Document on064ov0ywVNVvOoydGJNZXr

the o.M'fjinal * 1 glass fiber reinforced : j Y i23 3 U //I j V/ALUOAHO GESCRiPTlON Bestwall Gypsum Wallboard consists of a glass fiber reinforced core of gypsum rock enclosed between two layers of tough paper. The durable cream face paper is folded around the long edges to reinforce and pro tect the core. The ends are square cut and smooth finished. A strong gray paper is on the back side. The fiberglass content of Bestwall gypsum board prod ucts is an important and unique factor to consider in specifying drywall construction. Literally miles of glass fiber filaments of uniform strength and length are dispersed in the gypsum core to add greater resilience, strength and handling ease. FIBERGLASS OATA THICKNESS %" Va* 1/2" Firestop 5/a' Firestop APPROX. CONTENT IN MILES PER SQ. FT. 1.2 1.6 2.1 10.4 12.8 ADVANTAGES Fireproof--The solid core of gypsum wallboard is incombustible. Gypsum will not burn and will not transfer heat in excess of 212' F. until all its water of crystallization has been driven off in the form of steam. Strength--Readily resists flexural stresses and will not crack or sag when applied to ceilings in the spec ified manner. Flexible enough to conform to mod erately curved surfaces. Joint Treatment--Bestwall Wallboard is finished with tapered edges to accommodate the 8estwall Joint Systems or square edges for exposed joints. Fast Decoration--Gypsum Wallboard, a ''dry" mate rial, allows painting or other decoration shortly after application of Joint Treatment. Economy--Large, lightweight panels go up fast. They may be "scored and snapped" or sawed to size. Drywall--Plant fabricated gypsum wallboard elimi nates extreme moisture in wall constructions. UMinnO'iS :T- I ;Z: 1. Gypsum Wallboard shall not be used where it will be exposed to water or excessive moisture. Bestwall Gypsum Tile Backer Board shall be used in any high moisture area. 2. VA" Bestwall Gypsum Wallboard should be applied only to existing surfaces or used in temporary or display work. Surfaces should be sound. When nec essary, furring strips should not be spaced over 16' o.c. 3/a" Bestwall Gypsum Wallboard should not be applied to nailing members spaced over 16' o.c. Horizontal application must be used on ceilings. ,/2" or %" Bestwall Gypsum Wallboard should not be used on nailing members over 24" o.c. When applied to ceilings with the nailing members exceeding 16" o.c. the wallboard must be applied with the paper bound edges at right angles to nailing member. 3. All furring used in application of gypsum wallboard shall have a minimum cross section of 2" x 2' (nominal)-, with space limitations as above. aiiia SIZES LENGTH 6' to 16' (in even feet) WIDTH 4' THICKNESSES Va". %' V4*. %' EDGES Tapered, Square. Beveled (special order only) j OESCRIPT' 'N Bestwall Regular Gypsum Wallboard is manufactured with Tapered or Square Edges and faced with a strong, creanv colored paper which will take any type of decc-ative treat ment. V2" and %" wallboard with Tapered Edges are recommended for single layer application in new con struction. Tapered Edges are designed to be reinforced by the Bestwall Joint Systems for smooth, seamless sur faces. Square Edges are recommended for use where exposed joints are acceptable. Increased resistance to fire e*P*. ure and sound transmission depend upon greater board thickness used (see Technical Data Chart, p. 6). Wood stud load-bearing partitions faced on coth s,ds with V2" Bestwall Gypsum Wallboard have a : :e tpa ance of 40 minutes, as tested in accordance with t Standard Method of Fire Tests of Building Construct! and Materials specified by the American Society for ing Materials. When faced with %" Bestwall. the endurance is 25 minutes. %" Gypsum Wallboard is used primarily in reP3'*' ^ remodeling work. Light weight permits easy handling application. It is 3lso recommended for use m c layer laminated gypsum wallboard construction. Vi" Gypsum Wallboard is a lightweight ecc:': _: sum product for application directly over ex it ' and ceilings and for use on curved surfaces ana play work. Bestwall Gypsum Backer, designed for field ^^patiS* gypsum wallboard. acoustical tile and other c materials with adhesives, provides low cost. be app!i$d faces for further decorative treatments. It may , ^ over load bearing or non-ldVd bearing wood || framing with nails or clips. ; 1 SGP 0026552 INSULATING GYPSUM WALLBOARD(backed) gypsum sheathing SIZES j LENGTH 6' to 16' ! (in even feet) WIDTH 4' THICKNESSES vr EDGES Tapered, Square DESCRIPTION Bestwall Insulating Gypsum Wallboard is regular gypsum wall board with bright aluminum foil laminated to the back surface. In a single application it provides the advantages of regular gypsum wallboard, plus an effective vapor barrier and insulating qualities. It is manufactured with Tapered or Square edges. advantages fcsulation--Panels must be installed with foil side against the studs. To have reflective insulation value, FHA requires the foil to face a minimum air space of The aluminum Alii, according to U. S. Bureau of Standards Tests, reflects 90% of radiant heat. It provides insulation approximately qual to 1/2" fiberboard. fcpor Barrier--Bestwall Insulating Gypsum Wallboard pro ves an efficient vapor barrier. The aluminum foil stops ..)Por from entering the exterior wall construction, thereby Wucing condensation in stud spaces. SIZES LENGTH 8' 8'. 9' WIDTH Z 4' THICKNESSES '/a" EDGES V edge Tongue-and-Groove Square DESCRIPTION Bestwall Gypsum Sheathing is the only gypsum sheathing reinforced with glass fibers. The "asphalted" reinforced gypsum core is protected by highly water repellent paper, eliminating need for an underlayer of treated building paper (except where required by local building codes). The 2' wide sheathing is manufactured with precision formed tongue-and-groove edges to provide a structurally strong and stable wall. V-tongue-and-groove edges fit snugly minimizing wind infiltration. The 4' wide square-edge sheathing, applied vertically, com pletely eliminates the need for corner bracing. It is designed to meet FHA Technical Circular 12 requirements. Racking Tests were made in conformance with ASTM E72. ADVANTAGES Fireproof--Exterior wood stud wall is rated for one full hour fire-resistance from both sides in combination with 5/a" Bestwall Firestop or other 1-hour interior construction applied over studs and any exterior finish (wood siding, stucco, brick, veneer, etc.) over i/2" gypsum sheathing. Glass Fiber Reinforced--This exclusive development as sures greater flexibility and resistance to shock and setting, better nailing qualities and strength. Water Repellent--The gypsum core contains an emulsion to provide high resistance to water absorption. Meets ASTM 79-54 including the water resistance test. Economical--Large panels cover large areas quickly and with little waste. Building paper is not required (except where demanded by local building codes). New 4' sheathing eliminates corner bracing, thus keeping labor and material costs to a minimum. SGP 0026553 I NEW IMPROVED BESTWALL FIRESTOP Strength--Resists crosswise stresses. F;r5s*0n . flexural strength of 240 to 290 lbs. as compared"!* ASTM minimum requirements of 145 lbs. for %" Ii i. lar gypsum wallboard and a Federal Specifications miV* mum requirement of 105 lbs. for i/2" regular <*,,,*, ** wallboard. 6ypsum SIZES LENGTH 6- to 16' (in even feet) WIDTH 4' THICKNESS V?" % EDGES Tapered, Square or Tongue-and- Groove DESCRIPTION New Improved Bestwall Firestop, combining all the advan tages of the original gypsum wallboard in the original Type "X" gypsum wallboard, has substantially greater glass fiber reinforcement than ever before for increased fire protection, strength and better nailing qualities. The original Type "X" gypsum wallboard provided a full 1 hour fire retardant rating in single layer application over incombustible and combustible framed walls and parti tions and floor and ceiling assemblies. Now through greater glass fiber reinforcement, its fire resistance has been increased to permit two hours when used in a sin gle layer treatment as the ceiling below an incombustible floor and ceiling assembly. ADVANTAGES Economical--Large, lightweight panels handle easily and can be scored and snapped to desired size. Low Cost--New Improved Bestwall Firestop is one of the lowest cost fireproofing materials available today. Crack-Resistance--Resists cracks due to framing move ments, vibrations and settling. Unaffected by humidity or extremes in temperatures. MEETS BUILDING CODE REQUIREMENTS Bestwall Firestop in various assemblies meets Building Code requirements from 45 minutes to 3 hours for in* terior wall and ceiling construction in buildings of all types from highly incombustible to wood frame; and for various occupancies of residential, public and commer. cial character. SOUND TRANSMISSION RATINGS Official Sound Transmission Tests of various assemblies make possible partitions with Sound Transmission Class (STC) of 34 to 58. 5/a" Bestwall Firestop over |/2* Bestwall Sound Deadening Board each side of wood studs 16" on center has been proven in a full scale fire test to have a 1 hour fire resistance. This same con struction has an STC of 45. FIRE RESISTANCE Bestwall Firestop is recommended where extra fire resist ance is required in residential, commercial and public buildings. %" thickness for years has provided one hour fire resistance in single layer application on both walls and ceilings over wood or steel, while Vfc" thickness has provided 45 minutes fire rating in single layer application when applied over wood framing, for both walls and ceil ings. See the tabulation on pages 8-9 for greater fire resistance in single layer application for both V2" and %" th'ck Bestwall Firestop. The extra fire protection offered by Bestwall Firestop * built right into the core through the use of specific amounts of incombustible glass fibers and unexpanded vermiculite. V2" and %" Bestwall Firestop qualify for Building Cod* acceptance in the constructions as shown in the tab* on pages 8-9. Bestwall Firestop is listed by Underwrit ^ and carries the UL Label for 45 minutes, 1. 2 an hour Fire Resistance in various Designs and fof 1 Hazard Classification of 10-15 Flame Spread. fe Or an M its m e* Rr i Hf in' ll* M in m Is te a OE Fife Pro sect ttd lit * Ik MANIFEST FOR %" BESTWALL FIRESTOP FIRE HAZARD FIRE RESISTANCE CLASSIFICATION CLASSIFICATION Flame Spread 1015 Fuel Contributed 5-15 Smoke Developed 0.45 WAllBOABK ISSUt QE9 FLOOR AND CEILING Design No. 69--2 Design No. 217--2 Design No. 13--l1 hr. Design No. 2--1 Design No. 1--1 COLUMN PROTECTION Design No. 18--J hr Design No. 3--2 hr WALLS AND PARTinO1** No. 5--^ ,,r 0,'snn No. I--1 nL'5i<n No. 5--` O-iv^n No l`>--} Design No. 11--l h Mas*** TOU ARE PROTECTED AGAINST SUBSTITUTION of inferior material by Underwriters' Laboratories Inspection Service, as evidenced by the Underwriters' Labors which appears on the twin mounting tape binding each bundle of 2 pieces. And especially important to architects and building inspectors, the front of each sheet < j "Vs" Bestwall Firestop Type X" so that it's easy to identify when in place. 4 s * l 3f Be lk * SGP 0026554 FIRESTOP gypsum backer 0.S WIDTH ."-ff 2' j16' 4' THICKNESS %' EDGES Tongue-and-Groove Square ASCRIPTION 3estwall Va" Firestop Gypsum Backer, with greater glass ;lef reinforcement than ever before, is used as a backaj for decorative surface treatments of acoustical plas*s, tile, plywood and various veneers. A single layer jcplication of %" Bestwall Firestop Gypsum Backer on xd sides of wood or steel framing, enables load bearing i non-load bearing wall, floor and ceiling assemblies to wist temperatures rising to 1700F in a standard time Kmperature curve for one hour. .'restop Gypsum Backer consists of a gypsum core with ^expanded vermiculite, reinforced with literally miles of tensile strength glass fibers, firmly bonded to a 'trous grey paper on both sides. The vermiculite bai lees gypsum shrinkage by expanding when exposed to nt while the textile glass filaments keep the core intact n after its chemically combined water has been re*ased. Official tests by Underwriters' Laboratories have /awn the fire resistance of wall and floor and ceiling fcsemblies do not need the joints treated and finished * the fire resistance ratings shown in the chart on *9 8-9. COLUMN FIREPROOFING ASCRIPTION '^proofing with Bestwall Firestop Gypsum Wallboard <0*Wes a fast, efficient and economical method of pro'*8ng steel columns. Fire resistant assemblies of two three hours are obtainable depending upon the num** layers of %" Bestwall Firestop used. These layers ** fold in place by a combination of screws and metal Both the two and three hour fire rated assemblies firestop have passed Official Fire Tests conducted by Underwriters' Laboratories. `Wantages ^Resistance--3 hour fire resistive protection for steel can be obtained with three layers of s/8" Best^fjrestop and 2 hour fire resistive protection can be with two layers of %" Firestop. Where necessary * fire Protect'on can I36 obtained with two layers Bestwall Gypsum Wallboard and IV2 hour prowith 3 layers of Bestwall Gypsum Wallboard. --Low material cost, speed of erection and number of materials provides lower construe- i?sts. Lighter--As compared to other types of fireproofing, a dead load saving of from 50 to 75% can be realized with Bestwall Firestop Column Fireproofing. Speed of Erection--Bestwall Firestop Gypsum Wallboard can be installed quickly and easily when used for column fireproofing following Bestwall details. Minimum amount of the wire and adhesives are used. TWO-HOUR fire rated steel column assembly with %" Bestwall Firestop. THREE-HOUR fire rated steel column assembly with %" Bestwall Firestop. SGP 0026555 I I I PRE-DECORATED GYPSUM PANELINq TILE BACKER BOARD ETERNAWALL i i SIZES i i LENGTH WIDTH THICKNESS EDGE 8', ir, 12' 4' w Tapered Tl DESCRIPTION Bestwall Tile Backer Board is a water-resistant gypsum product with a light blue face paper, designed for use as a base for the adhesive application of ceramic, metal or plastic tile. The gypsum core consists of incombustible gypsum rock, reinforced with glass fibers, combined with an emulsion giving high water resistance. This new Bestwall product is ideal for bathrooms, kitchens, powder rooms, and all high moisture areas. Bestwall Tile Backer Board can be erected as easily as wallboard and requires no finishing of joints or nail heads with joint treatment nor further waterproofing under tile applied adhesively. Tile Backer Board is sealed at cut edges with a special 2" wide self-adhering vinyl tape. Approximately one roll per msf. wallboard. Also used over any joints under tile. : ia, , '- . . fk* .' . - Wi t ,, - -3 mff ;' 7J3TANJDARty C&LQRS^T-l ttk ADVANTAGES Water Resistant--Core is specially treated with a water resisting emulsion and the paper is treated in manufactur ing to make Bestwall Tile Backer Board more water re sistant. Economical--Taping joints and cut edges with vinyl pres sure-sensitive tape can save time and money. Ease of Application--Bestwall Tile Backer Board can be applied like regular gypsum wallboard. Cut edges can be sealed easily with vinyl tape and no waterproofing primer is necessary before applying the tile. Glass Fiber Reinforced--Miles of glass fiber filaments of uniform strength and length are dispersed in the gypsum core to provide greater shock resistance and greater com pressive strength. Convenience Outside Tile Area--For areas not covered by tile, joints and nail heads may be treated as those in regu lar wallboard and the surface primed and painted with adjacent areas of regular wallboard. LENGTH 8', 10' (other lengths on order) SIZES WIDTH 4' THICKNESSES V2 (Vs". %" on order) EDGES Beveied DESCRIPTION Bestwall Eternawall combines all the advantages cf mtlar gypsum wallboard with the beauty and durafc. : vinyl. The fireproof gypsum core of the panelsj'e "" forced with glass fibers for extra strength. T~t *linen-textured vinyl surface provides permanent crack and chip-resistance. Eternawall Panels are '* in 5 standard colors: Sand, Shadow Gray, Snowdrht. foam Blue and Spring Green. Also available in the S`.J" Line of Eternawall is Woodmere Walnut, a stri* '* ** pattern that gives a rich true-wood appearance. The Decorator Line of Eternawall is availab'e in c ^ trend setting colors and patterns that oi`er vniim-tw sign possibilities. Both the standard colors and the Decorator Line ^ bright, attractive interiors or accent walls in re well as commercial and institutional structures whenever beautiful, easy-to-clean walls are desireo. ADVANTAGES Fade-Resistant Colors--Eternawall colors are^perfade resistant. Inexpensive to maintain, the cc c or design will not be impaired when cleaner. ^ Easy Maintenance--An occasional wipe -'n a keeps the vinyl surface clean and new treatment is needed. The surface may desired, to accommodate subsequent changes Easy to Install--Large panels handle with regular gypsum wallboard. Vinyl surface is ' .. and the board snapped to size. Nails of it131 blend with the paneling. , Reinforced with Glass Fibers--Miles of gj3Sf force the gypsum core for added imp'-'1-1 Sl resilience. . ,- SGP 0026556 trU-GRAIN il vi DELUXE TRU-GRAIN 12c Be -i i ; I -I Sj m T: * -I h. :i OT "Y PINE HONEY ASPEN MELLOW MAHOGANY FRUITWOOC HERIT/ GE CHERRY LENGTH 8' 9' 10' WIDTH 4' THICKNESSES 3/b' O/2" on order) EDGES Square SIZES LENGTH 8' 9' 10' WIDTH 4' 0c :S THICKNESSES order) EDGES Square DESCRIPTION Sestwall Tru-Grain Gypsum Paneling is regular gypsum tailboard pre finished with beautiful photographic repro ductions of selected wood panels. These reproductions are Printed on a special paper and cemented to the face of ft* gypsum wallboard. random plank design. In addition to providing high style beauty, this premium gypsum paneling offers added dura bility. Deluxe Tru-Grain has a 2 mil clear vinyl covering which gives added resistance to scuffing and insures classic long-lasting beauty. If* Bestwall Tru-Grain Line is available in three low-cost wdgrain patterns, Knotty Pine, Honey Aspen and Mellow Mahogany. The random plank design of Tru-Grain gives a andsome true-wood look and makes joints easier to con^l. All are finished with a durable transparent coating. ^stwalt Deluxe Tru-Grain is available in two luxurious "dgrain patterns, Fruitwood and Heritage Cherry in Bestwall Tru-Grain Gypsum Paneling combines the beauty of wood panels with the cutting and handling ease, the incombustibility and economy of gypsum wallboard. It can be scored with a knife and snapped off to the desired size or can be sawed. Ideal for new construction as well as remodeling, it lends warmth and color to homes, offices, motels, restaurants and other commercial and institutional buildings. ADVANTAGES ^ Finishes--Five striking true-wood reproductions are friable: Knotty Pine, Honey Aspen and Mellow Mahogany * the Tru-Grain Line and Fruitwood and Heritage Cherry the Deluxe Tru-Grain Line. --Miles of glass fibers dispersed in the fireproof hi core assure added strength and resilience. Deluxe rain has a 2 mil clear vinyl covering to provide extra .Wf resistance. panels. Can be quickly nailed in place with matching color headed nails. Low Maintenance--Tru-Grain is easy to clean. Just an occasional wipe with a damp cloth will keep panels fresh and sparkling. Fire Resistance--The core of Tru-Grain is fireproof gyp sum, a mineral that will not burn. APPly---Large panels go up fast with no heavy Oling. Tru-Grain is available in eeasy-to-apply 4' x 8' Easy-To-Cut--Bestwall Tru-Grain can be scored with a knife and snapped off to the desired size or can be sawed. SGP 0026557 TECHNICAL DATA GYPSUM WALLBOARD CONSTRUCTION CONSTRUCTION THICK WEIGHT NESS LB/SQ.FT. WALL SURFACE SOUND TRANSMISSION CHARACTERISTICS INDIVIDUAL FREQUENCIES - CPS 250 350 500 700 1000 1400 PARTITIONS: 2* x 4" Wood Studs: 16" 0. C. Load bearing except when noted "N'\ 4Vt* 4V * 4*4* 4vi" 4Yt* 4ft* 65l'fftt** 5* (N) 5!',* 5Vs* 6* (N> Nailabla Steal Stud: Load Bearing 3ft"24*0. C. Screw Type Steel Stud: Non Load Bearing iy- 24" 0. C. 3ft* 24" 0. C. 3!/." 24' 0. C. 1)4*24* 0. C. lV'i'24'O. C. SV4' 5ft* 5'/," 4ft* 6ft* 2!'." 4ft* 514' 51*' r/r 3Vi'24*0. C. 3V* 24" 0. C. 3ft* 24* 0. c. Semi-Solid: Gypsum Stud Non Load Bearing Solid Gypsum Board w,~ 6* w ivr 4vr 2ft* 2* 2 5.2 ' Beslwall Both sides 5.9. ' Bestwall. Both sides 60 ' Bestwall. Both sides, with Mineral Wool in stud space 52 ft" Bestwall Firestop. Both sides 5.9 Vt" Bestwall Firestop, Both sides Vi" Bestwall Firestop. Both sides, with Mineral Wool in 6.0 stud space 70 Bestwall Firestop. Both sides 22 16 31 38 9.5 Bestwall Firestop. 1 layer one side. 2 layers other side 23.5 19.5 34 5 40 120 Bestwall Firestop. 2 layers each side 26 5 22 37 43 5 8.5 Bestwall Firestop over ft* sound deadening board both sides 25 30 43 52 H*13.4 Bestwall Firestop. 2 layers each side staggered studs 41 41 43 48 Vt" Bestwall Firestop. 1 layer nailed one side, 1 layer on 7.1 resilient furring other side 27.5 26 33 41 43 49 SI 51 42 ft * Bestwall Firestop. 1 layer nailed one side. 1 layer on resilient furring other side ptus fiber glass insulation 72 m stud space 33.5 35 43 50 5 51 54 55 55 54 ft* Bestwall Firestop, 2 layers one side. 1 layer on resilient 9.6 furring other side 32 5 32 33 44 5 49 52 5 55 56 5 *9 4 +---| j, 82 Vt" Bestwall. 2 layers both sides 9.9 Vi" Bestwall. 2 layers both sides no Vi" Bestwall, 2 layers both sides, staggered studs 27 24 31 35 40 42 46 - 3 ---- -- ------ -- -- _ 42 40 39 40 45 42 45 - l- . 6.5 ft* 8estwall Firestop, 1 layer each side II 5 ft" Bestwall Firestop. 2 layers each side _ - 5.7 /i* Bestwall Firestop. 1 layer each side 25 29 35 35 40 41 44 43 33 36 6.0 ft* 8estwail Firestop, 1 layer each side 20.5 26 31 37 41 5 46 50 SOS 42 40 8.5 ft" Bestwall Firestop. 1 layer one side. 2 layers other side 24 25 33 40 46 49 52 51 44 45 Vi* Bestwall Firestop. I layer one side, liber glass insulation 8.6 in stud space. 2 layers other side 31 37 45 49 52 55 57 55 50 48 a Yt" Bestwall Fiiestop. 1 layer one side fiber glass insulation in stud space. 1 layer ft" Bestwall Firestop over 8.4 l" core board other side 30 38 43 49 51 54 55 54 51 >3 110 Vi" Bestwall Firestop. 2 layers each side 28 29 36 44 48 52 55 53 47 51 * ft" Bestwall Firestop. 2 layers one side. 1 layer over Vi" 88 fiber glass board other side 25 33 41 47 52 54 56 55 50 51 * Vt" Bestwall firestop. 2 layers each side, fiber glass 111 insulation in stud space 36 41 49 51 S3 55 56 55 50 5? 5 Bestwall Hummer System "8" ft" Bestwall Firestop, 1 layer each side 72 l" x 6* Rib 21 17 27 34 36 40 39 43 36 ;6 8 Vi* Bestwall Firestop over Vi" Sound Deadening Board 10 0 each side of 2ft" t 3" Gypsum Rib 28 36 43 46 50 54 58 59 58 4 Bestwall Hummer System "C" 7 8 Vt" Bestwall. 2 layers each side of ft" x 6" Rib 23 23 31 36 36 38 39 39 > * 8 1 '/* Bestwall each side. 1* Core Board 9 1 ft" Bestwall Firestop each side l" Core Board - - ---- - - Oouble Solid Gypsum Board 4" 5* 6* 6* 6* 6* 13.4 V* Bestwall Firestop, 2 layers each side 1" Rib 13.4 ft" Bestwall Firestop. 2 layers each side 1" Rib 29 5 31 32 34 34 5 37 38 36.5 35 37 5 39 5 39 5 38 38 5 -- -- 4J 46 5 - 9.5 13 V%" Bestwall over ft" Bestwall Firestop. each side l" ribs --- -- - - - - Vt" Bestwall over 1" Core Board, each side of 3* air space 31 36 41 47 49 49 49 47 51 : i~ Vi" Bestwall. 1 layer over 1* Core Board each side 3* 17 air space with 1* Core Board centered in air space 29 34 40 45 47 50 54 55 59 Vi" Bestwall. I layer over l" Core Board each side of 3* 172 air space with 1* Core Board centered in air space and fiber glass Insulation m space on 1 side 36 45 49 53 55 56 56 53 60 FLOOR A CEILING: Wood Joists 16* 0. C. Finished floor on rough subfloor Ceiling -- II.4 11.4 12 0 14.6 Steel Bar Joists 24" 0. C. Ceiling 2" Concrete Floor on Metal lath centering With 2ft* Concrete Floor STEEL COLUMN Fire Proofing 11 5 _ - 34 2 34.2 33 9 34 I 34 6 - -- ~ Vt" Bestwall Vz" Bestwall Vt* Bestwall Firestop Vt* Bestwall Firestop 2 layers of Vi* Firestop with resilient furring channel 24* 0. C. between layers Vi" 8estwall Firestop applied to resilient metal furring 24* 0. C. \4" Bestwall, 2 layers Vt" Bestwall. 2 layers Vi* Bestwall Firestop nailed or screwed to metal furring 16" 0 C. ft" Bestwall Firestop Backer, nailed nr screwed to metal lurrmg 16" 0. C. Vt" Bestwall Firestop. metal furring '4" 0 C. ft" Bestwall Firestop metal furring 34* 0 C V' Beslwall Firestop. melal furring 34" 0 C ft" Bestwatl. 2 layers ft" Bestwall. 3 fayers ft" Beslwall Fireslop layers ft * Bestwall Firestop 3 layers ------------ -- -- ---- ---- ~ -- 34 35 37 44 48 45 --- --- ------ ---- ---- ------- ------- ---- -- -~ --- - ._ _ _ - - -- - - --- - --- -- 49 - -- -- - - _ - -- - 49 -- -- _ _ ~ ~ . ------ * 4 m"~" --- --_ 1. Fire Hazard Clmiflcetlofr--Official Underwriters' Tests. V' end V' Bestwell Firestop. 10-15 (LABELEO) Vs", end V" Bestwall. 10-15 (NOT LABELEO). 2. This tablets a summary only, based on tests sponsored by (he Bestwall Gypsum Company, the Gypsum Association and/or others. The fire resistive ratings, weights and sound characteristics are based on assemblies with specific details as covered rn official test reports and/or publications of Underwriters' Labor atories. the National Bureau of Standards. Ohio State University. Geiger and Harnrne. Riverbank Laboratones.Ohio Research Corporation jnd Gypsum Company. 3. Inconsistencies in test results are due to tests over a f :o some variations in laboratory facilities. The performance of a wall or a floor and ceiling jssembfy^'J1 Sandibsyafdfeocotredanbry/ointhsetarllaoptieonnindgetdaeilstaailtsi,ntbeyrsfeixcttuiorensw, ipthlucmobmmmias- J into the assemblies. (i ** .4* SGP 0026558 <!jSo TRANS. CHAR. SPEECH 'rM; : AVG- PRIVACY RANGE 6 TEST REF. FIRE RESISTANCE RATING 7 TEST REF. MODEL BUILOING CODE APPROVALS 8 to M 3* : 40 ' JS :: 3) '! ttSP _ - _ - 38 41 46 54 46 53 8S-234 -- ~ OR-64-8 OR 64-11 OR 64-12 OR-64-67 BS-244 OR-64-L9 OR 64-16 25 Min. 40 Min. 1 Hr. 30 Mn. 45 Mtn. I Hr. 1 Hr. VA Hr. 2 Hr. 1 Hr. 2 Hr. 1 Hr. I Hr. -- -- U.L. M U.L. 45 EST. T -194 T-3006 EST. EST. EST. ABC ABC ABC -- BC ABC -- ABC _ - - 51 OR-64-15 VA Hr. ^38 - 39 . 43 _ _ - BS-225 -- BS-235 1 Hr. IV* Hr. - EST. -- _ - - A A - _ 38 _ 1 Hr. <M - - 2 Hr. i X TU 62-72 1 Hr. j 45 OR-63-11 I Hr. ai 40 48 OR 64-32 VA Hr. ii 7 53 OR-64-51 W, Hr. U.L. 43 U.L. 44 A 8C sc T-2316 T-2016 EST. EST. ABC - - t 17 ; t j 46 53 OR 64-61 VA Hr. 51 OR 64-52 2 Hr. 53 OR-64-34 2 Hr. ; : so 54 OR-64-50 2 Hr. EST. EST. EST. EST. - -! K 37 BW-8 Ft. 1 Hr. n 56 OR-64-57 1 Hr. :i 34 37 TL 60-131 I Hr. -1 37 _ 2 Hr. j X - - 2 Hr. -; 17 | 40 i TR-57-42 2 Hr. TR-57-43 3 Hr. - -- VA Hr. 52 OR-64-39 2 Hr. -! 40 54 OR-64-58 3 Hr. U.L. 10 EST. T-1276 _ - U.L. 47 U.L. 45 U.L. T-2575 EST. ABC - ABC _ - ABC ABC -- ABC - 58 OR 64-59 3 Hr. .j t~ i~ } -- -- - _ 15 Min. -- 25 Min. -- 45 Mm. - 1 Hr. _ 2 Hr. EST. -- U.L. 41 U.L. 41 U.L 4217 - ABC ABC C ABC _ ' ! ** 49 TL-61-155 1 Hr. -- -- 30 Mm. -- - 1 Hr. !_ \- bi ~~ j: - __ -- - - -- -- - _ I Hr. I Hr. -- VA Hr. - H? Hr. - 2 Hr. _ 1 Hr. -- VA Hr. -- 1 Hr - 3 Hr. U.L #33 -- -- U.L. #2 _ U.L 417 U.L. #13 U.L. **69 _ -- U L. #8 U.L #18 -- -- ABC ABC -- - - -- -- - ****** Sound Characteristics is Sound Transmission Class /decibel loss in 500-2800 CPS ranga. ^.Underwriters' Tests hav ^ sembhes of Fireslop. 'HSftfPUe1 Building Code Approvals" A. refers to International Conference Offi a^s; -,eJe,s to Southern Building Code Congress; C, refers to ncials Conference of America. Additional Approvals requested. BESTWALL GYPSUM WALLBOARO PRODUCTS Be SYSTEMS ENGINEERING The Bestwall Gypsum Company has long been a leader in Laminated Gypsum Wallboard Partition Systems. First with proven fire and sound ratings, Bestwall Systems offer the utmost in protection and econ omy. The laminated construction of these strong, durable systems provides a resis tance to nail pops and joint beading that often plague conventional drywall systems. Bestwall Systems Engineers, specialists in the installation of these drywall systems, are available through Bestwall Gypsum Company Sales Offices to assist with archi tectural detailing, quantity surveys, and onthe-job construction. They are thoroughly trained to recommend the proper combi nation of systems to meet the most de manding specifications. SYSTEM FIRE RATINGS SOUND CONTROL PAGE TWO LAYER....................... . 1 Hr........... . .38 Db... . . .10 STRIP LAMINATION____ ---- .... . .34 Db... . . .11 214" SEMI-SOLID.......... . . 1 Hr........... . .30 Db. .. . . .12 4" SEMI-SOLID................. . . 2 Hrs......... ..37 Db. . . ... 13 5" SEMI-SOLID................. . .3 Hrs.......... . .40 Db. . . . . .13 SEMI-SOLID GYPSUM STUD WALL................. . . 1 Hr. Est.. . .51 Db. . . . . .14 2" SOLIu............................ .2 Hrs......... . .36 Db. .. . . .15 DOUBLE SOLID .............. . . 2 Hrs.......... ..47 Db... . . .16 SOUND DEADENING BOARD ........................ . . 1 Hr........... ..45 Db... . . .17 METAL STUD FRAMING . . 1 Hr........... . .42 Db. . . . . .18 KtfWALL THE FOLLOWING METAL COMPONENTS MANUFAC TURERS ARE COOPERATING WITH THE BESTWALL GYP SUM COMPANY'S SYSTEMS ENGINEERING PROGRAM Curtis Partition Corp......... 722 Liberty Ave., North Bergen, N. J. Donn Products.......................700 Bassett Road, Westlake, Ohio Henges Company.............. 2814 Locust Street, St. Louis 3. Mo. National Roirng Mills.............. P. 0. Box 205, Malvern, Penna. Neslo Partitjjlis.................. P. 0. Box 427, Doylestown, Penna. Penn Metal Mp........... .. P. 0. Box 1468, Parkersburg, W. Va. White Partitityis Co. . .f... 56 Glenwood Ave., Boston 36, Mass. .# '' '9 SGP 0026559 TWO LAYER Laminated Construction ONE-HOUR FIRE RATED WHAT THE TWO-LAYER LAMINATION SYSTEM PROVIDES: FIRE RESISTANCE--ONE-HOUR (with two layers 3/s" gypsum wallboard). RESISTANCE TO NAIL POPPING--Freedom from nail popping and joint bead ing which plague conventional drywall systems. STRENGTH!--Two-layer lamination has greater strength than single layer application. STRAIGHT WALL & CEILING SURFACES--Lamination creates smooth mono lithic walls and ceilings. SOUND TRANSMISSION LOSS--43 Decibels (Tested before 1957), 38 Deci bels (Tested 1958). with two layers %" gypsum wallboard. WHAT THE TWO-LAYER SYSTEM IS! Lamination is an advanced system of wall and ceiling construction erected by laminating two layers of Bestwall Glass Fiber Reinforced Gypsum Wallboard to conventional framing. The first layer is nailed. The second is applied with adhesive and reduced number of fasteners. It is the basic sys tem for fire-rated, durable walls and ceilings over framing for residential, institutional, commercial, and multi-dwellings work in new construction or remodeling based on the original two-layer appli cation developed by E. B. Hummer in the early 1930's. Reference: Bestwall Hummer Systems Brochure ?rBW-62380 i .< :t i i ,i i a -' ~> CORNER DETAIL I'iif-y/y-j \xjj! [id i! i '/ < CEILING DETAIL VA. WALL SECTION t FLOOR DETAIL 10 .) I ..yjij ,; i -.:.i 3 .i.Nr.jrii^^i.'.a Be STRIP LAMINATION WHAT THE STRIP LAMINATION SYSTEM PROVIDES: RESISTANCE TO NAIL POPPING--Same freedom from nail popping and joint beading provided by two layer system. STRENGTH--Lamination at board center, edges, and ends greatly strengthens application. STRAIGHT WALL AND CEILING SURFACES--Lamination creates smooth monolithic walls. SOUND TRANSMISSION LOSS--34 Decibels (Tested before 1957). WHAT STRIP LAMINATION IS! This original strip laminated method of applying Bestwall Gypsum Wallboard provides nearly all the advantages of two-layer lamination at lower cost. 8" wide strips of 3/a" gypsum wallboard 2' on center (4" wide at ceiling and side wall intersection and at floor) are applied at right angles to framing of walls and ceilings. y2" Bestwall Gypsum is laminated to these strips. The System is recommended for framed residential and commercial work in new construction or remodeling-- wherever straight walls and ceilings of long-lasting strength and smooth surface appearance are desired. iBW-62385 i-X CORNER DETAIL CEILING DETAIL 'A b ''yiiin'ii WALL SECTION FLOOR DETAIL SGP 0026561 SEMI-SOUP Non-Load Bearing Partitions ONE-HOUR FIRE RATED WHAT THE SEMI-SOLID SYSTEM PROVIDES: FIRE RESISTANCE--ONE-HOUR with %" Bestwall Firestop. FREEDOM FROM NAIL POPPING. ECONOMICAL--Ease of application and speed of installation can save time and money. STRENGTH--More rugged as determined by ASTM E 72-55 Impact Test than wall with 2" x 4" studs, 16" o.c., faced with y2" gypsum wallboard. STRAIGHT WALL SURFACES--Lamination creates smooth monolithic walls and reduces joint beading. EXTRA USABLE FLOOR SPACE--With 2W' thick partitions, 20 sq. ft. addi tional floor space when compared with 2" x 4" stud wall construction for every 100 lin. ft. of wall. SOUND TRANSMISSION LOSS--35 Decibels (Tested before 1957), 30 Deci bels (Tested 1958). (2y4" partition.) WHAT THE SEMI-SOLID LAMINATED SYSTEM IS! The Bestwall Hummer Semi-Solid Gypsum Partition System is the original non-load bearing con. struction erected by laminating %" Bestwall Firestop Gypsum Wallboard to 1" x 6" gypsum nt* spaced 24" on center. Other board facings may be used. 6" wide ribs of \y4", 1%", and m* thickness are also available for wider air space. The Semi-Solid Partition is recommended (of institutional, commercial, and residential work in both new construction and remcdeiing *hw. ever the best in fire-rated, non-load bearing thin partitions is required. Reference: Bestwall Hummer Systems Brochure #BW-62390 IE I n: ~L I HORIZONTAL SECTION--2l/t" THICK WALL USING 1" RIB CEILING DETAIL m .1^1 . 54^ .fS PRE-LAMINATED RIBS A* 5. WALL SECTION WOOD h METAL 1 i FLOOR DETAIL 12 i0 r-ARrino* SGP 0026562 12c `Wrs;;:.! /.ui3:i-i;(3 r^ijiirsTr ' ^ 5 Tr*'! S ' i* {j *K j F - `' ] * Q 4" and 5" SEMI SOLID Non-Load Bearing Partitions TWO-HOUR and THREE-HOUR FIRE RATED WHAT THE 4" SEMI-SOLID NON-LOAD BEARING SYSTEM PROVIDES: FIRE RESISTANCE--TWO-HOURS with two layers of %" Bestwall Firestop. SOUND TRANSMISSION LOSS--42 Decibels (Tested before 1957), 37 Deci bels (Tested 1958). WHAT THE 5" SEMI-SOLID NON-LOAD BEARING SYSTEM PROVIDES: FIRE RESISTANCE--THREE-HOURS with two layers of %" Bestwall Firestop. SOUND TRANSMISSION LOSS--47 Decibels (Tested before 1957), 40 Deci bels (Tested 1958) with 1" low density fiber board in air space. Both Systems Provide: STRENGTH--Will withstand abuse as determined by ASTM E-72-55 Impact Test. STRAIGHT WALL SURFACES--Lamination creates smooth monolithic walls. WHAT THE 4" AND 5" SEMI-SOLID NON-LOAD BEARING SYSTEMS ARE! These Semi-Solid Gypsum Partition Systems are non-load bearing constructions erected by lami nating two layers of %" Bestwall Firestop Gypsum Wallboard to 1" x 6" gypsum ribs. Recom mended for commercial and multi story dwelling work in both new construction and remodeling-- wherever the best in fire-rated, non-load bearing partitions is required. Reference: Bestwall Hummer Systems Brochure #BW-62390 I HORIZONTAL SECTION--4" THICK WALL ............ I. ........ .......... - ................ I ---------- HORIZONTAL SECTION--5" THICK WALL 4" OR 5* -----r----------- L L_______ -------------------:_______ _____ L_ CORNER DETAIL METAL CEILING DETAIL rry h" T F Jt it s t_ -i r J-Ul WALL SECTION 21/4" PARTITIONS-CORNER AND JUNCTURE FLOOR DETAIL 13 SGP 0026563 Semi-Solid GYPSUM STUD Partition ONE- and TWO-HOUR FIRE RATED WHAT THE GYPSUM STUD PARTITION SYSTEM PROVIDES: FIRE RESISTANCE--Estimated ONE-HOUR with %" Bestwall Firestop each side. Estimated TWO-HOUR rating with 2 layers of %" Bestwall Firestop each side. SOUND TRANSMISSION LOSS--%" gypsum wallboard applied over V2" Bestwall Sound Deadening Board each side of gypsum studs carries an STC of 51. STRENGTH--Proven in ASTM E-72-55 Impact Test to be the most rigid of many gypsum non-load bearing partition systems. ECONOMICAL--Needs fewer screws than other partition systems. Requires no expensive lumber or metal, goes up fast. ADAPTABILITY--Conducive to installation of electrical facilities. EASY THREE-STEP ERECTION--(1) Place metal runners top and bottom. (2) Place gypsum studs 24" o.c. (3) Apply wallboard faces on each side. WHAT THE GYPSUM STUD SYSTEM IS! The Bestwall Hummer Gypsum Stud Partition System is the most advanced gypsum drywall parti tion system. It consists of 2V2" thick by 3" wide solid gypsum studs, V2" or %" gypsum face boards, and metal or wood floor and ceiling runners. The gypsum stud is a four-layer laminate of 3" wide strips of %" gypsum board. The face panels are Bestwall Regular or Fire-Rated Gypsum Wallboard. This Gypsum Stud Partition is an incom bustible, non-load bearing partition system recommended especially for residential, multi story dwelling, and commercial construction. It goes up like a metal stud partition. SYSTEMS ENGINEERING 2" SOUP LAMINATED Partitions TWO-HOUR FIRE RATED WHAT THE 2" SOLID SYSTEM PROVIDES: FIRE RESISTANCE--TWO-HOUR with Bestwall Gypsum Wallboard. STRENGTH --Will withstand abuse as determined by ASTM E-72-55 Impact Test. STRAIGHT WALL SURFACES--Lamination creates smooth monolithic walls. EXTRA USABLE FLOOR SPACE --20 sq. ft more floor space compared with 2" x 4" stud wall construction for every 100 lin. feet of partition. ECONOMICAL --Low material and construction costs. SOUND TRANSMISSION LOSS--36 Decibels (Tested 1958). WHAT THE 2" SOLID SYSTEM IS! This laminated non-load bearing Solid Gypsum Partition System consists of 1" homogeneous core board with face layers of V2" Bestwall Gypsum Wallboard. Reference: Bestwall Hummer Systems Brochure jrBW-62395 <" ' -. '"T........ HORIZONTAL SECTION OF WALL 3? CORNER DETAIL SGP 0026565 DOUBLE SOLID Laminated Partitions TWO-HOUR FIRE RATED WHAT THE DOUBLE SOLID SYSTEM PROVIDES: FIRE RESISTANCE--TWO-HOUR (ll/z" gypsum each side of 3" air space) STRENGTH--Proven in ASTM E-72-55 impact test to have greater resistance to abuse than a standard frame or thin solid wall. STRAIGHT WALL SURFACES--Creates smooth monolithic walls. 3" CENTER AIR SPACE--Space for piping-conduit--fixture framing for additional sound transmission loss. SOUND TRANSMISSION LOSS--47 Decibels (Tested 1961). WHAT THE DOUBLE SOLID SYSTEM IS! This non-load bearing Double Solid Gypsum Partition System is erected by laminating 1/2" Bestwail Wallboard to 1" tongue and groove core board each side of an air space. It is recommended for corridor and party walls in high rise construction where good sound transmission resistance and fir* resistance are needed. Reference: Bestwail Hummer Systems Brochure #BW-62400 f CORNER DETAIL CEILING DETAIL 21 x ~ ~~ HORIZONTAL SECTION OF WALL WALL SECTION -^y FLOOR DETAIL M 16 ;f.j i ,i\s.L i\rWA .1 'Ll/. i'f STEMS i 12c Be SOUND DEADENING SYSTEM ONE-HOUR FIRE RATED WHAT THE SOUND DEADENING SYSTEM PROVIDES: SOUND TRANSMISSION LOSS--Excellent sound isolation properties, up to 50 STC in various assemblies. FIRE RESISTANCE--ONE HOUR fire rating with 1 layer of %" Firestop. LAMINATED CONSTRUCTION--Fewer nails and laminated construction prac tically eliminates nail popping and joint beads. ECONOMICAL--Easy to install, fast erection. WHAT THE SOUND DEADENING SYSTEM IS! TTie Bestwall Sound Deadening System is a low cost system designed for use in wall and floor and ceiling systems #here a reduction in the passage of sound from room to room is desired. Specially manufactured, Bestwall Sound Oeadening Board is ideal for residential or apartment type construction. In addition to this system's excellent sound control prop erties, it can be used in combination with %" Firestop to provide an exclusive One-Hour Fire Rating as proven by the Ohio State Testing Laboratory in Test Number T-3006. In this test, Vz" x 4' x 8' Bestwall Sound Deadening Board a$ applied vertically to each side of 2" x 4" wood studs spaced 16" o.c. top and bottom with joints staggered on opposite sides by nailing with 5d coated nails spaced 24" o.c. at joints, edges and intermediate framing. 5/a" Bestwall Firestop was then applied vertically over the Sound Deadening Board with joints staggered on opposite sides and was nailed 12" o.c. around the perimeter with one nail per stud in the field of the board. Bestwall Firestop was laminated to the Sound Deadening Board, using Bestwall Laminating Compound applied in 6" wide strips around the perimeter and vertical centerline of each full Bestwall Firestop sheet and the wallboard joints were taped and finished. This assembly developed an STC of 46, as well as resulting in the exclusive OneHour Fire Rating. SGP 0026567 METAL STUD PARTITIONS What Metal Stud Framing Provides: Simple and fast erection Variety of sound and fire ratings available 1 Hour Fire Rating with %" Firestop on each side of l5/a" 42 (3%" stud) 21/z". or 3 Va" metal stud- ~STC of li/2 Hour estimated fire rating with Va" Bestwall Firestop two layers one side, one layer nth. side--STC of 43 (3%" stud) er 2 Hour Fire Rating with two layers of %" Bestwall Firestop each side--STC of 47 (3%" stud) 2 Hour Fire Rating with same as above with 1 y2" blanket in cavity--STC of 52 (3%" stud) All incombustible components What Metal Stud Framing Is! Metal Stud framed partitions are non-load bearing constructions consisting of metal studs inserted into floor and ceiling tracks with Bestwall Gypsum Wallboard (or Firestop) attached to studs with drywall screws. These partitions are recommended for institutional, commercial and multi story dwellings work in new and remodeled construction when low cost incombustible partitions with good fire and sound ratings are required. i Reference: Bestwall Metal Stud Partitions #BW-62120 l: i! .' CEILING SYSTEMS 11a See Bestwall Gypsum Sweet's catalog Number Be for: a--Bestwall Gypsum Incombustible Acoustical Tile b--Bestwall Gypsum Incombustible Ceiling Tile c--Bestwall Gypsum Incombustible "Firestop-120" Ceiling Tile (Two-hour rated ceiling assembly) o METAL ACCESSORIES \ Pre-Decorated (Aluminum sections in matching finish for Eternawall available for wallboard). %" thick fj 1 Ii DIVIDER INSIDE CORNER METAL TRIM JO OUTSIDE CORNER METAL CORNER 18 ANGLE EDGE METAL CASING SQUARE NOSE METAL CASING hat SECTION SGP 0026568 12c BESTWALL GYPSUM WALLBOARP PRODUCTS Be V{S 7 7'. Ti i'\1 j i iv i c r. RIN G 3estwal' Joint System Products are designed to conceal -ints and nail heads. All have easy working character 's and very low shrinkage. Used in recommended ^jjrt treatments, they literally surface weld Bestwall Gyp sum Wallboard panels together, providing smooth, unin terrupted walls with joints as strong as wallboard itself, instructions are included on each container. gcstwall Joint System Compound--A plasticized com pound used for both bedding and topping Bestwall Tape ,nd for spotting nail heads. Sanding may be eliminated jf careful application. Beady Mix Joint Compound--A prepared wet mix product nhich is used for taping and finishing joints, cornerbead, and nailheads. i-Oay Wallboard Joint Compound--A setting type matertal that is formulated to harden in 2l/z to 3 hours. It is designed for taping and all coats preceding the final aat on joints, cornerbead, and nailheads. Sestwall Bedding Compound--Designed to provide maxiium adhesion of tape to the joints. It spreads smoothly. Bestwall Topping Compound--Used for finishing taped oints and spotting nail heads. Sanding is unnecessary, tong working and low shrinkage. Bestwall Tape--Includes skived edges and center '-rease, this tape is roughened for excellent bonding quali;ies. It achieves good porosity and rapid drying of joint idhesive. Stabilized against varying humidity conditions, I reduces uneven expansion and edge wrinkling. iOlNT ' r iPi-ICIFICATiONS Scope--All walls and ceiling surfaces are included. Furnsh all labor and material necessary to reinforce and con`cal joints between gypsum wallboards and cover nail ''Wds in a first-class workmanship manner. Materials--1. One-Material Treatment--Bestwall Joint System Compound or Bestwall Ready Mix Joint Compound. Both used for bedding and for spotting nail heads. 2. Two-Material Treatment--Bestwall Bedding Compound or Bestwall 1-Day Wallboard Joint Compound and Bestwall Topping Compound. Specially designed for use on large projects. Enforcing Tape--Bestwall Tape. ^nt Work--Apply Bestwall Joint System Compound, Mix Joint Compound or Bestwall Bedding ComUr,d to taper edge joints, end joints and nail heads. Shear off surplus leaving no material on high edges. Al low 12 hours drying before taping, leaving uniform depth of taper for uniform shrinkage of joint finishes over and under tapes. Apply Joint System Compound, Ready Mix Joint Com pound, 1-Day Wallboard Joint Compound or Bedding Compound, and embed tape leaving uniform thickness of material under tape. If Bestwall center taper Gypsum Wallboard is used on ceilings embed tape in center taper. When Joint System Compound, Bedding Compound or Ready Mix Joint Compound has dried completely, cover taped joint with Joint System Compound, Ready Mix or Topping Compound. (When 1-Day Wallboard Joint Com pound is used, the taped joint can be covered as soon as initial coat is set and before it is dry.) Shear off surplus leaving uniform coverage over tape with edges well feathered. When preceding coats are completely dry (where 1-Day is used it is only necessary for it to be hardened, not completely dry) cover joints second time with Joint Sys tem Compound, Ready Mix Joint Compound, or Topping Compound. Shear off surplus leaving smooth, well feath ered joint. For best results and more uniform suction, apply skim coat of Joint System Compound, Ready Mix Joint Com pound or Topping Compound over entire surface shear ing off excess material tightly. (See Joint Treatment Prod uct Sheet BW-62360.) Decorating--Gypsum Wallboard properly prepared can be decorated with any treatment ordinarily used for walls or ceilings. Surface shall be sealed with vinyl or pigmented varnish primer before decoration, including texture. Where skim coat has been used, a one coat paint appli cation may be satisfactory. Laminating Compound--Bestwall Laminating Compound is a casein base dry powder product requiring addition of water only. Add 25 lbs. of Laminating Compound to 4i/2 to 5 gal. of water. Consistency of the mixed materials should be such that when spread over gypsum board with a 12" serrated sheet metal blade having notches wide, y,," high, %" o.c,, it will not self-level. Ribbons of glue may be applied with serrated knife or mechanical glue spreader. Coverage is approximately 30 lbs. per one thousand sq. ft. glue line. (See Laminating Com pound Product Sheet BW-62355.) Bestwall Grabit--Grabit is an adhesive developed by Bestwall, which permits direct attachment of Gypsum Wallboard to interior masonry walls. It may be used on poured concrete, or block walls which are reasonably straight and true and are free from surface decoration or protrusions. The adhesive fills in all normal irregular ities in the masonry. In 3 to 4 hours Grabit sets hard, and joint taping and finish operations may then be started. s 3 SGP 0026569 BESTWALL GYPSUM WALLBOARD NOW WITH GREATER GLASS FIBER REINFORCEMENT THAN EVER BEFORE CORE WITFf GLASS FIBERS CORE WITHOUT GLASS FIBERS. GLASS FIBERS PROVIDE STRONGER CORES GLASS FIBERS PROVIDE GREATER RESISTANCE TO SHOCK I-. SALES OFFICES ATLANTA 801 Peachtree 25th n 1720 Peachtree Strel Atlanta, Georgia 30309 BRUNSWICK P. O. Box 137 Brunswick, G . 3ls CHICAGO 5544 W. St. Charles P. 0. Box 607 w Berkeley, Illinois 6OI62 CLEVELAND P. O. Box 845 Cleveland, Ohio 44122 DALLAS 600 Exchange Dallas 35, Te. k Bui'e* DETROIT 15800 W. McNichols Roaq Suite 227, Officenter Bldg. Detroit 35, Michigan HOUSTON P. O. Box 13397 Bayou Bldg., Allen Parian Houston, Texas 77019 KANSAS CITY 4233 Blue Ric^ ^oule Kansas City, Missouri 641 NEW ORLEANS P. O. Drawer 26278 Chef Menteur Station 7800 Aiamonaster Drive New Orleans, Louisiana 7CL SAN FRANCISCO 301 El Cerritc -:i El Cerrito, C 94537| WESTERN 119 W. 2nd South Salt Lake City, Utah S41C WILMINGTON Wilmington Marine Term"' P. O. Box 310 Wilmington, Delaware IS GLASS FIBERS PROVIDE GREATER IMPACT RESISTANCE BESTWALL GYPSUM WALLBOARD THE ORIGINAL WALLBOARD WITH GLASS FIBER REINFORCEMENT ;OOf GypS( ' 'TVTSiB* vr.i.jf". BESTWALL GYPSUM COMPANY P AO LI, PENNSYLVANIA^' G PRPo-Dj o C s f-r-p^ir f '7 MM 1-Day Wallboard Joint Compound Ready Mix Joint Compound Bestwall Reinforced with Glass Fibers 65' Triple Duty Wallboard Joint Compound Joint System Products Bestex A, B, and C