Document VG2nww9Vkqo6XQEyyg18gxB1g

BB018 1464 historical file ___________________________________________________fj/' , ____7ZA__1___ /7___r_T__P______ - 1 1 J J t ' S * t t . it... JV 0. / cv. o r.'fc ft ...LI'..YZ................ DG NOT DESTROY A Caialoa oJ, BUILDING MATERIALS MaMuJactuSied btf, UNITED STATES GYPSUM COMPANY AncUUectl' ZdUiofi REPRINTED FROM SWEET'S CATALOG FILE WITH SOME ADDITIONAL MATTER RB-I Copyright 1941, United States Gypsum Company 25M May, 1941. Printed in U.S.A. a oea 00 o o vs INDEX O^ A B C D E F G I K L M Acoustical Materials and Services............................. ................... Acoustone..................................................................................... . Advantages of Gypsum in Building Construction...................... American Standards Specifications for Lathing and Plastering. Aridize Moulding Plaster.............................................................. Asbestos-Cement Roofing and Siding........................................ Asphalt Roofing............................................................................ Assemblies (Walls, Partitions and Ceilings), Index to............. Basecoats (Plaster)...................................................................... Beam and Column Fireproofing.................................................... Brick Mortar................................................................................. Bridjoint System of Applying Rocklath...................................... Calcimine....................................................................................... Ceiling Assemblies..................................,................................... Cementico (Masonry Paint)........................................................ Cement Plaster............................................................................... Cold Water Paints and Calmimine............................................... Colors--Limeproof....................................................................... Column Fireproofing...................................................................... Concrete--Lime for...................................................................... Covering Capacity--Oriental Stucco........................................... Covering Capacities of Plasters.................................................... Duracal Paint................................................................................. Expanded Metals.......................................................................... Exterior Wall Assemblies--Inner Face (Masonry).................. Exterior Wall Assemblies--Inner Face (Wood Studs)............. Exterior Wall Assemblies--Outer Face Masonry--Wood Studs Finishing Lime............................................................................... Finishing Plaster............................................................................ Fireproofing, Pyrobar Gypsum...................................................... Fireproof Ceiling Assemblies........................................................ Fireproof Partition Assemblies...................................................... Flat Paint........................................................................................ Floor Construction........................................................................ Freflote Method of Applying Rocklath......................................... Freflote Bridjoint Method............................................................. Furniture, Expanded Metal in.................................................... Gauging Plaster............................................................................ Grain Board, Sheetrock................................................................. Guide for Selection of Paint Products...................................... for Selection of Partitions ............................................. for Selection of Roof Decks........................................... for Selection of Sound Control Materials.................... Gyplap Sheathing......................................................................... Gypsum Plank (USG) ................................................................. Gypsum Plasters............................................................................ Gypsum--The Source of Many Utilities........................................ Index to Wall, Partition and Ceiling Assemblies...................... Insulating Rocklath........................................................................ Insulating Wool, Red Top.............................................................. Insulation, Structural................................................................... Insulation, Weatherwood............................................................. Kal (Kalsomine) ........................................................................... Keene's Cement.............................................................................. Limeproof Colors.......................................................................... Lime, Finishing.............................................................................. . Lime, Masons................................................................................... Machine Guards............................................................................ Masonry Mortar.............................................................................. Masonry Paint.............................................................................. . Mason's Lime................................................................................... Metal, Expanded...................... ....................................................... Metal Lath....................................................................................... Moulding Plaster............................................................................ PAGE NO. 66 68 2 22 21 48 46 3 20 38 40 13 54 6 52, 55 20 54 55 38 40 28 20 52, 54 50 10 11 21 21 38 7 5 52 56 13 13 50 21 34 54 3 57 67 31 58 20 2 3 12, 42 44 42 32, 42 54 21 55 21 40 50 40 52, 55 40 50 14 21 B B O IO 1 4 6 a a vl PAGE NO. Oriental Interior Finish......................................................................................................................... Oriental Stucco....................................................................................................................................... 21 28 Paint...................................................... Painter's Plaster.................................................................................................................................... Partition Assemblies, Interior.............. Partitions, Expanded Steel..................................................................................................................... Perfatone........................................................................................................................................ . Patching Plaster.................................................................................................................................... Plank, Gypsum...................................................................................................................................... Plank, Weatherwood........................................................................................................................... Plaster, Finishing................................................................................................................................. Gypsum .................................................................................................................................. Patching.................................................................................................................................. Prepared Plaster.................................................................................................................................... Primer (K-Cemo)................................................................................................................................ Pulp Plaster (Wood Fibre)................................................................................................................... Pyrobar Partition, Fireproofing and Furring Tile............................................................................... Pyrobar Roof Tile.................................................................................................................................. Pyrofill Roof Deck................................................................................................................................ 52 55 4 50 68 55 58 32, 42 21 20 55 20 55 20 38 60 62 Quietone ............................................................................................................................................... 20 Reflective Insulation.............................................................................................................................. Research and Control........................................................................................................................... Resilient Plastering System................................................................................................................... Rocklath................................................................................................................................................. Roof Decks............................................................................................................................................. Guide for Selection....................................................................................................................... Roofing, Asbestos Cement.................................................................................................................... 42 2 16 12 56 57 48 Sabinite Acoustical Plaster.................................................................................................................. Sanded Plaster (Prepared) .................................................................................................................. Sand (Specification)............................................................................................................................. Sheathing, Gyplap................................................................................................................................ Weatherwood.................................................................................................................... Sheetrock Grain Board ....................................................................................................................... Wallboard ........................................................................................................................... Tile Board........................................................................................................................... Shingles--Asbestos Cement................................................................................................................ Shingles--Asphalt ................................................................................................................................ Siding, Asbestos Cement....................................................................................................................... Sound Control Service........................................................................................................................... Spackling Compound............................................................................................................................. Specifications--Lathing and Plastering.............................................................................................. Sand ........................................................................................................................... Steel Partitions...................................................................................................................................... Steel Roof Decks.................................................................................................................................... Structural Insulation............................................................................................................................. Stucco, Exterior.................................................................................................................................... 70 20 27 31 42 34 30 37 48 46 48 66 55 22 27 50 64 42 28 Texolite................................................................................................................................................. Textone................................................................................................................................................. Texture Paint......................................................................................................................................... Tile Board--Sheetrock........................................................................................................................ Weatherwood Hardboard.............................................................................................. Tile--Weatherwood............................................................................................................................. Trussteel Studs...................................................................................................................................... 52 54 54 37 36 32, 42 18 Wallboards--Sheetrock ....................................................................................................................... Grain Board.................................................................................................................... Tile Board....................................................................................................................... Weatherwood................................................................................................................ Weatherwood Hardboard.............................................................................................. Weatherwood--Hardboard.................................................................................................................. Plaster Base................................................................................................................ Sheathing .................................................................................................................. Tile and Plank............................................................................................................ Wall Plasters......................................................................................................................................... Window Guards.................................................................................................................................... Wood Fibre Plasters.............................................................................................................................. Wool, Insulating iRed Top)................................................................................................................ 30 34 37 32 36 36 42 42 32, 42 20 50 20 44 BBQ18 1468 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. Wh ich 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 successfully 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. . , 1 2. Which possesses a controllable set -- RESEARCH AND CONTROL from one minute to "hours." With its production predicated on the maxi 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. 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, 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. was consolidated and enlarged in Chicago in 1927. It is housed in a special building providing 20,000 square feet of laboratories and staffed by over 50 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 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. 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 & 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. specifications of the laboratory for the production of every company product is exercised. Construction innovations, developed at the laboratories from Gypsum, utilizing these Jr-* 11. Which bonds to itself, and to any type time tested structural assets, are likewise of lath used for plastering -- practically time-tested, and though new, find ready monolithic on Rocklath. acceptance. n tU N IT ED !STAT.E S `GYPSUM .COMPANY i 4 and 5 6 and 7 8-11 'V-,`i.,V f RQCKEATHI % -.}< o-v*;!?;> -r' : ?' ` METAIi LATH* 12 and 13 Hand 15 1 RESILIENT PLASTERING SYSTEMS* t'.-- [ TRUS&TEEILSTUDS* l ... .. ........ ........ r'r r' .... .......... | GYPSUM* PLASTERS! I AMERICAN* STANDARDS I SPECIFICATIONS! K, CoartiytAarlcamStaadard$tAuoclailo** 1 ORIENTAL STUCCOS ANDI I ORIENTAL INTERIOR FINISH* `.........;v':-7' "T; tWALLBOTARDSt j^GYPEAQP SHEAXHINGpr 16 and 17 18 and 19 20 and 21 22-27 28 and 29 30 31 In the following pages there are tables of material assemblies which produce a wide variety of partitions, ceilings and exterior walls, with relative costs (See notes Page 5) and data by which architects can quickly select constructions suitable for any building or requirement. The sketch in the left hand column describes the con struction and lists the pages in this catalog where each element is described in greater detail. For your convenience in specifying, each assembly has a "Type Number." Add to this the "Type Number" of the plaster and finish (if required) which will be found with the description of each plaster and finish on Pages 20 and 21. The specification will then read, "United States Gypsum Company's Type No.-------, installation in full conformance with the Standard Specifications of the American Standards Association," for plas ter constructions: or, "United States Gyp sum Company's Type No.------- , installation in full conformance with the specifications and directions of the manufacturer," for pre-cast wall construction. For American Standards Association's Standard Specifications for lathing and plastering see Page 22. f I E B 0 1 8 1.470  WOOD FRAME BUILDINGS--Wood Studs, Bearing or Non-Bearing Thick ness (In.) Wt./sq. ft. Complete Fire Resistance Both Sides (Minutes) Specific Advantages Average Sound Trans mission Loss Across Frequency Range*4 Suggested Decoration Relative Type Cost4 No. 5% 13.8 lbs. 30 35.7 Texolite, other paint or paper II PI , ROCKLATH: /PLASTER-.- 5% 12.8 lbs. 55 Added fire protection 39.0 Texolite, other paint or paper II P2 /PERF ROCKLATHr PLASTER: - 5% 12.8 lbs. 1 hr. Maximum fire pro tection at low cost 39.0 Texolite, other paint or paper II P3 M 5% 15.9 lbs. 1 hr. Fireproof; resists crack-producing distortions 38.1 5% RES. PL. SYSTEM * p.i6 r ROCKLATH p.12 //PLASTER p.20 6Kb 15.9 lbs. 1 hr. 12.8 lbs. No test Fireproof; resists crack-producing distortions 38.1 Excellent crack resistance 51.9 Texolite, other paint or paper VIII I1 P4 Texolite, other paint or paper VIII P5 Texolite, other paint or paper IX P6 RES. PL. SYSTEM - pl6 /METAL LATH - p!4 / /PLASTER -p20 63/a 16.0 lbs. No test Combines resilient principle with known values of No test metal lath Iw/il_ Hi |yjrju11m 43/a B 4.8 lbs. 24/2 Fire resistive dry wall with con cealed joints No test IMMV//1 -^'SHEETROCK.- p.30" (PEAF-A-TAPE) 1W/ /w ////////////////! 4/s 5.8 lbs. 41/2 Heavier than P8 1 No test 1 ! Texolite, other paint or paper XIII P7 Texolite, other paint or paper III 1 Texolite, other paint or paper IV P8 P9 Ill 43/a 4.8 lbs. ! 24/2 i 4 34 4.8 lbs. 1 24/2 Beauty of natural wood paneling No test 1 Simulates ceramic 1 tile ot low cost No test Self-decorating ( XII 1 ! i Enamel , !X P10 j PI 1 SUM* cahtpft BB018 1471 9 NOTES `RELATIVE COSTS--Higher figures in this column represent higher probable installed costs, lower figures--lower costs. They represent relative not proportionate differences. Variations in price, wages and local practices make accuracy impossible. 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 estimote. `SOUND TRANSMISSION--Figures are from laboratory tests on constructions built to standard manufacturers' directions. Confirmation by test under other than laboratory conditions is not guaranteed. Thick ness (In.) Wt./sq. ft. Complete Fire Resistance Both Sides (Minutes) Specific Advantages Average Suggested Sound Trans- Decoration Mission Loss Across Frequency Range'* Relative Type Cost* No. 4Ya 3.3 lbs. No test Unit wall textured surfaces 30.0 Self-decorating. May be painted with Texoiite or other paint 1 PI2 Variations in tile 4 Ya 3.4 lbs. No test size, texture and 30.0 color Self-decorating. May be painted with Texoiite or other paint XI PI 3 Variations in plank 4Ya 3.4 lbs. No test width, color and texture. Plank 30.0 interlock Self-decorating VII P14 5Va 4.2 lbs. No test No furring strips. Tile interlock 33.0 Self-decorating X PI 5 3Va 4Ya 3.2 lbs. 4.2 lbs. No test Excellent for dados and wain 30.0 scots 3Va 3.3 lbs. No test Adds simulation of tile to PI6 30.0 Unpainted or enamel II PI 6 Enamel XI P17 FIREPROOF PARTITION ASSEMBLIES 2 21.6 lbs. 1 hr. Space-saving standard partition 37.7 4 V* (3'/4 Studs) 15.3 lbs. (3" Studs) 1 hr. 4 13 lbs. 2 hrs. Provides space for ducts and conduits vertically and 44.8 horizontally Low cost standard fireproof non bearing masonry 37.6 partition 1 5 16 lbs. ,3ghrs ' 59 mm. Increased fire pro tection over FP3 49.0 Texoiite, other j yj paint or paper j j FP1 Texoiite, other paint or paper VII FP2 ^ tri eroaa Texoiite, other paint or paper V FP3 Texoiite, other ; yjj paint or paper FP4 nj 5 I k iUN ITiED ESTATE S UM iC-OM PAN Y | fc N J IJU O iQ NOTES RELATIVE COSTS--Higher figures in this column represent higher probable installed costs, lower figures--lower costs. They represent relative not proportionate differences. Variations in price, wages and local practices make accuracy impossible. Architects should get accurate figures from local con tractors 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. Depth to Face Weight of Finished Sq. Ft. Ceiling (In.) Fire Heat Conductivity per Resistance Sq. Ft./Hr./0 Diff. in (Minutes) B.T.U's. (Includes %" Yellow Pine Rough Floor) Suggested Decoration Relative Type Cost* No. % 1.5 lbs. No test .30 Texolite, other paint or paper II CIO Vi 2.0 lbs. No test .28 Texolite, other paint or paper III Cl 1 V2 .75 lbs. No test .22 Optional 1 Cl 3 P/2 .75 lbs. No test .22 Self-decorating VIII Cl 4 P/2 .75 lbs. No test .22 Self-decorating VII Cl 5 FIREPROOF CEILING ASSEMBLIES I% 3 to 5 lbs. No test Texolite, other j . paint or paper j Cl 6 3/i 7.3 lbs. Texolite, other paint or paper ii Cl 7 Variations in insulation values of supporting structure prevent fixing heat losses through these constructions P/2 7.4 lbs. No test Texolite, other paint or paper hi C19 3 Vi- 7.4 lbs. No test Texolite, other paint or paper IV C20 7 8Toaa INNER FACE -- Wood Studs Special Characteristics Suggested Decoration Type No. 1 i^UrN ITvED SSHVATtE-S Standard construction for frame buildings Texolite, other paint or paper IW1 Improved fire protection over IW1 Texolite, other paint or paper IW2 Maximum fire protection in low to medium priced constructions. Texolite, other paint or paper IW3 Adds reflective insulation at low cost to IW1 Texolite, other paint or paper IW4 Adds standard insulation at slight additional costs Texolite, other paint or paper IW5 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, other point or paper IW7 Spring "floated" wall. Reduced possibility of cracks due to structural movement. No loth or stud markings Texolite, other paint or paper IW8 Combines excellencies of metal lath with proved advantages of floated wall principle Texolite, other paint or paper Dry wall construction reduces time of completion. With unfinished joints costs less than plastering. Joints may be finished to simulate plaster at costs the same or greater than plostering. Texolite, other paint or paper More expensive and heavier than IW10. Increases strength and fire protection Texolite, other paint or paper 1W9 IW10 IW1 I a oa h-* CG -fc> sj Ui 0 RAW? J NOTES RELATIVE COSTS--The variation in possible combinations of materials makes it impossible to use fully relate costs of the constructions shown. The relative cost column for interior partitions (Pages 4 and 5) will serve if all other conditions are alike. FIRE RESISTANCE--Similar variations in sheathing, masonry, etc., and lack of tests make com parisons of fireproofness difficult. The figures given under "Interior Partition Assemblies" (Pages 4 and 5) 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 fol lowing the data and instructions of the "Guide." Thickness of Applied Materials Hln.) Wt. of Applied Materials /sq. ft. Special Characteristics Suggested Decoration Type No. Ye 1.5 lbs. Adds beauty of fine wood grains to incombustible, unit wall construction Self-decorating IW12 Ye 1.5 lbs. Vz .. .75 lbs. P/2 .75 lbs. P/2 .75 lbs. Ye 1.5 lbs. :--p Vz insulating^ ' / SHEETROCK->30, / M? T-: ' - -r '' ' ' Vz l' REDTOPMNS; BLANKET?- p.44* 1 2.0 lbs. 2 oz. Medium 4 oz. THICK REDTOP* i INS,"BLANKET - p44* Thick 6 oz. Deeply pressed tile pattern pro vides close imitation of ceramic tile when enameled Enamel IW13 Low cost insulating unit wall construction--textured surface-- two colors Left in natural color or pointed, especially with Texolite IW14 Various sizes for interesting tile patterns. Several colors and textures Self-decorating. May be painted IW15 "Plank" may be voried in width and shade. Ogee edge on long joints Self-decorating. May be painted IW16 Identical with IW10 but provides bright aluminum foil insulation and vapor barrier at slight additional cost Texolite, other paint or paper IW17 Adds bright aluminum foil in Texolite, other sulation and vapor barrier to IW1 1 paint or paper IW18 Completely inclosed mineral wool blankets with vapor resistive face, automatically forming air space at inner foce of studs, and vapor permeable enclosure at outer face in all three sizes. Insulation coefficient .27 B.T.U.'s/sq. ft./ difference F./in. thickness. Insulation added to wood stud wall including both air spaces is for l-in, blanket .192; medium blanket .112;. thick blanket .086. | These materials add high amount of insulation to any stud wall or joisted ceiling. j Specify sepa rately -A io 9 B O O ig m>s -O INNER FACE -- Masonry Wf. of Inner Foce Installed /sq. ft. 4.5 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 4.5 lbs. Adds reflective insulation and effective vapor barrier to IWI9 Texolite, other paint or poper IW20 4.0 lbs. Adds standard insulation at small cost Texolite, other paint or paper IW21 7.3 lbs. 7.3 lbs. .5 lbs. 2.0 lbs. Better resistance to crack producing distortions Texolite, other paint or paper IW22 Stiffening effect of 2-Rib permits lighter gauge metal. Reduces plaster qualities On furring strips, this "unit" wall construction reduces com pletion time. Can be finished to simulate plaster at costs about the same or greater than plaster Texolite, other paint or paper Texolite, other paint or poper IW23 IW24 Adds strength, fire protection ct slight costs to IW24 Texolite, other paint or paper IW25 ) 1.5 lbs. Adds reflective insulation of bright aluminum foil to IW24 Texolite, other paint or paper IW26 .75 lbs. Low cost insulative unit wall construction Self-decorating. May be pointed, especially with Texolite IW27 .75 lbs. Decorative and insulative tiles in many sizes for many patterns Self-decorating, Moy be painted, especially with Texolite j IW28 .2 lbs. Heavier, stronger, more insulative than IW28 Self-decorating. May be painted, especially with Texolite .75 lbs. Interesting blend of colors. "Plank" width may be varied Self-decorating. May be painted, especially with Texolite in i \ 11 SU N IT;E.D SSTTiATtES SGT-P-SU*! CCOMP.ANY IW29 IW30 OEC-J CD NOTES RELATIVE COSTS--The variation in possible combinations of materials makes it impossible to use fully relate costs of the constructions shown. The relative cost column for interior partitions (Pages 4 and 5) will serve if all other conditions are alike. FIRE RESISTANCE--Similar variations in sheathing, masonry, etc., and lack of tests moke com parisons of fireproofness difficult. The figures given under "Interior Partition Assemblies" (Pages 4 and 5) should be helpful if used with discretion. HEAT INSULATION--See note Page 9. OUTER FACE -- Wood Studs Thickness of Applied Materials (In.) Wt. of Applied Materials /sq. ft. Special Characteristics Suggested Decoration Fireproof, strong sheathing. Tight joints, no knots. Does not require 1 3 lbs. building paper. Installed costs Paint less than wood | Type ; No. il 111 I EW4 . ..................... fr-r-- GYPLAP - P3Z ihf FURRING: /U.S.G. ASB,CEM. SIP p 48 1 'h 1% 14 lbs. With gypsum plaster on Rockloth 1 or metal lath for interior face j this construction provides maximum fire protection in stud exterior walls j Self-decoroting j j EW5 3.8 lbs. All advantages of EW4 plus incombustible siding Self-decorating EW6 Adds standard insulation. Tongued 1 1.8 lbs. and grooved long joints plus asphalt coating eliminate need for Paint building paper EW7 Insulative sheathing plus maxi T/2 12.8 lbs. mum stucco job. Building paper not needed. Self-decorating EW8 Insulative sheathing plus advan tages of asbestos siding 1% 2.6 lbs (See EW3). No roofing felt Self-decorating EW9 required under siding OUTER FACE -- I iry Thickness Wt. of from Support Inner Face to Finish Installed Face (In.) /sq. ft. oriental ext. r BASE COAT p 28 EXT. STUCCO p 28 1 12 lbs. 1 12 lbs. Special Characteristics j j Suggested 1[ Decoration j , Type 1 No Low cost stucco with oil advantages of mill-mixed product | i1 [ Self-decorating i i Best stucco construction. Uniform- j ity and permanence of mill-mixed ! product Self-decoroting | :' EWl ! EW2 FURRING' US.G. ASBESTOS CEM: SIDING - V32 t .8 lbs. Beauty of wood grain and color with permanence and low upkeep of asbestos cement Self-decoroting EW3 Q lO Q Q -b co 11 STANDARD ROCKLATH Rockloth* does not burn or readily transmit high temperatures and when plostered with gypsum plasters is fireproof. It contains noth ing to disintegrate or corrode -- no pitch, resin or gum to stain the plaster. The uniform suction of Rockloth 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 wos required to separate plaster from gypsum lath--a safety factor of 144. Rockloth is easily erected. A bundle of boards (32 sq. ft.) is easily carried by one man. There are no rough edges or splinters. One piece covers the same orea as 9 wood lath and requires half the nails. Boards score and cut without waste. It is not necessary to wet Rockloth before plastering. Rockloth keeps the moisture of fresh plaster from the frame, which prevents swelling of wood members. Walls and ceilings dry quickly. Walls of Rockloth and gypsum plaster cost less than metal lath and plaster, ond little, if any, more than wood lath and plaster. Uniform suction of Rockloth prevents plaster from slipping during application. PERFORATED ROCKLATH Perforated Rockloth is the same os Standard Rockloth, except that perforations are spaced at regular intervals which provide an addi tional mechanical bond with the gypsum plaster. This bond insures stronger interior walls and ceilings and greater resistance to cracks. Resistance to fire is greater, due to the persistence of the bond. 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 streom with a considerable margin of safety. s BBOlB 1479 INSULATING ROCKLATH Perforated Rockloth provides on additional bond for plaster with its regu larly spoced perforations. 9 Insulating Rockloth is the same os Standard Rockloth, except that on the bock is mounted a thin sheet of bright aluminum foil. Ap plied with the foil side next to the frame and facing an air space 3A-in. deep or more, its insulating value is equal to that of Vi-in. fibre insulating board. Extensive tests have proven that such foil applied to Rockloth provides a barrier which deters the movement of vapor and con sequently controls condensation. Heat passing into or out of a building must pass through the hollow spaces between framing members. About 75% of such heat travel is by radiation. Proof is conclusive that a bright metal foil effectively reduces the trans mission of radiant heat in either direction. Insulating Rockloth resists the inward passage of radiant heat in summer by reflecting it bock. In winter, when heat flow is out ward, it insulates because of the low emission from aluminum foil. Foil backing of Insulating Rockloth provides high insulating value ond is an effective vopor barrier. .// 4JN IT E D ^STATES *GTPSUM ^COM PANY * *Reg. Trade Mark USG BRIDJOINT METHOD OF APPLYING ROCKLATH W-22 Bridjoint Clip * * Above: Bridjoint Clips firmly attach ends of boords to continuous boords obove end below eoch joint. W-33 Corner Clip Left: Boords ore not fas tened to framework ot corners but securely to each other with W-33 Clips. Movements in framework are thus less likely to crock plaster. Also see inset in upper sketch. ADVANTAGES Fireproof construction which minimizes cracking and reduces sound transmission results at lower cost from this method using clips in place of the older method where nails alone are used. Stand ard, Perforated or Insulating Rocklath may be used. Rocklath is nailed to studs or joists as usual, except that ends of boards come between supports where they are reinforced by Bridjoint Clips, thus eliminating joints at the supports and mini mizing cracking. At corners and ceiling angles the Rocklath is not nailed to the framework but held together with No. 33 clips, pre venting transmission of stresses from the frame to the lath and plaster, as there is no connection to transmit frame movement. Savings result from reduced nailing time; elimination of cost and application time for metal lath corner reinforcement. All odd lengths of Rocklath are used and 25 'o less nails are needed. Costs about the same as a nailed on job. Freflote Bridjoint Method The Freflote Bridjoint method is similar to the Bridjoint method with one exception: Instead of being nailed at the supports, the Rocklath is attached with No. 60 semi-rigid Freflote Bridjoint Clips. These are designed to help in the absorption of stresses in the lath and plaster caused by movement of the framework. Freflote Method The Freflote method differs from the Freflote Bridjoint method in that the end joints between the boards come over the supports. Special clips are employed which serve two purposes: they hold the boards to the supports and they reinforce the end joints. 13 BDO10 14B0 i rt- ? s Wcmanufacturemetaldothtintoll typesfond weightsin ^standard and special wnetals,nd a full linesfmetal Jathnccessories^foraquickxiationalilistnbution. 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 self furring or corrugated types. Vs-IN. Z-RIB LATH--Unique "Z" type ribs P/a in. deep x 1 Vi in. o.c.) add rigidity. Provide shelves to hold wet plaster, front and back, without waste. 4-mesh Z-RIB LATH--Companion product to Ve-in. ZRib Lath, but has smaller mesh opening and comes in 27-in. width. -v-- %-IN. RIB LATH--Rigid reinforcement for long spans (See table). Provides for nested lop at outside ribs with no humps. -AA_ RIB LATH--For spans longer than %-in. Rib Lath (See table). Ribs 4.8 in o. c.; heavy weight; self-furring. ; 41N I T EO 2STA1T.E S 4GTT.S U M iCt) M PAN Y i EXPANDED STUCCOMESH -- Diagonal strands provide distribution of steel to overcome initial shrinkage, tem perature changes, wind stress-protection against unusual shocks. Type of Steel Weight per Sq. Yd.* Maximum Relative Span** Costt Recommended Uses DIAMOND* MESH* LATH? \ ': vn:V7-'k.> Open hearth steel, painted black Copper bearing steel, painted black Cut from galvanized sheets Armco Ingot Iron, pointed black 2.2, 2.5, 3.0, 3.4 2.2tt, 2.5tt, 3.0, 3.4 2.5, 3.4 2.5tt, 3.0tt, 3.4 Ceiling, 16 in. Wall, 16 in. i Vb-INL Z^RIBS EATHi I 4-mesh* r-RIBLATHi 1 Vs-INt RIBS LATH* Open hearth steel, painted black Copper bearing steel, painted black Cut from galvanized sheets Armco Ingot Iron, pointed black 2.75, 3.0, 3.4 3.0tt, 3.4 3.4 3.4tt Open hearth steel, painted black Copper bearing steel, painted black Cut from galvanized sheets Armco Ingot Iron, painted black 2.75, 3.0, 3.4 3.0tt, 3.4 3.4 3.4tt Open hearth steel, painted black Copper bearing steel, painted black Cut from galvanized sheets Armco Ingot Iron, painted black 3.0, 3.4, 4.0 3.0tt, 3.4, 4.0tt 3.4, 4.0tt 3.4, 4.0tt 1 Ceiling, | 19 in. Wall, 19 in. M Ceiling, i 19 in. : Wall, 19 in. II Ceiling, 19 in. Wall, 19 in. ! n i 3/4-IN&RIB?LATHfe- SSXMnc > ^ % Open hearth steel, painted black Copper bearing steel, painted black Cut from galvanized sheets Armco Ingot Iron, painted black .50, .60, .75 .50tt, .60tt, *75tt .50tt 75tt EXPAN DEDf STOCCOMESHi ...V.: Open hearth steel, painted black Copper bearing steel. painted black Cut from galvanized sheets 1.8, 3.6 1.8, 3.6 1,8tt, 3.6tt IV Since uses are differ ent from foregoing, span fig ures not applicable Ill All-purpose loth for plain and ornamental plastering. For nailing on wood construc tion or tying on metal furring Especially adaptable for tile backing 1 For floor ond cei 1 ing construc tion with steel joists; ceilings under steel tile construction, and where wide spacing of , supports is necessary For centering and reinforce ment of concrete roofs ond floors; plaster partitions and ceilings on extremely wide spacing of supports; specialwork; columns, balconies, etc. Base reinforcement for exterior stucco `^Except 3^-jn. Rib Lath--figured per ft. ^Maximum span of maximum weight. Based on wood construction. METAL LATH ACCESSORIES t"l" equals least expensive; "II" equals more expensive, etc. ttMade especially to order. > Q r0ffg 15 FLEXIBILITY Ploster cracking 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 wall and ceiling constructions without sacrificing strength. LESS STREAKING Unequal condensation causes the charac teristic streaking of plastered walls and ceilings. The condensation is greater where the plaster contacts the supporting frame members. USG Resilient Clips hold the ploster away from the framework permitting al most complete equalization of the con densation. Streaking is thus practically eliminated. 1 ABSORBS FRAME MOVEMENT > S rOffg 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 I-in. air space, an ac cepted satisfactory soundproofing con struction. IP $ f ! 4J N I T E D 1SXAXES jGTPi U M ACiOMPJVNY' l| SPRING ACTION DAMPENS VIBRATIONS AND REDUCES SOUND TRANSMISSION ccaj FOR ROCKLATH WOOD CONSTRUCTION STEEL CONSTRUCTION PLASTER, ROCKLATH STEEL STUD 222 'NO.6 CLIPS \L MASONRY CONSTRUCTION NO. 600 STUO BAR J0IST7 N0.5 ROCKLATH .CLIP l '_____ /------------1 FURRING i f) CHANNEL U eoomxxxv'.vvM AJ i i, ,i. rrr.. ,.......-.1 S- N0.6-/ ROCKLATH r Vs CORNERITE CLIP FOR METAL LATH -ROCKLATH BLASTER -MASONRY NO.200 CUP I STEEL CONSTRUCTION i N0-400 w% J..; f N0.600 > .. j STUO /? MASONRY CONSTRUCTION V4* FURRING ). CHANNELS NO 500 !' WIRED TO CLIP--"`i: CLIP 7, 7` r - Vr..,r -- PLASTER- STUD SEAT NO. 700 NAILED TO CEILING .. .."A; wf IVT' . .1 - v 7' STEEL STUD METAL 1r *'*i \;i --LATH wired TO A a(\ seat CLIPS K BD018 1484 17 ADVANTAGES The truss design of USG Trussteel Studs* makes for strong, light weight construction. Weight is approximately 15.3 lbs. per sq. ft. of partition. Dead load on structural members is less than with other type constructions. With gypsum plaster on metal lath, a fireresistant partition with a 1-hour fire rating is provided. Attachment shoes permit speedy, substantial attachment and a 4-inch range of adjustment 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 installed with standard tools. Runner tracks, light gauge and easily cut with tin snips, ore flexible and follow contours of irregular floor surfaces. They are nailed to con crete floors with stub nails. No costly expansion bolts are required. Holes, spaced 2 inches 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 facilitate tieing track to metal lath ceiling. Because USG Trussteel Studs provide a rigid support for the metal plaster base, plastering is as easy as with the usual metal lath job. The type of lath to be used depends upon the stud spacing. Runner track is aligned and attached to concrete tloor and ceiling with stub nails. Attachment shoes are inserted aver ceiling runner track at stud spacings. STRENGTH TESTS Results of tests conducted by the Raymond G. Osborne Laboratories, Los Angeles, during No vember 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. B13018 1485 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 adjust ment to 4 inches over the stock length. Widths are 2, 3, 3 Va, 4 and 6 inches. Runner tracks are made in 8 ft. 2 in. lengths, in 2, 3, 3 Vi, 4 and 6-in. widths to fit respective sizes of USG Trussteel Studs. Bottom end of stud is fastened to floor runner track by wiring shoes or crimping with pliers. K i r iU NI TED STATES ^GYPSUM XOMPANY Metal lath Is applied to both sides of studs with 18 gauge galvanised tie wire. *Reg. Trade Mark CONSTRUCTION DETAILS -RUNNER TRACK Oj--rir SECTION THROUGH HEAD -STEEL STRAP WELDED Tp FRAME DOUBLE STUD WIRED TO STRAP OR LUG-- ELEVATION SECTION THROUGH JAMB ENGINEERING DATA Stud Spacings--The following types and weights of metal lath are recommended for various stud spacings: Type and Weight of Red Top Metal Lath 2.5 lb. Diamond Mesh 3.0 lb. Diamond Mesh 3.4 lb. Diamond Mesh Recommended Trussteel Stud Spacing 12 inches 13 Vi inches 16 inches 2.75 lb. Vs" Z-Rib Lath 3.0 lb. Va" Z-Rib Lath 3.4 lb. '/a" Z-Rib Loth 16 inches 16 inches 19 inches 3.0 lb. 3/a" Rib Lath 3.4 lb. 3/a" Rib Lath 4.0 lb. Rib Lath i 24 inches 3 P/2 inches 3 I Vi inches Length Limits--Maximum ceiling heights recommended for various size Trussteel Studs are 2-in. Stud, 10 ft.; 3 and 3Vi-in. Studs, 16 ft.; 4-in. Stud, 18 ft., and 6-in. Stud, 20 ft. Studs exceeding 12 ft. in length should also be braced horizon tally with a 3A-in. channel at 4 to 6 ft. intervals, vertically, to give the partitions lateral strength. Finished Wall Thickness--Based on plastering to a 3A-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........................... 3Vi-in. Finished Thickness 3 -in. Trussteel Stud........................... 4'/2-in. Finished Thickness 314-in. Trussteel Stud.........................43A-in, Finished Thickness 4 -in. Trussteel Stud........................... 5Vi-in. Finished Thickness 6 -in. Trussteel Stud........................... 7Vi-in. Finished Thickness Millwork should be ordered to fit the above wall thicknesses. BB018 I486 19 BASE COATS Mode of Gypsum Cement. For scratch ond brown coats. Sand and water added ot job. Two types: Fibered, for scratch on "open or key lath," and Unfibered for closed lath and brown coats. Lowest cost where good sand is available; easiest working plaster with greatest covering capacity. Unaffected by local sands or waters. Brands--Sold under the following trade names in different local ities: Red Top,* Granite, Big-4,* Niagara, Peerless, Hardwall, King's Windsor,* Red Top Eldorado* (Gypsite). TYPE NUMBER: B1 APPROXIMATE COVERING CAPACITY Plastering Wood surface lath Metal lath Gypsum Brick ond Gypsum lath clay tile tile Sq. yds. per ton 180-210 105-135 : 225-240 165-200 235-255 (Sanded (Sanded 1 (Sanded (Sanded (Sanded 2 to 1) 2 to I) !1 2 to 1) 3 to 1) i to i) V- Gypsum plaster, sand added at mill--water only at job. For scratch and brown coats. Types: (1) Regular; for loth; (2) for masonry; (3) Sanded Wood Fibre, for lath--costs more than "Regular" but less thon "Wood Fibre" (below), of which it hos same qualities in lesser degree at lower cost. Used where sand is poor. Machine mixing assures correct pro portions. Oversanding is prevented. Good winter plaster, frozen sand is avoided. Can be mixed inside building. Brands--Red Top Sanded Plaster, Red Top Sanded Plaster for Brick or Tile, Red Top Sanded Wood Fibre Plaster. TYPE NUMBER: B2 APPROXIMATE COVERING CAPACITY Plastering Wood surface lath Metal lath | Gypsum j lath Brick and 1 Gypsum clay tile [ tile Sq. yds. per ton 60 to 70 35 to 45 j 75 to 80 45 to 55 65 to 70 (Plaster mixed with water only--no sand added) Gypsum plaster, with uniformly distributed, finely shredded wood fibre aggregate added at mill--water only at job. For scratch and brown coats. Tough, strong, dense, durable. Superior to Plasters above in fire-resistance, insulation, sound-deadening. Withstands vibra tions ond strains. Con be sawed like wood. Has all advantages of Prepared Plaster. Brands--Sold under following trade names in different localities: Red Top, Red Top Eldorado (Gypsite). TYPE NUMBER: B3 APPROXIMATE COVERING CAPACITY Plastering surface Sq. yds. per ton Wood lath 90-100 (Unsanded --water only added) Metal lath 55-65 (Unsanded --water only added) Gypsum lath 1 15-120 (Unsanded --water only added) ^e trr e ro o g Ordinary gypsum or lime plasters do not bond well with concrete. Therefore, Bondcrete hos been created for scratch and brown coats over concrete. Water only is added at the job. Bondcrete adheres strongly to dry concrete due to its cementi tious qualities and its low volume change during setting and hardening. Finish coat must not exceed V* in. in thickness. Provide furring and lathing where more than 3A in. of plaster is required or orna mental plaster is suspended. TYPE NUMBER: B4 APPROXIMATE COVERING CAPACITY From 90 to~120 sq. yds. to the ton depending on the regularity of the concrete surface and the thickness to which Bondcrete is applied. Results ore best when a semi-rough, clean surface is provided. Bondcrete should not be applied over smooth, oily or efflorescent surfaces. m 10 N IT-EU tSTiAT*ES ^GTfPiS4i<M *C:M FAiNT *Reg. Trade Mark FINISHES For finish coot only. Water only added ot job. Types: Trowel and Float. Trowel Finish--contains no lime to saponify paint; uniform color, no streaks from careless mixing. Positive set. Best bond to gypsum base coats--gypsum bonds best with gypsum. May be given high polish. Float Finish--selected sand, kiln dried, clean. Uniform color. Sand varied at each mill to suit local usage. Ideal for winter use. Brands: Red Top* Trowel Finish, Red Top Universal* White TYPE NUMBER: FI Specify "Floot" or "Trowel" Trowel Finish, Red Top Adamant* White Trowel Finish, Red Top Adamant Slate Colored Trowel Finish, Red Top Adamant IXXX Trowel Finish, Red Top Badger* Gray Trowel Finish, Red Top* Silica White Sand Float Finish, Red Top Adamant Gray Sand Float Finish, Red Top Adamant White Sand Float Finish, Red Top Sand Float Finish (Light Gray). APPROXIMATE COVERING CAPACITY Trowel Finish: 350 to 400 yds. per ton. Float Finish: 250 to 275 yds. per ton. For textured or floated plaster finish coats. For trowel finishing on special order. Water only added at job. Made in white and twelve standard shades. Carefully graded and sized aggregates, and selected pigments which are proof against discoloration by cement, produce self-decorating walls of a uniformity impossible of achievement with job mixed finishes. TYPE NUMBER: F2 Specify Color and Texture Various colors may be applied in spots on the walls and blended together with burlap, trowel or float, to produce effects like Tif fany, Flemish and antique finishes of the painter, but more subtle and subdued because of the texture. Positive control of quantities of color used is obtained through machine mixing at the mill so that joinings between separate ap plications will not show if proper precautions are taken. APPROXIMATE COVERING CAPACITY 250 to 300 sq. yds. per ton, varying according to textures. TYPE lire NUMBER* nUMDEKi rF3i Specify "White" or "Gray" ond Type Lime Desired For job mixed trowel finishes. Quick and slow setting types. Slow Set: Red Top* (Gray), Red Top Star* (White), Red Top USG Gauging Plaster requires a relatively small amount of wafer to produce plasticity as compared with cement plaster, speci fically made with a high water-carrying capacity. Specific advantages: Specially made for gauging purposes; quickly and intimately mixed with lime to form a more perfect finish; uniform in color, being made from selected rock; con be Superfine Finishing (White). Quick Set: Red Top* (Gray), Red Top Champion* (White), Red Top Kings Diamond (White), Red Top NYC Mills*, Red Top Quick Setting, Red Top Fast Setting. APPROXIMATE COVERING CAPACITY 9 obtained retarded specially to suit any local usage. One ton mixed with two tons of dry hydrated lime by weight, covers Brands: Sold under following trade names in different localities: about 1000 to 1400 sq. yds. Used with Gauging Plaster or Keene's Cement for finish coat. Types: Quicklimes, lowest cost; require somewhat exacting pro cessing of job; more likely to produce craze-cracking, lime pops. Hydrated Limes, eliminate job slaking hazards, screening; save time. Pressure Hydrated Lime, new, improved finishing lime, re quires less soaking; consistency of putty easily adjusted; increased plasticity permits thinner coats; speedy application; check crack ing is reduced, lime pops eliminated; meets oil new and proposed Federal Specifications. Brands: Sold under following trade names in different localities: Type NUMBER* E4 Specify Quick, Hydrated or Pressure 1 1r 1 * Hydrated and Type Gauging Plaster Desired Quicklimes: Cheshire* Quicklime (High Calcium), Peerless Quicklime (High Calcium). Hydrated: Red Top Ivory*, Red Top Grand Prize*, Red Top, Cheshire* Hydrate (High Calcium), Plastimax* Finishing Hydrate (High Calcium). Pressure Hydrated: USG Hydrated Lime. APPROXIMATE COVERING CAPACITY When used with proper proportions of Gauging Plaster a ton of Quicklime covers about 1000 sq. yds.; Hydrated Lime obout 500 to 700 sq. yds.; Pressure Hydrated about 500 to 700 sq. yds. For slow-setting finish and base coats, fully twice as hard and strong os any other type gypsum wall plaster. Rivals natural stone in appearance and effect. Takes high polish. Types: Standard Keene's Cement, used with lime putty and sand to moke a very hard base coat or finish; in producing colored finishes, such as Caenstone, at the job, or to provide a hard, slow-setting finish which can be readily scored to imitate ceramic tile with great exactness. Resulting wall wears almost os well as ceramic tiling. TYPE NUMBER: F5 Red Top Casting Keene's, specially for casting hard plaster orna ments; has final set of about 2 hours. Red Top Scagliola Keene's, specially for producing fine imitation marble by the Scagliola pro cess. Red Top Quick Troweling Keene's, solely for use with lime putty as gauging material to produce harder, gauged lime putty finishes; sets in about 2 hours. APPROXIMATE COVERING CAPACITY One ton used neat, according to specifications, will cover obout 400 to 500 sq. yds. ata *8 J48e TYPE NUMBER: F6 For ornamental moulded plaster work. and working out trapped air bubbles and for working the plaster Particularly smooth working plaster of uniform setting quality. into angles and corners of moulds. Even when green, moulds of 9 Ground much finer than other similar products, assuring more thorough solution ond finer surface to the finished work. Its cooler Arizide have great strength. Breakage by handling and manipula tion in the moulding and casting stage is diminished. working and slower setting qualities account for low expansion and Brands: Sold under following trade names in different localities: absence of warped moulds. Slow generation of heat in setting pro Red Top* (Gray), Red Top No. 1 (White), Red Top No. 2 (White), tects gelatine or glue moulds. Slow setting gives time for blending Red Top King's Diamond (White), Golden Seal (White). 'Reg Trade Mark A fully competent specification is a major 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 lothing is involved. They are printed here through the courtesy ond permis sion of the American Standards Association and the spon soring organizations: The American Institute of Architects and the American Society for Testing Materials. 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 American Society for Testing Materials CHAIRMAN W. R. MacCornock 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 Bureau of Standards, Washington, D. C. DRAFTING SECRETARY: F. R. Wragg U. S. Housing Authority, San Francisco, Calif. 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 for 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 Finishing Lime Association of Ohio: Johnson, L. E. Gypsum Association: Jones, H. Z. Insulation Board Institute: Miller, R. T. Metal Lath Manufacturers' Association: Lurie, E. M. National Association of Building Owners and Managers: Cheyney, C. Robert National Association Real Estote Boards: Bohnen, Arthur National Lime Association Stauffer, S. W. National Sand and Gravel Association: Walker, Stanton Operative Plasterers' and Cement Fnishers' International Association: O'Reilly, J. F. Portland Cement Association: Kaiser, W. G. U. S. Housing Authority: Wragg, F. R. Wood, Wire and Metal Lathers' International Union: McSorley, W. J. Members-at-Large: Lynas, A. O.; Lynch, W. J.; McBurney, J. W.; McNulty, J. D.; Payne, W. A. BB018 1489 nn GENERAL NOTES ON PLASTERING To obtain the best results it is essential that all operations con nected with plastering and lothing shall be in accordance with the best practices of the industry. Attention is specifically directed to the following: Tools used for mixing and applying plaster 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 organic or vegetable matter which may retard the "set." Sond is not a cementitious material. It is, however, a very im portant ingredients. Extreme care must be exercised in its selec tion. Fine sand should never be used. The finer the sand the larger the total surface area in relation to the volume of particles ond the greater the amount of gypsum required to coat each grain. Sand used in plaster must be well graded from fine to coarse. Over sanding weakens the plaster proportionately, and usually acceler ates the "set." Fine sand, having rounded particles, uniform in size (frequently called "quicksand") must not be used. It can be easily detected since it settles in the bottom of the mixing box, gives the mixture o 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 conform ing to the requirements of the Standard Specifications for Sand for Use in Plaster (A.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 neces sary for the chemical reaction which sets ond 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 cheesecloth, or similar ma terial. In cold, damp, or rainy weather, properly regulated heat must be provided, but precautions must be token against too rapid drying before set has occurred. As soon as the plaster has set, free circulation of air shall be provided 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 ond thawing must be avoided. Bituminous Coatings -- Because bituminous compounds do not provide ideal bases for plaster, the applying of plaster to masonry 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 precaution ary measures. The use of dressed (smooth) lumber, metal, and ply wood forms, oiling or greasing of same, ond the vibrating of con crete produces concrete surfaces which are so smooth that mechan ical bond necessary for plaster is absent. The adhesion of plaster to concrete depends largely upon the condition of the concrete surfaces 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 and before the concrete has become too hard, or by applying a dosh-coot of portland-cement grout. 'See Note Page 27. 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 * 1. (a) The work includes all labor, materials, services, equip ment, and scaffolding required to complete the lathing and plastering of the project in accordance with the drawings and specifications. (b) Scaffolding shall be constructed and maintained in strict conformity with applicable laws and ordinances, and so as not to interfere with and obstruct the work of others. (c) The work shall be properly coordinated with the work of other trades. DESCRIPTION OF TERMS 2. lal 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. lb) The term "suspended," as applied to ceiling construction, means that the furring members are suspended below the struc tural members of the building. (c) The term "main runners," as applied to metal construction, means the runners which are attached to or suspended from con struction above. Id) The term "cross furring," as applied to metal construction, means the furring members which are attached at right angles to the underside of main runners or other structural supports. SCOPE OF WORK 3. (a) The following work shall be included: (b) The following work shall not be included: MATERIALS 4. (a) The materials shall conform to the following specifica tions of the American Society for Testing Materials, or any sub sequent revisions thereof: A.S.T.M. MATERIALS DESIGNATIONS SAND FOR USE IN PLASTER*1................................................................ C 35-39 i nud I LiMt ) Hydrated Lime for StructuralPurposes1..........................C 6-31 Quicklime for Structural Purposes1................................. C 5-26 Ready-sanded .................................... 1 1 ^-ribered Calcined gypsum for finishing coat J c 28-30 MOLDING PLASTtK1.................................................................................C 59 - 30 KWEAETNEER'S. C. E. .MsEhaNlTl 1be....c...le...a..n..,....f.r..e..s..h..,....s..u...i.t.a..b...l.e....f.o...r....d..o...m...e..s...t.i.c....c..o...n..s..u..Cmp6t1ion-3, 0and free from such amounts of mineral and organic substances as would affect the set of the plaster. " The requirements for plasticity prescribed in Standard Specifications C 6 - 31 shall apply to hydrated lime and quicklime used for lime putty in finishes, and all lime used shall be suitable for base and finish coat 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. (c) Plaster and oil cementitious materials shall be kept dry until ready to be used; they shall be kept off the ground, under cover, and away from sweating walls and other damp surfaces. Metal goods shall be protected against rusting. BASE COAT PROPORTIONS 5. Base coat plaster shall be proportioned as follows: (o) Gypsum Neat Plaster: NOTE--The term "neat" as applied to gypsum plaster means that the material, os shipped by the manufacturer, does not contain sand. Sand must be odded at the job. Neat plaster may be fibered or untibered. Scratch (first) coat on all types of lath shall be mixed in the proportions of 1 part of gypsum neat plaster to not more than 2 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 part of gypsum neat plaster to not more than 3 parts of sand, by weight. (b) 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) and for brown (second) coat in all three-coat work, either scratchcoot or brown-coat gypsum ready-sanded plaster may be used. 'cl Gypsum Wood-Fiber Plaster: For two- and three-coat work on all types of lath, gypsum wood-fiber plaster shall be used without the addition of sand. For two- and three-coat work on masonry surfaces (except mon olithic concrete), gypsum wood-fiber plaster shall be mixed in the proportions of 1 part of plaster to 1 part of sand, by weight. HAND MIXING 6. Material which has partially set shall not be retempered or used. Frozen, caked, or lumpy material shall not be used. The mixing boxes shall be watertight and thoroughly cleaned of all set or hardened material. If mixing is done in the building, waterproof protection shall be provided under the mixing boxes and water barrels. Tools shall be cleaned after mixing each batch. (a) Gypsum Neat 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--Sand 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. MECHANICAL MIXING 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 all set or hardened material before ma terials for a new batch are loaded. Each batch shall be mixed separately. (o) 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: Put in the approximate amount of water, Add approximately half the amount of sand. Add all the plaster. 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 sand and water shall be added after dumping each batch and the mixer run for a few minutes. After dumping the sand and water, the mixer will be cleon and ready for a new batch. (b) Gypsum Ready-Sanded Plaster--Sand 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 plaster, 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 dumping each batch and the mixer run for a few minutes. After dumping the water, the mixer will be clean and ready for a new batch. (c) Lime Putty--Quicklime shall 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. FINISH COAT PROPORTIONS 8. (a) Gypsum Lime-Putty Trowel Finish shall be mixed in the proportions of 3 parts of lime putty to 1 port of gaging ploster, by 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 Vi parts of Keene's cement, by volume. NOTE--If mixed mechanically, the proportions shall be 2 cu ft of lime putty, 1.5 cu. ft. of Keene's cement, and 10 lb. of fine white washed sand, mixed as follows: ' Put in approximately 24 qt. of water, Add lime, sand, and Keene's cement. Mix for not less than 15 min. nor more than 20 min., and Dump entire batch ond use. HARD FINISH shall be mixed in the proportions of 1 part of lime putty to 3 parts of Keene's cement, by volume. Id) Prepared Gypsum Sand Float Finish shall be mixed with water to the proper consistency in accordance with the manufacturer's directions. `The A.S.T.M. Standard Specifications for Sand tor Use in Plaster 1C 35 - 391 are appended, sec p. 27. 1 These srondara specifications of the American Society for Testing Ma terials are published in the 1936 Book ot A.S.T.M. Standards, Part II, pp. 30, 21, 89, 364, and 255, respectively. BB0.1S 1490 ` (e) Gypsum Sand Float Finish shall be mixed in the proportions of 1 port of gypsum neat unfibered plaster to not more than 2 parts of sand, by weight. Sand shall pass a No. 12, 16, or 20 sieve, depending on the texture of the surface desired. >(f) Keene's Cement--Lime Sand Float Finish shall be mixed in the proportions of 2 parts of lime putty, 1 Yz parts of Keene's cement, and 4Vz parts of sand, by volume. (g) 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: THICKNESS OF PLASTER LATH f Metol, Wire Lath, and Wire t Fabric .......................................................................... 5.g in., min. [ All other types.............................................................. Yz in., min. UNIT MASONRY AND CONCRETE WALLS.......................... % in., min. MONOLITHIC CONCRETE CEILINGS.................................... l j? in., max. NOTE.--If monolithic concrete ceiling surfaces require more than % in. of plaster to produce desired lines or surfaces, metal lath or wire lath shall be attached thereto. In extreme cases metal furring may be required. (b) Wood Grounds will be furnished and installed by others. <c) Metal Grounds shall be furnished and installed by the plaster ing contractor. PREPARATIONS FOR PLASTERING 10. (o) Temperature and Ventilation.--Plaster shall not be applied to surfaces 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 heaf, it shall be provided by ......................Salamanders shall not be used. Adequate, properly regulated ventilation shall be provided. (bl Mosonry 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 Loth shall be thoroughly wet down from 12 to 24 hr., and in very dry weather again from 1 to 3 hr., before the plaster is applied. (d) Gypsum and Fiber Insulation Lath shall not be wet down. (e) Monolithic Concrete Surfaces shall be cleaned of all dust, loose particles, 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 and water and then with clean water to remove all traces of acid. Grease and oil shall be com pletely removed. Concrete surfaces shall have sufficient roughness to provide proper bond; if necessary the surface shall be evenly wetted, not saturated, to provide proper suction. If surfaces are not rough, they shall be hacked or bush-hammered, or a dash-coat of portland cement grout, composed of 1 part of cement and 1 Vz 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 plaster, 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 shall not then proceed until such unsatisfactory conditions have been satis factorily remedied or adjusted. (g) Metal Grounds and other accessories such as corner beads, screeds, picture molds, etc., shall be carefully exomined to see that they are straight, curved, plumb, level, square or true to the required angles, as the case moy require, before the plaster is applied. APPLICATION OF BASE COATS 11. (o) Two-Coot Work.--Base (first) coat shall be applied with sufficient material and pressure to form good full keys on wood lath, and good bond on gypsum or fiber insulation lath or masonry, as the case moy be, and to cover well, and then be doubled back to bring the ploster out to grounds, straightened to true surface with rod and darby and left rough, ready to receive the finish (second) coat. (b) 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 fabric, and good bond on gypsum or fiber insulation lath or masonry, as the case may be, and to cover well, and then be scratched to rough surface. Brown (second) coat shall be applied, after the scratch (first) coat has set firm and hard, brought out 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 scratch coat prior to the application of the brown coat. (c) Solid Ploster Partitions shall be not less than 2 in. in thickness and shall have scratch, back-up, brown, and finish coats. Scratch coot shall be applied on the lath side with sufficient material and pressure to form good keys and to cover well, and then be scratched to a rough surface. Temporary bracing 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 shall be applied on the channel or rib side, after the scratch coat on the lath side has set firm and hard, in not less than two operations, the first to adequately 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 coat. Brown coat on the lath side shall be applied over the scratch coat, after the back-up coat on the channel or rib side has set, ond shall be rodded, darbied, and left rough, as specified for the back-up coat. Plaster shall extend to the floor. All spaces between grounds shall be filled. Hollow metal 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 walls and columns shall have a scratch coat of bond plaster, followed by a brown coat of gypsum plaster (in the propor tions of 1 part of gypsum neat plaster to not more than 3 parts of sand, 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 surface and left rough, ready to receive the finish coat. i s 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 a base coat which has set and is surface-dry, scratched in thoroughly, laid on well, doubled back and filled out to a true, even surfoce. The thickness shall be from 1/16 to Vb 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. Prepared 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 coat 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 Vb in., unless the finish coat is marked off or jointed, in which case the thickness may be increased as required by the depth of marking or jointing. The finish shall be allowed to draw a few minutes ond 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, but not soaked, before the finishing coat is applied. (b) Float Finishes.--The following float finishes shall be applied over a thoroughly set base coat which is nearly but not quite dry, laid on with a trowel to an even surface, and then floated (with wood, carpet, 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 sand float finish. Gypsum sand float finish, and Keene's cement-lime sand float finish. NOTE.--If the base coat has dried out, it shall be sprayed with water, but not soaked, before the finishing coat is applied. (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 applied in accordance with the manufacturer's directions. a ctz -- 00 -fe >0 04 f 41NIT-EC 3S7TAT E S -jSGPt Pi U M C43M P4VN Y 'ij SPECIFICATIONS FOR LATHING AND FURRING --------------------------------------- Chapter II ft 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 desirable to use metol loth and supporting members heavier thon the minima listed in these standard specifications. MATERIALS LATHING 13. (a) Gypsum Lath shall conform to the Standard Specifications for Gypsum Lath (A.S.T.M. Designation: C 37 -- 34) of the American Society for Testing Materials,1 or any subsequent re 14. All lath shall be applied with the long dimension at right angles to the supports, except that furnished in rolls which may be applied with the long dimension parallel to the supports. vision thereof. Gypsum lath shall conform to the following dimensional require APPLICATION OF GYPSUM LATH ments: 15 (a) Gypsum lath shall be securely nailed to wood supports Thickness........................................................................ '............5/16, or 1/2 in. Width..............................................................................................16 in. Length............................................................................................ 32 or 48 in. (b) Wood Lath shall be No. 1 grade, reasonably clear, evenly manufactured, and free from detrimental defects. A few worm holes, small pitch pockets, well set or firm knots, not more than Vi in. in diameter and not bunched, and wane not more than one-third the thickness and one-third the width for one-third the length on one side of the lath, or its equivalent otherwise located, when not in combination with any other defect, shall be permitted. Wood lath shall conform to the following dimensional require- merits' MINIMUM Thickness................................................................. i',; in. Width........................................................................ 1 ii in. ( 471/2 in. Length................................................................... (31'/2in. MAXIMUM 3/s in. 15/sin. 48 in. 32 in. (c) 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. (spaced not to exceed 16 in. on center) at intervals not to exceed 4 in. with No. 13 gage, 1'/s-in., ^s-in. flat head, blued nails. The nails shall be driven with the under side of the head flush with the face of the lath. (b) Joints between walls ond 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. (c) Cornerite shall be securely nailed through lath to supports at all interior angles. (d) Gypsum lath shall be attached 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 loth be applied in rectangular herringbone fashion. Surfaces shall 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..................... V2 in., 3A in., and multiples of 1/2 in. A in. APPLICATION OF WOOD LATH 16. (a) Wood lath shall be spaced % in. apart at the edges, Vi in. apart at the ends, ond 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. I Width........................... 1 6, I 8, or 24 in. Length...........................48 in. --1/4 in. --]/4 in. Fiber insulation lath may be either single or multiple ply (b) Joints shall be broken every seventh lath. Ic) Loth shall not run through from one room to another. board. The individual plies shall be joined in such manner as to id) Cornerite shall be securely nailed through the lath to the prevent separation under normal use. supports at all interior angles. Fiber insulation lath Vi in. in thickness shall have a trans verse strength lengthwise of not less than 14 lb. and crosswise APPLICATION OF FIBER INSULATION LATH of not less than 12 lb. The strength of other thicknesses shall 17. (a) Fiber insulation lath shall be nailed securely to wood be in direct proportion. The deflection at the specified minimum supports (spaced not to exceed 16 in. on center) at intervals of load (12 lb. or 14 lb.) shall not exceed 0.85 in. ond the deflection not more than AV2 in., with blued or bright nails of the following at the maximum load shall be not less than 0.25 in. Tests to de sizes: termine strength and deflection shall be in accordance with the For '/2-in. lath................. 1 y8-in. blued fiber-board nails or 4d box noils. Federal Specification for Insulating Fiber Board (LLL-F-321a). For 1-in. lath....................I 3/4-in. blued fiber-board nails or 6d box nails. Id) Metal Lath, Expanded, Ribbed, and Sheet shall be of steel, (b) Nails shall be placed not less than Va in. from the ends and coated with rust-inhibitive paint after cutting, or cut from zinc- not less thon Vi in. from ship-lapped, tongued-ond-grooved, or coated sheets. interlocking edges. (e) Wire Lath shall be not lighter than No. 19 W. & M. gage wire, 2 Vi meshes per inch, coated with zinc or rust-inhibitive paint. If) V-Stiffened Wire Loth shall be not lighter than No. 20 W. & M. goge wire, 2Vi meshes per inch, with No. 24 U. S. gage V-rib stiffeners spaced not to exceed 8 in. apart, coated with Ic) End joints (except interlocking type) shall be approximately 3/16 to Vi in. Ship-lopped, tongued-ond-grooved, or interlocking edges shall be fitted to moderate contact. (d) Cornerite shall be securely nailed through the lath to the supports at all interior angles. zinc or rust-inhibitive paint. Igl Paper-Backed 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. 13 W. & M. gage, APPLICATION OF METAL LATH, WIRE LATH AND WIRE FABRIC 18. (a) The weight of metol lath, wire lath, and wire fabric shall conform to the requirements prescribed in Table I. zinc-coated wire stiffeners spaced not to exceed 4 in. apart, and lb) Metal lath (except ribbed), wire lath, and wire fabric shall absorptive paper backing securely attached to metal in such a be attached to horizontal wood supports with not less than 6d manner as to provide full embedment of at least 1/16 in. of common nails or 1 Vi-in. roofing nails driven to a penetration of at plaster for at least one-half of the total length of the strands ond least 1 in., or 1 Vi-in. No. 14 W. & M. gage wire staples driven one-half of the total weight of the metal. The design shall be such home; ond shall be attached to vertical wood supports with not as to provide a mechanical bond and continuous metallic rein less than 4d common nails or 1-in. roofing nails driven to a forcement in at least two directions, for plaster. penetration of at least Vi in., or 1-in. No. 1 4 W. & M. gage wire (h) Metal Accessories such as corner beads, base screeds, con staples driven home. The Va-irt. rib lath, stiffened wire lath, and cealed picture molds, etc., shall be not lighter than No. 26 U. S. gage steel, zinc coated, with perforated or expanded flanges or sheet lath shall be attached to horizontal and vertical wood supports with nails or staples Va in. longer than required for the PJ clips shaped so as to permit complete embedment in the plaster. aforementioned bases, unless attachments are through the ribs, lil Channels shall be hot-rolled or cold-rolled steel, free from in which event nails or staples shall be of such length os to rust, of the following minimum weights per thousand lineal feet: provide at least 1-in. penetration in horizontal wood supports ft SIZE HOT-ROLLED COLD-ROLLED ond Vi-in. penetration in vertical wood supports. Common nails 3,4 in......................................................................... 3001b. I in........................................................................ 410 lb. 1 1 2 in............................................................................ 850 1b. 2 in........................................................................... 1260 1b. 276 1b. 332 lb. 442 1b. 553 1b. shall be bent over to engage at least three strands of lath. Other methods of attachment which afford equal carrying strength may be used. NOTE.--Ccoting with rust-inhibitive point is an added precautionary measure. 1 1936 Book of A.S.T.M. Standards, Part II, p. 97. BB0.18 149 25 SPEC (cl Metol loth, wire loth, and wire fabric shall be securely ottached to horizontal and vertical metal supports with No. 18 W. & M. gage, galvanized, soft annealed wire ties. (d) All attachments for securing metal lath, wire loth, and wire fabric shall be spaced not more than 6 in. apart. (e) Side laps of metal loth, wire lath, and wire fabric shall be secured to supports and be tied between supports ot not to ex ceed 9-in. intervals. (f) Flat expanded metal lath and wire lath shall be lapped Vi in. at the sides and 1 in. at the ends. Ribbed lath shall be lapped at the sides by nesting, and 1 in. at the ends. Sheet lath shall be lapped at the sides and ends by nesting. Stiffened wire lath and fabric shall be lapped by nesting ribs or selvage 1 in. at the sides, and 1 in. at the ends. (g) Special erection systems which afford equal carrying strength may be used, in which event lath shall be erected in accordance with the specifications therefor. (h) Application of flat expanded metal lath shall be storted one support away from a corner and be bent into or around the corner and carried on to the support on the abutting surface. Lath shall first be applied to ceilings and the sheets carried down 6 in. on to the walls and partitions. If lath is not used on ceilings the lathing may be started at the top of the wall and may be bent and carried up 6 in. on to the ceiling joists. Wherever possible the ends of the sheets of lath shall be staggered. Ribbed and sheet lath, and 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 nailed through the lath. Length of wire hangers shall not exceed 150 times their diameter, unless suitable stiffener-separators are provided for at least every alternate hanger. Where 1 by 3/16-in. inserts are used, the lower end shall be punched for %-in. bolts and allowed to project a sufficient dis tance below the bottom of the slab to permit the attachment of the hanger proper. Flat steel hangers shall be bolted to 1 by 3/16-in. inserts with %-in. bolts. Inserts used in cinder concrete or tile arch con struction shall be toggled, with 7-in. cross pieces bearing on top of reinforcing steel in cinder concrete or on top of tile arch con struction. In slabs of other kinds of concrete, inserts shall be secured to steel reinforcement or looped and embedded 2 in. in concrete. Wire or rod hangers shall be saddle tied or wrapped around main runners so as to develop the full strength of the hangers. Lower ends of flat hangers shall be bolted with %-in. bolts to runner channels, or bent tightly around runners and bolted to the main part of the hanger. (b) Main Runners for the various spacings of hangers shall be of the following minimum sizes: dCiEsNtTaEnRceOFceHnAtNeGrERtSo size of main rRuUnNNnEerRsS Up to 3 ft............................ 1 Vi-in. cold-rolled channels Up to 4 ft............................I '/2-in., 1.12-lb. hot-rolled channels Up to 5 ft............................2-in. hot-rolled channels or 11/2 by 1 V2 by 3/16-in. angles NOTE.--Other shapes of hot- or cold-rolled members of equal strength may be substituted in lieu of the above. Ic) Cross Furring for various spacings of main runners shall be of the following minimum sizes, but the maximum spacings for various types of lath shall not exceed those listed in the last column of Table I (Section 18 (a)): TABLE I.--WEIGHTS OF METAL LATH, WIRE LATH, AND WIRE FABRIC. Maximum Spacing of Supports for Weights of Loth Listed Wood Minimum Weights per Square Yard in Pounds Vertical Supports Horizontal Supports i Metal Wood Metal 12 to 13 Vi in. Flat expanded, 2.5 lb. Flat expanded, 3.0 lb. Wire lath, 2.48 lb. Flat expanded, 3.0 lb.* Flat expanded, 3.4 lb. Wire lath, 2.48 lb. 16 in. Flot expanded, 2.5 lb. Flat rib, 2.75 lb. Wire lath, 2.48 lb. Wire fabric Flat expanded, 2.5 lb.11 Flat rib, 2.75 lb. Wire loth, 2.48 lb. Wire fabric Flat expanded, 3.4 lb. Flat rib, 2.75 lb. Wire fabric c Flat rib, 3.0 lb. V-Stiffened, flat ex panded, 3.0 lb. Wire fabric c 19 in. Flat rib, 3.0 lb. 3/g-in. rib, 3.0 lb.d V-Stiffened, flat ex panded, 3.0 lb. V-Stiffened, wire loth, 3.3 lb. Sheet loth, 4.5 lb. Flot rib, 3.0 lb. V-Stiffened, flat ex panded, 3.0 lb. V-Stiffened, wire loth, 3.3 lb. Flat rib, 3.0 lb. 3/8-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. Flat rib, 3.4 lb. V-Stiffened, flat ex panded, 3.4 lb. V-Stiffened, wire lath, 3.3 lb. Sheet lath, 4.5 lb. 23 Vi in. Flat rib, 3.4 lb.* 48"in. rib, 3.0 lbd V-Stiffened, flat ex panded, 3-4 lb. Sheet lath, 4.5 lb. %-in. rib, 3.0 lb.d " 3.0-lb. flat expanded loth permissible for 12-in. spacing. 11 2.5-lb. flot exponded lath permissible for this spacing only for solid plaster partitions. r Paper-backed wire fabric No. 16 gage wire 2 by 2-in. mesh, with stiffener. d Rod-ribbed flot expanded lath of equol rigidity and weight is permissible on same spacings as %-in. rib lath. * 3.4-lb. flat rib lath permissible for this spacing only for solid plaster partitions.______ METAL CEILING CONSTRUCTION DISTANCE CENTER TO SIZE OF CROSS MAXIMUM 19. la) Hangers shall be of ample length. They shall be secured CENTER OF MAIN RUNNERS FURRING SPACING to steel reinforcement in concrete with cinder aggregate and may be secured to steel reinforcement or looped and embedded 2 in. in ..................................{:!!;: Seir*'"/ - concrete with other types of aggregates. For attaching carrying members directly to concrete or steel joists or beams, they shall ......................... Iltln.- Channels'*1* "J 19 - be of the following sizes: UP*2"-6i"...........................{ 44Tin. channels'^ '} TYPE OF CONSTRUCTION AREA SUPPORTED SIZE OF HANGERS Up to 3 ft.. ................................... b/4.in. cold- or hot-rolled 23Vi in. C\2 sq. ft., max. No. 10 W. & M. gage chonnels r. J Concrete ................................. j 16 sq. ft., max. L galvanized wire No. 8 W. & M. gage galvanized wire Up to 3 ft. 6 In...................................B/a.in. cold- or hot-rolled 19 in. channels Bar joists................................. .... 2 strands of No. 14 Up to 4 ft............................................ 3,^-in. cold- or hot-rolled 16 in. W. & M. gage gal channels vanized wire Steel beams ................................. .... Special clips NOTE.--Inserts or other devices of equal strength may be substituted Up to 4 ft.............................................1-in. cold- or hot-rolled channels 23Vi in. in lieu of the above. Up to 4 ft. 6 in...................................1 -in. cold- or hot-rolled 19 in. For supporting main runners of suspended ceilings, they sholl be not less than the following sizes: AREA SUPPORTED SIZE OF HANGERS channels Up to 5 ft............................................. 1-in. cold- or hot-rolled channels 12 in. 12 sq. ft., max.................. 3/16-in. round, mild-steel rods or No. 6 W. 6 M. gage galvanized wire 16 sq. ft., max...................7/32-in. round, mild-steel rods or No. 5 W. & NOTE.--Other shapes of hot-rolled or cold-rolled members of equal strength moy be substituted in lieu of the above. M. gage galvanized wire 25 sq. ft., max...................1 by 3/16-in. flats Cross furring shall be securely attached to the main runners NOTE.--It is highly recommended that all rod hangers be protected with a galvonized or cadmium coating and that flat hangers be similarly coated or protected with a rust-inhibitive paint. by special clips or by not less than 2 strands of No. 16 W. & M. gage galvanized wire or equivalent attachments. A | MUM ITsEP -SSTjflXES TG^YP.SUrM XOM P-A<N Y ' B13018 1 4 9 3 * STEEH. STUDS FOR SOLID PLASTER PARTITIONS 20. Steel studs for solid plaster partitions shall be of such size ond number and so located as to provide solid backing at atl corners. They shall be set to the required dimensions, properly aligned, made 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. Heads of openings shall be adequately reinforced. METAL WALL FURRING 21. (ol Attachments shall consist of nails driven securely into concrete or into masonry joints, or short pieces of 3/i-in. channels used as anchors driven into masonry joints. They shall be spaced not to exceed 2 ft. on center, horizontally, ond in accordance with the spacing 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 hos been damaged, in installation of at tachments, it shall be pointed with the some material before proceeding with the installation of the furring. (b) Horizontal Members shall be not less than 3/i-in. hot- or cold-rolled channels. They shall be spaced not to exceed 4 ft. 6 in. on center with the lower and upper channels not more than 6 in. from the floor and ceiling, respectively, and not less than Va in. from the face of the wall. They shall be securely tied to attach ments with No. 14 W. & M. gage galvanized wire or with 3 strands of No. 1 8 W. & M. gage galvanized soft annealed wire, or equivalent devices. (c) Verticol Members shall be not less than Va-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 securely tied to horizontal members with No. 14 W. & M. gage galvanized wire or saddle tied with 3 loops of No. 18 W. & M. gage galvanized soft annealed wire, or equivalent devices, 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.--Special devices which are the equivalent of, or better than, the nail or channel attachments may be used in lieu thereof. Special devices, securely attached to concrete or mosonry, in lieu of horizontal members, may be used for support of vertical members. (d) Band-Iron Furring shall be 3/i-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 of not less than Va in. into the masonry. WORKMANSHIP 22. All metal 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 PLASTER1 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 1. 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 subsfonces. Organic Impurities 3. The sand when subjected to the colorimetric 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 ore 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). (b) 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 1 17). Grading I Sieve Analysis) 2. (a) Sand for use in plaster shall be uniformly graded from fine to coarse within the following limits: PERCENTAGE RETAINED MAX. MIN. Retained on Sieve: No. 4 14760-micron! ............................................... 0 No. 8 (2380-micron) ................................................ 10 No. 30 ( 5`30-micron I ............................................... 60 No. 50 I 297-microni ............................................... 95 No. 100 1 149-micron! ........................................................... 0 15 70 95 <b) The amount of material finer than a No. 200 (74microni sieve, shall not exceed 5 per cent. Id The sieves shall conform to the requirements of the Standard Specifications for Sieves for Testing Purposes I 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 joint jurisdiction of the A.S.T.M. Committee C-7 on Lime ond Committee C-ll 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, but withdrawn and repub lished as tentative in 1936. These specifications are in effect a revision and consolidation of, and replace the former Standard Specifications for Sand for Use in Gypsum Plaster (A.S.T.M. Designation: C35l and the Tentative Specifications for Sand for Use in Lime Plaster (A.S.T.M. Designation: C 65-31 Tl, which specifications were accordingly discontinued in 1936. `'The term sand is defined m the Standard Definition of the Term Sand IA.S.T M. Designation: C 5SI of the American Society for Testing Mate rials. BB018 1494 ORIENTAL EXTERIOR STUCCO ADVANTAGES Streaking, due to insufficient mixing of stucco "on the job" is eliminated with USG factory-mixed stuccos. With job mixing, proportions of materials used are likely to vary, producing stuccos of varying qualities. With factory mixing quolity 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. COLONIAL Light stippletroweled slightly to produce highlights The mineral colors do not fade, nar 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. COVERING CAPACITY Base Coot--The approximate covering capacity of one ton of Oriental Exterior Stucco Base Coat (scratch and brown coats) under average conditions, is as follows: OAK BARK Vertical brush ing -- light dash of same color--dashed spots flattened with trowel i Plastering Brick and Metal Surface cloy tile lath Wire fabric Cement and Concrete cinder tile Sq. 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--See Specifications on opposite page. MODERN CALIFORNIAN Stippled-- medium heavy dash---flat tened vigor ously with trowel COLORS Supplied in 12 colors appropriate for exterior use and in 1 2 pastel shades for finishing interior plaster surfaces. ORIENTAL INTERIOR FINISH USG Oriental Interior Finish is fundamentally the same product as USG Exterior Stucco. Applied over gypsum plaster base coats in colors adapted to interior decoration, it brings all the advantages of Oriental Exterior Stucco to interior walls and ceilings. Its advantages are the same as those outlined above for Exterior Stucco. VERTICAL GRAIN Vertical brush ing--flattened with vertical trowel strokes a a >o-* CD 4s 43 Ul ORIENTAL EXTERIOR STUCCO MASTER SPECIFICATIONS NOTE--Notes are explanatory or advisory only and should not be included in the specifications. (1) WORK INCLUDED The following surfaces shall be finished with Oriental Ex terior Stucco: NOTE--Here list and locate all work included under this contract, together with the description of texture and color selected. If more than one texture or color is used on the work, list, locate and describe separately. manufacturer's directions approximately 6 in. apart on studs. Lap pieces of expanded metal 1 in. Carry metal around all cor ners to the first support. Thoroughly secure the metal at all openings. (6b) Diamond Mesh Lath--Apply the Self-Furring Diamond Mesh Lath across the studs. Lap lath Vz in. on sides and 1 in. on ends. Carry metal around all corners to the first support. Secure with 6d galvanized nails not more than 1 6 in. on centers horizontally and 6 in. on centers vertically. Drive nails well in and bend to engage at least two lath strands. (2) EXAMINATION This contractor shall examine all base surfaces to receive stucco and shall report to the architect in writing any defects which will detrimentally affect the work under this contract. Commencement of work under this contract, without such notice, will be construed as acceptance of the base surfaces, and full responsibility for the final condition of the finished work. (3) SAMPLE PANELS The contractor shall furnish on the site, where directed, three (3) sample panels one (1) square yard in area for the approval of the architect. Panels shall be executed on the base specified and in accordance with the architect's selection of textures and colors. The stucco work shall be finished in accordance with the approved panel or panels. (4) GENERAL All materials shall be as manufactured by the United States Gypsum Company. All work shall be performed by skilled workmen. (7) MIXING AND APPLICATION OF STUCCO (7a) General-- (1) Use a clean, tight mixing box, about 3 Vi x7 ft., raised about 4 in. at one end. Mix with a hoe. Clean the mixing box after each gauging. (2) Use only clean water, free from alkali and impurities; keep tools clean. Do not rinse tools in gauging water. (3) Do not mix more material than can be applied in about one hour. (4) Do not mix one gauging with another and do not re temper stucco after it has commenced to set. (5) Do not apply during freezing, cold or wet weather, nor when rainstorms threaten. NOTE--Freezing will cause disintegration as well as color dif ficulty. Slow or sluggish drying or a rainstorm before hardening takes place, generally results in cloudy effects and color distor tion. Careful treatment of this phase of stucco work is the greatest guarantee of uniformity in color. The material should not be applied to greasy surfaces. Integral waterproofing or anti-freeze solutions should not be used. (5) MATERIALS (5a) Red Top Expanded Metal Stucco Mesh--1 Vi-in. mesh, painted; weight [1.8] [3.6] lb. per sq. yd. Nails shall be Red Top Furring Nails. (5b) Red Top Self-Furring Diamond Mesh Lath--(Galvanized) (Copper bearing steel, painted) (Pure iron, painted); weight 3.4 lb. Nails shall be 6d galvanized. NOTE--Select either for frame construction as desired. Where Gyplap as recommended is used as a non-shrinking, fire-resisting sheathing use clause Jb. (5c) Base Coat--Oriental Exterior Stucco Base Coat. (5d) Finish Coat--Oriental Exterior Stucco Finish, color No. (specify). (6) LATHING NOTE--Includ: on!', for frame construction. (6a) Expanded Metal--Apply the expanded metal across the studs. Secure with self-furring nails in accordance with the (6) Keep stucco in a dry place. Do not store on ground. (7b) Base Coats--Add only clean water to Oriental Exterior Stucco Base Coat and mix to the proper consistency. Apply in two coats. The first coat shall be % in. to Vz in. thick, scratched. After from 3 to 5 days apply the second coat not less than 3/a in. thick properly rodded and floated to a true plane. Rake or thoroughly scratch each coat to provide a key for the succeeding coat. Allow second coat to cure from 7 to 10 days. In hot weather, wet down each coat daily. (7c) Finish Coat--Add only clean water to Oriental Exterior Stucco Finish and mix to the proper consistency. Allow finish coat to soak from 20 to 30 minutes. After the base coats are completely dry, spray wall sufficiently to cut suction (avoid drowning surface). Apply finish coat not less than Vs in. or 4s more than Va in. thick, as required for the finish selected. The finish shall be: ^O' NOTE--Here specify or describe (lie finish selected. USG Bul letin OS-3 describes in detail the methods used to obtain various textures. Q i'o a a SHEETROCK ADVANTAGES Sheetrock will not bum or transmit high temperatures. Atmospheric changes will not cause it to contract or expand. It will not warp or buckle. Joints between boards are tight and, when properly finished, remain that way, and may be completely concealed. Sheetrock contains nothing to rot or decay; walls and ceilings are durable and lasting. Made in large, light weight units which fit standard spacing in wood frame construction, Sheetrock is quickly erected. Recessed-Edge Sheetrock--Recessed-Edge* Sheetrock used with Perf-A-Tape* makes possible a type of wall construction which offers stronger, smoother, more permanent reinforcement at the joints than is provided in the usual wall constructions. This added reinforcement at the joint is entirely concealed, and pro vides a smooth, shadowless,permanent base for any type of decoration. The strength of the joints produced by this construction permits application of the boards horizontally on side walls and at right angles to ceiling joints without the use of headers, increasing bracing quality of the boards and resulting in stronger construction around joints at corners and openings. May be applied vertically. Insulating Sheetrock--A thin, smooth sheet of aluminum foil applied to the back of Sheetrock gives the boards in construction an insulating efficiency equivalent to 1/j* insulation board con struction (.66 B.T.U.). This foil is also one of the most effective vapor barriers known. Finishes--Plain Sheetrock, which permits any type of decoration, is available with recessed or square edges, insulated or uninsulated. Wood Grained Sheetrock, available in walnut or knotty pine, simulates the natural wood finishes, by a photographic process which reproduces the grains perfectly. It is available with square edges, insulated or uninsulated. Sheetrock Tile Board is so scored that when the surface is finished with lacquer or enamel, a close resemblance to ceramic tile is pro duced. Tile impressions are 4^' square. Available with square edge. Recessed-Edge offers a wallboard construction that makes possible stronger, smoother, and better-looking wallboard jobs. When sheets are nailed in place, re cessed edges form a channel at each joint. Channul is Hllud with special ce ment, quickly and easily applied. SIZES AND RELATIVE COSTS Thickness Width Length Relative Cost Perf-A-Tape, strong, perforated liber, with cham fered edges is em bedded in cement. Recessed-Edge Square Edge ,'A in- 4 ft. 6, 7,8,9,10, 11 and 1 2 ft. !4 in. 4 ft. 6, 7, 8,9,10, 11 and 12 ft. n i Walnut Finish Knotty Pine Finish 3/a in. 4 ft. 6, 7, 8, 9 and 10 ft. in Insulating Any of the above are available with insulating foil back in sizes given at slight additional cost. Tile Board Vs in. 4 ft. 6, 7, 8, 9 and 10 ft. IV *Ktg. TradfMurk * "I" indicate* least expensive,- "II" indicates more expensive than "I", etc. After drying, ce ment is sand papered, assuring smooth surface for any decoration# | 1ttfl'NTCiE 35T4AXE-5 SGXT-S UM 3C;M P-A*N'Y 3 B13018 1 4 9 7 0 GYPLAP FIREPROOF SHEATHING mmf1- WOOD SIDING CONSTRUCTION BRICK. VENEER CONSTRUCTION GY,P-T^ICK 24"'WIDe . ;. LONa . lath,--- SHINGLE CONSTRUCTION STUCCO ON FRAME CONSTRUCTION Gyplap is made by casting a gypsum core within a heavy, waterresistant fibrous envelope. The long edges of the 2 ft. 0 in. by 8 ft. 0 in. boards are tongued and grooved. Each board is a full half inch in thickness. Costing less to buy and less to erect than wood sheathing, Gyplap provides much needed weathertightness (building paper not re quired) and bracing strength at this important location in a wood frame building. The large units span the spaces between seven studs, tie them together, and are nailed directly to them with ease and dispatch. The horizontal tongued and grooved edges fit tight--the vertical joints are made over the studs. Gyplap is more quickly ond easily cut than lumber and no allowance for "lap" is required when Gyplap is used. DEFLECTION OF SHEATHING WITH DIFFERENT LOADS From Armour Institute Strength Tests Wood Frames and Is" x 8" Wood Sheathing | Applied j Applied Diagonally Horizontally Panel 4' x 8' j Panel 4' x 8' Load in Lbs. Deflection in Inches 100 500 1000 1500 2000 2500 3000 3500 4000 i ; .01 .05 .12 .19 .29 .46 .60 .97 1 .10 ! 1.02 : 4.19 : 9.24 10.44 1 1.54 12.09 Loads at end of test 3925 lb. 3150 lb. BBOJ g Wood Frames and Gyplap Sheathing Applied Horizontally Panel 4' x 8' Deflection in inches .00 .05 .09 .13 .20 -b 'O CO .27 .39 .53 .84 4425 lb. */vYtj. Trade Mark 31 Weatherwood products build; insulate; decorate; and quiet sound; in one /ow*cosf operation. Weatherwood is made of wood fibres, felted into board form and knit together by a process which permits accurate control of strength and in sulating value. Due to diversity of sites, many decorative effects are obtainable. Weatherwood requires no decoration, but it con be painted to achieve effects other than those permitted by its own coloring. ADVANTAGES The insulating value of 1 in. of Weatherwood is equal to a 15-in. brick wall, 3 in. of lumber or 37 in. of concrete. It possesses effi cient sound absorbing properties. Weatherwood is strong. Its rigidity adds structural strength. The tough surface resists scuffing and marring. Tests on Weatherwood Hi-Lite finish gave an average light reflection factor of 70%. Economy is provided since all these advantages are combined in one material and are, therefore, applied at one time. Painting is economical. Weatherwood absorbs paint slowly, requiring less than similar fibrous products. Conforms to Government Specifications--Weatherwood meets all re quirements of Federal Specifications LLL-F-321a -- Insulating Fibre Board. ACOUSTICAL TREATMENT Speciol low density Weatherwood tile is available where additional sound absorption is required. USES Weatherwood is used in o wide variety of buildings, including homes, stores, offices, theatres, churches, auditoriums, restaurants, taverns and mortuaries. COLORS AND TEXTURES Weatherwood is made in shades of ivory, grey and tan, to har monize with most interiors. These colors are designated: as HiLite; Blendtex, a mixture of greys and tans; and Grey-Tan. Tex tures'are: Regular, which is a plain but not ironed finish; and Textured, a slightly roughened finish. TILE Site Thickness Color and Surfoce Edge 1 2 x 1 2 in. 12 x 24 in. 1 6 x 1 6 in. 16 x 32 in. 24 x 24 in. 24 x 48 in. These sizes cross-scored only* * 12 x 24 in. 16 x 32 in. 24 x 48 in. | Vz in. ! regularly; j 1 in. on ! order i Yz in. regularly; 1 in. on order PANELTILES Vi in. Hi-Lite in Textured or Regular; i Ogee 1 in. Hi-Lite Textured only Vz in. Hi-Lite in ! Regular or Textured; ! 1 in. Hi-Lite Tex tured only Ogee These sizes may be cross-scored* * 1 2 x 24 in. 16x32 in. 24 x 48 in. % 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 Va in. Hi-Lite Textured only Ogee 6, 8, 10, 12 or 16 in. wide x 8, 9, 10 or 12 ft. long BOARD PANELS c Blendtex Textured only; Hi-Lite on order Ogee Long Edges : 4 ft. wide x 6, 7, 8, 9, 10 or 12 ft. long; 4 or 5 ft. long on order Yb, Vi in. regularly; 1 in., 1 Vi in. or 2 in. on order Hi-Lite in Regular; Grey-Tan in Tex- tured; Hi-Lite Textured, on order only Square i i **CROSS SCORED TILE Tile and Paneltile indicated may be cross scored to represent two square tiles. Advantages are that two tiles are applied with the speed of one and they may be applied without regard to joist spacing. USG Self-Spacing, Floating Joint with Ogee Edge. Cross scored tile applied with out regord to joist spacing. Weotherwood Tile applied with adhesives to flat surfaces. C C3 CO O CD b vO USG Sheetrock Grain Boards present the appearance of wood with the qdvantages of gypsum. The graining, knots and coloring peculiar to Wal nut or Knotty Pine are transferred to the face of the Sheetrock by photo graphic and printing processes, permitting faithful reproduction. The final finish is a factory applied lacquer which protects and preserves this surface. QUICKLY APPLIED 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. The durability and non-warping qualities of Sheetrock are present in Sheetrock Grain Boards. They will not burn nor support combustion, there by adding fire protection. FINISH One of the most important advantages of Sheetrock Grain Boards is that it can be used without decoration. Where excessive wear is expected, or o glossy finish is desired, the panels may be waxed or varnished, offer the application of a coat of shellac. MOULDINGS Although Sheetrock Grain Boards may be used without panel strips of any kind, wood paneling is more faithfully simulated by using a typical panel design. Such designs can be simple and inexpensive. An almost unlimited variety of effects can be obtained. Stock and special mouldings, in fact virtually anything available for use over wood paneling, can be used with Sheetrock Grain Boards. ECONOMICAL Mouldings are stained to harmonize with the board, adding authenticity to the appearance of the Sheetrock itself. The low cost of Sheetrock combined with the saving in decoration cost make Sheetrock Grain Boards economical. Further savings occrue through ease and speed of application. SIZES 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. Sizes Thickness 1 ! Weight CLEANABILITY 4 x 6 Feet......................... 4 x 7 Feet........................ 4 x 8 Feet........................ 4 x 9 Feet......................... a in. 4 x 10 Feet......................... 1500 Pounds, Approximate Shipping Weight Sheetrock Grain Boards are easily cleaned with a mild soap and water. RECOMMENDED USES Sheetrock Grain Boards ore used in libraries, dens, hallways, fin ished basement and attic rooms, shops, offices, restaurants, clubs and display rooms. EB018 1501 V 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 Weotherwood Hardboards may be sowed, cut, glued, nailed or laminated. They are flexible and can be bent to small diameters. Made in large sheets, they are quickly applied. Weotherwood Hardboard for interior use does not need any protective paint, varnish or wax treatment. When used outside, or where the natural color or surface gloss is not suitable. Weatherwood Hardboard may be painted, stained, enameled or finished in any manner. USES Principol uses are wainscots, walls, ceilings, folding partitions and sliding panels. FOUR TYPES Densboard -- Lightest weight, least expensive Hardboard. Sheet sizes: 4 ft. x 2, 3, 4, 6, 8, 9, 10 and 12 ft. 14 in. thick. Structoboard -- Less dense than Hardboard but rigid and econom ical. Sheet sizes: 4 ft. x 2, 3, 4, 6, 8, 9, 10 and 1 2 ft. 14 in. thick. Weotherwood Hardboard -- Hardest, densest untreated Hardboard. Scuff-resistant. Sheet sizes: 4 ft. x 2, 3, 4, 6, 8, 9, 10 and 12 ft. Vs, 3/i6 or V* in. thick. Treated Weotherwood Hardboard--Same general characteristics as the other USG Hardboards but harder and denser. It resists water absorption. Made plain or with 4x4 in. indentations to give it a tile-like effect. Especially suited for high humidity environments: bathrooms, kitchens, laundries, etc. Treated Weotherwood Hardboard is Vs, 3/is or 14 inch thick. Sheet sizes: 4 ft. x 2, 3, 4, 6, 8, 9, 10 and 12 ft. Weotherwood Tile Board is Vs inch thick, 4 x 12 ft. sheets. BBOIS 1503 USG Sheelrock Tile Board produces o cream colored finished wolf or I wainscoting with tile-like impressions 41/% inches square. Since it is made of gypsum board it will not warp or buckle, and it is incombustible, add ing fire protection. RECOMMENDED USES Sheetrock Tile Board is used for bathrooms, kitchens, lavatories, dairy buildings, restaurants, in fact, any place where a tile design is required. Ideal for wainscots. The large sheets make joints be tween boards unnecessary in small rooms. EASILY DECORATED It can be decorated 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 ony 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. Point covers well over Tile Board. 1 Odd-sized pieces are eosily cut from stondord sized boards. 8 *0 fra PYROBAR GYPSUM TILE For: partitions and furring; beam, girder and column fireproofing USG PYROBAR GYPSUM TILE FOR PARTITIONS, BEAMS AND GIRDERS Fireproof The- fire-resisting qualities of Gypsum Tile have been established by many tests during the past 38 years. Pyrobar Partition Tile used in conjunction with Pyrobar Beam and Girder Tile provide a complete fireproofing system. Ease of Erection Pyrobar Beam and Girder Tile, easily cut and fitted, meets the wide variety of conditions which construction imposes. Partition Tile can be laid rapidly, as each unit provides 2Vi sq. ft. of wall surface. True, square edges make it easy for the work man to lay walls straight and plumb; saving plaster. Light in Weight Pyrobar Tile weighs from 24 to 46 per cent less per square foot than clay tile of an equal thickness. This enables the designer to effect worth-while savings in steel for columns, girders and beams. It also reduces freight, hauling, hoisting and la!>or charges. Pyrobar Partition Tile Made in jurring, solid and hollow types. Pyrobar Par tition Tile arc machine-made and moulded extremely accurately. All arc scored to receive plaster except when specially ordered, when smooth surfaced tile can be fur nished. Adaptability to Alteration One of the important requirements for partitions in office build ings, hotels and many other buildings is that they be easily re moved or altered. New openings in Pyrobar Partitions may be cut out with a saw. New trim fits over the edges of the partition tile, saving replastering. In most cases units removed can be sal vaged for other uses. Fixtures Readily Attached Light trim can be nailed directly to Pyrobar Partition Tile with out shattering or breaking it. Heavy fixtures are attached by bolt ing through the partition. Economy Pyrobar is economical for partitions because less plaster and mortar are required. There are 40 per cent fewer joints in a wall of Pyrobar Tile than in a wall of the same thickness but having units with only 1 sq. ft. of face surface. This results in important savings of mortar. Practice has shown that Pyrobar Tile require 20 per cent less plaster than is used over clay tile. This is because they are cast in steel moulds, assuring straight edges and true faces. They are dried, not burned, and consequently are not warped or distorted. The true, even surface requires no extra plaster for truing up to grounds. Pyrobar Tile is also economical because of the ease and rapidity of erection of large units, and because of its high percentage of salvage when changes are made. _ )8 Pyrobar Beam and Girder Tile For fireproofing steel beams and girders. Steel at 1000 F. begins to loose strength rapidly. It is impossible for Pyrobar-protcctcd steel to reach a higher temperature than 212F. until the Pyrobar has completely calcined. Calcina tion of and heal transfer through Pyrobar requires hours under severe conditions. Good Plaster Base Gypsum readily bonds with Gypsum. Pyrobar is therefore an ideal base for Gypsum plaster. Even when not plastered Pyrobar present a good appearance, clean-cut, uniform and white. Three-inch hollow Pyrobar Partitions plastered on both sides cost but little more than the most economical plastered wood stud partition, and in most locations show useful savings in first costs and maintenance over other partition constructions generally used in fireproof buildings. (See tabular comparison of partition costs on Pages 4 and 5. Erecting All fireproofing shall be erected in strict accordance with the United States Gypsum Company's standard details. All units shall be laid in gypsum mortar with full flush joints, true to line and plumb. a So3 CD CJ) 0 01 PYROBAR PARTITION AND FURRING TILE--SIZES AND WEIGHTS Size of Pvrobar, Gypsum Tile, In. Recom mended heights for each size Weight tile per sq. ft., lb. 1 J-4 in. Split....... 1 J^xl2x30 2-in. Split........... 2x12x30 2-in. Solid.......... 2\12x30 3-in. Hollow....... 3x12x30 3-in. Solid...........3x12x30 4-in. Hollow.......4x12x30 5-in. Hollow 5x12x30 6-in. Hollow.......6x12x30 Furringf Furring f 10 feet* 13 feet* 15 feetj 17 feet* 20 feet* 30 feet* 4.9 6.4 10.0 10.0 13.0 13.0 17.2 19.0 Underwriters' Laboratories recommendations. Weight mortar per sq. ft., lb. Weight plaster one side per sq. ft., lb. 1'2 >n. grounds Total weight plastered, one side, per sq. ft., lb. Weight plaster two sides per sq. ft., lb. Total weight plastered, two sides, per sq. ft., lb. Approx. mortar requirements per 1000 sq. ft. Pounds Set Fast Cement Cubic yards sand 1.4 3 7.9 500 0.625 1.4 3 9.4 ................. ................. | 600 0.75 1.5 3 i 13.0 6 | 16.0 i 600 , 0.75 2.0 3 13.0 6 i 16.0 | 800 . i 1.00 2.0 3 1 16.0 6 i 19.0 1 S00 i 1.00 2.5 ; 3 16.0 6 | 19.0 900 1.125 2.75 i 3 20.2 6 23.2 | 1000 i 1.25 3.0 j 3 j 22.0 6 25.0 j 1100 j 1.40 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. PYROBAR BEAM AND GIRDER TILE--SIZES AND WEIGHTS * MASON'S LIME MASONRY MORTARS --WATERPROOFING--IN CONCRETEWHITEWASH . . . HIGH CALCIUM -DOLOMITIC- HYDRATED OR QUICK USG MASON'S LIME IN BUILDING CONSTRUCTION Water-liglUness and durability are the criteria of quality in masonry. 11 thoroughly burned brick, tile, hard dense stone or concrete are used and construction is correct, excessive water penetration can occur only at joints. Lime mortars are the most effective means of providing watertight joints. Harsh Brick Mortar Without Lime Does Not Fill Spaces in Wall 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 fails 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. Showing Separation of Aggregate from Cement 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, preventing segregation, and reducing the relative amount of water required. O Jjj High Calcium and Dolomitic Limes Quicklime or hydrated lime can be produced from either high calcium limestone or dolomite (high magnesium lime stone). In 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. Uol vl MORTAR MIXES FOR VARIOUS TYPES OF MASONRY Masonry Type Type of Construction Loading Mortar Proportions (Volume) Lime: Cement: Sand Common and face clay, Dwellings, garages and Any condition of loading shale or sand-lime brick similar construction for such types of con struction 1:0:3 Remarks Clay or shale brick Walls and piers below Ordinary distributed grade continuouslyexposed 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 w'alls and piers Ordinary distributed sandstone, terra cotta fac above grade Heavy concentrated ing and trim Earthquake tremors Common and face clay, Interior walls and piers Ordinary distributed shale or sand-lime brick, above and below grade Heavy concentrated concrete brick Earthquake tremors 2:1:9* 2:1 : 9* 2:1 : 9* 2:1 : 9* 2:1 : 9* 2:1:9* Use non-staining Portland cement and washed sand Hollow clay tile, concrete Exterior walls above grade Non-bearing partitions, ex block, concrete tile, cinder and interior partition walls terior and hearing walls block and partitions 2:1 : 9* 2:1 : 9* 2:1:9* Notes: Materials to conform to current "A.S.T.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. The sand content is to be varied in accordance with its quality in the particular market involved and its proportion may be reduced if greater mortar strength isdesired. From "Masonry Mortar, Bulletin 321" published by National Lime Association. USG BRANDS OF MASON'S LIME 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 suggested that the USG local brand be specified. The brands follow: Rep Top Mason's Hydrate..................50-lb. paper bags Snowdrift Mason's Hydrate..............40-lb. paper bags Marble Rock 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 USG Pebble Mason's Quicklime............180-lb net wood barrels or steel drums USG Lump Lime is shipped in bulk. USG Crushed Mason's Quicklime.... 180-lb. net wood barrels or steel drums Peerless Pulverized Mason's Quicklime... 100-lb. paper bags and 180-lb. net wood barrels or steel drums Peerless Crushed Mason's Quicklime.. 180-lb. net wood barrels or steel drums Marble Rock Pulverized Mason's Quicklime........60-lb. paper bags and 90-lb. steel drums Marble Rock Pebble Mason's Quicklime... .90-lb. paper bags, 90-lb. steel drums and ISO-lb. wood barrels above brands may be shipped in bulk. DIRECTIONS--HYDRATED LIME Hydrating--First pour water in box, then add Hydrated Finishing Lime to the water, distributing it uniformly. The water must cover the lime. Use sufficient water--about 6'/2 gallons to 50 pounds of hydrate, an amount sufficient for a soft, wet paste. Soaking--Allow to remain undisturbed for at least 6 hours, preferably over night. Protect from frost and drying up until used. Soaking develops plasticity, and putty should not be allowed to dry after it has reached the correct buttery consistency'. Mixing--Mix putty with sand or with sand and cement, adding sufficient water to bring mix to a hodablc consistency. DIRECTIONS--QUICKLIME Slaking--Add water and lime gradually while mixing, con stantly agitating mixture to prevent burning of unslakcd portion. Mix to a thin consistency and screen through a quarter-inch mesh screen. If dolomitic lime is used, the lime must not be hoed or stirred except to level out any hot, dry areas which do not receive water. Aging--After screening, run mixture into aging box. Lime must he aged until it is cool and the putty is hodablc. Lime putty producctl from quicklime should never he used until aged at least one week, and a longer time is preferable to assure complete slaking. Mixing--Mix putty with sand or with sand and cement, adding sufficient water tu bring mix to a hodablc consistency. Cfl O 03 S in ft c STRUCTURAL INSULATION Weatherwood Plaster Base--Weatherwood Asphalt Coated Sheathing Weatherwood Roof Insulation --Weatherwood Tile and Plank Weatherwood Building Board . . . Insulating Sheetrock--Insulating Rocklath #! GUIDE TO THE SELECTION OF STRUCTURAL INSULATION PRODUCTS PRODUCT Weatherwood InsulatingPlaster Base I'luin or MFasnaf" Weatherwood Asphalt Coated Sheathing SIZES !Sx4S in. THICKNESS ij, * anil 1* in. APPROX. SHIP. \VT. TER M SO. IT. 725 lbs. 2x8 ft. 4 ft. \V. x 8, 9, 10 or 12 ft. 3x8 ft. = : in. 33 in. in. i 1225 lbs. 1225 lbs. 750 lbs. JOINTS SPECIAL ADVANTAGES V-Toint Long Edges Fasnap Joint Reinforcement: Rein forcing snaps quickly into place to give horizontal joints additional plaster reinforcement. Ton kmc nnd Groove Long Edges Sized for one man to handle. Ap- Clied horizontally for nailing visi ilily. Square Can be used as structural sheath ing under all types of frame sid mg, brick veneer or stucco con structions. V-Toint Long Edges Economical for low cost construc tion. Weatherwood Roof Insolation 22x47 in. Insulating Rocklath-- Reflection Type Insulating1 Sheetrock-- Reflection Type 16x32 in. 10x48 in. 4 ft. \V. x 6, 7, 8, 9, 10, 11 or 12 ft. Vs in. 1* in. 11TM* in. 2* in. *s >u. in. in. 14 in. in. >2 in. 1 Finished Surface Products PRODUCT SIZES THICKNESS Sheetrock Orain 4 ft. \Y. x 6, 7, Boards-- 8, 9, 10 ft. Reflection Type WTtieanaltahteltriaw*ood Ballding1 Board 4 ft. W. x 4*. 5*, 6. 7, 8, 9. 10, 12 ft. 1* in. Weatherwood Tile 12x12 in. 12x24t in. 16x16 in. 16x32t in. 24x24 in. 24x48* in. APPROX. SHIP. \VT. PER M SQ. FT. 1300 lbs. S80 lbs. 725 lbs. 1450_ Ibs^ ' 2l2S_jbs^ ~ 2300 lbs. 725 lbs. 1450 Iba. 725 lbs. 1450 lbs. 2125 lbs. 2300 lbs. 1550 lbs. 1550 lbs. 2050 lbs. 1050 lbs. 1500 lbs. 2000 lbs. COLORS Natural Color Ivory and Gray-Tan Ivory and Gray-Tan Blend Square Edge or Offset Excellent insulator because of its low density. Round Edge Square Square or Recessed Fireproof; aluminum foil backing provides effective insulator and vapor barrier. Fireproof; aluminum foil backing provides effective insulator and vapor barrier. FINISHES Walnut and Knotty Pine Skin and Textured JOINTS Square Square Butt Joints SPECIAL ADVANTAGES Photographic reproduc tion of wood panels. Finish resists scratching, scuffing; high light re flection. Skin and Textured Ogee Exclusive USG Blendtex gray and tan shades blend readily with most interiors. 0 Weatherwood Finish Flank Weatherwood Paneltile 12x24*t in. 16x32* in. 24x48* in. 6, 8, 10. 12 oi 16 in. \V. x 8, I 9, 10 or 12 ft. 1 L. | 1x4 ft. 2x4 ft. 4x4 ft. 4x8 ft. 1250 lbs. 725 lbs. 125U lbs. Gray-Tan Blend Ivory Textured Textured Textured Ogee 4 Sides Ogee Long Edges Ogee 4 Sides Can be applied without regard to stud or joist spacing. Can be applied vertically or horizontally. Large units make for quick installation. to o CO These sizes not stocked, therefore subject to delay in shipping. tCan be cross-scored to represent two square tiles. Weatherwood Insulating Products --Made of 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 Page 32 for fur ther Weatherwood data. Sheetrock--Fireproof wallboard made of gypsum. Nailed over wood frame work to form the finish for interior walls and ceilings. Will not burn or transmit high temperatures. Contains nothing to rot or decay. Sheetrock walls and ceil ings are strong and lasting. Sec Pages JO, 34, 35 and 37. Rocklath--Fireproof lath made of gypsum. Has the same properties as Sheetrock. Made in three types: Stand ard Rocklath, Perforated Rocklath, which has evenly spaced perforations to provide an extra mechanical l>ond with the plaster, and Insulating Rocklath, which has a backing of aluminum foil that provides high insulation value and an effective vapor barrier. See Page 12. The Conductivity Ratiny of II cathcriooud products is approximately .33 B.T.U. per in. of thickness C4I o >0 Weatherwood Insulating Plaster Base (Left) Patented "Fasnap" rein forcement, easily snapped into place, reinforces 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) Aluminum foil backing resists inward passage of radiant heat in summer as a mirror reflects light, and outward movement in winter. Aluminum foil makes effi cient vapor barrier. Insulating Sheetrock Reflection Type (Right) Has same heat reflection qualities as Insulating Rocklath. Extensive tests have shown that the aluminum foil, 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 3 (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. BBOIS 1510 43 UsS BLANKET INSULATION RED TOP INSULATING WOOL i Red Top Insulating Blankets--Mineral wool fibres of great strength and uniformity, clean and free from non-insulating ma terial are felted into light-weight blankets and securely fixed to an efficient asphalt-type va[>or 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 accumula tion 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. Made in three thicknesses: One inch, medium and thick, in rolls of 50, 75 and 150 square feet (net area), respec tively. Also available in bats 3 ft. long in the same thicknesses. 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 per inch. Range of Sizes Made in: 1-in.; Medium; and Thick blankets, to meet various climatic, job and price requirements. Light Weight 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, 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. B B O lB 1511 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. $ Walls The following heat transmission figures have been calculated on the basis of values recommended by the 1940 Guide of the American Society of Heating and Ventilating Engineers. Values 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. 2*4 STUDS, ROCKLATH AND PLASTER Exterior Wood siding Wood shingles Stucco Brick veneer No Insulation .25 .25 .30 .27 Red Top Insulating Wool Blankets Inch Medium Thick .12 .084 .068 .12 .084 .068 .13 .089 .071 .13 .086 .070 . Y Ceilings These figures fulfill the same purpose as those above except that they apply to ceil ings. Same bases for calculations were used. The only difference is that ceiling figures were based on still air both sides. TYPICAL--WOOD JOISTS 2*6, ROCKLATH AND PLASTER Without attic flooring With yellow pine flooring No Insulation Red Top Insulating Wool Blankets Inch | Medium Thick .61 j .17 .1 1 .076 .28 .13 .087 .066 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 2*6. ROCKLATH AND PLASTER CEILING LOWER SIDE 2 I S I &TOCIQ Type Roof Wood shingles on wood strips Asphalt or rigid asbestos shingles Composition, slate or tile roofing on wood sheathing No Insulation a. .32 Red Top Insulating Wool Blankets 1 Inch Medium Thick l .13 | .088 .067 ! .14 ! .091 I .068 45 ASPHALT ROOFINGS ROLLS-INDIVIDUAL-STR1P SHINGLES-LOCK SHINGLES THICK AND SQUARE BUTTS . . . QUALITY - COLOR - USEFUL DESIGNS USG ASPHALT SHINGLES FORTIFY THE ROOF AGAINST FIRE, RAIN, SNOW AND WIND When you select a roof for your home, you have ever)- right to expect that its beauty should be more than "skin deep". Like people, some roofs show their age rapidly while others seem to retain their handsomeness through the years. The natural beauty of USG Asphalt Roofings and Shingles goes more than skin deep--it is built into the product from front to back, side to side and top to bot tom. That's why any USG asphalt roofing material will fortify your roof--fortify it against fire, sun, rain, snow and wind. This "fortification" provided by USG Asphalt Shin gles and Roofings is no accident. Rigid control over raw materials and manufacturing processes places exacting requirements on the products at each phase of their manufacture. Thus, your USG roofing material is forti fied at each step of production so that it, in turn, may fortify your roof. 520 U. S. municipalities have outlawed inflammable roofs as a menace to the safety of their communities. If you live in one of a certain group of states, your fire insurance rates can be reduced as much as 33y3 per cent by applying a USG Asphalt Roof. Resistance to the ravaging attacks of sun, rain, snow and wind adds years to the life and beauty of your roof and reduces its cost per year to an almost negligible amount. It's not only important to fortify your roof with a USG Asphalt Roof--it's also thrifty. en e o I-- CD i-- IU--! CJ felt base. A USG THICK BUTT SHINGLES 9 FOR MASSIVE BEAUTY THAT ENDURES The USG Thick Butt Shingle was developed to re place flat uninteresting surfaces with deep rugged shadow lines, producing a roof which has quality and weather resistance written boldly in its every line. Extra thickness of life-giving asphalt is built up at the base of the shingle and carried back well beyond the exposed area. Ordinary Thick Butt Shingles are made in alternating layers of granules and coating, applied one over the other to build up bulk. But USG Research sought a bet ter way--found it--and proved its superiority. With the USG "Monolithic Method" the extra thick ness is composed of one moulded block of asphalt mastic bonded securely to the felt base and affording a bulldog grip on the granules which are embedded into its sur face only. A solid, unified base replaces the "layer-cake-method". Full bodied mastic replaces the under layer of granules. Asphalt is the life of the roof--it is the asphalt that has the ability to fight sun and weather. Therefore, the "Monolithic" base developed by USG Research gives the shingle a unified body without layers to separate-- composed solely of asphalt mastic and located at the weather-line where wear is most severe. The Thick Butt Shingle, made by the scientific "Mono lithic Method", is further evidence that "USG always means quality". It is made in modern blends and solid colors, plain or textured. TEXTURING PRODUCES THE BEAUTY OF CYPRESS GRAIN PLUS OTHER WEAR-WORTHY ADVANTAGES Texturing produces a rustic weathered effect combined with advantages which defy weather. Steam heated en graving rolls deep-etch the grain into the face of USG Thick Butt Shingles without danger of fracturing the felt because of the heavy cushion of asphalt mastic. The granules are embedded more firmly into the base by this method. Texturing has the same effect as corrugation in stiffening the tabs to keep them from lifting in the wind. The grooves form drainage channels which tend to con duct the rain away from the cutouts. The texture lines eliminate surface checks and cracks. They also act as joints to absorb expansion. Adding greater strength and security to the rugged beauty of cypress graining, the USG Textured Thick Butt Shingle has won its leader ship on merit. erooa ASBESTOS CEMENT ROOF SHINGLES-SIDINGS GLATEX, THE ORIGINAL MINERAL GLAZE FINISH ASBESTOS CEMENT ROOF SHINGLES AND SIDING USG Asbestos Cement Roof Shingles an<l Sidings are made of asbestos fibres and Portland cement felled together and set under great pressure. They are permanent, economical, waterresisting and fire-resisting. They carry the highest ratings of the Underwriters' Laloratorics, Inc. Sidings are specially treated for water rcpcllency. I olors are true and uni form. The Glatex Process--A new method of manufacturing as bestos cement siding which gives it a harder, more durable finish than ever before produced. It is fully clcanahle, non-porous and non-ahsorbent. The Glatex finish is a mineral glaze baked on and into the shingles at high temperature. Oil, grease, soot and other stains due to ordinary exposure are easily removed with soap and water. Glatex is available at present only in No. 600 Siding in white, cascade green and silver brown. < i ROOF 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: 250 lbs. 0 B13018 1515 No. 300 USG Dutch Lap Shingles--Idealized wood grain texture, uniform thickness. Class B Underwriters' Label. Gray, green, black, red. Size 16 x 16 x si in. Approximate weight per square: 266 lbs. Note: Drawing shows shingles applied with % lap. For Vi lap, apply in same manner, using alternate set of nailholes. SIDINGS No. 600 USG Wavy Butt Siding--Idealized wood grain texture, uniform thickness. Bright gray, white. Size 12x27 x & in. Approximate weight per square: 183 lbs. No. 600-A USG Wavy Butt Siding--Same texture. Bright gray and white. Size 9 x 27 x 35z in. Approximate weight per square: 186 lbs. Old wood siding ^ Old wood siding S -------------------------------- ---------- 9 iZztTttyfa.i ^7 Corner'.Boards * * ' .'.'USG Cushion Felt . 1 Asphalt Felt Joint' Str , .'/rtT^r-'Flashing '. : | 0'. USG. Cushion Felt ! B. t 01 IfAsj>hait;Fejt;ioint-i;t WavyButt or. Thatch- Butt!. Asbestos-Siding Shingles! l sj t 11 ii 1 *i Wavy:Butt- orthatch Butt|. AsbcstosSidingShinglcsi Sxi:. Cant; ^np, 7 r 1r nr1 \ i 1 'A Prelection fBpdrip' 1 i ! APPLICATION OF FIRST COURSE .' USG .'Cushion Felt* . < rushing V'. Old wood siding Jr1?:Joint Sfcnps;^*/- . Note thatnails tfiru butt; 7 of1.shingle rests'-Upon top *. ' : edge .'of shingle belqw; giving . ` proper alignmeritofcpursesT " * No. 700 USG Thatch Butt'Siding--Idealized wood grain texture, uniform thickness, deep wavy lines. Bright gray, white. Size 12 x 27 x fz in. Approximate weight per square: 183 lbs. .^^Special-iallog-jnaiisy Vv Sfireak'*joints by using. '. Cut shingles ;a ends; USG.'ASBESfdS.SiblN 3 SHINGLES;, .Punch nail.holes as;; .' '.Wavy- Butt br.:Tha tch -.butt;-:' -required.V:V:.v';;: T *11 ^'**T JL a 11 i APPLICATION OF SUCCEEDING COURSES Old wood siding USG Cushion Felt JAMB Flashing- $^0. New Wood Mould No. 900 USG Clapboard--Idealized wood grain texture, uniform thickness. White. Size 9x27xsb in. Approximate weight per square: 187 lbs. `Asbestos Wood Siding Moulding HEAD FINISHING AROUND WINDOWS INSO-BAK Inso-Bak is a % in. thick asphalt coated insulation board for use under asbestos cement siding and shingles. Partic ularly use!til for remodeling work; takes the place of buihling paper, adds insulation; an idea] backing for asbestos cement siding. Large units--2 ft. x 5 ft. (long edges shiplapped). Inexpensive. C3 t3 O 49 UaS EXPANDED METALS MACHINE GUARDS-WINDOW GUARDS-LOCKERS PARTITIONS--FURNITURE . . . ORNAMENT 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 sharp angle. This gives the product hulk in addition to the thickness of the steel from which it was cut. The expanding process is a type of cold drawing. Econo Mesh has the properties of cold-drawn steel. Advantages Workability--USG Expanded Metals can be cut readily into desired shapes without danger of raveled strands. Thc3' may be welded, bent and formed, drawn and flared. When cut in any direction USG Expanded Metals still retain their original strength. Variety of Finishes--These metals will take any type of coating: nickel, chrome, copper, good grades of paint, and rub ber, cither by dipping or anodic process. Strength--Econo Mesh and Shelf-X are made of cold-drawn steel strands. Light in Weight--These materials are both far lighter than an equal area of sheet steel in the same gauge. Appearance--USG Expanded Metals present a neat clean appearance. Uses Accepted as ideal for window guards, open mesh partitions, railings and similar applications, these light, sturdy sheets arc adaptable to many other purposes. USG Expanded Metals are attracting the attention and use of architects and designers for non-slip, self-cleaning catwalks; substantial grilles; metallic furniture; special containers and "retainers," where ventilation, strength and light weight must be combined--to suggest but a few current applications. Various Metals Used USG Expanded Metals of open hearth and stainless steels are carried in stock. They can also be produced in aluminum, cop per and other metals. Shelf-X, Flattened Expanded Metal Shelf-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 and Development Service We maintain a design and development service which we invite architects to use. Problems submitted, of course, remain confidential. 3 0 ODOlQ Guide to the Selection of USG Expanded Metals Style No. \Yt. per S<|. ft. (lbs.) ECONO MESH > in. lift % in. 116 ;o 54 H in. #13 .80 VA in. #10 M in. # 9 1 \<i in. #10 1 19 1 80 .79 1 in. # 9 1 5in. #6X 1 19 68 SHELF-X ){ in. #18 1 14 1 -j in. #18 .70 }'i in. #10 .87 $4 in. #16 . 54 Vt in. #13 .80 1 in. #16 1 1 > in. 1 6 .31 I 19 Sq. in. sec. area of width .20 16 .24 .35 .53 .23 .35 .20 mond (in.) Wide I.one .50 .87 .87 .87 .87 1.37 1.37 1 37 1.20 2.00 2.00 2.00 2.00 3.12 3.12 3.12 Sheet size Approx. Width Length open (short way (long way of diamond) of diamond) Made from U. S. Standard Ga. No. 4 & 6 ft. 4 & 61 2 ft. 4 & 6 ft. 4 it 6 ft. 4 it 6 ft. 4 & 6 ft. 4 & 6 ft. 4 it 6 ft. ft ft. 8 ft. 8. 10. 12 ft. 8 ft. 8. 10. 12 ft. 8 ft. 8. 10. 12ft. ft ft. 65% 76% 76% 69% 68% 81% 80 84%_ 18 16 13 13 10 13 10 12 Recommended uses Machine Window Guards Guards Lockers Parti tions Furni Trays & ture Racks i i .34 .28 .20 .50 .25 ,50 . 16 .89 .24 .89 91 1 40 . 35 | 1 40 1.06 1.26 1.26 2. 12 2. 12 3 25 3 25 4 It. 3 & 4 ft. 3 & 4 ft. 3 & 4 ft. 3 & 4 ft. 3 & 4 ft. 3 ft 4 ft. 8 ft. 8 ft. 8 ft. 8 ft. 8 ft. ft ft. 8 ft. 35% 60% 60% 73% 73% 81% 78'*% 1ft IS 16 16 13 16 10 1 i 1 i ; 1 cn N/ PARTITIONS L'Sfi Expanded Metals are used to build I both portable and permanent partitions. They have ample rigidity and make a good appearance. When made up into panels according to our recommendations they may be reclaimed 100fr for future use. These metals provide barriers against thievery since to break through it is necessary to cut a large opening. Expanded Metal cannot readily be bent away from a small cut. * Econo Mesh is most frequently used for partitions. 1 fowever. where appearance is of primary importance. Shelf-X Flattened Expanded Metal is suggested. i GUARDS CSG Expanded Metals, having the prop erties of cold-drawn steel, present etiicient obstruction to entry, while permitting ven tilation and entrance of daylight. They, I therefore, are recommended for guards for windows, doors, skylights, etc. Since CSG Expanded Metals are readily workable, they can be shaped to tit windows which open in various ways. .\s in the case of partitions, complete accessories are available to aid in prefabri cation. EQUIPMENT The appearance, strength and workability of Shelf-X adapts it for use in the fabrica tion of grilles, tables, chairs, display pieces and other special items. 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. The Exm-'.i) Stait.s Gypsim Company is prepared to assist in the development of new uses for Expanded Metals. ( >ur con fidential I lesigtt and I development Service is maintained for this purpo-c. (Jt CO 't WATER THINNED PAINTS INTERIOR-EXTERIOR FLAT-TEXTURE . . . PRIMERS-SPACKLING COMPOUNDS PAINTERS PLASTERS < TEXOLITE WATER-THINNED PAINTS Tcxolitc Water-Thinned Taint employs the newly developed protein-base vehicles. It combines all the color values of tempera and fresco, yet may be ap plied with ease and freedom. Furnished in paste form, water only is added to make it ready for application. Advantages Texolite dries in about one hour. It does not crack, peel, yellow or fade when applied as directed. One coal covers most surfaces. There is no objectionable paint odor or lire hazard. Texolite is easy to mix and apply. It dries to a hard dry film which repels dust. Texolite is low in cost and provides other econ omics. For example, one gallon covers walls and ceilings of an average room : since it is water-thinned, there is no thinner cost; it applies quickly, saving labor. Where Used Texolite can be used for almost every type of interior. It is not recommended for kitchens, bathrooms or rooms which are subject to excessive humidities and condensation on wall surfaces. Practically any other interior surface, however, can be painted with Texolite: gypsum wallboards, fibre and insulating wallboards, new and old plaster, concrete, etc. Properties Purity of Colors--Since the paint vehicles used in Texolite have a crvstal-like transparency and do not acquire color or darken with age, they reveal the pure color of the pigments which they bind permancntlv to the surface. High Light Reflection--Tests made by the scien tific section of the National l'aint, Varnish ami Lac quer Association, Inc., have established that Texolitc colors have high reflectance percentages. Quick Drying--Two coats can be applied, one over the other, with practically no interruption to the painter's work. When the first coat is finished the second can be started. No Paint Odor--.Since water is the thinner, vola tile solvents which give unpleasant odor to oil-base paints are eliminated. Fire Safe--The use of water as a thinner removes any possibility of fire hazard. Durability--The film produced by Texolite has several times the adhesive power of oil film. It hardens with age without cracking or peeling. It is, however, desirable to use oil-base paints for such surfaces as baseboards and doors which are subject to abrasion. Washability--Texolite painted walls and ceilings are washable after the film has matured for several months. They can be washed clean gently, but should not be subjected to the abrasive action of vigorous scrubbing. New, Yet Time Tested Made for interior use, Texolite was nevertheless the choice for the exteriors of most of the buildings at the Chicago, Dallas and Cleveland Fairs. It com plies with specifications of all Federal Departments and construction agencies. Colors Texolite is furnished in white and ten colors which produce a soft, glareless sheen. i TEXOLITE DEEP COLORS Texolite Deep Colors bring new possibilities to home and commercial decorating. They have all the advantages of Texolite. Used to provide bril liant color effects in homes, apartments, hotels, schools, shops, restaurants, show windows, etc. Mixed with white Texolite they provide practically any color or shade. Because Texolite Deep Colors are made in a bal anced formula, they can be mixed with regular Texo lite or inter-mixed with themselves without danger of streaking or color flotation. Twelve colors are available. DURACAL. POWDER CASEIN PAINT Duracal is prepared for application to -walls and ceilings by mixing with water. It is designed for use on plaster, concrete, brick, stone, wallboard or primed wood surfaces. It is especially adapted for use over new plaster as it is not affected by lime. Furnished in eight colors and while. An unlim ited variety of blends may be obtained by intermix ing the standard colors in any proportion. Duracal colors are high in reflection value and have such excellent hiding power that seldom is a second coat needed. Dry quickly and form a smooth coat that will not chip, flake or rub off when applied as directed. 52 CEMENTICO HYDRAULIC CEMENT PAINT A porous masonry paint with unusual capacity for bringing life and color to stucco, brick, pouredconcretc and similar porous surfaces. It mav also be used over interior porous masonrv such as base ment walls. or over wood or painted surfaces. Ccmentico comes in dry powdered form, and is mixed with water. The color pigments are limeproof, assuring bril liance and long life. Available in ten colors and It is not intended for use over non-porous surfaces, white. over lime or gvpsum plaster, over sidewalks or floors, i0 0 W 1 vJ U i, 7 STANDARD COLORS TEXOLITE AVAILABLE IN USG DURACAL WATER-THINNED PAINTS CEMENTICO I TEXOLITE DEEP COLORS LIGHT REFLECTED BY VARIOUS COLORS USED IN DECORATION Figures Indicate Percentage of Light Reflected While................................................................... *1-- VERY PALE TINTS OF: c, r;iv............................................................................. 75--SO Till!..................................... .......................70 --77 (Jreen.......................... ........... frfi--7 2 Mine......................... .................. ^7--fifi Yellow to ivmy .. ............7^ -- SI MEDIUM TINTS OF: < Ir.iv ....................................................................... I'--5o r.m.......................................... . .'.'--oh IlflMMl...............................................................'H -- >> Blue............................................................................... < I -- 4*1 \ellov.................................................................. o'--711 STRONG TINTS OF: (7r;iv........................................ 10--40 Tan............................................................................... <u--41 *re*n............................... .................. --44 Blue ......................................................................... 21--27 Yclunv ................................................................. 54--5S SOLID COLORS: !<>!............................................................................... 1 1--20 Yellow......................... .................. W - 4H Itlne ................... ............................ 7 M i Ireeu. .... ..........................................' lo Brown . > - ii COMMON WOOD FINISHES: Dark malmuaay...................................................... 7 --12 Walnut......................................................................... 14--lx Knylii|i oak................ .............................. |5--20 l.icht oak..................... .................................... 10--.{> Natural pine ami maple ................ 45--5j Values based on "illumination Design Data" General Electric Company and other sources. rji 'U o B io a a > GUIDE TO THE SELECTION OF USG PAINT PRODUCTS INTERIOR FLAT FINISHES FOR WALLS AND CEILINGS USES vcr old ami now interior wall.- ami ceilings m homes, hotels, apart ments. offices, stores, simps, schools, hospitals, factories ami warehouses. Not recommended for use over \vt>od trim subject to wear, or under permanently damp conditions, or where it will be subjected to exces sive abrasion. l*scd as deep brilliant pamt. or for tinting regular Texolite, casein paints, washable calcimine, and or dinary calcimine. The deep colors can be intermixed in any promotion m ithoul danger of color streaking or flotation. Ideal for display back grounds. Quickly recoatable anti non-bleeding. For decorating interior partitions, walls and ceilings, for more per manent decoration than ordi nary water thinned paints will pro duce. Used over Sheet rock and other gypsum wallboards. and over W'eatherwixid and other insulation wallboards, in addition to painted or unpainted interior plaster sur faces. PRODUCT TEXOLITE*--WHITE AND TINTS--mod ern water thinned paint for interior wall and ceiling decoration. Provides brighter, more col orful interior decoration that is permanent and inexpensive. TEXOLITE* DEEP COLORS--paint in true brilliant colors bringing new. pleasing color pos sibilities to the decorating and display field. Simple and economical to apply. DURACAL* (A PREMIUM CASEIN POW DER PAINT)--in powder form prepared for application to walls and ceilings by mixing with water. Packaged in standard colors and white. Colors may be intermixed. CHARACTERISTICS Dries in one hour. Covers more area. Does not yellow. High light reflection and excellent hiding power due to high quality pigment. Easy to apply. No objectionable paint odor. No fire hazard. No thinner cost. Recoatable. Cuts maintenance costs. Offer unlimited color possibilities because of the wide reduction range of true brilliant colors and their in termixes to produce blends. Clarity of vehicle allows color pigments their full brilliance, permanently. Smooth working. Casein bound. Recoatable. May be applied over surfaces previously painted with oil paints. Can be applied over un treated plaster surfaces without pre liminary sizing. Superior to ordinary water thinned paints but not a substitute for Texolite. Used wherever a hot water calci mine of good quality is desired. Home, office, store, shop. etc., in teriors. Suitable for use where ea-v removal is desired. KAL* (HOT WATER, MICROFINE CAL CIMINE)--provides one of the most econom ical ways to bring color into interior decora tion. Packaged in standard colors and white. Ground exceptionally fine by a special process. Balanced formula provides easy intermixing of color. Durable. Does not rub off. Easy to mix and apply. Good coverage. i m 54 Wherever a high qunliiv cold water calcimine will meet the require ments of the decorative job. For use in interiors of factories, warehouses, garages, other indus trial structures, also farm buildings. Excellent for coating pipe coverings. More economical than calcimine. As an interior decorative texturing material over any dry, solid, clean surface, such as new plaster. Sheetrock*, other gypsum wallboards, Weatherwood* and other insulating wallboards. Esj*ecially adapted to refinishing old cracked plaster sur faces. Used to produce stone effects, antique effects and in stencil work. Same as Textone when highest quality is not demanded. 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. USG* INTERIOR COLD WATER PAINT-- an economical utility paint for renewing and brightening interior surfaces. Furnished in white only. INTERIOR TEXTURE FINISHES TEXTONE*--a plastic paint meeting the de mand for a dependable, economical, easily ap plied texture medium capable of satisfying every requirement of modern decoration. USG TEXTURE PAINT*--a lower priced plastic paint than Textone, used in the same manner, but in applications where the utmost in quality of finish is not a primary essential. Smooth finish. Easily applied. Good coverage. Boiling water not needed. May be mixed with tap water if not too cold. Does not rub off. Balanced formula. Colors may be intermixed to provide pleasing blends. / C .arc h bound cold water paint, belou USG Calcimine in quality. Easily^qpplied and readily washed off when^ repainting is necessary. Best results when surfaces are pre pared according to good painting practice. First grade plastic paint. Textone properly applied forms the most permanent texture body material available. Furnished in white only. Can be integrally tinted with Tex olite Deep Colors or USG Limeproof Colors or applied white and color supplied by further treatment. For same purposes as Textone, but provides less coverage and generally not quite so high in quality. Can provide excellent textures in both period and modern styles. Reg. Trade Marks a a c i-- CD i-. U! PJ H-* GUIDE TO THE SELECTION OF USG PAINT PRODUCTS USES EXTERIOR PAINTS PRODUCT CHARACTERISTICS Use only over porous masonry surfaces such as cement stucco, cement, cinder block, unglazed clay tile, concrete, and similar areas. Not recommended on magnesite stucco surfaces. CEMENTICO* -- hydraulic cement base Made of white Portland Cement and other special ingredients to paint for bringing new beauty, life and color produce hardness, binding quali ties and workability. Only to porous masonry surfaces. moved limeproof colors are used. Weatherproof. Water resistant. 1 Bonds to porous masonry sur- ! faces. 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. Not a whitewash. Casein bound paint furnished in white only. Easy working. Quick drying. Does not rub oft, Recoatable. 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 and strong. Tinted mate rials will be several shades lighter when dry than when in the wet mix. SURFACE PREPARATION PRODUCTS Filling small cracks, scars, slight imperfections in plaster. Making Swedish putty. Spotting nail heads. Filling holes, ridges, im perfections in concrete. Filling nail holes, knot holes, cracks, etc., in wood trim. For interior use only. 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. For patching cracks and larger breaks in unpainted plaster wails and interior concrete surfaces. For application by broad knife or trowel. Can be decorated with any decorating material. i i RED TOP* PATCHING PLASTER -- a plaster 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. Dries to extreme hard ness. Very white. Non-shrinking. Con tains no lime. Sets in 1 to lUj hours. Uniform set and quality. Smooth and plastic because of .'Pccial ingredients. For patching cracks and breaks in plaster and wherever a Painters plaster of Paris is used with either trowel or broad knife. i 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 500 pound barrels. For preparing these surfaces for painting: painted ami patched walls ami ceilings, plastered surfaces, interior concrete surfaces. New or old unpainted concrete floors. Fiber, gypsum anil insu- biting wallbonrds. Not recom mended for old painted concrete lloors or surfaces which are per manently or periodically damp. < 1 ! ! K-CEMO PRIMER* -- the answer to the alkali problem in painting. A printing material which "locks in" lime or alkali and makes possible more durable paint jobs. Useful for correction of unequal suction. Mixes readily, works easily, but requires more careful manipula tion than Red Top Batching Blaster. Provides hard, dense and >trong finish surfaces. Setting time approximately 30 minutes. A casein and Portland ceimnt formulated primer which as-ures longer life for decorative mate rial-. Produces a hard, lime locking prime coat over which may be applied oil paints, wash able calcimine, enamels, casein <oid water thinned paints. Reg. Trade Marks. I BDO10 15 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 proofed 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 Econo-Brite*. 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 page 57 the constructions are tabulated and compared for quick selec tion. On later pages, each type is described, detailed and fully illustrated. LIGHT WEIGHT HEAT INSULATING Through the utilization of hollow constructions, or light weight aggregates the well known inherent lightness of all gypsum decks is enhanced -- usefully reducing the loads to be carried by the supporting framework. Gypsum, unlike most fireproofing materials, is an excellent heat insulator. Gypsum roofs are generally amply heat insulative to prevent condensation under any normal building exposure, ADAPTABLE Readily cast in place or cut to fit (when precast); practically any structural requirements may be met. LIGHT REFLECTIVE The smooth, white, closely knit gypsum surfaces are well known as efficient reflectors of light; when soiled by time, both color and reflective ability are easily restored with USG Econo-Brite*. NAILING BASE Gypsum holds nails well. A standard 2-in. galvanized roofing nail driven to 1 Vi-in. penetration resisted removal until a 180 lb. test load was applied. 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 Pyrobar* Short Span Tile (3 in. hollow)..................................39 Pyrobar* Short Span Tile (4 in. hollow)..................................35 2Vi in. Sheetrock-Pyrofill*...................................................... 38 2 Vi in. Sheetrock-Pyrofill plus Vi in. Weatherwood............. 24 3 in. Sheetrock-Pyrofill*.......................................................... 35 2Vi in. Weatherwood-Pyrofill* C/2 in.board)..........................26 3 in. Weatherwood-Pyrofill * (1in. board).............................. 19 Corrugated Sheet Iron........................................................ 1.50 Note: 5-ply roof covering included except on corrugated sheet iron. 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 loads at that time. ENGINEERING SERVICE Trained engineers, experienced in all aspects of roof and floor work are available 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. n I f wtnras arevfPisajsM The skilled erection services of USG approved fireproofing contractors are available throughout the country. 'Reg. Trade Mark 9 TOfTfl GUIDE TO THE SELECTION OF ROOF AND FLOOR DECK CONSTRUCTIONS Size 2 in. x 15 in. x 10 ft. 2 in. x 15 in. x 8 ft. 2 Vi in. x 10 in. x 6 ft. Average B.T.U. Relative Recommended Wt., Lbs. Value Cost* Uses /Sq. Ft. Pages !i 12 .58 For floor ond roof slabs of light weight, speedy 58 end 59 12 .58 i erection i i i i For floor and roof 15 .53 slabswith close 58 end 59 beam spocing Solid: 3 in. x 12 in. x 30 in. Hollow: 4 in. x 12 in. x 30 in. 17 15 3 in. x 18 in. x up to 5 ft. 6 in. 3 Vi in. x 18 in. x up to 6 ft. 9 in. 4 in. x 18 in. x up to 7 ft. 9 in. 17 20 23 i i .49 ! ii i .35 i111 For light weight, flexible roof decks. Solid tile has great nail holding power for attaching ornamental roof coverings 60 end 61 .49 n .45 in .42 IV For light weight roof decks where subpurlins are not feasible 60 end 61 2 Vi in. Standard plus Vi in. insulation 11.5 12 .38 1 .24 II For light weight, low cost, speedily 62 end 63 erected roof slabs 3 in. Standard 3 in. Thick 3 Vi in. Thick 4 in. Thick 3 in. Thick 3 Vi in. Thick 4 in. Thick 10.5 .19 II i 13 .35 1 15 .32 II 17 .29 III 14 .35 ! 1 II 16 .32 1 III i 18 .29 ' IV For light weight. low cost roof slabs with additional in sulation value 62 end 63 For light weight, full fireproof floor and roof slabs. Speedily erected. Not adapted to smol! areas 62 end 63 For light weight. full fireproof floor and roof slabs. Speedily erected 62 end 63 B B oig 20 Gauge For light weight, (Also 22 and 18 Gauge) quickly erected, Vi in. Insulation 1 in. Insulation 1 Vi in. Insulation 3 .39 1 3.5 .25 i II 4 .18 ! III low cost roof decks, insulation should always be added. Add insulo- 64 end 65 UI 1 tion to suit h indicates more expensive than "I," etc. :;:Furnished with special section steel subpurlins. 57 Light weight, fireproof, insulating gypsum plank, steel bound for added strength and tongued and grooved on tour edges to form a continuous roof deck tor average floor loads such as those required tor apartments, hotels and schools, ADVANTAGES Light Weight -- USG Gypsum Plank weigh but 12 lbs. per square foot -- half the weight of 2-in. stone concrete. The safe super imposed loads given in the table (right) were established by test at 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 sung and tight as each unit slips into place without ramming. The deck literally "flows" out over the steel in an uninterrupted movement. Beam and Purlin Spacing May Vary--The long "planks" cantilever over the supports. Since joints are broken between courses, each 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 ore within the moximum 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 56. USG LONG SPAN GYPSUM PLANK 2 in. x 1S in. x 10 ft. Construction Roofs ......................... Spacing of Steel Supports Up to 5 ft. Up to 7 ft. USG MEDIUM SPAN GYPSUM PLANK 2 in. x 15 in. x 8 ft. Floors......................... Up to 3 ft. Roofs ......................... Up to 4 ft. Safe Superimposed Load 150 lbs. Sq. Ft. 75 lbs. Sq. Ft. 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 2 Vi 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 150 lbs. per square foot, such as apartment houses, hotels, office buildings. Floor joist spacing should not exceed 30 inches. For roof construction joist spacing may be increased to 48-in. centers." Provide on 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 not 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. ILLUSTRATIONS PAGES 58 AND 59 (Page 58 Left) Tongue and groove edges permit USG Gypsum Plank to cantilever. Therefore, ends do not have to meet over supports. (Page 58 Right) USG Gypsum Plank are anchored to steel supports by galvanized steel clips secured to lower flange of advancing groove. (Page 59 Left) USG Gypsum Plank are economical and easy to erect since they are installed much like wood. (Page 59 Right) Underside of USG Gypsum Plank roofs present a neat, trim appearance and are highly light reflective. > BB018 1525 :o 11 L iU N ITID tSX(AT;E5 SGTRSUM XCOM P^N Y , TYPICAL USG GYPSUM PLANK CONSTRUCTIONS U.S.G. STEEL BOUND GYPSUM PLANK BOTTOM CHORD OF TRUSS- SKYLIGHT CURB DETAIL column- These precast tile units are manufactured in two types to form light weight heat insulatire, fireproof roof decks which will tit any type of roof fram ing. They may be erected in any weather, winter or summer. PYROBAR SHORT SPAN ROOF TILE Embodying all of the basic features of gypsum os detailed on page 56, Pyrobar Short Span Roof Tile are laid directly on a system of sub purlins which, in turn, ore loid across the main roof purlins. Economical for plain flat roofs when the areas involved are insufficiently large to utilize the economies of the poured in place Pyrofill constructions (page 62). Likewise they make excellent replacements for the combustible or corrugated iron decks of existing buildings since the new deck may be laid day by day as the old one is removed. The easily cut tile will fit difficult roof framing; cut up by hips, valleys, and dormers; of any pitch. Their noteworthy nailing qual ities make them the ideal deck construction for ornamental roofs as any type of ornamental roof covering may be nailed directly to them. DESIGN Tile ore made in 3-in. thick solid units and 3-in. and 4-in. thick hollow units. The solid and 4-in. hollow units are reinforced with electrically welded, galvanized steel mats designed to afford top and bottom reinforcing. 3-In. hollow tile are reinforced with two %-in. cold rolled channels at each end of which two wires are secured to serve as lateral-tie reinforcement and to provide end anchorage. SUB.PURLINS The need for more efficient and economical sub-purlins than the standard has been met by USG engineers who have developed the USG Bulb Tee Section, with greater strength and bearing surface for the tile than standard tees of equal section area and weight. PYROBAR LONG SPAN ROOF TILE Pyrobar Long Span Roof Tile may be used without sub-purlins where the purlin spacing does not exceed 7 ft. 9 in. The tile may be purchased "pre-notched" to fit over purlin flanges. Lap joints are provided where purlin flanges are too narrow to supply bear ing for the ends of two tile. Pyrobar Long Span Roof Tile will not prove as economical as the short span tile when much cutting and fitting is required. PYROBAR SHORT SPAN. ROOF TILE TEE SIZES AND ALLOWABLE SPANS Sire (In.) | Weight per | Sq. Ft.** Specific Advantages and Uses Based on 50 lbs. per Sq. Ft. Total Roof Load Tees Spaced 2 ft. 6in. C. to C. M = 1/1 OWL Solid: 3x12x30 1 7 lbs. . Solid Tile: For ornamental type roofs i where fireproof units of flexibility and : good nail holding power are required. | Also adapted to industrial buildings, flat i or pitched roofs. Hollow 3x12x30 4x12x30 12*.2 lbs. 15 lbs. Hollow Tile: For roofs where built-up roof covering is to be used, for which their nail holding power is ample. Lighter in weight than solid tile with added thermal insulation value. tf^Add weight of tees to weight of tile to obtain weight of roof deck. Size of Tee Weight per Foot Allowable Span ,------------------------------1 18,000 lbs. 1 per Sq. In. Stress 20,000 lbs. Wt. of Tees 1 Slbps..FPDte.rofRoof per Sq. In. Stress No. 218 USG 2.77 lb. Bulb Tee 21/2 |n. x 2Vz in. 5.5 lbs. 21/2 in. x 3 in. 6.1 lbs. 3 in. x 3 in. 6.7 lbs. 7 ft. 8 in. 9 ft. 2 in. 9 ft. 4 in. 1 8 ft. 1 in. 9 ft. 8 in. 9 ft. 10 in. 1 2.15 i 2A ! 2.61 1 ILLUSTRATIONS PAGES 60 AND 61 (Page 60 Left! Quick, easy erection results from ease of handling small, light Pyrobar Roof Tile. (Page 60 Right) Pyrobar Roof Tile arc adapted to construction involving steep slopes. (Page 61 Left) Equally adapted to flat as sloping roofs, Pyrobar Roof Tile are being installed here on a long, wide surface. (Page 61 Right) Underside of roof showing light reflecting quality of Pyro. bar Roof Tile. aroaa TYPICAL PYROBAR ROOF TILE CONSTRUCTIONS D * i t BB018 1538 61 Pyrofill.* a quick setting, light weight concrete, made at gypsum stucco, wood fibre and water, is poured over a continuous, electrically welded, galvanized steel fabric onto either a fireproof Sheefrock form or, when additional insulation is required, onto forms made of sound absorbent, insulating Weatherwood. Either form becomes a permanent part of the deck. ADVANTAGES The resulting constructions ore light weight (see toble below), heat insulating -- reducing condensation difficulties; exceptionally strong and duroble. The upper surfaces are without joints. The sub-purlins are insulated with Pyrofill. 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 moy be nec essary. Sheetrock and Weatherwood are described on pages 30-37, 42 and 43. V CURBS. WALLS. ETC. Usually constructed of pre-cast gypsum tile. They may be also poured in place using the Sheetrock-Pyrofill or WeatherwoodPyrofill construction, if desired. TYPES OF PYROFILL CONSTRUCTION Sheetrock-Pyrofill--Undersurface is Sheetrock, fireproof gypsurr board, 32 in. wide, in lengths equal to purlin spacing, so that end joints occur over main purlins. Steel sub-purfins of light rails or tee sections are laid at right angles and clipped or welded to main purlins and spaced approximately 32Vi in. on centers. Pyrofill construction may be used over light steel beams or bar joists without sub-purlins if steel spacing does not exceed 36 in. Weatherwood-Pyrofill--Here, Weatherwood, a light weight insulat ing fibre board, is used tor the permanent form. Not as light re flective as Sheetrock, it provides additional insulation (see table page 56) and sound absorptions of approximately .30 I for the Vi-in. thickness) and .45 (for the 1-in. thickness) sound absorption units per square foot of surface. Other Types--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 are used. Forms may also be built around beams and girders to provide monolithic fireproofing for these members at the same time. PYROFILL EMBEDDED RAIL CONSTRUCTION is similar to Sheetrock-Pyrofill in that stondard roil sub-purlins span the pur lins, over which fabric is laid. Removable wooden forms are hung not less than 3A in. below top of purlins. Thus rails are embedded in the Pyrofill and there is an all gypsum under-surface. f SUB-PURLIN SIZES AND WEIGHTS OF SLABS Sub-Purlins Spaced 32Vi" Total Load -- 45 Lbs. per Sq. Ft. M = 1/10 WL Size of Sub-Purlin (Weight per Yard) | Allowable Span 1 18,000 lbs. per sq. in. ] Sub-Purlin | Stress 20,000 lbs. per sq. in. i Sub-Purlin Stress No. 17S USG S-lb. Bulb Tee : 6'-6" 6'-10" ' Sub-Purlins in lbs. per sq. ft. 1 of Roof 1 Weight of Slab including Sub-Purlins Sheetrock Pyrofill 1 Weatherwood Pyrofill Minimum Slab Weinht in Ihs 1 Min. Slab Thickness*- Wt. per sq. ft. in. lbs. Thickness* per sq.ft. Vi" Bd. 1" Bd. i/2" Bd. 1" Bd. 2 Vi" ! 11.5 ! 2 Vi" 3" 110.0 10.5 No. 218 USG 8.3-lb. Bulb Tee 7'-7" 12-lb. Rail 1 8'-11" 16-lb. Rail i r-2" 20-lb. Rail 13'-3" 8'-0" 9'-3" ir-6" ) 3'-8" 1.02 ! 1.5 12 ; 2.5 2Vi" 2 Vi" 2 vi" 3" i 11.5 12.0 ; 12.5 | 15.0 2'//' 2 Vi" 2 Vi" 3" 3" 1 3" : 3" |3" 110.0 ; 10.5 11.0 13.5 10.5 11.0 11.5 12.0 --Total slab thickness including Sheetrock or Weatherwood; minimum thickness of Pyrofill 2 in. ILLUSTRATIONS PAGES 62 AND 63 (Page 62 Left) Galvanized steel fabric is laid over permanent Sheetrock or Weatherwood form. (Page 62 Right) Pyrofill, plastic gypsum material, is poured over fabric and permanent form. (Page 63 Left) Pyrofill construction is adaptable to any type of steel framing or truss construction. (Page 63 Right) Underside of Pyrofill roof, illustrating the high light reflection quality of this construction. BB018 1529 Reg. Trade Mark TYPICAL PYROFILL CONSTRUCTIONS CURB AND EAVE CONSTRUCTION FOR MONITOR SAWTOOTH GUTTER CONSTRUCTION \ n t'j BB018 1530 Light weight, preformed, interlocking, copper hearing steel units--6 in., \2 in., 18 in. (standard) wide, are clipped directly to the steel homing and covered with Weatherwood Roof Insulation. For clear spans from 4 ft. 0 in. to 8 ft. 0 in. ADVANTAGES High Load Carrying Capacity--Permits wide spocing of purlins re ducing the amount of structural steel needed. Strength and rigidity in the deck plates are provided by stiffening beads between the reinforcing ribs. Rapid-drection--Deck plates, 18 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. DESIGN Deck plates (standard width 18 in.) in lengths from 4 ft. 0 in. to 8 ft. 0 in. (see table this page) are rolled from 22 ga., 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 combination of great strength and extreme lightness is se cured through the use of deep (lVi-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. 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 materials, machinery and the deck itself. 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 Conductivity ol Steel Deck--In B.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. Detailed information on Weatherwood is provided on pages 32 and 42. 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. . .0.18 ALLOWABLE LIVE LOADS IN LBS. PER SQ. FT. Foctor of Safety -- Four Gouge Purling Spocing 4'0" 4'6" j 5'0" i 5'6" 22 83 i 66 i 53 20 : 81 18* i ; -'Factor of safety--3.5 44 67 6'0" 56 71 6*6" 1 7'0" 48 41 60 52 7'6" | 8'0" 45 i 39 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. Flanges are locked together with clips. Except when mode of galvanized steel, all plates are painted a semi-gloss light gray to provide glareless light reflection and fur ther protect the steel against corrosion. ILLUSTRATIONS PAGES 64 AND 65 (Page 64 Left) Small size, light weight allows speedy erection. (Page 64 Right) Illustrates adaptability of USG Steel Deck Plates to slop ing roof surfaces. (Page 65 Left) USG Steel Deck Plates make neat appearance. (Page 65 Right) Illustrates high light reflection quality of USG Steel Deck Plates. BB018 1531 TYPICAL STEEL DECK CONSTRUCTIONS SCOPE OF THE SERVICE The United Stotes Gypsum Company maintains a complete service for architects covering all phases of the control of sound in buildings. This service includes engineering assistance of a high order; a variety of sound absorbent mate rials meeting a wide range of acoustical and economic requirements, supported by thorough laboratory research and development. All materials except Sabinite are applied by USG district sound control contractors. ENGINEERING ASSISTANCE Our corps of experienced acoustical engineers is completely equipped to assist architects on any prob lems involving acoustical correction. This service is rendered without obligation. for new construction it is advisable to call in our engineers before plans are drawn. Their advice at that time usually effects more efficient acoustics and greater economy. They are prepared to advise corrective methods when acoustical difficulties are experienced in existing buildings. RESEARCH AND DEVELOPMENT i All USG sound control materials are the result of directed research at the Building Materials Research Laboratories of the United States Gypsum Company. This laboratory occupies an entire building in Chicago, with 20,000 square feet of floor space especially equipped for research and testing. The work is carried out under the direction of trained physicists, chemists and architectural engi neers. The personnel includes some fifty individuals. This laboratory is one of the few owned and maintained by a manufacturer of acoustical products. Its purpose is two-fold--to serve in the development of new acoustical products, and to supervise the maintenance of the excellence physically and acoustically of the production of our plants. BB018 1533 MEMBER OF INSTALLATION USG district sound control contractors have been trained to conform to manufacturers' standards in the installation of all acoustical materials. They receive the full benefit of our engineering and labora tory facilities in the production of both a correct acoustical and material result for purchasers. ACOUSTICAL MATERIALS ASSOCIATION Absorption figures used in this catalog are quoted from the Official Builetin of the Acoustical Mate rials Association, of which the United States Gypsum Company is a member. Copies of the bulletin may be obtained from any representative of the USG Enginering Sales Division. sfifr ; II! HV r< 1 >1 -ri'iVr!**.. SF GUIDE TO THE SELECTION OF USG SOUND CONTROL MATERIALS Type Thickness '/i6 in. Mineral Wool Fibre Tile 1 '/14 in. 1 Vib in. 1 Vi 4 in. Metal " Facing; Absorbent Wool Pad 2'h in. Wood Fibre Tile !6 in. 1 in. Noise Reduction Coefficient .60 Fireproof Rating Incom bustible Paintability 1! Good Clean- i ability 1 Good 1 .65 Incom Good Good bustible .70 Incom ; Good Good bustible j.75 Incom Good Good bustible 1 1^ Good .85 Incom bustible Good Relative Cost* Pages 1V 68 and 69 i VI 68 and 69 ! i 1VII 68 and 69 VIII 168 and 69 IX ^ 68 and 69 1 .60 Combus tible Fair Fair 111 70 and 71 1 1 .70 Combus tible Fair Fair IV 70 and 71 'h in. Acoustical Plaster % in. .50 i .55 Incom Fair bustible ' Incom bustible Fair Fair 1 1 Fair II SabaniteM Z2 in. .55 Incom Fair bustible Fair *"l" indicates least expensive; "II" indicates more expensive than "I", etc. 1 70 and 71 70 and 71 i 70 and 71 Q oa CD <JI J -ft f- - ;fep'' " ft Cemented to surface or suspended by grillage.-Metal splines assure surface alignment-when tile are cemented. Unpatnted :.;CoeHieicSits)| J Thickness 1281256 512 1024l2048j4000 '/liin. ' 0% "/liW'', .08; K.. n4 m si<90^',82Me2| $73 -9.1^8^85: ,6/uin.\ il5 .20* .26 *o: $Z, s9* .84 ' |88^B5^88; ' -. '-'' '-. - -*>' , ;, .~*"!'^SBSLiiSnr^Vi^fVrSi^; Y,KfS5W,pv*-wv -. ^Average of coefficients 25$ fo;.2<H|j^ Noise Reduction.Coefficients *&* *' i ' ..; s i -' . *-- ; Metal pans are snapped into position and held firmly be tween special tee runners. Type Pad ,V-'fv ;>' 128 256 512 i.: 5. *.- . .- s.. 'C-Vv 1024 1 2048 :*N*rit\ Reduction 4000 Coefficient .8 * ,19 ^ *N s- .98 |gg|| 168 c' -s.65 .93; ^Average of coefficients 25$ to 204B(^lndwW#f ^toneofeit*5% Mounting; MmA **1 w '*u w<u^ **!* on | [ | {SUfil'nEI) JJSTA*T^5 iGYP^JJJrf J&OMVJWfY a ao i--* CD Ui u UI Made of processed mineral filaments, Acoustone is a sound ab sorbent tile, with either a Va-in. bevel or with plain edges so accurately formed that joints between tiles are scarcely discernible. Acoustone, 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 Acoustone reflects 70% of light striking it--mill-painted, 83%. Repeated painting does not lessen its sound absorption. Unpainted tile are easily cleaned with a vacuum cleaner. Acoustone installa tions are as permanent as the building. TEXTURE Resembles Travertine marble. No two tile are exactly alike in tex ture, since the texture is a concomitant of the manufacturing process and is not secured by moulding or stamping. COLORS White, ivory and cream, integrally tinted throughout the entire tile substance -- not surface dyed or painted. Integral coloring to match any decorative scheme furnished on order. Mill painted Acoustone in white or ivory are available. SIZES Tiles are regularly made in 12 x 12-in,, 6 x 12-in. and 9 x 18-in. sizes, in y^-in., ''/is-in., iy^-in. and 1 5/| 6"in. thicknesses. Acoustone eei|jn9, County Court 0,hkosh, Wis. Architect: Granger and Bollenbacher, Chicago, III. 3 >1 In Perfatone a perforated metal tile conceals the sound absorbent pad. Type B pad is completely covered with a flameproof mem brane which prevents infiltration of dirt into the wool. Type C is covered on face, back and 24-in. edges with the same membrane, and then completely wrapped in flameproof muslin. 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 are 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. COLORS Ivory and white. SIZES Units are 12 x 24-in. with a center groove which gives the effect of 12 x 12-in. units. Perfoboord and Perfabesfos--When sound absorbing materials are to be exposed to severe abrasion, Perfaboard (perforated hardboard) or Perfabesfos (perforated asbestos board), are recommended for their wear-resisting qualities. These are attached to furring strips and backed with sound-absorbing pads. Perfatone walls and ceiling, studio of Radio Station WCCO, Minneapolis, Minn. Architect: Fred Semmens, New York City. rryfr,^:^- t--:-- ;. &:::** -'.'/ V. . 1 '"_,> ..cm y , V...--\' if - , . . :.*a; ' : ` --J-'U.' ... s^v-^ -- - . '- - / -; .; >'.V. ; aMBM&S5Kdgfl? SSfiSaSSSsifc--iai Must Applied -with -plastic cement directly to any clean, level surface. S0UM.S ;fe :O:i.0tr S o\ Thickness -v * `-C'nX Coefficients 128 256 1. y *,k * Noise Reduction 512. 1024 2048 Coefficient '- s HBwo o"; <>-v.> .i>J r>Vg.-f- Vi in.\^x I in. ,:V Y't 19, . -.30 ,ux y30 .'.52 i\NX >v ,' .58': 64 ; .80 .73 oT-. \82. .75 - ^ ^o , Average of coefficients 256 to 2048, inclusive, to neorest 5%. , Absorption coefficients based on cemented to plaster mountings. 1 UOi^ti'flitSliiiR^y^'lrfeWUabAd&iiiiMimeimAi^ii^tMiuSAtSHilfiS&i'' * Applied with ordinary plasterers' tools like any standard plaster finish. i y. Av/Y< ' ,,:xv,h ,;j>i *&/:'< .r>a-------' .2C Type F F M -Coefficients -U; Thickness z'V * Noise ' Reduction 128 256 512 1024 2048 Coefficient -~XV' ..... 1 -f'.-'-VN . Vi in.' ' >34 .30 .: sV 'M In. N> \ oi* Sf*. w -.3" 7V % Vi in- .35 .26 .31 '.55 .54 .61 S'67': .79 .69 iM50f .67 - -^<'-55 ' .69 ; .55 .38 \25 .26 .32 .60 .76 ' -5. \~ - - -4-'> i Average of coefficients 256 to 2048, inclusive, to nearest 5%.* ? o CD O >-* CD cn U Nj k/ 1 }.UiN1?9 SSSTtAfTiEiS 4Gt*P.S4JfM gCtDWPJAiN'Y: Economical, decorative wood fibre tile, mode by a unit felting proc ess which results in o tile of high ocousticol value. It should not be confused with wood fibre tile used for thermal insulation. Surface is free from puncturing and other surface oddities not uncommon in acoustical materials. Colors ground in oil or japan, reduced with mineral spirits, may be sprayed on Quietone. ADVANTAGES Inexpensive application and 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. Quietone, in any of the available colors, has high light reflecting value. It is easily cleaned with a vacuum cleaner. TEXTURES AND COLORS Standard 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 Acoustical Tile units ore 12 x 12-in., and are made both Yz and 1 -in. thick. Quietone ceiling, George Washington High School, Alexandria, Vo. Architect: Division of School Buildings, State of Virginia. * Sabinite Acoustical Plaster combines the features of standard plas ter finish with permanent sound absorbing qualities. It is a mixture of light weight aggregate, gypsum plaster or Portland cement, and special ingredients, proportioned to produce a sound absorbent structure when applied to brown coat plaster. ADVANTAGES In new construction Sabinite provides full acoustical correction at much lower cost than is entailed when sound absorbents are applied in completed structures. Sabinite is economical. It is mixed in the mortar box with water only and applied with ordinary plastering tools. Application to vari ous thicknesses obtains desired degrees of acoustical correction. Sabinite is tinted or pointed after application without loss of effi ciency. It is sanitary and vermin-proof. VARIETIES There are three varieties: Sabinite F; M; and 38, F and M are used over gypsum plaster bases; Sabinite 38, over Portland cement or Oriental Exterior Stucco bases in high humidity environments. Sabinite M, has higher noise absorption characteristics and a finer texture. TEXTURE Similar to heavy sand float finish. COLOR Ecru, ivory, cream, buff. Sabinite ceiling, lobby of Hershey Chocolate Corp., Hershey, Pa. Architect: Paul Witmer, Hershey, Po. 71 UNITED STATES GYPSUM COMPANY 300 West Adams Street Chicago, Illinois Sales Offices Albany, N. Y........................ 1106 National Savings Bank Bldg. Atlanta, Ga....................................................... 1726 Candler Bldg Baltimore, Md............. ....................Court Square Bldg. Birmingham, Ala.. . .............. 1203 Comer Bldg. Boston, Mass............. .........................505 Statler Bldg Buffalo, N. Y.........................................................1116 Rand Bldg. Charlotte, N. C.. . . ... 1013 Liberty Life Bldg. Cincinnati, Ohio................... ..............3012 Carew Tower Cleveland, Ohio................... .................627 Hanno Bldg. Dallas, Tex.................................................................... P. O. Box 896 Denver, Colo.........................................836 Continental Oil Bldg. Detroit, Mich.................................................7310 Woodward Ave. Houston, Tex........................ ......................2030 Commerce Bldg. Indianapolis, Ind.......... 1015 Architects' and Builders' Bldg. Kansas City, Mo...................................... 4638 Mill Creek Pkway Los Angeles, Calif.........................................807 Architects Bldg. Milwaukee, Wis..............................(At Mill) 439 W. Oregon St. Minneapolis, Minn.........................................1310 Foshay Tower New York, N. Y....................................................... 1230 Sixth Ave. Omaha, Neb........................ 312 Woodmen of the World Bldg. Philadelphia, Pa....................................................1616 Wolnut St. Pittsburgh, Pa................................... 1905 Commonwealth Bldg. Portland, Ore...................................................... 302 Spalding Bldg. St. Louis, Mo......................................................8032 Forsyth Blvd. Salt Lake City, Utah............................................ 400 Dooly Bldg. San Francisco, Calif.........................................2501 Harrison St. Washington, D. C...................................... 1122 Investment Bldg. Somson Plaster Board Company Sales Agents for United States Gypsum Company Crosby Building, Buffalo, N. Y. CD