totol weight of the metal. The design snail be such as to provide a mechanicol bond and continuous metallic rein forcement in at least two directions, for plaster. ih) Metal Accessories such as comer beads, base screeds, con cealed picture molds, etc., shall be not lighter than No. 26 U. S. goge steel, zinc coated, with perforated or expanded flanges or clips shaped so os to permit complete embedment in the piaster. <i) Channels shall be hot-rolled or cold-rolled steel, free from rust, of the following minimum weights per thousand lineal feet: SIZE HOT-ROLLED t/i in........................................................................... 300 1b. 1 in......................................................................... 410 lb. I'A in...................................................... 2 m.........................................................................1 260 lb. COLD-ROLLED 276 1b. 332 1b. 350lb. 442 1b. 553 lb. NOTE.--Coating with rust-inhibitive point is an added precautionary measure. LATHING 14. All loth shall be applied with the long dimension at right angles to the supports, except thot furnished in rolls which may be applied with the long dimension parallel to the supports. APPLICATION OF GYPSUM LATH 15 ial Gypsum lath shall be securely nailed to wood supports (spaced not to exceed 1 6 in. on center) at intervals not to exceed 4 in. with No. 13 gage, 1 '/s-in., Vs-in. flat head, blued nails. The noils shall be driven with the under side of the head flush with the face of the lath. (bl Joints between walls and ceilings shall be staggered. Lath shall be applied with the long dimension at right angles to the framing members, with joints broken in each course. Lath shall not be butted tightly together, nor be more than Vi in. apart. lc) Cornerite shall be securely nailed through loth to supports at all interior angles. ld) Gypsum loth sholl be attoched to horizontal or vertical metal supports by means of special clips. (e) Special erection systems, on either wood or metal supports, which afford equal carrying strength may be used, in which event lath shall be erected in accordance with the specifications therefor. NOTE.--On ceilings and other large unbroken areas it is recommended that lath be applied in rectangular herringbone fashion. APPLICATION OF WOOD LATH 16. (a) Wood lath shall be spaced V& in. apart at the edges, Vi in. apart at the ends, and shall be nailed securely at right angles to wood supports (spaced not to exceed 1 6 in. on center) with 3d fine, No. 16 gage blued nails, full driven. (b) Joints shall be broken every seventh lath. (e) Loth shall not run through from one room to another. Id) Cornerite shall be securely nailed through the lath to the supports at all interior angles. APPLICATION OF FIBER INSULATION LATH 17. la) Fiber insulation lath shall be nailed securely to wood supports (spaced not to exceed I 6 in. on center) at intervals of nor more than 4 Vi in., with blued or bright nails of the following sizes: For 1 2-in. loth................. H/e-in. blued fiber-boord noils or 4d box noils. For I-in. larn....................IS/,-in. blued fiber-boord noils or 6d box noils. (b) Nails shall be placed nor less than % in. from the ends and not less than Vi in. from ship-lapped, tongued-and-grooved, or interlocking edges. (c) End joints (exceot interlocking type) shall be approximately 3/16 to Vi m. Ship-lapped, tongued-and-grooved, or interlocking edges shall be fitted to moderate contact. (dl Cornerite shall be securely nailed through the lath to the supports at all interior angles. APPLICATION OF METAL LATH, WIRE LATH AND WIRE FABRIC 18. ia) The weight of metal lath, wire lath, and wire fabric shall conform to the requirements prescribed in Table I. (b) Metal lath (exceot ribbed), wire lath, and wire fabric shall be attached to horizontal wood supports with not less than 6d common nails or 1 Vi-in. roofing noils driven to a penetration of at least 1 in., or 1 Vi-in. No. MW. & M. gage wire staples driven home; and shall be attached to vertical wood supports with not less than 4d common nails or 1-in. roofing nails driven to a penel ration of at least -Vi in., or 1-in. No. 14 W. & M. gage wire staples driven home. The Ve-in. rib lath, stiffened wire lath, and sheet lath snail be attached to horizontal and verticol wood supports with nails or staples % in. longer than required for the aforementioned bases, unless attachments are through the ribs, in which event noils or staples shall be- of such length as to provide ot ieast 1-in. penetration in horizontal wood supports ond Vi-in. penetration in verticol wood supports. Common nails sholl be bent over to engage at least three strands of lath. Other methods of attachment which afford equal carrying strength moy be used. : 1936 Book of A.S.T.M. Standards, Part II, p. 97. BB012 2024 37 40 YEARS OF PROGRESS THROUGH RESEARCH STANDARD SPECIFICATIONS Continued I c) Metoi lotn, wire lath, and wire faDric snail be securely attached to horizontal and vertical metal supports with No. 18 Length of wire hangers shall not exceed 150 times their diomerer, unless suitcoie stiffener-separarors are proviaed for W. & M. gage, gaivomzed, soft annealed wire ties. Id) All attachments for securing metal lath, wire loth, and at ieast every alternate hanger. Where I bv 3, i 6-in. inserts are used, the lower end shall be wire fabric shall be spaced not more than 6 in. opart. punched for t-8-in. bolts and allowed to proieCT o sufficient dis i el Side laps of metal lath, wire lath, and wire fabric shall be tance below the bottom of the Slab to permit the attachment of secured to supports and be tied between supports at not to ex the nonger proper. ceed 9-in. intervals. Flat steel ncngers shell be bolted to 1 by 3/1 6-in. inserts with If I Flat expanded metal lath and wire lath sholl be lapped 1 2 Va-in. bolts. Inserts used in cinder concrete or tile arch con in. at the sides and 1 in. ot the ends. Ribbed lath shall be lapped struction shall be toggled, with 7-in. cross pieces bearing on top of the sides by nesting, ond 1 in. at the ends. Sheet loth shall be of reinforcing steel in cinder concrete or on top of tile arch con lapped ot the sides ond ends by nesting. Stiffened wire loth ond struction. In slabs of other kinds of concrete, inserts shall be fabric sholl be lapped by nesting ribs or selvage 1 in. at the siaes, secured to steel reinforcement or looped and embedded 2 in. in and I in. at the ends. concrete. (g) Special erection systems which afford equal carrving Wire or rod hangers shall be saddle tied or wrapped oround strength may be used, in which event lath sholl be erected in main runners so as to develop the full strength of the hangers. accordance with the specifications therefor. Lower ends of flat hangers shall be bolted with -)/e-in. bo rs IK) Application of flat expanded metal lath shall be started one to runner channels, or bent tightly around runners and bolted support away from a corner and be bent into or around the to the main part of the hanger. corner and carried an to the support on the abutting surface. Lath (b) Main Runners for the various spacings of hangers shall be shall first be applied to ceilings and the sheets carried down 6 in. of the following minimum sizes: on to the walls and partitions. If loth is not used on ceilings the lathing may be started at the top of the wall and may be bent and corried up 6 in. on to the ceiling joists. Wherever possible the ends of the sheets of lath sholl be staggered. Ribbed and sheet lath, ond stiffened wire lath, and fabric shall be butted at in ternal corners. . (i) Where ribbed, sheet lath, or stiffened wire lath, or fabric are attached to metal supports, cornerite shall be securely tied to lath at all internal corners; such ties shall be applied only at edges of cornerite. Cornerite used on wood supports shall be securely noiled through the lath. DISTANCE CENTER TO CENTER OF HANGERS SIZE OF MAIN RUNNERS Uo to S ft.............................1 Vj-in. cold-rolled channels Up to 4 ft............................1 1 ;-in., 1.1 2-lb. hot-rolled channels Up to 5 ft............................ 2-in. hot-rolled cnanneis or 1 '.-j by 1 V2 by 3/16-in. angles NOTE.--Other shaoes of hot- or cold-rolled members of eaual strength may be substituted m lieu of the above. (c) Cross Furring for various spacings of moin runners shall be of the following minimum sizes, but the maximum spacings for various types of lath sholl not exceed those listed in the last column of Table 1 (Section 18 (a)): Supports for Weights of Lath Listed' table i.--weights of metal lath, wire lath, and wire fabric. Minimum Weights per Sauore Yard in Pounds Vertical Supports Horizontal Supports Wood Metoi Wood Metal 12 fo 13 V2 in. Flot expanded, 2.5 lb. Flat exponded. 3.0 Ib. Wire lorn, 2.48 Ib. Flat exponded, 3.0 lb.a Flot expanded. 3.4 Ib. Wire lath. 2.4B Ib. 16 in. riot expanded, 2.5 lb. Flat rib, 2.75 lb. Wire lath, 2.4S lb. Wire fabric c - Flot exponded. 2.5 tb.w Flat rib, 2.75 lb. Wire lath, 2.48 lb. 1 Wire fabric Flat exoonaed, 3.4 lb. Flat nb. 2.75 Ib. Wire fcoric c Flat rib, 3.0 ib. V-Stiffened, flot ex ponded, 3.0 Ib. Wire fooric c 19 in. Flat rib, 3.0 lb. 4fc-in. rib, 3.0 lb.d V-Stiffened, flat ex panded, 3.0 lb. V-Stiffened, wire lath, 3.3 lb. Sheet lath, 4.5 lb. Flot rib, 3.0 ib. j V-Stiffened, flat ex- ponded, 3.0 lb. ' V-Stiffened, wire loth, 3.3 lb. Flot rib, 3.0 Ib. 3/9-in. rib, 3.0 lb.d V-Stiffened, flat ex panded, 3.0 Ib. V-Stiffened, wire loth, 3.3 lb. Sheer lath, *.5 Ib. Flat rib. 3.4 Ib. V-Stiffened, flat ex panded, 3.4 Ib. V-Stiffened, wire lath, 3.3 Ib. Sheet lath, 4.5 Ib. 23 1/2 in. Flat rib, 3.4 lb.# rib, 3.0 lb.4 V-Stiffened, flot ex panded, 3.4 lb. Sheet loth, 4.3 lb. j ^-in. rib, 3.0 !b.d | * 3.0-lb. flat expanded loth permissible for 12-tn. spacing. b 2.5-lb. flot expanded loth permissible for this spacing only for solid plaster partitions. Poper-bocked wire fabric No. 16 gage wire 2 by 2-m. mesh, with stiffener. <1 RoO-ribbed fiat exponded lath of eaual rigidity and weight is permissible on some spacings as H~>n. rib loth. * 3.4-lb. flat rib lath permissible for this spocmg only for solid plaster partitions. j j ; 1 | . METAL CEILING CONSTRUCTION 19. (a) Hangers shall be of ample length. They shall be secured to steel reinforcement in concrete with cinder aggregate and may be secured to steel reinforcement or looped and embedded 2 in. in concrete with other types of aggregates. For attaching carrying members directly to concrete or steel joists or beams, they sholl be of the following sizes: TYPE OF AREA CONSTRUCTION SUPPORTED SIZE OF HANGERS Concre, ..................................|l6s2qs.q.ftf.t,.,mmaoxx. . No. 10 W. Cr M. gage galvanized wire No. 8 W. Cr M. gage galvonized wire Bar joists 2 strands of No. 14 W. Cr M. gage gal vanized wire Steel beams .......................... .... Special olios NOTE.---inserts or other devices of equal strength may be substituted in lieu of the above. For supporting moin runners of suspended ceilings, they sholl be not less than the following sizes: AREA SUPPORTED SIZE OF HANGERS 12 sq. ft., max.................. 3CI6~in. round, mild-steel roas or No. 6 W. Cr M. gage galvanized wire 16 sq. ft., mox.................. 7/32-in. round, mild-steel rods or No. 5 W. Cr M. gage goivonized wire 25 sa. ft., max.................. I by 3/16-m. flats NOTc.--It is hignlv recommended that all rod hangers be protected with o galvonized or caamium coating and that flot hangers be similarly coated or protected with a rust-inhibitive paint. tINItSO STATES GYPSUM COMPANY DISTANCE CENTER TO CENTER OF MAIN RUNNERS SIZE OF CROSS FURRING MAXIMUM SPACING Ud to 2 ft........................................... * J 14-in. ( a/4-1n. pencil roas cnanneis . or l j 12 in. ) ^s-in. pencil rods or | 1 9 in. Up to 2 ft. 6 in................................. ` i H-in. \ 3/4-m. pencil rods channels or \ j Up to 3 ft........................................... .3/4-n. cold- or hot-rolled channels Up to 3 ft. 6 in................................. .3/4.in. cold- or hot-rolled cnanneis Up to 4 ft. 3/4 -in. eoid- or hot-rolled channels Up to 4 ft, I-in. cold- or hot-roiled chonnels Up to 4 ft. 6 in. 1-in. cold- or hot-rolled cnanneis Up to 5 ft. 1-in. cold- or hot-rolled chonnels 12 in. 23'/2 in: 19 in. 16 in. 231/2 in. 19 in. 12 in. NOTE.--Other shapes of hot-roNed or cold-rolled memoers of eaual strength may Pe substituted in lieu of the obove. Cross furring shall be securely attached to the moin runners by special clips or by not less than 2 strands of No. 16 W. & M. goge galvanized wire or equivalent attachments. :ia xa 410 c w Cl STEEL STUDS FOR SOLID PLASTER PARTITIONS 20. Steel studs for solid plaster partitions shall be of such size and numoer and so located as to provide solid backing at all corners. They snail be set to the required dimensions, properly oligned, mode plumb and true, securely anchored to the floor and ceiling construction and temporarily braced. Studs adjacent to openings shall be doubled and securely anchored to the frames or bucks. Heods of openings sholl be adequately reinforced. metal wall furring 21. <aJ Attachments shall consist of noils driven securely into concrete or into masonry joints, or short pieces of zA-in. channels used as anchors driven info masonry joints. They shall be spaced not to exceed 2 ft. on center, horizontally, and in accordance with the spocing of horizontal channels, vertically, and shall project a proper distance from the face of the wall to permit ties to be made. NOTE.--Where damp-proofing has been damaged, in installation of attocnmenrs, it sholl be pointed witn the same material before proceeding with the installation of the furring. (bl Horizontal Members shall be not less than 3A-in. hot- or cold-rolled channels. They shall be spaced not to exceed 4 ft. 6 in. on center wtth the lower and upper channels not more than 6 in. from the floor and ceiling, respectively, and not less thon Vi in. from the face of the wall. They shall be securely tied to attach ments with No. M W. Si M. gage galvanized wire or with 3 stronds of No. 1 8 W. & M. gage golvanized soft annealed wire, or equivalent devices. (e) Vertical Members sholl be not less thon 3A-in. hot-rolled or cold-rolled channels. They shall be spaced in accordance with requirements for spacing of supports in Table I (Section 18 (a)). They shall be secureiy tied to horizontal members with No. 1 4 W. & M. gage galvanized wire or soddle tied with 3 loops of No. 1 8 W. Si M. gage galvanized soft annealed wire, or equivalent aevices, at each crossing, and securely anchored to the floor and ceiling construction. Where furring is a considerable distance from the face of the wall, channel braces to the wall shall be provided approximately 2 ft. on center, and, where the height exceeds 16 ft., special truss bracing shall be provided to prevent concen tration of load on the floor construction. NOTE.--Specicl devices which are the eouivolent of, or better thon, the noil or channel attachments mav be used in lieu thereof. Special devices, secureiy ottacned to concrete or masonry, in lieu of horizontal members, may be used for support of verticol members. Id) Band-Iron Furring shall be 3A-in. or 1-in. crimped and painted band iron not lighter than No. 22 U. S. gage metal. Such furring shall be stapled to the wall with brick staples not more than 24 in. on centers. Spacing of band-iron furring shall not exceed 16 in. on centers. The wire or metal lath shall be stapled over such band-iron furring with staples providing a penetration cf not less than 3A in. into the masonry. WORKMANSHIP 22. All mefol construction and lathing shall be erected so that finished plaster surfaces may be true to line, level, plumb, square, curved, or as otherwise required, without excessive thickness of plaster. Standard Specifications for SAND FOR USE IN PLASTER 1 A.S.T.M. Designation: C35-39, Adopted 1939* This Standard of the American Society for Testing Materials is issued under the fixed designation C 35; the final number indicates the year of original adoption as standard or, in the case of revision, the year of last revision. QUALITY OF SAND.--It is recognized that for certain pur poses satisfactory results may be obtained with sands not con forming to these specifications- In such cases the use of sand not conforming to these specifications may be authorized only under special provisions based upon laboratory studies of the possi bility of designing a mixture of materials to be used on the job that will yield plaster equivalent in quality to the specified mix ture made with sand complying with these specifications in all respects. Definition I. Sand' for use in plaster shall consist of fine granular ma terial composed of hard, strong, durable, uncoated particles which are free from injurious amounts of saline, alkaline, organic, or other deleterious substances. Organic Impurities 3. The sand when subjected to the colorimetnc test for organic impurities shall show a color not darker than the standard color, unless it is shown by adequate tests that the impurities causing the color are not harmful in plaster. Methods of Testing 4. The properties enumerated in these specifications shall be determined in accordance with the following methods of test of the American Society for Testing Materials: ' (a) SIEVE ANALYSIS--Standard Method of Test for Sieve Analysis of Fine and Coarse Aggregates (A.S.T.M. Designation: C 136). lb) MATERIAL FINER THAN No. 200 SIEVE.--Standard Method of Test for Amount of Material Finer than No. 200 Sieve in Aggregates (A.S.T.M. Designation: C I 17). Grading (Sieve Analysis) 2. (a) Sand for use in plaster shall be uniformly groded from fine to coarse within the following limits: PERCENTAGE RETAINED MAX. MIN. Retained on Sieve: No. 4 {4760-micronl .................................................. 0 No. 8 (2380-micronl ................................................ 10 No. 30 ( 590-micron I ............................................. 80 No. 50 1 297-micronl .' ........................................... 95 No. 100 ( 149-micronl ........................................................... .. 0 15 70 95 lb) The amount of material finer than a No. 200 (74micronl sieve, shall not exceed 5 per cent. lc) The sieves shall conform to the requirements of the Standard Specifications for Sieves for Testing Purposes (A.S.T.M. Designation: Ell) of the American Society for Testing Materials. (c) ORGANIC IMPURITIES.--Standard Method of Test for Organic Impurities in Sands for Concrete (A.S.T.M. Designation: C 40). 1 Under the standardization procedure of the Society, these specifica tions are under the loint jurisdiction of the A.S.T.M. Committee C-7 on Lime and Committee C-l 1 on Gypsum. : Prior to their present adoption as standard, these specifications were published as tentative from 1921 to 1925. being revised in 1924 and 1925. They were adopted in 1925. revised in 1930, bur withdrawn and repub lished as tentative in 1936. These speeificotions ore in effect o revision ond consolidation of, and reploee the former Standard Specification* for Sand for Use in Gypsum Piaster IA-S.T.M. Designation: C35I and the Tentative Specifications for Sand for Use in Lime Plaster (A.S.TM. Designation: C 66 - 31 T), which specifications were accordingly discontinued in 1936. The term sand is defined in the Standard Definition of the Term Sand I A.S.T.M. Designation: C 581 of the American Society for Testing Mate rials. 40 YEARS OF PROGRESS THROUGH RESEARCH BB012 2026 U0S ORIENTAL STUCCO AND-FINISH Factory mixing of Exterior Stucco and Interior Finish insures uniformity of color and mix. Only water is added on the job. ORIENTAL* EXTERIOR STUCCO ADVANTAGES Streoking, due to insufficient mixing of stucco "on the job" is eliminated with USG factory-mixed stuccos. With |obmixing, proportions of materials used are likely to vary, producing stuccos of varying qualities. With foctory mixing quality is always standard. Uniformity of color in successive batches is obtained so that joinings between separate applications will not show if proper precautions are taken. USG Oriental Stucco is water-resistive and its waterresistance and strength increase with age. The mineral colors do not fade, nor are they affected by the other ingredients used to make stucco a plastic material. Setting time is slow enough to provide a sufficient inter val between application and set to permit smooth-troweled, stippled, sponged, rough cast, period textures or spatter finishes. Since only water is added, time is saved on the job. , COLONIAL Light itippli troweled slightly to produce highlights COVERING CAPACITY Base Coat--The approximate covering capacity of one ton of Oriental Exterior Stucco Base Coat (scratch and brown coats) under average conditions, is as follows: Flattering Brick and Surface elay tile Metal lath Wire fabric Cement and Concrete cinder tilt Sa. yd. per Ton 20 to 25 25 to 30 22 to 28 20 to 22 20 to 25 Finish Coat--One ton of Oriental Exterior Stucco, Vi in. thick, will cover from 150 to 200 sq. yds., depending on the texture selected. APPLICATION Oriental Exterior Stucco should be applied over USG Ex panded Metal Stuccomesh, weighing not less than 1.8 lbs. per sq. yd., or USG Self-Furring Diamond Mesh Metal Lath, weighing not less than 3.4 lbs. per sq. yd. MODERN CALIFORNIAN Stippled-- medium heavy desh^flattened vigor ously with trowel ORIENTAL INTERIOR FINISH Oriental Interior Finish supplies similar beauty in texture and color for interior plastered surfaces. It may be floated to various degrees of coarseness by varying the float used. It may be textured with stippling brushes, sponges, brooms and other tools to resemble the illustra tions of Textured Oriental Stucco on this page. Spots of Oriental Interior Finish in contrasting color may be ap plied at random to the wall and blended into the surface with float or wadded burlap. Oriental Interior Finish will cover 250 to 300 yards per ton depending on the texture used. Trade Mart VERTICAL CRAIN Vertical brush ing----flattened with vertical trowel strokes UNITED STATES GYPSUM COMPANY U 5 G ORIENTAL COLORS BB012 2028 SHEETROCK - .. - 'j THE FIREPROOF WALLBOARD DESCRIPTION AND TYPES What It li--Sheetrock, composed of a rugged core of gypsum en closed in tough paper, is an all-purpose, fireproof wallboard. When applied, it produces a finished surface ready to be decorated I for predecorated types, see pages fifty and fifty-one) . Used in new buildings, nailed directly to framework, for all walls and ceilings; and in existing structures for remodeling. The '/a-in. thickness is ideal for application over old plaster surfaces. The joints between boards may be left frankly visible, may be covered with batten strips or mouldings of various sorts, or may be completely concealed. Sheetrock will take any form of deco ration including wallpaper. Sheetrock produces a strong, rugged wall or ceiling which is completely incombustible. A standard constructon material, accepted and approved as such for over 20 years. Recessed-Edge Sheetrock--Recessed-Edge* Sheetrock used with Perf-A-Tape* provides an improved permanent reinforcement at the joint between boards and simultaneously conceals the joint. Because of the "channel'' prepared by the recessed edge, PerfA-Tape reinforcement and the cement used when finished are flush with the face of the board, eliminating any bulge or shadow to indicate the presence of the joint. The strength of the joint is as great as that of the board and, consequently, it will permit horizontal application of the boards (the long edge parallel to the floor) in walls and similar appli cation across the joists in ceilings without the necessity for, or expense of, headers. Such horizontal construction effects many economies and as well produces a stronger construction more resistant to building frame movement. Recessed-Edge Sheetrock may also be applied vertically (long edges parallel to supports). Insulating Sheetrock--Any type of Sheetrock, decorated or plain, may be obtained with a sheet of bright metal foil attached to its back surface, providing at once both an insula tion value against heat loss or entrance, equivalent to that of ^-in. fiber insulation board, and a highly efficient vapor bar rier. The coefficent of heat conductivity is approximately .66 B.t.u.'s per hour, per square foot, per degree difference in tem perature. Finishes--Regular Sheetrock is furnished in a cream, almost white finish for the exposed face. There is also available Wood Grained Sheetrock in Walnut, Knotty Pine and Bleached Ma hogany which are described and pictured on pages fifty and fiftyone and Sheetrock Tile Board on page fifty-three. Recessed - Edge offers a wellboard construc tion that makes possible strong er, smoother, and better-look ing wallboard jobs When sheets are nailad in place, recessed edges form a channel at each joint. Channel is filled with special ce ment, quickly and easily ap plied* SIZES AND RELATIVE COSTS Recessed-Edge Square Edge Thickness Width Length Relative Cost ** %. Vl 4 ft. 6. 7, 8. 9, 10, 1 1 and 12 ft. i !A, % in. 4 ft. 6. 7. 8. 9, 10, 11 and 12 ft. i Walnut Finish Knotty Pine Finish Bleached Mahogany % in. 4 ft. 6, 7, 8, 9 and 10 ft. ii Pert - A - Tape, strong, perfo rated fiber, with chamfered edges is embedded in cement. Insulating Any of the above are available with insulating foil back in sizes given at slight additional cost. Tile Board % in. 4 ft. 6, 7. 8, 9 and 10 ft. hi * Reg. Trade-Mark. T**o?c. iod'caTe* ***** expensive; "IP indicates more expensive than After drying, ce ment is sand-pa pered, assuring smooth surface for any decora tion. t UNITED STATES GYPSUM COMPANY BB012 2029 SHEETROCK* CONSTRUCTIONS APPLICATION OF SHEETROCK "HORIZONTALLY" (Across Joists and Studding) APPLICATION OF SHEETROCK "VERTICALLY* (Long Edges Parallel to Supports) B0012 2030 APPLICATION OF SHEETROCK OVER OLD PLASTER *Rcrt. Trade Mark 40 YEARS OF PROGRESS THROUGH ..RESEARCH WHAT IT IS Gyplap.* as its name implies, is a rugged, tongued and grooved, unit sheathing material. Made in large sheets '/2-in. thick, 24-in. wide and 6 ft. 8 in. or 8 ft. 0 in. long, with a tough, fireproof core of gypsum enclosed in a water- and wind-resistant, heavy paper envelope. The long edges are alternately tongued and grooved. WHAT IT DOES Gyplap is nailed directly to exterior wall studding to form a tight enclosure for the building--free from knots and cracks. Twenty-four inches deep instead of 8 inches, Gyplap sheathing stiffens the framework ogoinst overturning moments. Can be used without building paper covering, but building paper may be used when required by ordinances or lending agencies, without de stroying the price or structural advantages which Gyplap offers over shiplap. Conventional wood siding, brick veneer, stucco on metal lath, shingles or USG Glatex Asbestos Cement Siding (see pages sixty-six and sixtyseven) may be applied over Cyplap as detailed on the next page. All vertical joints are made over studding or framework. All horizontal joints are tongued and grooved. ADVANTAGES Fiv rooms, job started by four mechanics Gyplap supplies sheathing superior to wood shiplap at lower costs both to buy and apply. It increases fire protection and resistance to wind stresses. Gypiap is more easily and accurately cut and fitted. There is no waste; one thousond square feet of Gypiap cover one thousand square feet of sheathing areo, as no allowance need be made for the lops required by shiplap. Mode of rock, it will not rot, contains no sap, resin or oily materials. Gyplap is odorless. It provides no fibrous nesting material for vermin. Gypiap does not shrink, warp, or swell as wood does with atmospheric changes. Investigations of hundreds of homes where Gypiap has been in use for from ten to twelve years, have proved conclusively that there was no looseness around the nails, no rot, evidence of invasion by rodents or other vermin, no disintegration or lessening of value. PACKAGING: Not packaged. Shipped in carload lots properly piled and braced. Thirty-five minutei later BB012 2031 NAILEX FASTENERS Nailex Fasteners (new . . . see page 67) permit nail ing directly to Cyplap. avoiding older method requiring furring strips when wood or asphalt shingles are to be applied to the siding. *Rcg. Trade Mark Two hour* Iotor: fully shoathod and roady for brick vonoor Eight hours labor for 1624 scj. ft. of fire proof sheathing. Larger buddings, more speed----lower costs. gyplap constructions BRICK VENEER OBSTRUCTION Metal Ties Every . Fift)i Course Naiied 'to-Studs ^------- U- GypiapVQheathingf;-. -ITS WOOD SIDING CONSTRUCTION STUCCO ON FRAME CONSTRUCTION vi- . .. ...... Gqplap Sheathing;.:.' IBS Seif farring o'-n" Diamond Mesn Lath' use oriental Stucco----- SHINGLE. CONSTRUCTION I GypJap Sheathing . Vz Thick , 24* Vide , 6-s' <*. 8`-o` Long . Nail to Studs : 4'o.c. Scale: 3/g"=r0" BETTER BRACING Two identical 8 ft. 0 in. x 8 ft. 0 in. stud wolls --one sheathed with Gyplap, the other with S-in. No. 1 Yellow Pine Shiplap--were tested comparatively by insert ing a hydraulic jock be tween them at their fop plates. Shown at right is the deflection from the perpendicular in the wood sheathed panel os compared with that of rhe Gyplop ponel under identical loading. 40 YEARS OF PROGRES5. THROUGH RESEARCH! BB012 2032 I | ^ JNAlCS AND NAIUNG STANDARDS r! O FOR USG MATERIALS ....... ...... NAILS FOR LATH PRODUCTS Material to be Applied Nail Type Length Gauge ; Head Point No. Per Lb. Maximum .Spacing Rocklath Blued Smooth IK' 13 1 H" flat Diamond 448 4' Metal Lath flat-expanded or flat rib (walls) 4d. Common* or 1' Rfg. Galv. or blued IK' l* 12K 10 j 1 Hr 316 7" 232 7' Ceilings 6d. Common* IK' Rfg- 2' IX' UK ! HT 10 174 7" 190 7' K' Rib and Sheet Lath Anv lath for Exterior Stucco Weatherwood Tns. Lath K* 6d. Common* IK' Rfg- 6d. Common* or IK' Rfg- Blued Plaster Board 2* ix' 2* IK' IK' UK 10 UK 10 13 i 1 ! I 1 ! ii i nr nr nr Long Diamond 174 190 174 160 448 7" 7" 7' 7* 5K' % CO hMiHI Weatherwood Ins. Lath I" USG Furring Runners Runner Track (Trussteel Studs) Blued Plaster Board 6d. cut case hardened Com. Oil quench hardened concrete stub nails. IX' 2' K' i Long H"13 i Diamond 241 j ii 160 ( i i- ; 5K' All common nails driven to minimum penetration and bent over two strands of lath (walls) and three on ceilings. Minimum Penetration ' ** y* XT l' i' IK" IK' IK' IK' NAILS FOR BOARD PRODUCTS .1 i Maximum Spacing ( X' & W Sheetrock 4d. Cement Coated 1 ; j j IK' : ; | Edges & Ends 3'f 14 : X' flat ; j 488 | Intermediate ' i Walls 9* ill Ceils. 6* 1 Yi" Sheetrock applied parallel to supports (Vertical). 1 5d. Cement j Coated IK' ! 13K X' flat |. | When applied across supports (horizontal) maximum spacing is 4". j j j ! j 364 ! ; j Edges & Ends 3'f Intermediate Walls 9' Ceils. 6' Sheetrock Tileboard 4d. Cement i IK' ! 14 Coated i i jK' flat j Edges: in every squaref 488 Intermediate: in every other square. Wood Grain Sheetrock Gyplap i 4ri. Finishing j j i Nail i IK' j 15 Barbed Galv. i 1 Roofing ! IK' ! 10K ! Brad j Head I 1 hY ! | | ' I j 584 | 1 147 Same as K" Sheetrock but nail at 45 angle. o' Max. on all supports. Notes: fAll edge and end nails not less than Y% from edge of board. Do not stagger nails at abutting edges of adjacent boards. PLASTERING COSTS MATERIALS AND LABOR PER HUNDRED YARDS USG PLASTERS AND FINISHES BASE COAT PLASTER-ON-LATH j p|;l>tcr ^ <*** ; >:iml Tabor Plasterer Ton-' ) \ tlj*.> Mixing (Hrs.i . Mood Lath i! ; 1430 I 1 | ?'4* ! 4' i i>cs. ] 0.6 | 1.0 ) 8 hrs. S hrs. NEAT GYPSUM Metal Lath Rocklath | < a) J'B* Lin*D* 's' 1 yds. j 900 .4' | sq. ft. 0.9 0.5 1 .$ i 12 hrs. 12 hrs. 1.0 S hrs. 8 hrs. PLASTER Weacherwood Insulation Lath <aj r 4' 900 sq. ft. 0.5 1 1.0 $ hrs. 5 hrs. Brick or Tile ia) 900 W ,-'5* *T* sq. ft. O.ri 1.5 S hrs. S hrs. Pvrobar <ai 1 4' 1 4' ISnWw.lt. i 0.4251 1.0 1 $ hrs. 8 hrs. Wood Lath | 1450 pcs. 1. i 0.0 i S hrs. 1 S hrs. Metal Lath Y* 5s" 105 yds. 2.5 0.0 12 hrs. 12 hrs. SANDED GYPSUM PLASTER Rocklath Weatherwood Insulation Lath | 4' 2<' 1l' Vi 900 j sq. ft. | 900 sq. ft. 1.3 1.3 0.0 S hrs.! S hrs. 0.0 S hrs. 8 hrs. Brick or Tile 900 2.0 | 0.0 | S hrs. X' 4'- sq. ft. 8 hrs. Pvrobar S55 4' 4' sq. ft. 1.5 0.0 S hrs. 8 hrs. WOOD FIBRE GYPSUM PLASTER Wood Lath Metal Lath Rocklath X' 4* 1450 pcs. 1.1 0.0 8 hrs. 8 hrs. x*l y* 105 yds. 1.7 0.0 12 hrs. 12 hrs. 4" ! 4' 900 sq. ft. 0.S5 0.0 8 hrs. 8 hrs. Weatherwood Insulation Lath 1 900 0.S5 1 0.0 V 4' sq.ft. 8 hrs. 8 hrs. BONDCRETE Concrete 900 H' 4"- sq.ft. 1.0 0.0 8 hrs. S hrs. Brick or Tile K- 900 4.0 to r sq. ft. to 5.0 0.0 18 hrs. 204 hrs. Metal Lath ORIENTAL Paper Backed EXTERIOR Wire Fabric BASE COAT Cinder Block tXo *r ....... ! 1 toXr' X* to 1' 105 yds. 110 yds. 900 sq. ft. 4.0 to 5.0 4.0 to 5.0 4.0 to 5.0 0.0 IS hrs.! 204 hrs. 0.0 18 hrs. 204 hrs. 1 0.0 IS hrs.!204 hrs. Concrete tXo 'r 900 so. ft. 4.0 to 5.0 0.0 IS hrs.! 204 hrs. Float Trowel PREPARED FINISHES Oriental Ext. Sabinite ......... i 0.40 ....... ....... ...... .......... . . ....... 0.31 0.30 0.60 4' 1.00 0.0 5 hrs. 10 hrs. 0.0 5 hrs. j 10 hrs. 0.0 15 hrs. 0.0 12 hrs. 124 hrs. 0.0 7 hrs. 11 hrs. JOB MIXEDi Gaueed Lime Puttv!....... |........... FINISHES Sand Float 8 hrs. 6.0 0.16 cu. ft. 5 hrs. 10 hrs. KEENE'S CEMENT FINISHES 1. Extra Hard 2. Medium 3. Hard i........ |............ ... ........ 4. Sand Float 5. Quick Troweling ........ ............ (a; Unfibred plaster. i .......... ........ ...... ........ 16.00 cu. ft. 5 hrs. 12 hrs. 5 hrs. 12 hrs. 12 hrs. 6 hrs. 12 hrs. 5 hrs. 110 hrs. SAND FOR PLASTER Sand i used in planter to reduce cc*i and to make the plaster easier to apply. The sort 01 sand used i very important. Each grain should be sharp ami angular in nature. The sues of the grains must be maintained within specified limits ii the plasterer is to produce a good job. The American Society for Testing Materials ha6 established a very exacting specification for sand. The Cnited States Gypum Company believes that it should be in every architect's specification and that the use of specification sand should be insisted upon on every construction ;oo. A simplified form of that specification follows: - SAND--Sand used for plastering in which gypsum is employed shall consist of fine granular material, naturally or artificially produced by the disintegra tion of rock containing not le than $0 per cent by weight of silica, feldspar, dolomite, magnesite or calcite, and snail be free from saline, alkaline, organic or other deleterious substances graded from fine to co&rse within the following limits: Percentage retained Maximum Minimum Retained on a No. Retained on a No, Retained on a No. Retained on a No. 4 sieve....... 3 xieve....... 30 sieve....... 30 sieve....... 0-1 lCTe $0% 9o( c O'-, is'-. ~0r~c Retained on a No. 100 sieve........ 95T. Weight removed by decantation. Not more than o The sieves shall conform to the requirements of the Standard Specifications for Sieves for Testing Purposes of the American Society for Testing Materials (Designation: Ell). : l.imo (loiin) 2 nZ 5 se i f 5 32 |j l 1 0.07.5 0.150 0.0 0.0 0.0 0.0 0.0 0.0 0.22 0.0 o.os 0.20 0.0 0.025! 0.20 0.0 0.1 0.20 0.0 ........ 0.20 PLASTER GROUNDS Plaster grounds are used wherever plaster is used. They serve several purposes in construction. First, they fix the thickness of the plaster. Second, they provide a use ful wooden member to which trim can be nailed. ^*ith few exceptions the wood grounds, which are simply scrips of wood of a specified thickness, are nailed directly to the studs or wired to metal studs before lath is applied. Their dimensions, therefore, are governed by two things, the thickness of the lathing material used, and the thickness of plaster coat desired. Should we have a lathing material H* thick, such as Weatherwood In sulating Lath, and desire a ,4r of piaster over it. our grounds would be V. With ?#* Rocklath the ground would be thick if a half i neb of plaster is to be applied. Thus to get the correct ground size (when the grounds are nailed to studding) simply add - the thickness of the plaster base to the thickness of piaster desired. t*40 UNITES STATES GYPSUM CO. vcos sioaa 47 40 YEARS OF PROGRESS, THROUGH RESEARC3 UgS PREDECORATED WALL AND J CEILING BOARDS ^ ;vP'; WEATHERWOOD TILE AND PLANK Wtathtrwood* products build; insulate; decorate; and quiet sound; in one low-cost operation. Mode of wood fibres, felted into board form and knit together by a process which permits accurate control of strength and insulating value. Due to diversity of sizes, mony decora tive effects ore obtainable. Weatherwood requires no decoration, but it can be painted to ochieve effects other than those permitted by its own coloring. ADVANTAGES The insularing value of 1 in. of Weatherwood is eoual to a 15-in. brick woll, 3 in. of lumber or 37 in. of concrete. It possesses effi cient sound absorbing properties. Weatherwood is strong. Its rigidity odds structural strength. The tough surface resists scuffing and morring. Tests on Weatherwood Hi-Lite finish gove an overage light reflection factor of 70 %. Economy is provided since all these advantages are combined in one material and are, therefore, applied of one time. Pointing is economical. Weatherwood absorbs paint slowly, requiring less thon similar fibrous products. Conforms to Government Specifications--Weatherwood meets all re quirements of Federal Specifications LLL-F-321a -- Insulating Fibre Board. ACOUSTICAL TREATMENT Special low density Weatherwood tile is ovoiloble where oddifionol sound absorption is required. USES Weatherwood is used in o wide variety of buildings, including homes, stores, offices, theotres, churches, auditoriums, restaurants, tovems and mortuaries. COLORS AND TEXTURES Weatherwood is made in shades of ivory, grey and fan, to hormonize with most interiors. These colors ore designated: os HiLite; Blenatex, o mixture of greys and tans; ond Grey-Ton. Tex tures ore; Regulor, which is a plain but not ironed finish; and Textured, a slightly roughened finish. TILE Size | Thickness i Color, Surface ! Edge 12 x 12 x 16 x 16 x 12 in. 24 in. ! 6 in. 32 in. : ! Yz in. ' regularly; ' 1 in. on ; order j Yi in. Hi-Lite in j Textured or j Regulor; j Ogee 1 in. Hi-Lite Tex-1 tured only PANELTILES These sizes may be cross-scored* * 12x24 in. 16x32 in. 24 x 48 in. 3A in. Hi-Lite or Blendtex, Textured only Ogee 1 x 4 ft. 4 x 4 ft. 2 x 8 ft. 4 x 8 ft. PLANK . 4 ln' ! Hi-Lite ! Textured only i Ogee 8, 10. 12 or 16 in. wide x 6. 8, 10 or 12 ft. lonq. Vl in. BOARD PANELS Blendtex Textured only; Hi-Lite on order Ogee Long Edges 4 ft. wide x 7, 8. 9, 10 or 12 ft. long ,.1 /2'n- ! regu a y, | 1 ,n,, P/2 in. or 2.n. on order ! Hi-Lite in Regular; Grey-Tan in Tex- . fured. Hi-Lite 1 TextJred order onjy Square * 'CROSS SCORED TILE Tile and Paneltile indicated may be cross scored to represent two square tiles. Advantages are that two tiles ore applied with the speed of one and rney may be applied without regard to joist spacing. l/SG Salf-Spaeing, Floating Joint with Ogee Edge. m Cross scored tile applied with* out regard to joist spacing. I j i gq si HJ vim Weatherwood Tile applied with odhesivcs to flat surfaces. ctrn-p ?Tnno BB012 2036 PACKAGING: Tiles: 8 to 32 pcs. per bundle. Poneltiles: 4 to 12 pcs. per bundle. Plank: 12 pcs. per bundle. Random width plonk wolb and til* coiling in BJontftax. Solectod plonk oppliod horizontally on walls. Tile coifing. 40 TEARS OF S*ROGRESS TjbHtipUGH RESEAKCH 5 SHEETROCK GRAIN BOARDS USC Sheetrock* Groin Boards present the appeoronce of wood with the advantages of gypsum. The graining, knots and coloring peculiar to Bleached Mahogany, Walnut or Knotty Pine ore transferred to the face of the Sheetrock by photographic ond printing processes, permitting faithful reproduction, fhe fine! finish is a factory applied lacquer which protects and preserves this surfoce. The durability and non warping qualities of Sheetrock are present in Sheetrock Grain Boards. They will not burn nor support combustion, thereby adding fire pro tection. FINISH AND CLEANABILITY One of the most imoortont odvontoges of Sheetrock Gram Board is that it can be used without decoration. Where excessive weor is expected, or a glossy finish is desired, the panels may be waxed or varnished, after the application cf a coat of shellac. Groin Boards are easily cleaned with a mild soap and water solution. ECONOMICAL . . . QUICKLY APPLIED The low cost of Sheetrock combined with the saving in decoration cost make Sheetrock Grain Boards economical. Further savings accrue through ease and speed of application. Since Sheetrock Grain Boards are available in large size sheets which reach from floor to ceiling and span three spaces between studs placed 16 inches on centers, application is rapid..The boards are easily nailed and cut, reducing erection time. SIZES AND RECOMMENDED USES Sizes. 4x6, 4x7, 4x8. 4x9, and 4x10 feet. Thickness, % in. Approximate shipping weight, 1500 pounds. Sheetrock Grain Boords are used in libraries, dens, hallways, finished basement and attic rooms, shops, offices, restaurants, clubs and display rooms. MOULDINGS Although Sheetrock Grain Boards may be used without panel strips, wood paneling is more faithfully simulated by using a typical panel design. Such des:gns can be simple and inexpensive. An almost unlimited variety of effects can be obtained. Stock ond special mouldings, in fact virtually anything available for use over wood paneling, can be used with.Sheetrock Grain Boards. Mouldings ore stained to harmonize with the board, adding authenticity to the appearance of the Sheetrock itself. Picture moulding, cove moulding, chair rails, plate rails and base assemblies may be used. Interesting effects have been obtained with chromium and other metallic mouldings. PACKAGING: 2 pieces per bundle. Bleached Mahogany Finish UNITED STATES GYPSUM COMPANY Walnut Finish Knotty Fine tinish BB012 2038 X WEATHERWOOD HARDBOARDS fW ___ ________;____________ ____ Made of long, strong wood fibres interlaced to form a material crossbraced in all directions. Board is moulded under tremendous pressure ond intense heat. The result is dense, hard, strong boards with two smooth, usable sides in tones, of brown, one slightly darker than the other. ADVANTAGES Weatherwood85 Hardboards may be sawed, cut. giued. nailed or lommoted. They ore flexible and con be bent to small diameters. Mode m large sheers, they ore quickly applied. Weotherwood Hardboord for interior use does not need ony protective paint, varnish or wax treatment. When used outside, or where the natural color or surface gloss is not suitable, Weatherwood Hordboord moy be pointed, stained, enameled or finished tn any manner. USES Principol uses are wainscots, walls, ceilings, folding partitions and sliding panels. FOUR TYPES Oensboard--Lightest weight, leost expensive Hordboard. Sheet sizes: 4 ft. x 2, 3, 4, 6, 8, 9, 10 ond 12 ft. Vi in. thick. Structoboard--Denser than above but less dense than Hordboard below, rigid ond economical. Sheet sizes: 4 ft. x 2, 3, 4, 6, 8, 9, 10 and 12 ft. Vi in. thick. Weatherwood Hordboard--Hardest, densest untreated Hardboord. Scuff-resistont. Sheet sizes: 4 ft. x 2, 3, 4, 6, 8, 9, 10 and 12 ft. Ye, 3/n or Vi in. thick. Treated Weatherwood Hardboord--Same general characteristics as the other USG Hardboards but harder and denser. It resists water absorption. Mode plain or with 4x4 in. indentations to give it a tile-like effect. Especially suited for high humidity environments: bathrooms, kitchens, laundries, etc. Treated Weatherwood Hordboard is Vs in. thick. Sheet sizes: 4 ft. x 2. 3, 4, 6. 8. 9, 10 and 12 ft. Weatherwood Tile Board is Ye inch thick, 4 x 12 ft. sheets. PACKAGING: Densboard, Structoboard, Vs in. and -,V in. Hordboard: 48" x 6', 8', 9', 10', 12'................................................. 6 pcs. per bdl. 48" x 2', 3', 4'....................................................................10 pcs. per bdl. Vi" Hordboard, 48" x 12'-0"...................................... 3 pcs. per bdl. Vs" Treated Hordboard, 48" x 8', 10', or 12'. . . 6 pcs. per bdl. A ro?! STOflfT (5 SHEETROCK TILE BOARD USG Sheetrock Tile Board produces a cream colored finished wall or wainscoting with tile-like impressions 4 V* inches square. Since it is made of gypsum board it will not warp or buckle, and it is incombusti ble, adding fire protection. RECOMMENDED USES Sheetrock Tile Board is used for bathrooms, kitchens, lavatories, dairy buildings, restourants, in fact, any place where a tile design is required. Ideal for woinscots. The large sheets moke joints be tween boards unnecessary in small rooms. EASILY DECORATED It con be decoroted with most wall finishes. However, when paint or enamel are used -- a solid color for the "tiles" and a lighter color for the joints -- the appearance of ceramic tile is produced. Designed for economical painting, the closely knit calendered surface of Sheetrock Tile Board saves both labor and paint. ECONOMICAL Sheetrock Tile Board, low in first cost, with its close simulation of ceramic tiling and inherent speed in erection, permits faster com pletion of any room where a tile effect is desired. INSTALLATION Readily cut to fit any space, the large sheets are nailed directly to studding or joists and the nail heads are finished, unnoticeably with Sheetrock finisher or joint cement. In large rooms, where joints between boards are unavoidable, the joints may be finished with Perfatape, and concealed as perfectly as those of plain Sheetrock. SIZES Boards are made in a standard 34-in thickness and 4-foot width in lengths of 6, 7, 8, 9 and 10 feet. PACKAGING: Two pieces per bundle. BB012 2040 Point covers well over Tile Board. Odd shed pieces ore easily cut from standard sized boards. 40 YEASS OF PROGRESS THROUGH RESEARCH PYROBAR GYPSUM TILE fon partitions and furring; beam, girder and column fireproofing USG PYROBAR GYPSUM TILE FOR PARTITIONS AND FURRING And for Fireproofing Structural Steel Pyrobar0 Partition Tile Made in furring, solid and hollow types. Pyrobar Par tition Tile are machine-made and moulded extremely accurately. All are scored to receive plaster except when specially ordered, when smooth surfaced tile can be fur nished. For sixes, weights, etc., see table at top of opposite page. ADVANTAGES 1. Fireproof a. Gypsum is incombustible. Adds no fuel to flames. b. Gypsum cannot pass high temperatures; hence: 1. Keeps heat from heat vulnerable steel. 2. Confines ignition temperatures to room of their origin, effectively restraining the growth of a building fire. c. Gypsum constructions will not expand under fire exposure suf ficiently to wreck themselves or dislocate fire-weakened steel. Since they expand not through some 1800 but through the low gradient from room temperature to 212 regardless ot the intensity of the fire. d. The fire resistance ratings of gypsum constructions have been established by numerous laboratory tests and proved by observed behavior in many fires; their high degree of protection is a matter of record. e. Under fire exposure, gypsum calcines (loses its water of crys tallization) progressively from the exposed face. The calcined por tion, soft, spongy and heat insulative, clings to the face further retarding the progress of calcination. Regardless of the fire tem perature, the temperature in a protected room or of protected steel can not exceed 212 F. until the gypsum is calcined clear through. The rate of calcination is very slow. A 3-in. Pyrobar partition pro tects for 2 hours against standard test exposures, a 4-in. partition for 4 hours. 2. Less Weight Clay tile, as used for fireproofing, weighs from 23% more for 2-in. split furring to 50% more tor the much used 3-in. hollow non-bearing tile than Pyrobar Gypsum Tile (figures calculated from data in A.S.T.1I. specifications for both materials). The stone concrete protection for an I-beam whose 6-in. flange is 8 in. below the structural floor it supports weighs 83.4 lbs. per running foot of beam. Pyrobar beam and girder protection for the same beam weighs but 26 lbs. per running foot. The concrete pro tection weighs 227% more. 3. Large Economical Units The large economical units, laid in Biockset Cement (see page thirty-one), use less mortar as they have-fewer joints, require less labor, speed completion. Inherently economic, these materials supply maximum utility. 4. Easily Cut and Fitted Pyrobar Gypsum Tile are quickly cut with a saw to fit any con dition. They do not shatter when cut. eliminating breakage waste. Pipe and conduit chases are accurately cut. 5. Excellent Plaster Base Pyrobar Gypsum Tile are cast in accurately dimensioned straight true molds. They do not warp, twist or shrink when setting. There fore, Pyrobar Tile are true to dimension, make straight walls with plane faces, saving plaster. The bond between gypsum plaster and Pyrobar Tile has a factor of safety of 173. 6. Fit All Beam and Girder Shapes Pyrobar Beam and Girder Tile Pyrobar Beam and Girder Tile are designed to accommodate all standard steel shapes as rolled or built-up girders with a minimum number of tile shapes, reducing the number of fireproofing shapes on the job, cutting costs and speeding completion. For beam and girder protection, the flange of the beam or girder is protected by the most suitable of the four types shown above and detailed on the opposite page; the webs are covered with Pyrobar Partition Tile supported as shown in the details. For column protection, Pyrobar Gypsum Partition Tile, of proper thickness, are laid up around col umn in log-cabin fashion; all short pieces may be built in. 7. Availability 5 Pyrobar Gypsum Partition, Furring and Fireproofing Tile are available in like excellence, made to the same standards, presenting identical usefulness and fire protection, from each of a string ot manufacturing mills stretched from coast to coast. Architects speci fying Pyrobar can ignore design requirements imposed by local aggregates, hard or soft burned tile, etc. *Rcg. Trade Mark Ji NITED STATES >YPS UM COM PAN Y QB012 2041 PYROBAR PARTITION AND FURRING TILE--SIZES AND WEIGHTS Size of Pyrobar, Gypsum Tile, In. j ii Recom- i Weight ; Weight i mended heights ; ; tile per 1 mortar ; per lor Sq. ft.. sq. It., each size lb. lb. I 1 \A in. Spiit... 1 J'2xl2x30l Furringt i 4.9 1.4 2-in. Split. . . . .2x12x301 Furring T 1 6.4 1.4 2-in. Solid. . . . . 2\12x30j 10 feet' I 10.0 1.3 3-in. Hollow.. .. 3xl2x30l 13 feet' | 10.0 : 2.0 3-in. Solid.... . ,3xl2x30i 15 feett i 13.0 2.0 4-in. Hollow.. ..4xl2x30| 17 feet* i 13.0 2.5 5-in. Hollow 5x12x301 20 feet* I 17.2 : 2.75 6-in. Hollow.. .. 6x12x30!1 30 feet* ii 19.0 , 3- 'Underwriters' Laboratories recommendations. Weight plaster one side per sq. ft., lb. 34 in. grounds Total weight plastered. one side, per sq. ft., lb. !. Weight | Total plaster 1 weight two i plastered, sides 1 two sides, per sq. It.. I per sq. ft., lb. ! lb. 3 7.9 3 9.4 :................. 3 13.0 6 ! 16.0 3 13.0 6 16.0 3 16.0 6 1 19.0 3 16.0 6 i 19.0 3 20.2 6 1 23.2 3 22.0 6 25.0 Approx. mortar requirements per 1000 sq. ft. Pounds Cubic Set Fast yards Cement 1 sand 300 0.625 600 0.75 600 : 0.75 800 1.00 800 1.00 900 . 1.125 1000 1.25 1100 ; 1.40 t-N'o Underwriters' recommendation. FIREPROOFING FOR STEEL BUILDING FRAMES Gypsum is unique as a fireproofing material in these regards: 1. More protection for less weight. 2. Will not transmit high temperature. 3. Best base for gypsum plaster. 4. Fewer shapes on job, faster erection. 5. Complies with Underwriters' and Building Code Requirements. Column Fireproofing--Partition Tile are laid up in proper thick ness around column in log cabin fashion. Beam and Girder Fireproofing--(See Table Below). All obtain able in smooth surface for direct paint without plaster. ANGLE TILE 1 S-in. Lengths SHOE TILE 18-in. Lengths PYROBAR BEAM AND GIRDER TILE--SIZES AND WEIGHTS WHEN SIDE COVER OVER 36". USE A~ HOLLOW PYROBAR FOR FIRST COURSE. 3 HOLLOW PYROSAS '`CLIP Type L'34 L-45 I.-46 F H T Weight per lin. ft.. Ibs. y 4' 4' S' 2y' IS 18.5 4' 6' 20 3" HOLLOW PYOOBAR \t Max, Type width ot flange F B-40 5' B-50 B-65 5-80 6' 7H' 9' 8K 9K' 1014' B-10O-C 'Channels) H 4K' 4 K' 4 K' 4K' 4H' T H' "A' ``u* u* Weight w per lin. it., lbs. 2H# 3K' 4* 4K' 12,5 13 15 16 10 STRAP TYPE SOFFIT TILE 24-in. Lengths SOFFIT TILE 2<" LENGTHS CUPY Type 5-10 S-ll S-12 S-13 S-14 5-15 F 13K' ISK' l?K' HK' iK' 19X' C 2-U' 2K' 2' Z2*K' T V^ r y Weight w per lin. ft., lbs. 10' 13 ti' 13 12' 14.5 13' 14.5 14' 16 15' 16 TILE SECURED TO BEAM SOFFIT WITH 2`A'x.3x`/a~ PLATES IN WIRE LOOPS FOUR PLATES PER TILE. IHICKEN WIRE IME5H tEINFORCING FulLL MESH IA SECTION * LOOP WIRE-v, 3" HOLLOW TPYRO BAR iV '.|r|ON SIDES y-o~ PLAN typical installation Type A Weight Max. B c D per lin. | width it., ibs. (offlange B-30-S BB--4s0a--Ss B-60-S :.K' 8K' 9K' io' B-70-S UK' BB--9800--SS B-IOO-S U-U5-S U-130-6 B-145-S I2K' I3K' 14K' 1I75KK'' B-I60-S 1 20H' B-175-S zik' 3' 3K' 33K'' 3K' 3H' 3K' 3w' 43H' " 4' 4' 3 K' 4H' 5K' 7K' *9KK'' 10K' U15KH'' 14' 16V 17V 1* IK' IK' IK' IK' IK' IK' 1H' 1H' IK' 2' 2' 2' 8 9 10 n 12 13 U 15 16 i?K IV 2If0 K 3' 4* 5* 6* 7' 8* 9' 10' UK' LJ' 14 T 16' itK' 55 DD012 2042 -40 YEARS OF PROGRESS THROUGH RESEARCH USG MASON'S LIME IN BUILDING CONSTRUCTION Water-tightness and durability are the criteria of quality in masonrv. If thoroughly burned brick, tiie, hard dense stone or concrete are used and construction is correct, excessive rater penetration can occur only at joints. Lime mortars are the most effective means of providing watertight joints. Advantages of Lime in Masonry Mortar Plasticity--Lime is the most plastic cementing material. Building units must be thoroughly and uniformly bedded and joints well-filled to assure leakless masonry. The more plastic the mortar, the greater the chances of uniform distribution. Bonding Power--Lime bearing mortars adhere to the build ing units uniformly at all points and have sufficient elasticity to adjust themselves to varying stresses. They do not tear loose from the building units. Low Volume Change--Lime is the only cementitious mate rial having negligible volume change after hardening. Its high water retaining capacity prevents compacting, the important cause of leakage through vertical joints. Extensibility--This quality determines extent to which mortar will stretch before it tails in tension. Lime mortars and mortars containing lime have ample extensibility. Strength--Strength in mortar does not necessarily indicate durability. Test data indicate that mortar mixes containing lime produce mortars of ample strength. Examples of enduring qualities of masonry laid in lime are found in old structures in Europe and America. Brick Mortar with Lime Produces Watertight, Durable Walls Lime in Concrete Hydrated lime is used as an admixture in concrete for its qualities of water-tightening, lubricating and physical stabiliza tion. It makes concrete watertight by increasing workability; re ducing honeycombing, stone pockets, etc.; filling forms, pre venting segregation, and reducing the relative amount of water required. BB012 2043 High Calcium and Dolomitic Limes Showing Separation of Aggregate from Cement Quicklime or hydrated lime can be produced from either high calcium limestone or dolomite (high magnesium lime stone). Ir building construction, the physical rather than the chemical composition of lime is important. Therefore, either calcium or magnesium lime may be selected as the physical properties are the same. UfllTSS STATES GYPSUM COMPANY MORTAR MIXES FOR VARIOUS TYPES OF MASONRY Masonry Type ' Type of . Construction Common and face clay,: Dwellings, garages and shale or sand-lime brick similar construction Loading 1 Any condition of loading j for such types of con- | struction ! Mortar Proportions (Volume) Lime: Cement: Sand 1:0:3 Remarks Clay or shale brick Walls and piers below Ordinary distributed grade continuously exposed Heavy concentrated to wet or damp conditions Earthquake tremors 1:1:6* 1:1:6* 1 : 1:6* Common and face clay, Exterior walls and piers Ordinary distributed shale or sand-lime brick above grade Heavy concentrated Earthquake tremors 2:1:9* 2:1:9* 2:1 : 9* 2:1:5 Mortar do mestic and power plant chimneys Granite, limestone, marble. Exterior walls and piers Ordinary distributed sandstone, terra cotta fac- , above grade Heavy concentrated ing and trim 1 Earthquake tremors 2:1:9* 2:1 : 9* 2:1 : 9* Use non-staining Portland cement and washed sand Common and face clay,, Interior walls and piers Ordinary distributed shale or sand-lime brick,; above and below grade Heavy concentrated concrete brick 1 Earthquake tremors 2:1 : 9* 2:1:9* 2:1:9* Hollow clay tile, concrete Exterior walls above grade Non-bearing partitions, ex block, concrete tile, cinder and interior partition walls terior and bearing walls block and partitions! 2:1:9* 2:1; 9* 2:1 : 9* Notes- Materials to conform to current c_-r c,, , j c__ The sand content A.5.I.M. standard specifications . Mortar containing Portland cement to be used within one hour after mixing. 'One volume of cement is the maximum quantity which should be used. is to be varied in accordance with its quality in the particular market involved and its proportion may be reduced if greater mortar strength is desired. From "Masonry Mortar, Bulletin 321" published by National Lime Association. ISee also Blockset Cement, page 31. use BRANDS OF MASON'S LIME AND PACKAGING The United States Gypsum Company produces limes under various trade names. Each meets the require ments of building construction and each has all the advantages outlined on the opposite page. It is suggeted that the USG local brand be specified. The brands follow: Red Top* Mason's Hydrate................50-lb. paper bags Snowdrift* Hydrated Lime.................. 40-lb. paper bags Marble Rock Mason's Hydrate.............. 50-lb. paper bags USG* Mason's Hydrate........................ 50-lb. paper bags USG* Superfine Mason's Quicklime. .80-lb. paper bags USG* Pulverized Mason's Quicklime.50-lb. paper bags USG* Fine Grain Mason's Quicklime. 80-lb. paper bags Peerless Pulverized Mason's Quicklime.... 100-lb. paper bags and 180-lb. net wood barrels or steel drums Peerless Lump Mason's Quicklime... 180-lb. net wood barrels or steel drums Marble Rock Pulverized Mason's Quicklime........ 60-Ib. paper bags and 90-lb. steel drums Marble Rock Pebble Mason's Quicklime... .90-lb. and 100-lb. bags, 90-lb. steel drums and 180-lb. wood barrels Marble Rock Lump Mason's Quicklime. 180 and 280 bbls. USG* Mason's Lump Quicklime.......... 180-lb. net wood barrels or 180 and 200-lb. steel drums All above brands may be shipped in bulk. *RtQ. Trade Mark 00012 2044 DIRECTIONS FOR SLAKING QUICKLIME High Calcium--Use 25 gals, of water per 100 lbs. of lime: add lime to water, spreading evenly with hoe. Hoe vigorously, adding water slowly while hoeing to produce thick creamy consistency. Do not "kill" boiling by adding water too fast. Dolomite--Use 15 gals, of water per 100 lbs. lime: hoe only sufficiently to level out mass. In cold weather put Quicklime in dry box. add small amount of water to start heating ac tion--continue to add water, as heating proceeds, until thick creamy consistency is obtained. Ageing (not necessary for ground or pulverized)--Lump or pebble lime, after slaking as above, should be run through an 8 mesh screen and then permitted to age at least one week before use. Protect from drying out and irost. DIRECTIONS FOR SOAKINC HYDRATED LIME Use 6 gals, of water per 50 lbs. of hydrate; add lime to water uniformly. Water must cover the lime. For best results, should soak 6 hours, preferable over night. Protect from frost and keep moist. USG Mason's Hydrate (brand) requires no soaking; de velops plasticity as soon as mixed with water and the other materials. Mixing--Mix putty with sand and cement just before use, with sufficient water to produce proper mortar consistency. 40 YEARS OF PROGRESS%HROUGH RESEARCH UAS STRUCTURAL INSULATION Woatherwood Plaster Base--Weatherwood Asphalt Coated Sheathing Weatherwood Boof Insulation--Weatherwood Tile and Plank Weatherwood Building Board . , . Insulating Sheetrock--Insulating Boddath USG STRUCTURAL INSULATION Guide to the Selection of Structural Insulation Products PRODUCT | i SIZES Weatherwood Insulating' Plaster Bui Plain or "Fasnap" 18x43 in. THICKNESS 1 U, * * and 1* in. " j j \PrRv * I SHIP. WT. : PER M SQ. I'T. JOINTS ! 1 for i | 725 lbs. U.m. thickness * . V-Joint Long Edges 1 SPECIAL. ADVANTAGES Fasnap Joint Reinforcement: Rein forcing snaps quickly into place co give horizontal joints additional plaster reinforcement. Weatherwood Asphalt Coated Sheathing 2x8 XL 35 m. : j j 1225 lbs. Tongue and Groove Sized for one man to handle. Ap 1 Long Edges plied horizontally for nailing visi- j j - uiLty- 4 ft. W. X S, 9, 10 or 12 XL Weatherwood Boof Insulation 22x4/ in. Insulating* Rocklath-- Reflection Type Insulating1 Sheetrock-- Reflection Type 16x32 m. 16x4$ in. ! 4 ft. \V. x 6. r. 3, 9, 10, 11 or 12 n. 3$ m. H ,n- ! 1225 Ihs. ' *60 lbs, 1 Vi in. J 725 lbs. 1* m. 1450 lbs. 1 Vc in. 2123 lbs. 2* in. 2300 ibs. *6 in. % in. j 1550 lbs. | 1550 lbs. Vi in. | 2050 lbs. Vi in. in. Vi in. 1050 lbs. 1500 Ibs. 2000 Ibs. Square Square Edge or Onset Round Edge Square Square or Recessed Can be used as structural sheath . ins under all types of frame sid ing, brick veneer or stucco con : strucuons. Excellent insulator because of its | low density. 1 i ; Fireproof; bright meial foil backing provides effective insulator and ; vapor barrier. 1 Fireproof; bright metal foil backing 1 provides eneettve insulator ana I vaPr barrier. 1 Finished Surface Products PRODUCT SIZES i SHIP. WT. THICKNESS I PER M | 1 SQ. FT. Sheetrock Grain 4 ft. W. x 6, 7, i Board*-- 8, 9, 10 :l i Reflection Typ* ; m. j 1500 lbs. | j "Weatherwood Insulating Building Board. 4 ft. \V. x 7, 3, 9. I0e 12 ft. Weatherwood Tile 12x12 in. 12x24 in. 16x16 in. 16x52 m. m. : 580 lbs. in. 1 725 lbs. I* in. j 1450 lbs. IV*** in. ; 2125 lbs. 2* in. j 2300 lbs. VA in. ; 725 lbs. | 1* in. ! 1450 lbs. Weatherwood Finish Flank Weatherwood PanaitU* 12x24t in. !6xJ2t in. 24x431 in. . J j 8. 10. 12 or 16 ; in. \V. x 3. 10 1 or 12 ft. L. J 1X4 ft. 2x4 ft. 2x8 ft. 4X4 ft. 4x8 XL in. : 1250 lbs. j | H "25 lbs. j in. 1250 lbs. These sizes not stocked, therefore subject to delay m snipping. tCan be cross-scored to represent two square tiles. COLORS ; | FINISHES | JOINTS Natural Color Ivory and Gray-Tan j Walnut, } Knotty Pine. I | and Bleached | | Mahogany j Skin and Textured Square Square Bute Joints SPECIAL j ADVANTAGES ' Photographic reproducnon of wood pane:5. ; Finish resists scratching, .'Cuffing; high light f flection. Ivory and Gray-Tan Blend Gray-Tan Blend Ivory Skin and Textured Textured Textured Textured : Ogee j I ; Exclusive USG Blendtex , gray and tan shades : blend readily with most ! interiors. I Ogee > Can be applied without | Edges l regard to stud or joist [ I spacing. Bead and Ogee Long Edges j Canbe applied vertically 1 orhorizontally. ' Ogee 4 Edges Large units make tor i quick installation. Weatherwood Insulating Products --Made oi wood fiber, knitted together into a homogeneous unit by a process which controls strength and insulating value. Meets Federal Specifications. A strong, sound-absorbent insulator. Three color tones, plain and textured finishes. Resists scuffing and marring. Easily sawed and nailed. See pages iorry-eight and torty-nine tor further Weatherwood data. The Conduct:r;tv Rutinn Sheetrock--Fireproof v/allboard made of gypsum with integral metal foil in sulation (see opposite page). Nailed over wood framework to form the finish tor interior walls and ceilings. Will not burn or transmit hign temperatures. Contains nothing to rot or decay. Sheetrock -.vails and ceilings are strong and lasting. See page 32. U'-'ntiirrcc^od products is uppmxintntciy Rocklath--Fireproof lath with integral metal foil insulation. Has tne same prop erties as Sheetrock. Made in two types : plain and perforated. See page 22. if * . n 7* S T O H 0 Weatherwood Insulating Plaster Base (Left) Patented "Fasnap" rein forcement. easily snapped ir.to place, rciniorces plaster over long joints. Weatherwood Asphalt Coated Sheathing (Right) Applied horizontally, one sheet ties seven studs together. Only one size is needed for all jobs. Insulating Rocklath, Reflection Type (Left) Metal foil backing resists inward, passage of radiant heat in summer as a mirror reflects light, and outward movement in winter. Metal foil makes efficient vapor barrier. Insulating Sheetrock Reflection Type (Right) Has same heat reflection qualities as Insulating Rocklath. Extensive tests have shown that the metal toil, which is used on both these products, serves as a vapor barrier to help control the condensation problem. Weatherwood Insulating Board Panels (Left) Produces a finished insu lated wall in ivory or a gray-tan color which harmonizes readily with most interiors. Weatherwood Tile (Right) Available in sizes shown on page 1, the two-tile units pic tured are applied with the speed of one. Interlocked edges permit ap plication to misaligned studs or joists. Pockaging: Weatherwood PI. base: 15 pcs. (90 sq. ft.) per bdl. Asph. Sheathing ; 6 pcs. per bdl. Tile : 8 to 52 pcs. per bdl. Panel tile; 4 to 12 pcs. per bdl. Plank; 12 pcs. per bdl. Building board: 6 pcs. per bdl. Ins. Rocklath: 6 pcs. per bdl. Ins. Sheetrock ; 2 pcs. per bdl. BB012 2046 Ur\S BLANKET INSULATION BED TOP INSULATING WOOL USG RED TOP INSULATING WOOL Red Top Roll Blankets Rolls are recom mended for large areas Red Top Insulating Blankets Mineral wool fibres of great strength and uniformity, clean and free from non-insulating material are felted into light-weight blankets and securely fixed to an efficient asphalt-type vapor barrier. The vapor barrier forms the warm side of a complete paper enclosure, providing proper resistance to the passage of vapor, while a tough, perforated, vapor permeable paper on the cold side prevents the accumulation of any moisture within the blanket. Red Top Insulating blankets are so constructed that the insu lating material is uniform in thickness throughout the length of each roll. They are as thick at the edges as in the center. Flanges at either side create an air space immediately back of the lath and plaster and effectively seal the joint against vapor leakage. Sizes and Thicknesses--Made in three thicknesses: 1 in., medium and thick, in rolls of 125, 75 and 50 sq. ft (net area) respectively. Each size fits stud spacings 16 in. o.c. Also available in Red Top Bats 3 ft. long in the same thicknesses to fit either 16 in. or 24 in. c. to c. spacings. Red Top Bats For smaller areas chan rolls. Sized to fit readily between scuds and accic floor joists Red Top Junior Bats Unwrapped bats of Red Top Wool. Useful where condensa tion is not a problem or has been handled by other means. Also used for badly cut up spaces and comers, "packing" in hard to reach spaces when Red Top Blankets or Bats are used. Sizes and Thicknesses--Red Top Junior Bats are made 10% x 14% x 4 in. and packed in convenient bags containing enough wool for 22 sq. ft of wall surface (16-in. stud spacing) or 20 sq. ft. net area. Heat Resistance Tests on Red Top Insulating Wool made by various laborato ries show a variation of from 24 to .31 B.T.U.'s, per hr., per sq. ft, per degree difference in temperature, averaging .27 B.T.U.'s per inch. Red Top Junior Bats* For thoroughly insulating cut up spaces and corners Light Weight (Low Heat Capacity) Red Top Insulating Wool weighs but 1.5 lbs. per cu. ft Its capacity to hold heat is correspondingly low and it therefore does not retain enough heat to feed heat to the building in the summer, nor is heat wasted in winter in uselessly heating the insulation. Fire Resistant The wool is completely incombustible, withstanding tempera tures of 800-1000 with no more damage than a possible slight sintering of fibres nearest heat Harmless to Health--Odorless Has no properties deleterious to health. Free of dust and odors. There is nothing to attract vermin. Cost Red Top Insulating Wool is competitively priced. Ease of Installation Ease and speed of application are provided for in the design. Rolls are made for large expanses: bats, for smaller, and junior bats, for cut up spaces and corners. Rk'Q. Trr. .e Mark BB012 3047 Walls The following: heat transmission figures have been calculated on the basis of vaiue. recom mended by the 1940 Guide of the American society of Heating and Ventilating Engineers. \ alues are expressed in B.T.U. per hr. sq. ft. per ' F. difference in temperature between the air on the two sides--outside wind velocity 15 m.p.h. TYPICAl--WOOD SHEATHING. 2x4 STUDS, ROCKLATH AND PLASTER Exterior Wood siding Wood shindies Stucco Brick veneer No Insulation .25 .25 .30 .27 Red Top insulating \V ool Blankets Inch Medium: Thick .12 ! .084 .06S .12 | .084 . .068 .13 i .089 . .071 .13 .086 - .070 Ceilings These figures fulfill the same purpose as those above except that they apply to ceilings. Same bases for calculations were used. The only dif ference is that ceiling figures were based on still air both sides. TYPICAL--WOOD JOISTS 2 x c. ROCKLATH AND PLASTER Red Top Insulating No Wool Blankets Insulation Inch IMediuml Thick Without attic j flooring I .61 .17 ! .11 .076 With yellow pinei flooring 1 .28 .13 .087 .066 BB012 204B Roofs These figures fulfill the same purpose as above except that they apply to roofs. Bases for calculations same as used for Walls. TYPICAL--WOOD RAFTERS 2x6. ROCKLATH ANO PLASTER CEILING LOWER SIDE . Type Roof i Red Top insuiattn.g L N Wool Blankets : Insulation Inch iMediuml Thick Wood shingles on i wood strips ! .29 .13 .088 1 .067 Asphalt or rigid j asbestos shinglesj Composition, slate or tiit rooting on wood sheath ing J2 .14 .091 .068 PACKAGING: Red Top insulating -Blankets in continuous rolls completely enclosed in tough corrugated paper. i" Blankets ...................................................... Net area 12Ssq. ft. Medium Blankets ........................................... Net area 75 sq. ft. Thick Blankets ...............................................Net area 50sq.it. Area Insulated (16" Stud spacing)................................ 138 sq. ft. Area Insulated (16" Stud spacing).............................. 82 sq. ft. Area Insulated (16" Stud spacing)............................... 55 sq. ft. Red Top Insulating Bat Blankets in corrugated cases. 1"--26 pieces 15" x 36"................... Net area 97yjsq.it. 1"--26 pieces 23" x 36"................... Netarea 14956 sq. tt. Medium 18 pieces 15" x 36"....................Netarea 67J6sq.it. Medium 18 pieces 23"x36".................... Netarea 10356 sq. ft. Thick 12 pieces 15" x 36"................... Netarea 45 sq. ft. Thick 12 pieces 23" x 36"................... Netarea 69 sq. it. junior Bats 18--15"xll" pieces per paper bag Area Insulated (16" Stud spacing).............................. 107 sq.ft. Area Insulated (24" Stud spacing)............................... 160 sq. ft. Area Insulated (16" Stud spacing).................................. 74 sq.:t Area Insulated (24" Stud spacing)................................... Ill sq.;t Area Insulated (16" Stud spacing).............................. 50sq.fi Area Insulated (24" Stud spacing)............................ ; 72 sq. it Area Insulated uo" Stud spacing)............................ 2!::sq. :: 40 YEARS OF PROGRE55 THROUGH RESEARCH JaS roofing and siding Asphalt: .Singles--Roll Roofing--Fells---Building Papers--Coatings. Asbestos-Cement: Shingles--Siding--Glatex . . MANUFACTURE AND DISTRIBUTION The company operates mills manufacturing roofing felt, asphalt or asbestos-cement roofing and siding materials, or combinations of them at Jersey City, New Jersey; North Tonawanda. New York; Skaneateles Falls, New York; South Bend, Indiana; East Chicago. Indiana; St. Paul, Minnesota, and South Gate. California. Many of these plants have been continuously producing roofing materials for almost 40 years. The United States Gypsum Company has been manufacturing quality roofing for almost 10 years. It is not possible to display all of the colors, types and styles of asphalt roofing in this catalogue since all are not made at every mill. At each mill colors, sizes and shapes either like those shown here or closely approximating them will be found in addition to styles and colors specially made to suit the local demands for materials suitable to the climate and customs in the area each mill serves. Full data on local colors and designs is available from the nearest Sales Office or company repre sentative. use ASPHALT ROOFINC IS MADE OF SELECTED LABORATORY TESTED MATERIALS Asphalt roofing quality cannot be discovered through appear ance or crude tests. Asphalt is a complex material, available irom several sources, each yielding asphalt much alike in appearance but of vastly varying utility. Later processing, likewise, affects the asphalt. Only by exacting laboratory tests and careful mill control, characteristic of USG produc tion methods for 40 years, is it possible to select and process asphalt that maintains the long life, durability and weather proofness demanded by USG roofing standards. Felt made of selected rags is saturated with carefully processed petroleum asphalt as it alone will properly saturate felt. The heavy, higher melting point, coating asphalt must not only be of high quality, but it must be compatible with the saturant, so that one asphalt will not "bleed" into the other and destroy the fine qualities of both. An exclusive L"SG laboratory test prevents the use in our roofing plants of coating asphalts which are incompatible with saturants. Granules for surfacing must be color fast, opaque, uniformly sized, nonporous and, in turn, coated with oil, gum or cement to secure proper bond with the asphalt coating. All elements, whether purchased or manufactured at USG mills, must comply with the high quality standard set for each before they can be used in USG roofing. use THICK BUTT SHINCLES HAVE NEWER. BETTER "MONOLITHIC" DESICN USG Thick Butt shingles are made in the newer way-- not just standard shingles, which have been given an additional coating of asphalt and granules over their first coating to build up bulk, but shingles in which the increased thickness at the butt is secured by additional coating asphalt alone. There is no weakening of the waterproofness or weather resistance of the monolithic asphalt coating. The granules are applied only where needed to produce color and protect the coating asphalt from surface abrasions and the effect of the sun. This exclu sive USG method is more expensive, but USG Thick Butt shingles are competitively priced. This Thick Butt shingle design concentrates weight, strength and particularly the coating asphalt at the point of greatest wear and greatest need. Thick Butt shingles cast deeper shadows, creating rugged textures. The unexposed area of each shingle is, in turn, protected by the extra thickness of the exposed area of the next course. This extra thickness is ail coating--and coating is the life of any shingle--undiluted by granules. Research developed this exclusive design and pro vided the machinery to produce a better Thick Butt shingle with better, more deeply edged graining of the surface. ASBESTOS-CEMENT ROOFINC AND SIDINC USG Asbestos-Cement Shingles and Siding combine two non-inflammable materials (selected high grade asbestos fiber and Portland cement) into a hard, waterproof, wear resisting material of great permanence and beauty. All USG Asbestos-Cement Products are made by the "wet'' process. Each piece is composed of many layers of a plastic mixture of Portland cement and asbestos fiber, which, after they have been assembled, are weided together in gigantic presses, heavier and more powerful than those used to form steel in automobile plants. Finally, they are thoroughly steam cured for several weeks until tests prove that every particle of Portland cement has set and that the materials have reached the correct hardness and rigidity demanded by USG Standards. The wet process produces a shingle or piece of siding, made up of laminations which are welded together permanently. More of the fibers run in one direction than in others, hence the product is slightly stronger in one direction. USG designs them so that this extra directional strength is used not to stiffen the material against handling and erection abuses, hut to make both shingles and siding strongest in the imihiing. In BB012 2049 ROLL ROOFINC: for quickly installed renewals uii existing build ings and iasting weather protection tor industrial, farm and other buildings where maximum economy is desired. Supplied in 36" widths, each roll will cover 100 square feet of roof including all necessary laps. Lap Cement and nails are optionally in cluded in each roll. Manufactured in smooth and corrugated sur faces in talc and mica finish, as well as in a wide range of solid color mineral surfaces: all in various weights to accommodate demands ot exposure and cost. SATURATED FELTS--BUILDINC PAPERS, ETC. Felts saturated with tar or asphalt. House liners. Slaters felt. Building papers. Dead ening felts. Red Rosin sheathing. Asphalt saturated Kraft papers, starrer strips and ridge rolls to match asphalt shingles are available from every mill. ROOF CEMENT: Heavy bodied plastic asphalt tibred with asbestos. Applied with a trowel for patching, pointing ; Hashing chimneys and parapet walls ; resur facing worn composition roofs. ASPHALT ROOF COATING: A heavy, cut back" asphalt for resaturating old composition roofs. Brush applied it is a very useful "renovator-' for coating and renewing valleys and other places where wear is heavy. ASBESTOS FIBER COATING: A "cut back" asphalt to which asbestos fiber has been added. For brush application as a "recoater" over old smooth coated roots that are pitting, checking or cracking. ASPHALT PRIMER: A thin liquid cut back asphalt for priming concrete, gypsum and similar roof decks previous to applying standard roofings. ROLL BRICK SIDING: A serviceable siding with a true reproduction of brick at a roll roofing price. Surfaced with fireresisting mineral granules embedded in a heavy weather-proof base. Packed in easyto-handle half-rolls 43'--6" long x 16" wide including 2)4" selvage edge for ex tra weather protection--enough for 50 sq. ft. of surface area (two rolls to the square). Made in red and buff blends with deeply embossed brick design and black mortar line. OGOe 1000 PACKAGING: ROLL ROOFING: fully protected and wrapped rolls containing 1 square (100 sq. ft.). SATURATED FELTS, building papers, etc., in wrapped rolls and "half rolls" varying from 108 sq. ft to 500 sq. ft. ROOF CEMENT: 48--1 lb. cans; 24--2y2 lb. cans per carton; 12--5 lb. and 6--12 lb. pails per case; and in 25, 50 and 100 lb. pails; 225-250 and 450-500 lb. drums. ' ROOF COATING: Pint cans; 6--1 gal. pails per case; 5, 10, 30, 55 gal. drums. ASBESTOS FIBER COATING; 6--1 gal. pails per case; 5 and 10 gaL pails; 55 gal. drums. ASPHALT PRIMER: 5 and 10 gal. pails; 30 and 55 gal. drums. xj ||i.: .IdJk iLLU-11 ASPHALT SHINGLES 64 RANDOM TAB 36`x tO'-ir exposure ..............................- -3 Headiap ............................... 2"-3" Weight Per Square 255 lbs. Relative Cost*" Y Textured Surface oniy. PACKAGING : 3 Bundies Per Square. Patented. Exposure ............................... -*;j" Headiap ................................. 2" Weight Per Square 167 lbs. Relative Cost** II Also a J-tab design of same size and weight, in either textured or piain surfaces. PACKAGING : 2 Bundles Per Square. 4-IN*! SQUARE BUTT iO*x 36" c-xposure ....................................-! Headiap ....................... .............. 2~ Weight Per Square 10" x 36" 1255" x 36" 210 lbs. 266 lbs. Relative Cost** III PACKAGING: 2 Bundles Per Square. . Side Lap.................................2\i" Weight Per Square 138 lbs. Relative Cost** I PACKAGING: 2 Bundles Per Square 12" Size `Reg. Traae Mare BB012 2051 RELATIVE COSTS Exposure ................. .4" 4" Head Lap .............. Weight Per Square 10" x 36" 12" x36" 1"2 lbs. 215 lbs. Textured or Plain Surface Relative Cost** II PACKAGING: 10'--2 Bundles Per Square. 12'--u Bundles Per Square. THICK BUTT ia`x 36- ni i Exposure ................................... 3" Head Lap................................... 2" ... . . n c , | 210 lbs. or \\ eight Per Square j ,40 lbs. Textured or Plain Surface Relative Cost** III PACKAGING : 3 Bundles Per Square Std. Giant Exposure...................4" 5" Head Lap .................4*4" 6" Weight Per Square 9" x 12*4" 12" x 16" 253 lbs. 325 lbs. Relative Cost** IV PACKAGING: 4 Bundles Per Square. OMT MTta IW ixamftMl Head Lap................................... T Side Lap..................................... 5" Weight Per Square 162 lbs. Furnished with staples tor ap plication. Relative Cost** I-r PACKAGING: 2 Bundles Per Square. **See note paje 11 U O w 40 YEARS OF PROGRESS THROUGH RESEARCH e to Q Q ASBESTOS--CEMENT SIDING AND SHINGLES. GLATEX STAYS CLEAN LIKE A CHINA DISH Never needs paint. Fireproof. Re sists dirt, freezing, thawing, cold and heat. Ordinary asbestos cement products have a grainy, semi-porous body, much like that of an unglazed flower pot. A surface of this character stains easily, holds dust tightly, and is difficult to clean. After years of exposure, painting must be resorted to to provide a fresh, clean surface. GLATEX,* the new asbestos-cement siding, has a baked on mineral glaze, similar to that which con verts an unglazed flower pot into a china dish. Glatex sidings are exceptionally water repellent and of ex tremely low porosity. They do not become dirty as readily but when soiled under difficult exposures are cleaned very' quickly with a damp cloth. Glatex sidings retain their original beauty much longer and can be renewed readily without painting by simple cleaning with soap and water. Glatex sidings are an exclusive product, developed in LTSG Research Labo ratories. ROOFING SHINGLES. No. 100 USG Hexagonal Method Shingles--Smooth surface, uniform thickness. Class B Underwriters' Label. Gray, green, red. black. 16 x 16 x si in- Approximate weight per square: 224 lbs. No. 300 USG Dutch Lap Shingles--Idealized wood grain texture, uniform thickness. Class B Underwriters' Label. Gray, green, black, red. Size 16x 16x A in. Approximate weight per square: 244 lbs. Note: Drawing shows shingles applied with % lap. For Yi lap, apply in same manner, using alternate set of nallholes. *Rcg. Trade Mark i.vVL UNITE STATES gypsum company B B O l2 2 0 3 3 SIDINGS. USG Asbestos Cement Siding offers (1) protec tion against fire from without, (2) protection from the weather, (3) decoration, (4) permanence, and (5) low upkeep for frame buildings. Equally use ful for remodeling existing structures, USG Asbes tos Cement Siding is nailed directly to the wood sheathing, using P-<-in. galvanized nails in the holes provided tor them at the top of each siding unit. If insulation board or Gyplap Sheathing is used. Xailex Fasteners (see below) permit the applica tion of USG Asbestos Cement Siding direct to Weatherwood or Gypiap Sheathinc without need for the usual furring strips. Old wood siding' ' USG Cushion Felt JAMB Asbestos Siding - Jr 5S3 Flashing- New fep Wood TAT -- Mould w ^Asbestos^ Wood Siding Moulding HEAD FINISHING AROUND VINDOVS NAILEX FASTENERS In the past when asbestos cement sidings have been applied to structures sheathed with Weatherwood insulation board of Gvpiap, it has been necessary- to apply furring strips to receive the siding material. Nailex Fasteners (shown at right) permit direct nailing of asbestos cement siding to either insulation board or Gyplap without the use of furring strips. The simple, wedge-like Nailex Fastener is applied to those nails which protrude through the sheathing securely locking them to the construc tion and holding the siding securely. Nailex Fasteners are applied to the nails which do not reach the studs but protrude through the sheathing. They must be used before the interior face of the wall is lathed. Nailex Fasteners fit the 14 gauge. iiti" diameter buttonhead. copper ailov. tinned, annular grooved lij" nails, usually supplied with asbestos siding ior use over wood siding. Nailex .-asteners are set with a light hammer tap on the large end, with a plier as shown, or by manually utilizing their wedge-like action. The siding is fastened more snugly than is possible with care ful nailing to a wood support. Nailex Fasteners are so devised that any pull on the naii head makes the fastener pinch the nail and hold more secureiy. They literally lock the nail to either Weatherwood or Gyplap sheathing. No fur ring strips are necessary. Even though the nail lust misses a stud or joist, by bending it slightly a Nailex Fastener may be effectively applied to secure that naii. Nails which are driven through a joint between two sheathing boards are. likewise, held just as well as though they were nailed through the body of the board. Should a siding unit require replacement after the house has been com pleted. a 2" x yi" tinned. Nailex Fastener copper alloy, toggle :oit is used through the original nail hole to make the repair. The holding action of Naiiex Fasteners is almost identical to that produced by a toggle bolt. They are inexpensive and actually speed construction and reduce its cost. 40 Y$ARS OF PROGRESS THROUGH R USG EXPANDED METALS USES Window Guards Grilles Railings Tree Guards Shelving Lockers Gates Partitions Trellises Baskets Cellar Area Guards Bins Non-Slip Catwalks Low Garden Fencing Furniture ADVANTAGES Econo* Mesh, Regular Expanded Metal Made from a single plate of steel which has been slit and expanded into rigid, non-raveling open-work. Strands and strand intersections, or bonds, are set at a siiarp angle. This gives the product strength and rigidity impossible with wire meshes. The expanding process is a type of cold drawing. Econo Mesh has the properties of cold-drawn steel. Workability--USG Expanded Metals can be cut readily into desired shapes without danger of raveled strands. They may be welded, bent and formed, drawn and flared. When cut in any direction USG Expanded Metals still retain their original Strength. Finishes--May be: painted, lacquered, plated or coated with nickel, chromium, copper, rubber, etc. Appearance--Well-made, regularly spaced pattern. Non raveling. Cannot be pried apart. Smooth (Shelf-X; or non slip and rigid (Expanded Metal). Strength--Cold-drawn steel. No rivets, welds or crimping. Heavy strands irom one piece of metal make strong but light weight grille. METALS Stocked in open hearth and stainless steel. Made to order in copper, brass, aluminum, etc. Shelf-X* flattened Expanded Metal Sheit-X is Econo Mesh which is passed through flattening rolls, turning the strands and intersections into a flat, smooth surface on which objects can stand without tipping and slide without catching. Shelf-X is resilient enough to make it a good seating material. DESIGN SERVICE Solutions for your problems. Attachment devices and methods. Guide to the Selection of USG Expanded Metals SUGGESTED USES \Vt. per Style No. } sq. ft. i (lbs.) Macninej W'inaow j i*arti- j Kurni- [Traystk Guards i Guards Lockers 1 tions 1 ture - Racks * iii ECONO MESH V? n. *18 i .70 ! * i i K in. -16 1 -5* 14 *1 i : * M in. *13 | vn. I0 | .80 1.19 * i1' H in. * 9 I 1.80 i 1 !41 14! ; ; : 1 *-$ in. 10 1 l 4 in- - 9 | 1 U in. .68 l 1.19 .68 ' ` 1 i i 1 SHELF-X '' i *1 i ii ! hi in. -IS | S in. *18 1 1.14 70 : 1 1 i i i H in. *16 1 .87 - , ; H in. 16 i .54 :* M in. *13 i .80 1 in. 1 A ' 31 1 4 ir, -o ! , J 9 jylWITEft,STAT|S PSIIM COMPANY Sq. in. sec. area per ft. of width . >0 .16 - 24 .35 . 53 .23 .J5 .20 34 .20 .25 .16 .24 S>1 35 mond (in.) 1 Sheet size | _ Width j Length Approx. open Wide Lone of diamond)* of diamond) Made u. s. Ga. No. so .37 ,S7 .87 .87 1.S7 1.37 1 37 1 20 2.00 2.00 2.00 2.00 3. 12 3. 12 3.12 4 8c 6 ft. i 8 ft- 63% 4it 6H ft. | ft. 76% 4 fit 6 ft. | 8. 10. 12 ft. 76% 4 fit 6 ft. i 8 ft. 69% 4 & 6 ft. ( 8. 10. 12 ft. 1 68% ( 48c 6 ft.| 8 ft. 1 31% i 4 8c 6 ft. | S. 10. 12 ft. 1 sou% i 4 & 6 ft. t 8 ft. 1 i 18 16 13 13 10 13 10 12 .28 1.06 .50 1.26 .so I 1.26 89 j 2. 12 .89 i 2. 12 1.40 i 5,25 1 40 1 5 4 It. i 3 8c 4 ft. 3 8c 4 ft-1 3 8: 4 ft. i 3 8: 4 ft. i 2 U 4 it. i 3 Sc 4 it. i 8 ft. | 33% | 8 ft. 8 ft. j 60% | | 60% j 8 ft. ! 73% j 8 ft. ! 73% j 8 ft. 31% 8 ft. S`i% 'Reg. Trade Mart: 18 18 J6 16 :j 16 !0 B b o ia 3093 PARTITIONS USG Expanded Metals are used to buiid both portable and permanent partitions. They have ample rigidity and make a good appearance. Panels may be removed and re-installed at will. Thieves cannot readily bend these metals after a small cut. making entry difficult. Econo Mesh, is most frequently used for par titions. However, where appearance is of primary importance, Sheif-X Flattened Expanded Metal is suggested. CATWALKS Strong, non-slip, low cost, light weight, minimum interference with light and ventiiation. Self cleaning. GUARDS USG Expanded Metals, having the properties of cold-drawn steel, present efficient oostruction to entry, while permitting ventilation and entrance of daylight. They, therefore, are recommended for guards for windows, doors, skylights, etc. Since USG Expanded Metals are readily work able, they can be shaped to fit windows which open in various ways. As in the case of partitions, complete acces sories are available to aid in prefabrication. Areaway Guards--For basement windows. Re movable, strong. Minimum interference with light, maximum protection. Catch more leaves and litter. Durable. EQUIPMENT The appearance, strength and workability of Shelf-X adapts it for use in the fabrication of grilles, tables, chairs, display pieces, trellises, per manent plant stands in oriels and orangeries, low garden fencing, evergreen protection, etc. The fact that it is furnished in stainless steel and, on order, in aluminum, copper or other desired metals, gives it added interest to designers. BB013 2056 PACKAGING: Sheif-X in wooden crates of convenient size for handling and storage; pieces of like size and style bundled together. Expanded Metal: In bundles of 3 or 5 sheets according to schedule below. 3 sheets per bundle X" #13: 72" X 100" and 72" x 144" X" #9: All sizes. 1U" #9: 72" X 96", 72" x 120" and 72" x 144" 4 sheets per bundle X" #13: 48" X 120" and 48" x 144" X" #10: 48" x 96" and 72" x 96" 1' 4" #18: All sizes. 1 ><"#9: 48"x96' I 40 TffbARSjQF PROGRESS THRgpGHjRESEAKCH WATER THINNED PAINTS ~ BflTERIOR--EXTERIOR ... .... \v. "W" FLAT-TEXTURE - . - PRIMERS--5PACKUNG COMPOUNDS painters plasters y V;- ' v; :,;r- : xuv y'W : ; USG PAINT PRODUCTS INTERIOR FLAT PAINTS TEXTURE (PLASTIC) PAINTS LIME-LOCKING PRIMERS EXTERIOR MASONRY PAINTS SURFACE PREPARATION MATERIALS LIMEPROOF COLORS USG Paints are essentially "architect's" paints because they are designed to decorate. They supply a wealth of color with clarity and permanence of tone. Because thev "breathe." USG Paints permit residual moisture to leave newly applied plaster. USG Paints may be ap plied much sooner than oil paint without danger to plaster or paint. They dry quickly, creating gloss-less highly light-reflecting surfaces of great beauty. But they are "owner" paints as well. These "new principle" paints cost less to buy and less to apply. Dry ing quid:!}' they speed construction, save labor, save :ime on repaint jobt^Their exceptional hiding power nakes it usually jffiBBte to use but one coat for relecoration where tweSor three coats of older materials yere used. . In decorative cycles they show savings of up to 509c ver older painting routines--and yet provide more sequent decoration, with color changes when they are esired. Water thinned (but not water soluble when they are ry), they avoid the fire hazards of volatile thinners id dryers; likewise objectionable paint odors are not -esent. In each group several paints are supplied for like neral purposes. They van- in price with the service ev perform but not in quality. Texolite by intermixing or reductions of Deep Texolite with white. The economy of paint is best shown by comparing the cost of full maintenance cycles. Such a comparison between Texolite and fiat oil paint is given in the table below. Notice that with Texolite, decoration is more frequent and maintains the work in a fresher condition, with annual color changes if desired, without extra cost. The figures are from the "Price Guide" (Commercial Section) of the Painting Contractors of America and are fully comparable. COMPARATIVE COSTS TEXOLITE 1st Painting 1 coat K-Cemo 1 coat Texolite Stan of 2nd Year 1 coat Texolite Start of 3rd Year 1 coat Texolite Start of 4th Year 1 coat Texolite Per yard (4 Years) Cost per yd. .19 .10 .10 .10 .49 j FLAT OIL PAINT 1 1st Painting 1 coat Primer 2 coats Plat Oil Cost per yd. .33 Start of 2nd Year Wash and Touch Up .11 Start of 3rd Year Wash and Touch Up .11 Start of 4th Year Wash, Size 2 Coats Flat Oil .40 Per yard (4 years) ,95 Full color charts are given on the opposite page. A int selector chart follows on pages 72 and 73. Pracallv any color or shade of color may be produced in Calcuiared (o SI.50 per hour lor painters. Texolite saves 48.5% of fiat oil cost's. LIGHT REFLECTED BY VARIOUS COLORS USED IN DECORATION Figures Indicate Percentage of Light Reflected ite ... Very Pale Tints of: V .,., . in .... .. SI--89 . . 75--80 .. 70--77 .. 6t--72 o\v to ivorv............................. Grav ... Tan ..... Green ... , Blue ........ Yellow .. Strong Tints of: 30--13 Common Wood Finishes: Itark mahogany ............................... ~__ \o WaJnut ................................................ u__ Jg English oak........................................ 15__ 20 Light oak ............................................ 30--35 Natural pine and maple................. 45--52 Medium Tints of: n .. .. .. 49--59 .. 52--00 )\V ... Red ........ Blue ........ Green .. . . Brown .. . Solid Colors: .. 14--20 ^ - 1C . . 7 10 ..511 \ alues based on "Illumination Design Dnir.'' General Electric Company and oilier sources. ED STATES GYPSUM COMPANY BS tE 2 PJ PJ C C UNITED STATES GYPSUM COMPANY STANDARD COLORS AVAILABLE IN USG WATER-THINNED PAINTS TEXOLITE AND TEXOLITE "330" DURACAL CEMENTICO TEXOLITE DEEP COLORS 1 EXTERIOR TEXOLITE BB012 2058 UNITED STATES GYPSUM COMPANY GUIDE TO THE SELECTION OF USG PAINT PRODUCTS USES INTERIOR FLAT FINISHES FOR WALLS AND CEILINGS ! PRODUCT ! CHARACTERISTICS `ver old and new interior walls and ceilings. Not recommended ior use over wood tnm subject to wear, or under permanently damp conditions, or where it uill be subjected to excessive abrasion. TEXOLITE*--WHITE AND TINTS-- modern water-thinned paste paint tor interior wall and ceiling decoration. Provides brighter, more colorful interior decoration that is per manent and inexpensive. Dries in one hour. Covers more area. Does not yellow. High light reflection and excellent hid ing power due to high quality pigment. Easy to apply. No objecnonable paint odor. No fire hazard. No thinner cost. Recoat able. Cuts maintenance costs. . Over new or previously painted walls, ceilings, wallboards. etc., where washability and greater resistance to abrasioo are factors. Used as deep brilliant paint, or tor tinting regular Texolite. casein paints, washable calcimine, and ordinary calcimine. The deep colors can be intermixed in any proportion without danger of color streaking or flotation. Ideal tor display backgrounds. Quickly recoatable and non-bleeding. For decorating interior partitions, walls and ceilings, for more per* manent decoration than ordinary water thinned paints will pro duce. Used over Sheetrock and other gypsum wallboards. and over Weatherwood and other in* julacion wallboards. in addition to painted or unpainted interior plaster surfaces. Used wherever a hot water cal* cimine of high quality is desired. Home, office, store, shop, etc.* interiors. Suitable for use where easy removal is desired. TEXOLITE* "330"--MADE IN OYSTER WHITE AND TINTS--shown on pre vious page. A new washable, waterthinned, interior, flat paint in paste form. TEXOLITE* DEEP COLORS--paint in true brilliant colors bringing new, pleasing color possibilities to the decorating and dis play field. Simple and economical to apply. DURACAL* (A PREMIUM CASEIN POWDER PAINT)--in powder form pre pared for application to walls and ceilings by mixing with water. Packaged in standard colors and white. Colors may be intermixed. KAL* (HOT WATER, MICROFINE CALCIMINE)--provides one of the most economical ways to bring color into interior decoration. Packaged in standard colors and white. As washable as the best grade of flat oil paint. Dries quickly, rugged, stands abrasion well, no paint odor, does not "yellow." Slightly less hiding power than regular Texolite but one coat usually suffices. Offer unlimited color possibilities because of the wide reduction range of true brilliant colors and their intermixes to produce blends. Clarity of vehicle allows color pigments their full bril liance. permanently. Smooth working.' Casein bound. Recoatable. May be applied over surfaces previously painted with oil paints. Can be applied over untreated plaster surfaces with out preliminary sizing. Superior to ordinary water thinned paints but not a substitute for Texolite. Ground exceptionally fine by a special process. Balanced for mula provides easy intermixing of color. Durable. Does not rub oft. Easy to mix and apply. Good coverage. - Wherever a high quality cold water calcimine will meet the requirements of the decorative job. USG* COLD WATER CALCIMINE--a practical, durable, and colorful low cost finish. Permanent, yet easily removed by washing. Conveniently packaged in standard colors and white. Smooth finish. Easily applied. Good coverage. Boiling water not needed. May be mixed with tap water it not too cold. Does not rub off. Balanced formula. Colors may be intermixed to provide . pleasing blends. For use in interiors of factories, warehouses, garages, other indus* trial structures, also farm build* ings. Excellent for coating pipe coverings, More economical than calcimine. USG* INTERIOR COLD WATER PAINT --an economical utility paint for renewing and brightening interior surfaces. Furnished in white only. Starch bound cold water paint, below USG Calcimine in quality. Easily applied and readily washed off when repainting is necessary. Best results when surfaces are prepared according to good paint ing practice. INTERIOR TEXTURE FINISHES As an interior decorative Textur ing material over any dry, solid, clean surface, such as new pias ter. Sheetroclt* other gypsum wallboards. Weatherwood* and other insulating wallboards. Espe cially adapted to rennishing old cracked plaster surfaces. Used to oroduce stone effects, antique eseccs and m stencil work. TEXTONE*--a plastic paint meeting the demand for a dependable, economical, easily applied texture medium capable of satisfying every requirement of modern decoration. First grade plastic paint. Tex tone properly applied forms the most permanent texture body ma terial available. Furnished in white only. Can be integrally tinted with Texolite Deep Colors or USG Limeproof Colors or ap plied white and color supplied by further treatment. came as Textone. | USG TEXTURE PAINT*--a lower priced 1 plastic paint than Textone, used in the same For same purposes as Textone, but provides less coverage. Pro duces excellent textures in both manner. 1 period and modern styles. *Reg. Trade Marks j Acns stoas GUIDE TO THE SELECTION OF USG PAINT PRODUCTS USES Use only over porous masonry surfaces such as cement stucco, cement, cinder block, unglaied day tile% concrete, and similar areas. Not recommended on magnesite stucco surfaces. . EXTERIOR PAINTS PRODUCT CEMENTICO* -- hydraulic cement base paint for bringing new beauty, life and color to porous masonry surfaces. Over exterior masonry surfaces either untreated or previously painted. Ideal for common brick, cement block, Portland cement stucco, unglazed tile. etc. Not recommended for walls which are constantly damp; for such places use Cementico. , ; EXTERIOR TEXOLITE*--A flat, gloss less, paste paint, water-thinned but not water soluble when set; for exterior or masonry surfaces. For periodic exterior surface re* newal of warehouses, factories, fair and exposition buildings, farm buildings, filling stations, stables, fences, etc., and other clean solid surfaces from which paint scale, whitewash, and dirt have been removed. USG* EXTERIOR COLD WATER PAINT--An economical utility paint for periodic painting and renewal of clean, solid, exterior surfaces. CHARACTERISTICS Made of white Portland Cement and other special ingredients to produce baroness, binding quali ties and workability. Unly proved iimeproof colors are used. Weatherproof. Water resistant. Bonds to porous masonry sur faces. Six "masonry" colors (see page 2) and oyster white. A paste paint; contains no Portland ce ment. Lime resistant, water re sistant. will not yellow, and has no paint odor; will not bloom, clear useful colors adaptable to, and common in masonry surfaces. Colors may be intermixed. No: a whitewash. Casein bound paint furnished in white only. Easy working. Quick drying. Does not rub off. Recoatabie. Requires addition of water only before use. For tinting Textone and other water thinned plastic paints, casein paints, calcimine, and ce ment paints. Sometimes used for tinting stuccos and mortars. Blue is not recommended for coloring plasters and mortars. COLORS USG* LIMEPROOF COLORS -- strong, lightproof, limeproof colors of great intensity, requiring only small quantities to secure pleas ing tints. With the exception of blue, all colors are specifically limeproof and lightproof. All finely ground, pure ana strong. Tinted mate rials will be several shades lighter when dry than when in the wet mux. Filling small cracks, sears, slight impenections in piaster, Making Swedish putty. Spotting nau heads. Filling holes, ridges, im perfections in concrete. Filling nail holes, knot holes, cracks, etc., in wood trim. For interior use only. For patching cracks and larger breaks in un painted plaster walls and interior concrete surfaces. For application by broad knife or trowel. Can be decorated with any decorating material. SURFACE PREPARATION PRODUCTS USG* SPACKLING COMPOUND -- used for preparatory treatment of surfaces before painting or decorating, to build up or fill im perfections, and to produce a smooth even surface. ' RED TOP* PATCHING PLASTER -- a piaster scientifically compounded for patching cracks in walls and ceilings easily at negligible expense. Conveniently packaged. Exceptionally fine grind. Grit free when dry. Adaptable to knife or brush application. Can be sanded. Adheres to any prop erly cleaned solid surface. Sets without shrinkage in about 2 hours. Dnes to extreme hard ness. Very white. Non-shrinking. Con tains no Jime. Sets in 1 to 1 hours. Uniform set and quality. Smooth and plastic because of special ingredients. For patching cracks and breaks in plaster and wherever a Painters piaster of Pans is used with either trowel or broad knife. 1 For prepanng these surfaces for painting: painted and patched wails and ceilings, plastered sur faces, interior concrete surfaces. New or old unpainted concrete floors. Fiber, gypsum and msu- lating wallboards. Not recom mended for old painted concrete floors or surfaces which are per manently or periodically damp. RED TOP* PAINTERS PLASTER--Plas ter of Paris for general painters' use. Made from specially selected white gypsum rock. Packaged in 5, 10 and 25 pound bags and in 300 pound barrels. Mixes readily, works easily, but requires more careful manipula tion than Red Top Patching Plaster. Provides hard, dense and strong finish surfaces. Setting time approximately 30 minutes. K-CEMO* PRIMER -- the answer to the A casein and Portland cement formulated pnmer which assures alkali problem in painting. A priming material longer life for decorative mate rials. Produces a hard, lime which "locks in" lime or alkali and makes locking prime coat over which may be applied oil paints, waso- possible more durable paint jobs. Useful for able calcimine, casein and water thinned paints. correction of unequal suction. ' * Reg. Trade Marks. PACKACINC: Paste paints; 12--1 qt., or -t--l gal. cans per carton, 5 gal. or 30 gal. drums singly. Deep color Texolite in cans and drums, as above, plus canons of 6--!/$ pt. tubes, and 12--1/2 pt. cans. Poxi-der Paints, Cal cimine & Patching plasters, in convenient sized packages, bags, and canons and in 100 lb. and 300 to 350 lb. bhls.. varying somewhat with commodity. Limeprooj Colors: Canons of 24 #1 size cans. BBOl 2 2060 40 YEARS OF PROGRESS THROUGH RESEARCH TPbS GYPSUM FLOOR AND ROOF CONSTRUCTION : Ideal roof and floor constructions are: fire proof; light in weight to reduce costs of sup porting framework. They bond well with standard waterproof roof coverings; are heat insulative or may be readily insulated. They should contain nothing to cause deleterious effects on any material they contact; be proof against rot; decay, the common fac tory gases and many of the unusual ones. Their under surfaces should reflect light well; be of good appearance and be capable of quick economical renovation with factory paints such as TexoliteT USG has solved roof and floor problems competitively and successfully, for over 25 years. Millions of square feet of these roofs and floors are in use. They are regularly specified by prominent architectural offices. Their advantages are briefly established on this page. On the opposite page the con structions are tabulated and compared for quick selection. On later pages, each type is described, detailed and fully illustrated. LIGHT WEIGHT HEAT INSULATING Precast gypsum constructions ore light in weight because gypsum is inherently light. The weight of "poured-in-ploce" construc tion is further reduced by the use of light weight aggregates. Gypsum, unlike most fireproofing materials, is an excellent heat insulator. Gypsum roofs are generally amply heat insulative to pre vent condensation under any normal building exposure. ADAPTABLE Readily cast in place or cut to fit (when precast); practically ony structural requirements may be met. LIGHT REFLECTIVE The smooth, white, closely knit gypsum surfaces are well known os efficient reflectors of light; when soiled by time, both color and reflective ability are easily resrored with USG Texolite.0 NAILING BASE HEAT LOST THROUGH VARIOUS GYPSUM CONSTRUCTIONS (In B.t.u. per hr. per sq. ft. per deg. diff. F.) Pyrobar Short Span Tile (3 in. solid)........................................... 49 2Vi in. Sheetrock-Pyrofill*................................................................. 38 2 Vi in. Sheetrock-Pyrofill plus Vi in. Weatherwood................ 24 3 in. Sheetrock-Pyrofill'.......................................................................35 3 in. Weatherwood-Pyrofill* (1 in. board)................................... 19 Corrugated Sheet Iron........................ ,........................................ 1.50 Note: 5-ply roof covering included except on corrugated sheer iron. Gypsum holds nails well. A standard 2-in. galvanized roofing nail driven to 1 '/2-in. penetration resisted removal until a 180 lb. test load was applied. ECONOMICAL Low in first cost; reductions in cost of supports, speed of comple tion and erection economies provide additional savings. INSTALLED QUICKLY Precast constructions are ready for erection when they arrive from the mill. Poured in place constructions set in less than a half hour and may be subjected to full live ioods at that rime. ENGINEERING SERVICE Trained engineers, experienced in all aspects of roof and floor work are availcbie quickly, at short notice, for advice and consul tation without charge -- phone nearest office. LOW MAINTENANCE COST ERECTION Gypsum does not rot, burn, decay, nor rust, nor does it stain other materials. It is vermin-proof. The skilled erection services of USG approved fireproofing con tractors are ovoilable throughout the country. *Reg. Trade Mark united states gypsum company GUIDE TO THE SELECTION USG ROOF AND FLOOR CONSTRUCTIONS OF Size USG GYPSUM PLANK 2 in. x 1 5 in. x 10 ft. 2 in. x 15 in. x 8 ft. 2V2" TONGUE AND GROOVE 214 in. x 1 0 in. x 6 ft. I Average 1 B.T.U. Relative ' Recommended 1 Wt,, Lbs. I Value Cost- ! Uses ; /Sq. Ft. Pages 12 12 i .58 1 i .58 1 1 ! ;1 1 l For floor ond roof j j slabs of 1 ight I : weight, speedy erection j and 77 For floor ond roof j 15 .53 1 1 slabs with close : 7g and 77 beam spacing ; j SHORT SPAN TILE SHEETROCK PYROFILL 3 in. x 12 in. x 30 in. 17 .49 11 1[ 2Vi in. Standard plus V2 in. insulation 11.5 12 .38 tj.24 1 1 11 For light weight, flexible roof decks. J Solid tile has great nail holding power for attaching i ornamental roof coverings ^,, For light weight, low cost, speedily 30 and 81 erected roof slobs WEATHERWOOD PYROFILL** H 3 in. Standard 10.5 .19 ; u 1 For light weight, low cost roof slabs with additional in sulation value 80 and 81 PYROFILL MONOLITHIC PYROFILL EMBEDDED RAIL 3 in. Thick 3 Vl in. Thick 4 in. Thick 3 in. Thick 3 14 in. Thick 4 in. Thick 13 15 !,7 14 16 18 .35 1 .32 II .29 III 1 .35 11 .32 j III .29 IV ' For light weight, . full fireoroof floor and roof slabs. . Speedily erected. 80 and 81 Not adapted to 1 small areas i i 1 For light weight, 1 full fireproof floor and roof slabs. 1 I 80 and 81 Speedily erected j BB012 2062. 5TEEL DECK indicates least expensive; 20 Gauge (Also 22 and 1 8 Gauge) 14 in. Insulation 1 in. Insulation 1 !4 in. Insulation i ; Il iij For light weight, quickly erected, low cost roof 3 .39 : 1 decks, insulorionj 82 and 83 3.5 .25 II should always be 4 .18 III j added.Add insula tion to suit indicates more expensive than "I," etc. ^Furnished with special section steel subpurlins. 75 AO YEARS OF PROGRESS THROUGH RESEARCH (5 USG GYPSUM PLANK For floors and roots where o light weight, fireproof, insulative construc tion is desired. Suitable for all roof loads and floor loads in apart ment*, hotels, schools, etc. Tongued and grooved on four edges, USG Gypsum Plonk forms a continuous structure. ADVANTAGES Light Weight -- USG Gypsum Plank weigh but 12 lbs. per square foot -- half the weight of 2-in. stone concrete. The sate super imposed loads given in the table (right) were established as very conservative by tests of nationally recognized laboratories. Rapidly Installed -- Each "plank" Is laid without mortar and quickly clipped to the supports. The wide, tapered groove and matching tongue fit snug and tight as each unit slips into place without ramming. The deck literally "flows" out aver the steel in an uninterrupted movement. Seam and Purlin Spacing May Vary--The long "planks" cantilever over the supports. Since joints are broken between courses, eoch cantilevered end is supported at either side by a continuous steel beam formed by the metal edging of the adjacent tile. The end joints, likewise, are interlocked. The result is a deck monolithic and continuous in structural effect, which permits variation in the spacing of supporting steel, provided they are within the maximum spacings of the table (right). Saves Labor--Obviously the combination of no mortar, large units and rapid erection cut installation costs to a minimum. Other Advantages--USG Gypsum Plank embodies the advantages inherent in gypsum as outlined on page 74. USG LONG SPAN GYPSUM PLANK 2 in. * IS in. x 10 ft. Construction i Floors ........................... Roofs .............................. Spacing of Steel Supports Up to 5 ft. Up to 7 ft. USG MEDIUM SPAN GYPSUM PLANK 2 in. x IS in. x 8 ft. Safe Superimposed Lood ! 150 lbs. Sq. Ft. ' 75 lbs. Sq. Ft. Floors.............................. ; Up to 3 ft. Roofs .............................. | Up to 4 ft. 1 150 lbs. Sq. Ft. | 75 lbs. Sq. Ft. 2V2-IN. TONGUE AND GROOVE ROOF AND FLOOR TILE Precast gypsum units which are substantially the same design as USG Gypsum Plank except that they do not have steel edging. They are IZi in. thick, 10 in. wide and 6 ft. long and weigh 15 lbs. per sq. ft. Used as a deck for structures where the live load does not exceed I 50 lbs. per square foot, such as apartment houses, hotels, office buildings. Floor joist spocing should not exceed 30 inches. For roof construction joist spacing may be increased to 48-in. centers. Provide an economical construction because of their light weight, flexibility and ease of erection. With a dead load of less than half that of concrete they permit economies in steel design. DESIGN The steel edges of USG Gypsum Plank and the gypsum body are keyed together by closely spaced loops, expanded from the steel edging, which project into the "plank" body as it is cast at the factory. The wide face of each loop is at right angles to the plane of the loop preventing any cleavage planes at that point. Cutting individual units for the ends of courses does nor impair their bond. Tongue and groove are substantial. Groove is wider than end of tongue permitting ready nesting when supporting steel members are not quite on the same plane. The steel edging for each plank is made in two pieces, each en closing one long and one short edge of the plank, with a mitre at the corner. All corners are reinforced with clinched in steel rein forcements. BB012 2063 TYPICAL USG GYPSUM PLANK CONSTRUCTIONS US 5 -- GALVANIZED STEEL EDGING--------SECTION THROUGH PLANK 2" 6" WOOO NAILER FLASHIP EDGING DETAIL CONTINUOUS /angle WOOD NAILER ,, -U.S.G steel SOUND gypsum plank :\ .\ 3"i2"* VANGLE lb p=-- PURLIN y////////A ----- WALL / OVERHANG GABLE DETAIL PARAPET WALL CANT BB012 2064 BOTTOM CHORO OF TRUSS - SKYLIGHT CURB QETAIL USG Growm Plank ara economical and Miy to tract tinea thay rt installed much iika wood. Undartida of USG Gypsum Plank roof* present* a naot, trim oppaaranee and is highly fight reflective. PYROBAR SHORT SPAN ROOF TILE These precast tile units are manufactured to form /igM weight fieot insulative, fireproof roof decks which will fit any type of roof framing. They may he erected in any weather, winter or summer. PYROBAR* SHORT SPAN ROOF TILE Embodying oil of the basic fectures of gypsum as detailed on page 2. Pyrobor Short Span Roof Tile are laid directly on a system of sub purlins which, in turn, are laid across the main roof purlins. Economical for plain flat roofs when tne areas involved are insufficiently large to utilize the economies of the poured in place Pyrofill* constructions (page 801 . Likewise they moke excellent replacements for combustible or corrugated iron decks of existing buildings since the new deck may be laid day by day as the old one is removed. DESIGN Tile are made m solid units reinforced with electrically welded galvanized steel mors designed to afford top and bottom rein forcing. Each tile is 3 x 1 2 x 30 in. in size, weighing 17 lbs. per squore foot. The eeges are grooved, to form a space for grout. The grooves are so shaped that the grout is "keyed" in place producing the effect of a monolithic deck. SUB-PURLINS The need for more efficient and economical sub-purlins than the. standard has been met by USG engineers who hove developed the U5G Bulb Tee Section, with greater strength and bearing surface for the tile than standard tees of equol section area and weight. The easily cut tile will fit difficult roof framing; cut up by hips, volleys, and dormers; of any pitch. Their noteworthy nailing qual ities make them the ideal deck construction for ornamental roofs as ony type of ornamental roof covering may be nailed directly to them. Nailing--Ordinary built-up roof covering is applied in accordance with standard practice. Where slate or ornamental tile roofings ore to be nailed di rectly to the deck, square-cut nails having not less than 1 '/z-in. penetration into the gypsum should be used. When heavy roof ings are to be applied on very steep slopes, they should be fastened by bolting through the slab or noiled to wood grounds which are, in turn, secured directly to the roof deck. Because of the great expansion of sheet metal, this type of roofing requires thoroughly rigid fastening and the metal clears used for such purpose should be spaced not over 8 in. on centers and secured with two nails each. ] TEE SI2ES AND ALLOWABLE SPANS ________________________________________________________________ Based on 50 lbs. per Sq. Ft. Total Roof Load Tees Spaced 2 ft. 612 in. C. to C. M = l/IOWL. Size of Tee Weight per Foot No. 213 USG 2.77 lb. 8ulb Tee Allowable Span 13,000 lbs. per Sg. In. Stress 7 ft. 5 in. 20,000 lbs. j per Sq. In. Stress j 7 ft. 10 in. 21/2 in. x 2 y2 in. 5.5 lbs. 2 Vi in- * 3 in. j 6.1 lbs. 1 3 in. x 3 in. 1 6.7 lbs. 1 7 ft. 8 in. 9 ft. 2 in. 9 ft. 4 in. ; 9 ft. i in. l : 9 ft. S in. j j 9 ft. 10 in. Wt. of Tees lbs. per Sq. Ft. of Roof 1.08 2. i 5 2.4 2.61 X TYPICAL PYROBAR ROOF TILE CONSTRUCTIONS DB012 2066 79 being installed here on a long, wide surface. Pyrobor Roof Tile. 40 YEAR5 OF PROGRESS THROUGH RESEARCH VS PYROFILL ROOF DECKS Pyrofill.* o quick seffing, light weight concrete, mode of gypsum stucco, wood fibre end woter. /s poured ore/- o continuous. electrically welded. go/ron/ied itee/ fabric onto either o fireproof Sfieefrock form or. w/ierr additional insulation is required, onto forms mode of sound absorbent, /nio/oting ^V'eoffierwood. Either form becomes o permoeenf port of foe deck. ADVANTAGES TYPES OF PYROFILL CONSTRUCTION Sheetrock-Pyrofill--Undersurface is Sheetrock. fireproof gypsum bocrd, 32 in. wide, in iengths equal to purlin spacing, so that end joints occur over main purlins. Steel sub-purlins of light rails or tee sections are laid at right angles and clipped or welded to main purlins and spaced approximately 32 Vz in. on centers. Pyrofill construction may be used over light steel beams or bar joists without sub-purlins if steel spacing does nor exceed 36 in. The resulting constructions ore light weight (see toble below), heat insulating -- reducing condensation difficulties; exceptionally strong and durable. The upper surfaces are without joints. The under surfaces present a pleasing panel design. These roof constructions offer maximum economies where large areas of deck must be erected rapidly and roof pitches do not exceed 45. On roofs of greater pitch back forming may be nec essary. Sheetrock and Weatherwood ore described on pages 48 and 53. Weatherwood-Pyrofill^--'rlere, I " Weatherwood, a light weight in sulating fibre board, is used for the permanent form. Not as light reflective as Sheetrock, it provides additional insulation (see table page 74) and approximately .45 sound absorption units per square foot of surface. Other Typej--PYROFILL MONOLITHIC CONSTRUCTION differs from the foregoing in that load is carried entirely by small steel wire cables closely spaced, and anchored at both ends by bent strap iron. Temporary wooden forms ore used. Forms may also be built around beams and girders to provide monolithic, ireproofing for these members at the same time. CURBS. WALLS, ETC. Usuolly constructed of pre-cost gypsum tile. They may be also poured in place using the Sheetrock-Pyrofill or WeatherwoodPyrofill construction, if desired. PYROFILL EMBEDDED RAIL CONSTRUCTION is similar to Sheetrock-Pyrofill in that standard roil sub-purlins span the pur lins, over which fabric is laid. Removable wooden forms ore hung not less than 3/i in. below too of purlins. Thus roils ore embedded m the Pyrofill and there is an all gypsum under-surface. SUB-PURLIN SIZES AND WEIGHTS OF SLABS Sub-Puriins Spaced 32V2" Total Load -- 45 Lbs. per Sq. Ft. M = 1/10 WL i I Sire of Sub-Purlin j (Weight per Yard) Allowable Span 18,000 lbs. per sa. in. Sub-Purlin Stress , 20,000 lbs. ; oer sq. in. 1 Sub-Purlin : Stress ! No. 218 USG 8.3-lb. Bulb Tec! T-l" ! S'-O" Weight of ' Weight of Slab including Sub Purlins Sub-Purlins m lbs. Sheetrock Pyrofill Weatherwood Pyrofill . per sa. ft. . of Roof Minimum Slab i Weight in lbs Min. Slab Thickness*6 Thickness* , per sa. ft. r* 3d. 1.02 ' 2'.r 11.5 3" Wt. Der sq. ft. in. lbs. 1" Bd. 10.3 12-lb. Roil 8'-i r* 9`-3" 1.3 2 Vi" 12.0 3*' II.0 1 6-lb. Rail 20-Ib. Rail i r-2" !3'-3" : i l'-6" 1 13'-8" 2 3.5 2 Vi" : 3" 12.3 13.0 3" 3" n.5 12.0 . 66Total slab thickness including Sheetrock or Wea therwood; minimum thickness of Pyrofill 2 in. *Rcg. Trade Mark Oatranned ,,w| fabric i< la id aver permanent Sheetrock or Weatherwood form. TYPICAL PYROFILL CONSTRUCTIONS pPYROFILL POURED SLAB--j 1 ELECTRICALLY WELDED GALVANIZED STEEL REINFORCING FABRIC OF No. 12 LONGITUDINAL WIRES 4*-0` S No. 14 TRANSVERSE WIRES 8"o.C-- | No. 4 STANDARD CLIP j 1----- '/{ SHEETROCK ROOF COVERING PYROFILL POURED SLAB BB012 2068 CURB ANO EAVE CONSTRUCTION FOR MONITOR 1-TRUSS -j L, ; . I ... - \ / SAWTOOTH GUTTER CONSTRUCTION Yroflll construction it adaptable to any typo of stool framutq 0r ruis construction. Underside of Sheetroek Pyroflll roof, illustrating the high light re flection quality of this construction. 40 YEARS OF PROGRESS THROUGH RESEARCHir ^ STEEL ROOF DECKS Light weight, preformed, interlocking, galvanized or pre*painted, copper beoring steel units--6 in., 12 in., 18 in. (standard) wide, are clipped directly to the steel framing and covered with Weatherwood Roof Insulation. ADVANTAGES High Load Carrying Capacity---- Permits wide spacing of purlins re ducing the amount of structural steel needed. Added strength and rigidity in the deck plates are provided by stiffening beads between the reinforcing ribs. Long lengths permit continuity over purlins, reducing bending moments, increasing sofe loads--see table below, at right. Rapid-Erection--Deck plates, 1 8 inches wide, are of convenient size for easy handling. Reinforcing ribs are nested at end laps with minimum effort. Non-piercing attachment clips further facilitate erection. Plates may be welded or clipped to purlins. DESIGN Deck plates (standard width 18 in.) in lengths from 4 ft. 0 in. to 25 ft. 0 in. (see table this page) are rolled from 22 go., 20 ga., or 18 ga. copper bearing steel and weigh 2.0 lbs., 2.4 lbs., and 3.2 lbs. per square foot respectively. The exclusive rolling process eliminates internal stresses in the plates, reducing the possibility of cracks, ruptures, etc. The design makes ample provision for expansion ond contraction. The combination of greot strength and extreme lightness is se cured through the use of deep (1 '/2-in.) ribs as the "stem" of a "T" beam design, in which the flanges are reinforced by exclusive stiffening beads. The ribs are spaced 6 in. on centers and narrowed slightly at one end to make them nest snugly with those of the next unit. Sides of the deck plates interlock. There is a depending full straight flange on one side of each plate and a channel flange on the other side, into which the straight flange of the adjacent plate fits. Painting--except when made of galvanized steel, all plates are painted a semi-gloss light gray to provide good light reflection and further protect' the steel against corrosion. INSULATION The application of insulation over steel roof decks is recom mended. Not only will the cost of heating equipment and the amount of fuel required be less than in an uninsulated building, but the insulation will tend to control condensation, thereby pro tecting mareriois, machinery and the deck itseif. On steep slopes the RD-4 intermediate interlocking clip, ex clusive USG feature, is used to secure the insulation. Any standard composition roofing may be applied over the Weatherwood Insula tion Board. Thermal Conduciirify of Steel Deck--In S.t.u. per hour per square foot per degree difference temperature is given in the table below. The calculations include the insulation effect of five ply roofing. Derailed information on Weatherwood is provided on page 48. USG Steel Deck--No insulation..........................................................0.95 USG Steel Deck--Weatherwood Vi in. Insulation Board. . . .0.39 USG Steel Deck--Weatherwood 1 in. Insulation Board........... 0.25 USG Steel Deck--Weatherwood 1 Vi in. Insulation Board . . . 0.1 8 SAFE LIVE LOADS IN LBS PER SQUARE FOOT Bend ing 'Gauge f ment i Purlin Spacing 4'-O'* 4'-6"' 5'-0" 5'-6-' 6'-0" 6'-6' 7--0'- 7'-6' 8'-0' WL ,, 3 33 ; 66 | 33 44 I 22 wu !i 10 105 ! 84 I 67 56 | 46 39 WL | : 1 3 , 31 67 | 56 43 41 ; 20 wl | 1 j 10 ! j 102, 35 i 71 61 52 j 44 I 38 WL j i i 18 t 3 ; i- WL | 10 ! | j 71 60 52 I 45 39 90 76 i 66 ; 57 1 50 BB012 206? y TYPICAL STEEL DECK CONSTRUCTIONS BB012 2070 ThV*!"*** h'9h ,i,ht r,W,ction Wty of USG Steel 0eck Plates. Auttm Company, Engineers & Builders. Studeboker Aircraft Plant, South Bend Ind. Giffels & Vallet, Architects, Detroit. Mich. > YEARS "OF PROGRESS THROUGH RESEARCH WHERE TO USE SOUND ABSORBENTS Structure Business buildings Schools Where Corridor ceilings j Ceilings of offices 1 Ceilings of stores, shoos Corridor ceilings Classrooms Swimming pools Auditoriums Libraries Gymnasiums Hotels, Clubs, Restaurants, etc. Corridor ceilings Public rooms, boll rooms Dining rooms Churches Auditoriums Sundoy School rooms Lobbies, corridors Auditoriums. Soorrs Arenos, Theaters Ceilings Lobbies Ceilings, wads Lobby ceilings Hosoitals | Corridor ceilings Wards, diet kitchens j Lobbies, delivery rooms 1 Nurseries Factories i Main room in noisy processes ! Test rooms 1 Infirmaries ! Shop offices . Why Stops "speoking tube" effect of*corndors Reduces noise eve( and clerical errors Lends dignity and increases soles Ends distraction from corridor noise ona noise from other rooms Reduces noise level and betters speech oudition Reduces noise level Corrects reverperation time, creates better oudition for speech and music Maintains Quiet Maintains Quiet Quiet for guest rooms Quiet. Setter audition for speech and music Quiet Good acoustics for speech and music Good audition. Quiet Quiet Controls reverberation, produces good hearing Quiet Good acoustics for speech, music and "talkies" Quiet Prevents noise travel through corridors to annoy patients Quiet Quiet Quiet Better working conditions, less accidents Quiet Quiet Quiet WHEN YOU NEED ENGINEERING ASSISTANCE USG Acousficpl Engineers and those of USG District Sound Con trol Contractors are quickly available; their services ore free. Their advice, if sought before plons ore completed, will effect maximum economy and acoustic excellence. Since USG manu factures all types of sound absorptive materials, their odvice in selection of the best types for a specific purpose is based on experience and good acoustical practice and not biased by com mercial necessity. They are also available for the proper solu tion of acoustical difficulties in existing buildings. See list on back cover. l> M O T I F*D ACOUSTON E Motif'd* Acoustone is standard Acoustone with a permanent, in tegral decoration which produces architecturally correct ceiling patterns in wide variety of type, motif and scale. The ceiling designs may be composed entirely of tile in one pattern or of tile in two complementary patterns, used in blocks of four. Slightly more expensive than Acoustone. Special designs by archi tects wiil be executed to order. Typical tiles are shown here and on the opposite page with the ceiling pattern besioe the respec tive tile. All of the acoustical values, thicknesses, etc., paintability and fireproofness of regular Acoustone (see page 86) are pre served in Motif'd Acoustone. The patterns are produced by etching parallel lines on the tile in either one direction or two directions at right angles. t t H r /n s* Note Serrated Edge Easy to Apply Design 5.........................................Tile and Pattern Design 10-RL ........ Tile and Pattern UNITED STATES GYPSUM COMPANY Design 11-RL Tile and Pattern GUIDE TO THE SELECTION OF USG SOUND CONTROL MATERIALS Material ACOUSTONE AND MOTIF'D ACOUSTONE PERFATONE 9UIETONE SABINITE Typ. Thickness in. Mineral ^ Wool Fibre ; V Tile Metal Facing; Absorbent Wool Pad tt in. rf in. if in. 2 V2 in. Standard 2Vi in. 50-50"! Wood " Fibre Tile 1'2 in. 1 in. Acoustical Plaster Vi in. Type F 3.4 in. Type F V2 In. Type M 3A in. Type M V2 in. Type 38 Reduction Rh?;^.00* Coefficient Ra,,n9 | Incom60 | bustible Incom .65 bustible .70 Incom bustible .75 Incom bustible Incom .85 bustible Incom .65 bustible .55 Com bustible Com .75 bustible Incom .50 bustible .60 Incom bustible Incom .55 bustible .65 .50 Incom bustible Incom bustible aW,*T i Cost* Poacs Good j Good | V 86 and 87 Good Good VI 86 and 37 Good Good VII 86 and 87 1 Good | Good 1 Good Good | VIII IX 86 and 87 86 and 87 Good ---------------- 1 Good VII 86 and 87 Fair Fair 111 88 and 89 Fair Fair IV 88 and 89 Fair Fair 1 88 and 89 Fair Fair II 88 and 89 Fair Fair 1 88 and 89 Fair Fair 1! li Fair Fair j || 88 and 89 88 and 89 6 indicates least expensive; "IT* indicates more expensive than "I," etc. 00 Properties of Motif*d Acoustone are the same as for Acoustone. f Half of the tile are imperforated and without pads. The other half are standard. BB012 2072 17-RL............................ Tile and Pattern Design 13-RL............................ Tile and Pattern 40 YEARS OF PROGRESS THROUGH RESEARCH; v5$ P E R F A T O' N E JIHITtllSTATiS GTP5UM COMPANY i i Made of processed mineral filaments, Acoustone is a sound ab sorbent tile, with either a '/s-in. bevel or with plain edges so accurately formed that loints between tiles are scarcely discernible. Acousrone," then, may be unobtrusively included in a decorative scheme or used to obtain decorative patterns. ADVANTAGES Acoustone will not burn nor support combustion. Unpointed, white Acousrone reflects 70% of light striking it--mill-painted, 83 b. Moy be installed in connection with recessed fluorescent lighting. Repeated painting does not lessen its sound absorption. Unpointed tile ore easily cleaned with a vacuum cleaner. Acoustone installa tions are as permanent as the building. TEXTURE Resembles Travertine marble. No two rile are exactly alike in tex ture, since the texture is a concomitcnt of the manufacturing process and is not secured by moulding or stamping. COLORS White, ivory and cream, integrally tinted throughout the entire tile substance. Other special colors are obtained by field painting. Mill painted Acoustone in white or ivory are available. SIZES Tiles are regularly made in I 2 x I 2-in., 6 x I 2-in. and 9 X 1 8-in. sizes, in '/is-in., "/14-in., l3/u-in. and 1 Vl 6-in. thicknesses. Acoustone, Stouffor'i Restaurant 42nd Street at Perk Avenue, New York City, N. Y. In Perfatone* a perforated metal tile conceals a sound absorbent pad. This sound absorbent pad of mineral wool, manufactured to exacting standards designed to maintain published absorption coefficients, is completely enclosed in a flameproof membrane which keeps dirt and dust out of the absorbent. Tile edges are beveled and returned vertically to be held securely by special tee runners. Perforations, comprising only 14% of the surface, are small enough to blend into the tile coloration. Surface finish is baked enamel. ADVANTAGES The metal units and mineral wool pads ere incombustible. Pad wrappings are flameproofed. The enameled metal surface may be washed repeatedly or repainted many times, without affecting the sound absorbing qualities. The enamel finish has high light reflec tive properties. Perfatone may be oaapted to recessed fluorescent lighting installations. COLORS Ivory and white. SIZES Units are 12 x 24-in. with a center groove which gives the effect of 12 x l 2-<n. units. Ptriaboard and Perfabestos--When sound absorbing moterials ore to be exposed to severe abrasion, Perfcboard (perforated hardboard) or Perfabestos (perforated asbestos board), are recommended for their wear-resisting qualities. These are attached to furring strips and backed with sound-absorbing pads. Ri'y. Traac Man; Perfatone combines with fluorescent lighting. Prudential Life Insurance Co.. Richmond. Vo. Architect: Moreellus Wright tr Sons, Richmond, Va. 40 YEARS OF PROGRESS THROUGH RESEARCH 80012 2074 i i ^9 U I E T O N E ! .ES3S5?k3Ssss- . - ,,\V . >*. ^y: *:z - ^'5r<v; -iifc.-:^i->*. <^f. jrVr- 7. Applied with plastic cement directly to any clean, level surface. ' OUoS S A B IN I T E 38 Applied with ordinary plasterers' tools like any standard plaster finish. .: . . UNITED STATES GYPSUM COMPANY economicol, decorative wood fibre tile, made by a unit felting proc ess which results in a tile of high acoustical voiue. It should not be confused with wood fibre tile used far thermal insulation. Surface is free from puncturing and other surface oddities not uncommon in aec-ineol materials. Colors ground in oil or japon, reduced with r- nerai spirits, may be sprayed on Quietone.' advantages Inexpensive opplicotion ond low material cost recommend Quietone for economical installations. It classes among the high efficiency sound absorbents, having a high uniform absorption from normal voice frequencies up through the higher pitched noise frequencies. TEXTURES AND COLORS Srondcrd textures in sanded or brushed surfaces. The former is light ivory and the latter, light buff. Either texture may be mill tinted in white or the following pastel shades: rose, cream, blue, buff and green. SIZES Quietone Acousticol Tile units are 12 x 12-in., and are made both Vi and 1 -in. thick. Quietone ceiling. Ford Motor Co. Exhibit, 1940 San Francisco World's Fair. Sabinite* Acoustical Plaster combines the features of standard piaster finish with very good sound absorbing qualities. It is a mixture of light weight aggregate, gypsum plaster or Portland cement, and special ingredients, proportioned to produce a sound aosorbent structure when applied to brown coat plaster. ADVANTAGES In new construction Sobinite provides full acoustical correction at much lower cost than is entailed when sound absorbents are applied in completed structures. Sabimfe is economical. It is mixed in the mortar box with water only and ODplied with ordinary plastering rools. Application to vari ous thicknesses obtoins desired degrees of acoustical correction. Sabmite is tinted or spray painted after application without toss efficiency. It is sanitory and vermin-proof. VARIETIES There ore three vorieties: Sqbinite F; M; qnd 38, F ond M ore used over gypsum plaster bases; Sobinite 38, over Portland cement or fiental Exterior Stucco bases in high humidity environments. mite M, has higher noise absorption characteristics and a finer texture. texture Similar to sond floor finish. COLORS Ecru, ivory, cream, buff, white. 'Rrg. Trade Hark ' Sobinite coiling, lobby of Horshoy Chocolate Corfk, Honhoy, Pa. Architect: Paul Witmer, Horthoy, Pa. 89 BB012 2076 UNITED STATES GYPSUM COMPANY 300 West Adams Street Chicago, Illinois Sales Offices Albany, N. Y................... 1106 National Saving! Bank Bldg. Atlanta, Ga.. .........................................1726 Candler Bldg, Baltimore, Md.......................................... Court Square Bldg. Birmingham, Ala......................................... 1203 Comer Bldg. Boiton, Man............ ..................................505 Statler Bldg. Buffalo, N. Y........................................... 1116 Rand Bldg. Charlotte, N. C............................... 1013 Liberty Life Bldg. Cincinnati, Ohio....................................... 1117 Carew Tower Cleveland, Ohio......................................... 627 . Hanna Bldg. Dallai, Ten.......................................................P. O. Box 896 Danvar, Colo..............................836 Continental Oil Bldg. Detroit, Mich....................................... 7310 Woodward Ave. Houston, Tax.....................................2030 Commerce Bldg. ladianapoiit, Ind.........1015 Architect*' and Builder*' Bldg. Kansas City, Mo............................. 4638 Mill Creek Pkway. La* Angel**, Calif................................. B07 Architect* Bldg. Milwaukee, Wit.......................(At Mill) 439 W. Oregon St. Minneapolis. Minn................................ 2510 Foshay Tower New York, N. Y.....................................9 Rockefeller Plasa Omaha, Nab....................312 Woodman of the World Bldg. Philadelphia, Pa..........................................1616 Walnut St. .Pittsburgh, Pa............................. 190S Commonwealth Bldg. Portland, Ora...........................................302 Spalding Bldg. St. Louis, Ada.........................................8032 Forsyth Bird. Salt Lake City, Utah....................................400 Dooly Bldg. San Francisco, Calif................................. 2S01 Harrison St. Seattle. Wash...............................1131 Dexter Horton Bldg. Washington, D. C............................. 1122 Investment Bldg. Samson Plaster Board Company Salas Agents for United States Gypsum Company Crosby Building, Buffalo, N. Y. BB012 2077