Document oDkrvZaqBq7E13ykNQyJm6pXr

guide to gypsum products for WALL SYSTEMS 1967 CATA1.0 G F BESTWALL gypsum division wallboard walls PLAINTIFF'S EXHIBIT GP-1498 G-P/BESTWALL Advantages of the lath and plaster wall systems For over half a century G-P/ Bestwall gypsum building ma terials have been accepted as a standard of quality every where. This recognition has and will continue to be earned through continued creative research which provides such unique advantages as glass fibre reinforced gypsum plas ter and laths. The choice between the lath and plaster systems and the wallboard systems of con struction rests with you the architect or construction engi neer. There are advantages to either method. Among the lath and plaster system ad vantages is the wide choice of lath materials available. An other is the versatility afford ed with the use of lath clips. Finally of course is the ex cellent selection of plasters available. The following fourteen pages deal with this system of con struction. For further infor mation and free consultation write directly to the G-P, Bestwall Gypsum Division, or consult nearest district office tinted on the back cover of this Catalog. Cover Phofograoh Mansion House Center St. Louis. Mo G-P/Bestwall lath and plaster construction is lightweight, easily handled and versatile. All of which makes it quite simple to install under almost any conditions. The fiber glass content of G-P/Bestwall Fibered Plas ters provides better keying on metal or gypsum lath. A bet ter surface is made for recep tion of the finish coat. Also, the plaster spreads freely and provides high coverage. When applied in accordance with specifications. G-P/Best wall plasters provide uni formly strong, stable walls. G-P/Bestwall sets evenly and uniformly to maximum hard ness and strength. Under nor mal conditions of service, the plaster will last for the life of the building. The textile glass filaments present in G-P/Bestwall laths and plasters weigh only 1/150 to 1/200 as much as most manila or sisal fibers, yet they are as strong as high strength steel of the same size. Gypsum products are incctr. bustibie. They will not bur: The water crvstallization both the lath and the plastr acts as an "automatic" sprit. kler system. I': ,r tr r;!' p Gypsum products have be.-.' used for fire protection hr L tween occupancies and oie structural building materia..- rfor years. Gypsum, in ~onv 1 form or other, has been ineluded in over 90% of the a.- ' semblies which have been fin tested at Underwriters Lab oratories. National Bureau k Standards and other te-tir.p facilities. SGP 0022679 For rated fire resistive construction use G-P/BestwiM gypsum products with C P Paneling. See "Georgie-Picifie Guide to Products for Interior Paneling p/bestwall . 7 :11:3 z i o n This system is designed f-.r those who prefer the conven tional finishes but desire mod ern speed and minimum ma terial. The specially designed Dens-Cote Base Plaster, stronger than conventional sanded plasters, mav be ap plied as thin as -:-j ' over Dens-Cote Base, to achieve the best results, as in the one coat system, the Dens-Cote Base Plaster can also he used over porous masonry block with excellent results. After the first coat of DensCote Base Plaster has set. finish with lime putty and gauging for a conventional smooth finish, or use anv sand float textured finish For a hard durable smooth finish, use Dens-Cote Smooth Finish. G-P/Bestwall laths and plastera.'although always consist ently a superior product, have one unique and important ad ditive which makes them very much in demand. This is the addition of uniform length, high strength glass filament fibers. The fiber glass content of G P/Bestwall fibered plas ters and laths is an important factor to consider in specifying lath and plaster construction. ave been tion beind over materials in some been in>f the asbeen fire ers Labiurau of J r testing! Literally miles of glass fibers 19.75 miles per bag of fibered plaster' offer greater resili-nce and bonding properties that resolve many job difficul ties. Glass fiber reinforcement provides greater speed in ap plication which in turn results in better economy. Durability in construction 'the fibers act as a reinforce ment within both the lath and plaster). And, not the least of importance, high quality plas tering because of the added plasticity of the plaster. G-P/Bestwall plasters, de signed for machine applica tion. give greater construction economies and added design possibilities. Glass fibered plaster may be used when fibered plaster is specified. Due to the plasticity and rich ness of these plasters they will not clog the mixer, hose or nozzle. Even the glass fibers go through. G-P/Bestwall Pinholath, be cause of its uniquely punc tured surface, provides an excellent base for a variety of machine applied plaster. Dens-Cote (One-Coat I Sys tem although Dens-Cote Smooth Finish i or Textured Finish) is designed to be used over Dens-Cote Gypsum Base, it works equally as well over porous masonry block. in this section Fire Resistance - Dens - Cote Firestop Gypsum Base may be applied to wood, metal or gypsum studs. L'p to 3-hour Fire Resistance assemblies are available. Easy to Decorate--Dens-Cote One Coat System receives any decoration. laths la Fast Erection-Finish today, decorate tomorrow. Dens-Cote System lone and two coat systems) is designed for use whenever a strong du rable finish with maximum speed and minimum material is desired. One application of only :is2" minimum thickness Dens-Cote Smooth Finish (or Textured Finish)a_over glass fiber reinforced uDens-Cote Gypsum base, is all that is needed to give lasting strength and beauty to any construc tion. For special construction specification details see Prod uct Sheet GP-66205. plasters special construction 1b 1c fire ratings Id SGP 0022680 GEOPOIA-PACIFIC/ BE9TWALL F/3 G-P/BESTWALL All G-P/Bestwall gypsum lath consists of a core of incom bustible gypsum rock rein forced with glass fibers sand wiched between two layers of special paper covering. Gypsum laths are designed scientifically to be the base upon which the proper plaster is applied. There are many different kinds of laths for different construction prob lems. G-P/Bestwall Plain Lath con sists of a core of gypsum rock reinforced with glass fibers sandwiched between two lay ers of special multi-layer pa per covering. G-P/Bestwall Pinolath, plain lath surface perforated with pinholes no larger than 'in" in diameter, spaced o.c. diagonally. G-P/Bestwall Dens-Cote'M Gypsum Base, tapered edge, with high suction pinholed surface for reception of thin coat plasters. G-P/Bestwall Long-Length Lath, T&G edges, special lengths up to 12'. G-P/Bestwall Perfolath, plain lath with 3/t" diameter holes spaced 4" o.c.. 48 holes per sheet. G-P/Bestwall Insulating Lath. Plain lath with aluminum foil laminated on the back. Glass fibered reinforced gyp sum rock between two layers of special multi-layer paper covering. The exposed layer is porous and absorbent, permitting water in the plaster to pene trate the surface. As plaster sets, gypsum crystals pierce the paper surface forming mechanical key on the lath thus assuring maximum bond. Plain Lath -- Economical Easy to apply Special paper provides proper suction Ties the framing members togeth er, increasing resistance to distortion resulting from warping, settling, wind pres sure and vibration Added strength and fire resistance due to reinforcement with glass fibers All G-P/Bestwall Gypsum Lath, having glass fibers, is Type X Printed face so identifies lath. Lath paper has water resis tant inner plies which prevent the water in the plaster from soaking through it and thus minimize sagging of the lath and plaster. The layer against the core is porous and absor bent so as to bond to the core as the plaster sets. This is the standard gypsum plaster base for nail, staple or clip application to wood or steel framing. A\ailable in 16" x 48". 3s or 12 ' thick l 161-," x 48" West Coast only) -Rounded edges. The same structure as PLAIN LATH except in dimensions, this construction material is especially designed for use as a plaster base for thin (2 I solid partitions providing fire resistive ratings up to two hours. Can also be used with furring over exterior masonry walls as a plaster base. Long-Length Lath--Provides for .all assemblies in floor to ceiling heights Ideal for solid plaster partitions Glass fiber reinforced for added strength Fast and economi cal to erect. Application: Both plain and Long-Length Lath may be ap plied by nailing to wood and nailing-tvpe steel framing, and to wood framing by sta ples. They can be easily at tached to metal sections and furring, and to wood with G-P/Bestwall Olsen Clips. Resilient type clips reduce cracking and lessen sound transmission. Long Length Lath comes in lengths up to 12'. providing for wall assemblies in floor to ceiling heights. Ideal for solid plaster partitions. Since there is less lathing in job--there is a saving in construction costs. Available in 'V' or 1" thicknesses-24" x floor to ceiling lengths (12' maximum I. G-P/Bcstwall P,.rf, plain lath with *4 ,' v holes spaced 4 ' cente-?' ter The perforator,, 1 the plaster to' push the holes and mu,},.' out the back of the lath / by forming a rnechanjr,. I'l 11>*` to :i4 ri'r This key plus the nau: bond to the face paper. : vides a double bond for y.i ter. a factor that increases: protection. '"i, n Application: Perfolath mao applied by nailing to wand nailing-type steel :tr ing. and to wood framing staples. It can be easily : tached to metal sections s: furring, and to wood w G-P/Bestwall Olsen C'..: Resilient type clips re.:, cracking and lessen sou: transmission. ^ As with all G-P/Bestwall La products. Perfolath is reforced with literally miles glass fibers for added strenr. and resilience. Perforaterequire applications of thickness of plaster and : quire separate scratch a: brown coats: Available in / x 48 '. 3s thick. Round edge SGP 0022681 F/4 For rated fire resistive construction use G-P/Bestwall gypsum procucts with G P Paneling See "Georgia-Pacific Guide to Products for Interior Pare1 rg r natura. ier. pro for plas ;ases fire "i may br to vvooc el fram ming bj asilv at ions anc od witr n Clip; reductn sound Designed primarily for appli cation to exterior walls and >np floor ceilings. When in- -talling the aluminum reflec- me surface must face a mini mum air space of to -ievelop reflective insulation value. Available in 16" x 48". 38" or thickness. Rounded edges. all Latr is rein miles o! strength 'orations of full and re tch and le in 16 id edges I G-P/Bestwall PINHOLATH is plain lath surface-perfo rated in manufacturing with pin holes no larger than 11.1 ' in diameter, spaced o.c. diagonally. Specially designed for ma chine applied plasters. This unique feature permits rapid suction of water from plaster mix to achieve perfe :t plaster consistency speeding plaster application. There are no plaster slide, no backtracking, no costly de lays. Plaster stays in place during rodding and darbving which can be done sooner when using PIN'HOLATH. Full base coat coverage is ob tainable in one operation. Available in 16" x 48": 16" x 96", 3/g" thick. < 161" x 48" West Coast only.) DENS-COTE BASE G-P/Bestwall Dens-Cote Gyp sum Base is a l2' thick. 4 wide, tapered edge, glass fiber reinfoced gypsum board prod uct. Specifically designed to receive Dens-Cote Plasters. r (Smooth Finish - Textured Finish --Base Plaster.) It has a highly absorbent lath type face paper with the sur face pin holed. Available in lengths up to 12'. is shipped twin mounted. Large sheets decrease number of joints, giving greater strength and crack resistance to wall and ceiling surfaces. The Dens-Cote System is de signed for fast erection and early occupancy: produces a wall with a strong, hard mon olithic finish. Combines economy of instal lation with virtually unlimited decorative possibilities. Available in 4' x 8 . 10 and 12'; V2" thick (3-8' and thick; or Firestop Core on order). G-P/BESTWALL OLSEN GYPSUM LATH CLIPS G-P/Bt-stwall Olsen G;. p.-um Lath Clips permit last erec tion of lath 0%er wood or steel framing. Olsen clips attach lath permanently and st-curelv to any framing, require less nailing and no wire tying. Their strength and flexibility allow slight mou-m.-nt of framing without cracking plaster, compensating lor ex pansion and contraction stresses. Clips also provide re silience in wall and in floor and ceiling constructions, re ducing sound transmission Simplified, efficient design designates their usage in a variety of wall and ceiling assemblages. THIN SOLID PARTITION H Clips reinforce external corner wherever gypsum lath is not supported by stddding and provide positive anchors for partition junctures. D Clips encage 'op edge of the long length lath at ceiling runners. G Clips stabilize t.-mporarv bracing bar that -upper's lath during plastering -.pt-ration C & E Clips attach 'lush edges of adjacent !j;h panels. RESILIENT WALL CONSTRUCTION RX Clips attach jji-um iatn to wood framing hv means of resilient springs in '.he wire clips and nailed to fram ing. K Clips 1 Resilient are -tartmg clips used at d-- : a-e of a wall. C Clips 1 Resilient ar- nailed to woorl tram;:;. -:.i-:r.hers These clips float 't * .nth free from structure 1, .- o ..be less sound tran-mio,',;! RESILIENT W \LL CONSTRICTION Purr-Field Clips c 1. n sum lath to IS :u 0 ' gv p- Rest Clips jre ions to the Purr ' . taching pemii metal studs mpant-r at hollow- Rez Clips ar- .-ently suspend _ away from r.' -h- a channels r studs. r---ih- .m lath u -tubs, i w 1 re SGP 0022682 GEORGIA-PACIFIC/BESTWALl r/D BASE COAT PLASTERS for hand or machine application G-P/BESTWALL AJeat T/vin Wood Fiber gypsum piasters The G-P/Bestwall Gypsum Division manufactures a com plete line of highly efficient gypsum base coat and high purity finish plasters. These plasters provide a wide lati tude of selection to meet all architectural requirements. Years of research and field use have demonstrated that glass fibered plaster is one of the most versatile plasters ever developed. This ad vanced improvement in fiber ed plasters controls the even ness of the scratch coat to produce good bond, thus as suring speedier and easier in stallation. Reinforced gypsum plasters provide excellent strength and durability by setting evenly and uniformly to maximum hardness and strength. Plas ter adds mass to masonryunits thus providing increas ed sound reduction and. these plasters are fireproof: gypsum cannot burn and will not transfer heat in excess of 212 F. until all its water of crys tallization has been driven off in the form of steam. Plasters are divided into two categories; Base coat and Fin ishing plaster. Base coats form that portion of the plas ter construction which is ap plied to lath bases and which help support and develop the properties of the finish coat. Finish coat plasters provide the last plaster operation be fore decorating. Various fin ishes are available, depending on the type of texture or deco rative effect desired. Neat gypsum plasters are ob tainable in three forms: Unfibered. Fibered and Extra Fibered. Neat Gypsum plas ters require addition of aggre gate and water in the field. 1. Unfibered plaster is used for scratch coat on solid sur faces and for the brown (sec ond) coat on any backing. 2. Fibered plaster is recom mended to provide greater wet cohesion and to minimize droppings with open type lath. 3. Extra fibered plaster is used for greater wet cohesion over metal lath as may be spe^ cified. Applied according to specifi cations. G-P/Bestwall Basecoat plasters provide uni formly strong.stable walls and ceilings. Special, scientifically con trolled process maintains plasticity and easy workabil ity. The incombustibility of gyp sum offers superior fire pro tection in hundreds of con structions over wood or steel frame, in walls and partitions and in floor and ceiling con struction and for beams and columns. A plaster designed for hand or machine application (avail able on the West Coast only). A specially controlled process gives Twin Plaster easy work ability for fast, uniform cov erage. In machine applica tion. it prevents clogging in the nozzle and plugging in the hose. It is used with equal facility for hand application. Twin Plaster is available glass fibered or unfibered to meet every job condition. Speedy Application--Machine plastering speeds construction time and lowers production costs. It eliminates mixing set-up at intermediate floors and dependence upon general contractors for hoisting facili ties. Economy - Machine applica tion. using gypsum lath and plasters developed for this purpose by Georgia-Pacific. Bestwall Gypsum Division, offers maximum coverage per man with minimum waste. Durability--When mixed and applied according to specifica tions, resultant plastering de velops full strength and hard ness resulting in strong, du rable walls pnd ceilings. Design Flexibility.-- Machine application lends itself to the flexibility of design for which gypsum plaster is noted, thus placing no limitation on use of this method of application. Non-staining fiber additive pr/'V > working propertll.'.'''!w ` Without aggregate' '*h`- I-'1 ip1' H l* Intended for use without . gregate as scratch and bn coat, but may be mixed s one part of sand. For seracoat over high suction mat rv it is recommended that part of sand be used. 'v "r y j/ Economy-Can be app:.- '' quickly and easily. Strength - G-P/Best*; f" Wood Fibered Gypsum ter has approximately 3 t:m greater strength than sam plaster: up to 2l> tirr.- greater resistance to 1 at- impact and 50% greater face hardness. 1. Fire-Resistant-Wood FiberPlaster provides excellent S' rating up to 50% higher thsanded plaster. I SGP 0022683 F/6 For rated tire resistive construction use G-P/Bestwall gypsum products with G-P Paneling. Sea ''Georgia-Pacific Guida to Products for Interior Pa^e' rg T 'Iprl l<Jps " 'hpn * ,nereis Sase l ('jf tletitznwi to . n-rruJKt`ntt\- uifh mono- . i fHTrfe Rrquires uiltii!' >r> rie/rf. , formulated to comfor - pruulemsi :a- (1: < A base coat plaster that is 50% lighter than gypsum and sand plaster. Available either Fibered, Unfibered or Mason ry Mix. Fibered Lite-Mix contains glass fibers to pro vide added strength and uni QUICK SELECTOR CHART NAME USES COVERAGE THICKNESS (jq. yds per ion) NEAT Unfibered Fibered Extra Fibered Scratch coat on solid surfaces. Brown coat on any surface. Scratch and brown coat on all surfaces except monlithic concrete. Scratch coat on metal lath but may be used over all bases except monolithic concrete. (sanded 2:1) Gypsum Lath: 190-220 Metal Lath: 100-130 Gypsum Tile. 210-240 Clay Tue. 165-200 (same as above) 4' 4' 'V 4" S' (same as aoove) (same as above) (same as above) LITE-MIX Unfibered, Fibered Masonry Mix Where lightness is desired, lor faster, easier application. For use over high suction masonry base. Gypsum Lath: 135-150 Metal Lath: 75-90 Gypsum file: 135-i50 Clay Tile: 110-125 S' 4' S' WOOD FIBERED Without sand-scratch coat and brown coat on all backings except masonry. With sand-scratch coat on masonry and brown coat on all backings. (without sand) Gypsum Lath: 100-120 Metal Lath: 50-65 Gypsum Tile * 85-100 CJay Tile: 65-85 s* V -1 * S' CONCRETE BOND Double back coat on monlithic concrete or as scratch coat only. Monlithic Concrete: 90-120 4' maximum I hnut as id brimr xed ivur r scratch a mason that on- applies estwali im Plas 3 timet sandec > 11 m e > lateral ater sur ! A surface too dense for rilinary plaster to form a n.vhanical key. and J The difference in thermal vpansion of concrete and niinary plasters. Bonding Strength - Concrete B"nd adheres well to properly prepared concrete surfaces, .lumns and beams and on -mouth cement block walls. f-ow Cost-An economical l3*TM31 Poster to provide :c! aPPl>cation direct to concrete Effaces. Fibered I lent fire tier than form thickness with fewer droppings. Requires addition of water only in field. 1. Unfibered Lite-Mix Plaster is used for scratch coat on solid surfaces and for the brown (second) coat on anybacking. 2. Fibered Lite-Mix Plaster is recommended to provide greater wet cohesion and to minimize droppings with open type lath. 3. Masonry Mix available for application on masonry bases. Fire-Resistant -- Perlite aggre gate provides higher fire re sistance than sanded plasters. Mixes smoothly --Has no ten dency to block the nozzle of the plaster gun. High Insulation Value-LiteMix provides greater insula tion than sanded gypsum plaster. I SATIN SPAR GAUGING (White) G-P/BESTWALL GAUGING PREPARED TROWEL FINISH PREPARED SAND FLOAT FINISH KEENE'S CEMENT MOLDING DENS-COTE SMOOTH FINISH DENS-COTE TEXTURE FINISH DENS-COTE BASE PLASTER FINISHING LIME SMOOTH FINISHING (Normal Hydrated) BUILDERS (Autoclaved) Mixed with lime for use over gypsum basecoat. Great workability, hard, smooth white surface. Available in quick set or siow set. 1600 V (3.1) Mixed 3 parts lime putty to 1 part gauging (Min.) Mixed with lime tor use over gypsum basecoat. Selected quality rock, light gray cotor. Gives hard, smooth surface. Available in quick or stow set. 1600 S' (3:1) Mixed 3 parts lime putty to 1 part gaugung (Mm.) Where uniformity and extra haraness are desired. Can be decorated when dry- no waiting period. For use over gypsum basecoat only. White or gray color. Mixed with water only. 350-400 Same as prepared trowel finish except surface wilt be textured. White or gray color. 250-275 Mixed with lime. Gives strong, dense surface with resistance to abrasion and water. Two sets regular and fast finish. (41 Mix) 550 S' Made from rock over 98% pure. Gives hard, strong molds and coats with low expansion. Mixed with lime and water for ornamental features. Mned with water only, for thin coat application to Dens-Cole Gypsum Base. SGP 002268^ Up to 400 3,u * Minimum Same application as Smooth Finish. Mill mixed texture material, texture with float as desired. Up 10 400 Minimum first coat m two coat thin plaster system. Finish may Up to 400 1 u* Minimum be Smooth Finish or Lime Putty mixed with gauging. Dens-Cote Smooth or Textured finish may be applied to masonry Block in two coat application. Base coat minimum tfuc-iess of S' ot enough to straighten wail. Finish coat may be smooth or textured as desired. (Ohio Dolomite) Mixed with gauging, molding plaster or Keene's Cement to give plasticity, whiteness and bulk. Up to 750 qeorgia-pacirc/bestwall F/7 Gypsum plasters cont'd. FINISHING PLASTERS Specially ground gypsum fin ishing piasters designed to be blended with lime putty. They provide the base for final wall or ceiling decora tion. ` Very white plasters made from selected gypsum rock of exceptionally high purity. Specially ground and process ed to provide hard strong molds and casts. A pre-mixed gypsum finish coat plaster requiring addi tion of water only Made from high grade gypsum rock ot white or local gray A high strength, h-,,, . white gypsum pla<v.' vides Stronger, harU(7 when substituted |,,r' plaster in a lime gau -.7 pen F?:v r lvf:~ th-1' in ' Usually applied over a gyp sum basecoat and to a thick ness of i|t," to `a Available in "Slow Set" and "Quick Set." White Coat Finish - Gauging sets to provide a hard, strong, smooth white coat finish, over gypsum basecoat Plasticity -- Lime is used to furnish whiteness, plasticity and bulk. L. Satin Spar Gauging Plas ters are very white and when properly mixed with lime put ty they provide a glossysmooth. flawless surface of uniformly excellent, satin-like finish. 2. G-P/Bestwall Gauging Plasters made of local rock are recommended for use where a high white finish is not necessary. They furnish the same high quality surface as Satin Spar. Excellent for run work and ornamental features. 1. Sunflower Molding Plasters are very white and are ground exceedingly fine. They are specially processed to make pure white molds, free from voids and pinholes. 2. G-P/Bestwall Molding Plasters made of local rock are recommended for use where a high white work is not necessary. They furnish the same high quality surface as Sunflower. Strength--produces very hard surfaces, approximately twice the strength of ordinary limegauging finishes. Easy Decoration -- can be decorated as soon as dry The lower the lime cnr-the harder the finish A.2 able Regular and Fast sei Resistance to Abrasion - - vides high resistance to arsion making it suitable for-. in bathrooms, kitchens, h pitals. etc. It -t th t -. [. t .- P Low Water Absorption cause of high densitx . has 1 water absorption. rt L ;> Various Finishes-- Keen-- -f ment when mixed with I;rfent proportions of lime ini'. provides "standard har: "medium hard" and e\".: hard" finishes L 7 j, I", j I SGP 0022685 F/8 For rated fire resistive construction use G-P/Bestwall gypsum products with G-P Paneling. See "Gtorgia-Pacific Guide to Products for Interior Pinenng COTE >Urfa,; n~ hi,; <-0te smooth Finish is ; vnidesigned plaster ' `7,-plied to a minimum n-1' ' over Dens-k ote Base 1 `mgle coat (scratch and "uble >*P'- conteni . Avaii t set. in -- pro to ahra e for us* ns. hw on -- hr has low sne's Ce n differ ne putt;. hard. I "extrs It provides a wail with a strong, hard monolithic finish that can receive virtually any type of decoration. With Dens-Cote Smooth Finish no segregate or special machin ery is needed. Part of the Dens-Cote System of construction this product mav be applied to walls and ceilings over wood or metal framing, it helps to effectively reduce sound passage from room to room. Designed for fast erection and early occu pancy. Dens-Cote Texture Finish is a mill mixed plaster that is applied to a minimum of 'ac over Dens-Cote Base in a single coat (scratch and dou ble up) and finished with a wood float or other device to the desired textured finish. DENS-COTE " The application of approxi mately i j of Dens-Cote Base Plaster over glass fiber rein forced Dens-Cote Base with an additional finish coat pro duces monolithic finish that will last a "house time.'' Designed for fast erection in either residential or commer cial construction. Designed for use with conventional finishes. Use 'i1;' wide fiber mesh to reinforce all flat joints and angles. Use 1 ' x U perforated metal beads for corners. Cor ner beads should be set to regulate plaster thickness at 1 j" maximum. Nail or screw corner bead to framing mem ber. For best results, apply the mesh by embedding it with Dens-Cote Base Plaster. This is accomplished by troweling a layer of Dens-Cote Base Plaster over the joint area and pressing the glass fiber mesh into the Dens-Cote with a trowel. The mesh may be first stapled to the Dens-Cote Base, if desired. In any case, the mesh must be embedded with Dens-Cote before the over all application begins. At the same time, fill all metal corner beads. These areas may be allowed to set before the over-all application is commenced. This preliminary embedding of the joints keeps the glass fiber mesh from wrinkling, promotes uniform takeup. and assures positive keying of Dens-Cote Base Plaster into the mesh. Trowel the Dens-Cote Base Plaster tightly over the entire wall or ceiling surface. This application should be uniform -about Vs" thick. As soon as Dens-Cote Base Plaster has taken up suffi ciently. straighten wall but do not trowel smooth. Leave rough so that finish coat will key properly. Apply finish coat as soon as possible after base coat has set. Finish with lime putty and gauging for a conventional smooth finish, or use any sand float or textured finish. If a hard durable finish is de sired. use Dens-Cote Smooth Finish. Finishing Limes Lime refers to a \ariety of products made from limestone G-P/Bestwall lime is consistently good because. There i- .i minimum of impurities in the lime: burning is complete .- t not at too high a temperature and. finally, all oii-r ami under lumps are picked out as they come from the kiln G-P/B.-stwall Finishing Limes are composed of gydroxides which pn-e-nt metal lath and nails from rusting. Precision ground to pro luce the correct fineness for maximum plasticity and workability they supply a white durable finish that preserves and beautifies interior walls and ceilings. A normal hydrated lime that must be soaked appru\imatrlv 16 hours and then blended in proper proportions mne gallon of gauging plaster to every three gallons of lime putty with gypsum gauging plaster which provides initial set and strength avoiding shrinking cracks. This finishing lime is made from the same quicklime as G-P/ Bestwall Smooth Finishing Lime, but is hydrated in a steel Autoclave (pressure vessel l. Water is injected and after the quicklime satisfies its chemical thirst for water, the lime is re moved from the Autoclave chamber as dry hydrate and under goes aeration to remove any possible uncombined moisture This lime has less than 8% of unhydrated oxides and prevents "lime pops." Builders Lime need only be mixed with water to a putty consistency and can be used without soaking G-P/ Bestwall Builders Lime has more workability and plasticity than other finishing lime. Masonry Limes This is normal hydrated lime made from quicklime and-except for its coarser quality and shorter aeration process-the manu facture. hydration and milling are approximately the same as for G-P/Bestwall Finishing Limes. G-P/Bestwall Mason's Lime should be soaked at least 12 hours in putty form before use :n mortar ... it should not be used as finishing plaster because the finish will not be up to standard and "pops" may .xcur. This is the original Type "S" Special hydrated lime, a quick mix lime that need not be soaked in putty form before use Produced by a continuous pressure on Autoclave system G-P/ Bestwall Speedy Mason's Lime differs from Bestwall Auto claved Finishing Lime only in the coarser quality of the quick lime used. Efflorescence is minimized because the lime is tree of soluble salts. SGP 0022686 GEORGIA-PACIFIC / BESTWALL F/9 G-P/BESTWALL Gypsum lath WOOD and STEEL & plaster STUD PARTITIONS partition systems & column . Jjod fireproofing THIN SOLID PARTITION S Thin Solid Partitions consist of (1) i/j or 1" long length psum lath (I'j T&G edges and I T&G or shiplapped edge) plus two coats of Neat Base Coat Plaster (sanded or perlited) both sides to a thick ness of up to 2" thick and fin ished with a lime puttv coat of G-P/Bestwall Finishing Lime mixed with G-P/Best wall Gauging, or (2) metal lath on 3/4 cold rolled chan nels plastered on both sides as over gypsum lath. Refer AIA File No. 2-B-l --Metal Lath specifications for Metal Lath ing and Furring. A 2 Solid Partition is a non loadbearing (non-supporting) unit composed of G-P/Bestwali Long-Length Gvpsum Lath three-coated out on both sides to a total of 2" thickness. No studding is required The lath is inserted into floor and ceiling runners and is tempo rarily braced during the plastering operation. 1" core lath eliminates need for bracing during plastering. 2" Solid Partitions make economical floor area dividers and render more usable space than hol low or tile partitions. In the construction of Thin Gypsum Lath Partitions 25 gauge metal floor and ceiling runners are firmly secured and the gvpsum long length lath are positioned and fas tened with various Olsen wire clips. H Clips reinforce external corners wherever gvpsum lath is not supported by studding and provide positive anchors for partition junctures D Clips engage top edge of the long length lath at ceiling runners. G Clips stabilize temporary bracing channels that supports lath during plastering operation. G-P/Bestwall Olsen Gypsum Lath Clips provide easier faster erection and eliminate ti'ing Tested under A S l M. Standards. 2" Solid Par titions of lath and sanded plaster qualify for 1-Hour fire rating. For higher fire ratings consult Technical Data-Lath and Plaster Construction on page F/ll. V r l/t" thickness of Plain. Pinholath or Perfolath in sizes 16" x 48"-96" may be fastened to wood studs spaced 16" O.C.-24" O.C. with nails, screws or staples. Sanded. Perlited G-P/Bestwall Neat Base Coat Plasters are applied in two coats, both sides of the assembly to the required thickness to conform to the various fire resistive ratings finished with G-P/Bestwall Smooth Finish or Builders Lime. Gypsum Lath may be at tached to metal or wood fram ing with various types of Olsen Clips that hold the gypsum in suspension from the framing. This type application may have the same fire resistive ratings as gypsum lath direct ly attached to wood framing with nails, staples or screws. Sound characteristics of re silient wall construction pro vide higher Sound Transmis sion Class Ratings. Resilient wall construction re quires the use of Olsen Clips RSF Clips (resilient) Starting and finishing clip used at the base of a wall. C Clips ( resili ent) Nailed to wood framing members. RX Clips Attach gypsum lath to wood framing by means of resilient wire clips and nailed to the wood framing. These clips float the gypsum lath free from wood framing to provide greater re siliency and less sound trans mission. Purr/Field Clips--attach gyp sum lath to pencil rods. BC Starter / Finisher Clip drives under all types of track and fastens gypsum lath firmly against pencil rod stud. C Clip Attaches gypsum lath to pen cil rod stud. HOLLOW STEEL STUD PARTITIONS Hollow Steel Stud Partitions consist of gypsum lath and plaster over steel studding. These partitions may be load bearing or non-loadbearing depending on studding used. For thick partitions providing for piping and better sound values the 2 sides can be sepa rated using studs on each side. BCR --Resilient Starter/Fin isher Clip -- Drives under all types of metal track and maintains resilience of start ing and finishing courses of gypsum lath. REZ-L'sed to resilientlv suspend gypsum lath away from hollow metal studs, channels, or welded wire studs. Olsen Clips with Steel Studs. Attach 3,s ' thick gypsum lath to Steel Stud (sizes 15/g". 3". and 3V). BC Starter Clip driven under the various size floor runners. C Bridge Clip attaches end joints of gypsum lath. JX-DW Clip attaches gypsum lath to box steel stud. Resilient attachment of 3's" gypsum lath with Olsen RXDW Clip to Box Steel Stud. BCR Starter Clip drives un der the various floor runners and holds gypsum lath in suspension from box stud. C Bridge Clip attaches end joints of gypsum lath. RX-DW Field Clip attaches and holds gypsum lath in suspension from box steel stud. These clips require no screw guns or special equipment to attach 38" gypsum lath. G-P/Bestwall Gypsum Lath is secured to the studs by use of transverse clips or other spe cial clips and techniques. These partitions are particu larly adaptable where pipes are to be concealed. Weight of Hollow Steel Stud Partitions is determined in pounds per square foot and will range from 10 lbs. to 15 lbs. depending upon aggre gate used and thickness. A 1-Hour fire rating is obtained when G-P/Bestwall Perfolath and a plaster is used. Mix is 1 part plaster to 2 parts lightweight aggregate or sand. Non-Loadbearing Lath and Plaster Assemblies will not resist stresses imposed by structural movement. It is recommended such construc tion be isolated from struc tural elements of the building by control joints. COLUMN FIRE PROOPi^p Fireproofing of the columns is accon-,-; ,f'. abutting 38 G p Perfolath around ' imeter of the beam .. ' and plastering to ih.-i,. quired for desired ance rating The Perfolath is Me. ^ . double strands of around the lath an-. 16" o.c. Cornerbeati; bv staples or tie win -.V ground for proper th':-,^ as well as straight ` ners. Sanded pia-ter u.-ed ratines up n. three r. Lightweight aggregates Mile fire rating- up to 4 rv . A 4 h"ur 1 i .mn rating quires twi. ,.i'. .-r< of i , -- gypsum lam SGP 0022687 F/10 For re ted fire resistive construction use GP 'Sestwall gypsum products with GP Paneling. See "Georgia-Pacific Guide to Products for Inter c' 3rns a C0W. u".i.,ri' sPa<v. aPpli<... Prov,,i ''ckru." Ue Cr,r I I 1 i i for firf hou rs s pro hours ng rethick , i Technical Data, Fire Ratings and Sound Transmission Values for Gypsum Lath and Plaster Wall Systems CONSTRUCTION PARTITIONS Descnotion Thickness r * 4* wood 5V 5V 5V 5V|* 5 >i- 5V 5V 5'/,' 5V 5'-.' 5V 5 Vi* 4V* 6' PLASTER TYPE BASE MIX 1 part of Gypsum Plaster (100 pounds) to cu. ft. aggregate THICKNESS Face of Lath to Face of Finished Surface (2 Mnes--Scratcn and Brown) (1 Mix--Scratch Oouble-Up) 3i* Bestwaii Pmholath J't' Bestwall Pmnoiath Vi* Bestwall Plain Gypsum Lath 4* Bestwall Plain Gypsum Lath 4* Plan Gypsum Lath 4* P'ain Gypsum Lath J/i* Penorated Gypsum 4" Perforated Gypsum Metal Lath Metal Lath Metal Lath Metal Lath One layer 4" Bestwall Firestop Dens-Cote pase both sides Two layers 4* Bestwall Firestop Dens-Cote Dase. both sides. Gypsum-Sand l 2 Gvpsum-Perute 1 2 Gypsum-Sand 1:2 Gypsum-Perlite 1.2 Gypsum-Sand 1:2. 1 2 Gypsum-Wood Fiber Gvpsum-Sand 1:2. 1 2 Gypsum-Penite 1:2, 1.2 Gypsum-Sand 12. 1:3 Gypsum-Wood Fiber Gypsum-Perlite 1.2. 1.2 Gypsum-Vermicuhte 1 2. 1:2 Dens-Cote smooth finish Dens-Cote smooth finish V? * 4* V v v v v V v v v 4* w w FIRE RATING WEIGHT LBS PER SQ. FT. 1 Hour 1 Hour l Hour 1 hour 45 Minutes 1 Hour 1 Hour l-/j Hours 1 Hour 2 Hours 1 Hour 1 Hour 1 Hour 15 12 15 12 U.7 -- -- -- --- -- -- -- 7.7 2 Hours 13.8 _35 to 45 35 to 45 -- 35 to 35 -- -- -- -- -- -- -- 35-36 39-41 Solid Partitions 2* 4* Long Length Gypsum Lath 2* 4* Long Length Gypsum Lath 2* 4* Long Length Gypsum Lath 2* 4* Long Length Gypsum Lath 2# Metal Lath 14* Metal Lath zvr Metal Lath 24* Metal Lath Gypsum-Sand l.l. 1:2 Gypsum-Perlite 1:2 Gypsum-Perlite 1:2. 1:2 Gypsum-Vermicuhte 12, 1:2 Gypsum-Sand 1:2, 1.2 Gypsum-Perlite 1.2 Gypsum-Perlite 12, 1 2 Gypsum-Vermicuhte 1.2. 1:2 54* 4* Bestwall Pmholath 54* 4* Bestwall Pmholath ' to 54* 4" Plain Gypsum Lath * to 54' 4* Bestwall Pmnoiath nailed to each side of 24* steel stud. ' to 54* 3'Pertorated Gypsum Lath 54 * Metai Lath 4 Vi * 4* Bestwall Gypsum Lath-Type "X*' attach with dips each side of 24 " steel stud. 4* Vi* Perforated Gyosum Lath 3l/i.* One layer 4* Bestwall Firestop Oens-Cote base, both sides. I5''** metai stud 44* Two layers Vi* Bestwall Fnestop Dens-Cote Base. Both sides-- 24' metal stud 6Vii* Two Layers 4' Bestwall Firestop Oens-Cote Gypsum Base, Both Sides 34' metal stud Gypsum-Sand l 2 Gypsum-Perlite 1 2 Gyosum-PeMite 1 2 Gypsum-Sand 1.2 Gypsum-Sand 1:2. 1:2 Gypsum-Sand 1:2, 1 3 Gypsum-Sand 1:2 Gypsum-Perlite 1.2. 1.2 Dens-Cote Smooth Finish Dens-Cote Smooth Finish Dens-Cote Smooth Finish H- 1 Hour 16.5 Ji 14 Hours -- n' 2 Houis 10.9 H' 2 Hours -- r 1 Hour 18.1 H* 1 Hour 74 in 2 Hours -- i'/.- 2 Hours -- 38 -- 37 -- 38 33 -- -- Vi* 1 Hour 14 V 1 Hour 10 _-- v 1 Hour 16 30 vr 1 Hour 16 to 21 -J" 1 Hour to ," l Hour 21 /r 1 Hour 11.8 to 41 45 * 2 Hours 15 Vh * 1 Hour 7.0 38-40 '/u* 2 Hours 98 48-50 2 Hours 12 a 45 COLUMNS Columns (Steel) 4' Perforated Gypsum Lath Vi' Perforated Gypsum Lath Vi* Perforated Gypsum Lath Vi' Perforated Gypsum Lath 2' Layers Vi* Plain Gypsum Lath Metal Lath Metai Lath Gypsum-Sand 1:24 Gypsum-Sand 1:2, 1.3 Gypsum-Perlite 1:2 4 Gypsum Perlite 1:2. 1:3 Gypsum-Perlite 1:2. 1.3 Gypsum-Sand 1:2, 1:3 Gyosum-Perlite 1:2. 1 3 Vi- l Hour _ IV.' 2 Hours -- 1- 2 Hours -- --1 Vi - 3 Hours -- 14* 1 Hour --1 Hour -- IVi* 4 Hours _-- -- -- -- -- -- NOTE: This table is a summary only, based on tests at Underwriters' Laboratories. National Bureau of Standards. University of California. Ohio State University, Geiger and Hamme, Riverbank Laboratories and/or Ohio Researcn corporation sponsored by the Bestwall Gypsum Division, Gypsum Association. Metal Lath Association, Perlite Institute. Vermicuhte Institute or others Tne fire rating, weight and sound characteristics are based on a combination of specific details as tested and published. More Complete Listings and Details Are Available. 1. 9 Frequency Average is the average decibel loss using nine of the eleven frequencies 125 to 4000 CPS range (Minus-1400 and 2800 Frq.) WARRANTY: The assemblies covered above have been developed with due regard to practical construction methods. However, since the Bestwall Gypsum Division does not have any prior knowledge of a specific building design and its construction or the methods of application used with their products, no warranty of performance is made. All of the test results have been obtained under laboratory testing conditions where controlled environment reduces variables to a minimum. In the field, such laboratory conditions are not always met, since other variables are introduced. Laboratory results may exceed results of field tests, but the laboratory tests under controlled conditions are the only logical way to compare the performance of different assemblies. The Bestwall Gypsum Division of the Georgia-Pacific Corporation makes no warranty tnat the performance of assemblies in the field will have a performance equal to or better than that developed in the test. SGP 0022688 GEORGIA-PACIFIC/ BESTWALL F/l 1 1 G-P/BESTWALL Lath & Plaster Specifications Specifications for Interior Gypsum Plastering 1. Materials A. Gypsum Lath shall conform to the current Standard Speci fications for Gypsum Lath. ASTM Designation: C37 Gyp sum lath shall he one of the following types: Plain. Per forated. Pinholath or Insul ating. All gypsum lath shall be as manufactured by G-P/Bestwall Gypsum Division and shall conform to the following dimensional requirements: Thickness, %" or Vi" or 1". Width, 16 ' (a) or 24". Length, 48" (b). (a) 16'i," wide lath is available in Pacific Coast Markets. (b) Long length lath l/i" or 1" thick, is available for special systems such as solid gypsum lath and plaster partitions and furred walls. B. Gypsum Lath Clips shall be G-P/Bestwall Olsen Gyp sum Lath furnished by G-P. Bestwall Gypsum Division. C. Other Metal Accessories such as corner beads, base screeds, concealed picture molds, etc., shall be not lighter than No. 26 U. S. gage steel, zinc coated, with perforated or or expanded flanges or clips shaped so as to permit com plete embedment in the plas ter. D. Channels shall be hot-roll ed or cold-rolled steel, free of rust, with required weight per thousand lineal feet. 2. Application of gypsum lath A. Except where noted below G-P/Bestwall Gypsum Lath shall be securely nailed to wood supports spaced not to exceed 16" on center (24" on center for Vi" lath) with 13 gage lVi" long (ll4" long for Vi" lath). l9,*' flat head, blued nails approximately 5" o.c. The nails shall be driven with the underside of the head' flush with face of the lath and shall not be closer than 3g" from edges or ends. There shall be not less than four nails per lath per support with 16" wide lath. Where 24" wide lath is applied, there shall be at least 5 nails per lath per support, approximaately 5" on center. B. Where 34" Gypsum Lath is used for certain fire resistive rated construction, five 13 gage. 11 a long, 38" flat head, blued nails per lath per sup port for 16" wide lath may be required. C. H" G-P/Bestwall Gypsum Lath may be applied" with staples to wood nailing mem bers by means of a pneumatic tool. Staples shall be not less than 16 gauge flattened gal vanized wire, "n," flat crown, divergent point, not less than :8 ' long. Staples shall be driven with the crown parallel to the long dimension of the nailing member, using not less than 4 staples per 16" width of lath per nailing mem ber and not more than 5" o.c.. in such a manner that the crown bears tightly against the lath but does not cut into the face paper. The legs of the staples shall not be closer than 3,g" from the ends and edges of the lath. D. G-P/Bestwall Gypsum Lath shall be applied with its face side out and with the long dimension at right angles to the framing members. End joints shall be made to fall on different supports in alternate courses, or the lath shall be applied so that end joints are made continuously on one support in the latter case, the continuous joints shall be covered with 3" wide strips of metal lath and the long or edge joints shall be offset or staggered. In all cases, the lath shall be butted together. E. Corner bead shall be used over lath to protect all exter nal vertical corners and to establish grounds, and shall be attached securely in such a manner as to assure proper alignment during application of plaster. F. Comerite shall be provided at all interior angles and shall be nailed lightly or stapled to the lath, not to the framing members. G. Where G-P/Bestwall Olsen Gypsum Lath Clips are used in the erection of lath and shall be in accordance with the directions and details shown in the various con structions. 3. Metal lath and metal furring Shall be in accordance with ASA Standard Specifications for Interior Lathing and Fur ring No. A42.4 (latest current version). 4. Workmanship All metal construction and lathing shall be erect so that finished plaster surfaces may be true to line, and be level, plumb, square, curved or as otherwise required, without excessive thickness of plaster. These specifications follow and incorporate portions of the American Standards As sociation's Standard Specifi cation for Gypsum Plastering A42.1-1965 but is revised in format and organization to conform to the current recom mendations of the G-P. Bestwall Gypsum Division. Specifications for Interior Lathing 1. A. Extent of Work: All plas tering shall be done in accord ance with the procedure as herein specified. This specifi cation includes all labor, ma terials. services, equipment and scaffolding necessary to complete the project in ac cordance with the drawings and specifications. B. Work Not Included: The following items are not in tended to be part of these recommendations. 1. Spray on fireproofing. 2. Spray applied decorative finishes. 3. Wood furring and wood grounds. C. General Requirements 1. A uniform temperature of not less than 55; F. shall be maintained in the building for a period of seven days prior to the application of the plaster, during the plastering opera tion and after plastering, as required, until the plaster is dry. When temporary heat is required, proper measures shall be taken to insure that the heat is evenly distributed into all plaster areas. Deflec tion or protective screens shall be used to prevent concen trated or uneven distribution of heat on plaster areas near the heat source. 2. Ventilation shall be pro vided for drying the plaster during and after the applica tion. 3. Where lath and plaster ceil ings are located under roof constructions, the space thus enclosed either with or with out a vapor barr insulation, shall ently ventilated ln _ r, with accepted practice The .spaCt':` ceiling shall he ,^nt A * the ratio of the total"1 ventilating area A of the ceiling shall L' than 1/150. vents shall ventilation. Locate provide11 l,l * 4 4. Areas, such as ho dows. etc., shall he closed in to prevent *4 5. Scaffolding shall vt structed and mair,;a nJ* strict conformity lh`" cable laws and ordinar.r^ in such a manner as 7^ interfere with or ohqrL.'1' work of others "'t r * I ( 6. The work shall be prr coordinated with the' other trades. *' 7. All products shall y t livered in their original -J ages, containers or huna'.*J 8. The plaster and all -.u cementitious materials .2 be kept dry until reac. ? use and shall he kept ground, under cover anr. from damp walls or surh^ 2.Materials I A. Plastering Materials The plaster materials be selected from the < .- ing categories and hrantt i manufactured by G-P B- wall Gypsum Division u conforming to the cu-r-j ASTM specification.; noted: 3 P, BESTWALL Gypsum Plaster G-P 'BESTWALL Lite W ( G-P BESTWALL Wood F-bered G P-'BESTWALL Concrete Bora 3 aste* G P/BESTWALL Pteoareo Trowel Fimsh G P BESTWALL Preoared Sand Fisa: F'n-sh G-P BESTWALL Satin Soar White Gaug.ng Piaster G P BES'WALL Gauging Piaster G P, BESTWALL Sunflower Wo-5 ng and Casting Piaster G-P'BESTWALL Keene's Cement G-P BESTWALL 3uiider s Lime -Autociaved F-msn - ZZ'.i ' G P BESTWALL Smooth F-n-sftng ,, * Normal Hyarateo; Co SGP 0022689 F/12 For rated fire resistive construction use G-P/Bestwall gypsum products with G-P Paneling See ' `Georgia-Pacific Guida to Products for Interior Panet.ng r ications (cont'd.J ,c>fi 5P1 and Perrr,an r'*'Pn. nit S"* h* ar,`" not i,.,' ' of th; Pos,,,,, jrrs-p*,.fr|n irafts ' be con. med ,n 1 aPnii. cesan,, not tr, rLJct th,. lA.^;for use with Jm piasteri Sanda. Per- ' j. Wrmieulite ^hall con,,i ASTM Specification '\~T tr use in basecoat 'w'r For plastering, the w..-e.olg,,,-h--t p. er ,, cu. ft. 1ji b- e' Ltorr s>a'n<d". 1.0.0..lbs for and Vermiculite. 7 t Fine Sand having jed particles uniform in "L" frequently called quick- fine Perlite or fine 7* In-.icuhte shall not be used. \(tgre^ates for Finish Coats -restate for use in gypsum ^ putty trowel finish, such .' ^lica sand, perlite, etc.. tj'l be graded within the ,10'" mg limits: iroperlv j work ,,f j f tun Silk PorconUn Ratainad an Slava Volume Sand by Weight Min. Min. Max. Max. be de. . si pack. I ndles. II other * Is shall j ((41 micron) no. 30 (j}5 micron) ic 100 (1*9 micron) NO(74.'0m0 icron,) 0 10 100 100 -0 0 10 40 100 70 100 0 40 70 adv for j off the 1 id awa-,vl D. Water shall be clean, fresh ur faceess A tend suitable for domestic con- Bimption. Is s shall followinds as Beston and urrent )ns as C2a C28 liter C28 'aster C28 E. Delivery and Protection of Materials VI manufactured materials -hall be delivered in the ori ginal packages, containers, or --undies bearing the name of he manufacturer and the brand. Plaster and all cementi:iuus materials shall be kept jrv until ready to be used, they shall be kept off the 'round, under cover, and jwav from sweating walls and ther damp surfaces. Metal roods shall be protected usainst rusting. C2S c:s C59 C6; 106 Tfpe S I L.m* C6 Type N il 3. Neat A. G-P/Bestwall Base Coat Plaster shall be mixed with sand, perlite or vermiculite in the proportion of 100 lbs. of plaster to not more than: Recommended agfragata proportion* with G-P Bastwatl Base Coot Piaster. Note Six -- 2 shovels of looso damp sand for equiva lent to 1 cu. ft. of sand PLASTER BASE OVER! GYPSUM LATH Number of Coats Typo of Coat Sand Por* By By lita Vol. Weht. Ver* (Cu. (Lb.) mi* tt.) culita Damp and (Cu. looso ft.) Two Coat work Basecoat 2V4 250 2 Three Scratch Coat 2 200 2 Coat Brown Coat 3t 300 2* Work or Scratch and IVi 250 -- Brown Coats PLASTER BASE OVER METAL LATH Number of Coota Typo of Coot Sand Par* By By lita Vol. Wght Vtr- (Cu. (Lb.) mi* ft.) culita Damp and (Cu. lOOtO f.) Three Coat Work Scratch Coat Brown Coat or Scratch and Brown Coats 2 3f 2W 200 2 300 2" 250 - PLASTER BASE OVER UNIT MASONRY Sand Par* Numbor of Coata Typo of Coat By By lita Vol. Wght. Vor* (Cu. <lY) mi* ft.) culita Oamp and (Cu. loos* ft.) Two Coat Work Three Coal Work Basecoat Scratch Coal Brown Coat 35 35 35 300 3 300 3 300 3 Where th# plaster is 1 inch or mote in total thickness, the proportions for the brown coat may be increased to 3 cu. ft. tOver high suction unit masonry, the pro portion of sand may ba increased to 4 cu. ft. Neat plaster should not be applied directly to monolithic concrete. For recommenda tions for plastering over concrete see Sec tion A and use Concrete Bond Plaster Bond ing agents for application to monolithic concrete as a base for the reception of plaster may be made at the discretion of the specifier Such bonding agents shelf be applied m accordance with recommenda tions of the manufacturer. B. G-P/Bestwall Lite-Mix Plaster: Lite-Mix Plaster is a gypsum ready mixed plaster in which perlite aggregate has been incorporated with the gypsum plaster at the plant. It requires the addition of water only for use. C. G-P/Bestwall Gypsum Wood-Fibered Plaster 1. G-P/Bestwall Gypsum wood fibered plaster shall normally be used without the addition of aegregate but may be mixed with one part of sand. 2. Over masonry bases or over lath as a brown coat, sand shall be used, the proportions shall not exceed one cubic foot of aggregate per 100 pounds of gypsum wood-fibered pias ter. 4. Plaster thickness A. Plaster shall be of the fol lowing thickness when meas ured from the face of the plas ter base to the face of the fin ished plaster surface (allow ing approximately 'w' to Vs" for finish coat). 1. Metal Lath--5/a" minimum (when measured from the back of the lath, excluding rib lath, thickness shall be " minimum). 2. Gypsum Lath-- mum. mini 3. L7nit Masonry -- 5s mini mum (except gypsum tile. *2" minimum). 4. Monolithic Concrete: a. Walls-- 7s maximum. b. Ceilings--3g' maximum. c. Where greater thicknesses are required, metal lath shall be firmly attached to the con crete prior to the application of the piaster. B. Plaster Grounds 1. Metal grounds, screeds, etc. shall be furnished and in stalled by the (lath) (plaster) contractor. 2. Plaster screeds shall be ap plied by the plastering con tractor. 3. Wood grounds shall be fur nished and installed by oth ers. 5. Preparation :zr plastering A. All metal grounds, corner beads, screeds, picture molds, etc., shall be carefully ex amined to see that they are straight, plumb, level, square, or true to the required angles before the plaster is applied. B. Plaster shall not be applied to masonry or concrete sur faces that have been coated with a bituminous compound or other waterproofing agents. C. Masonry surfaces exhibit ing high suction shall be even ly dampened to provide prop er suction prior to plastering. Allow sufficient time for -,urface suction to equalize. D. Monolithic Concrete 1. M onolithic concrete sur faces to receive bond plaster shall be cleaned of all dust, loose particles and other for eign matter. 2. Concrete surfaces shall have sufficient roughness to provide a proper bond. If sur faces are not rough, they shall be hacked or brush hammered or a dash coat of Portland ce ment grout composed of one part cement to 11 j parts fine sand mixed to a mushy con sistency shall be applied. The Portland cement grout shall be forcibly applied to the con crete surface, using a stiff fi ber brush, with a whipping motion. This coat shall be kept damp for at least two days immediately following its application and then al lowed to dry. Before applica tion of plaster, the surface shall be evenly dampened, if necessary, to provide proper suction. 3. The use of dressed (smooth) lumber, metal and plywood forms, oiled or greased forms, or vibrated concrete produces concrete surfaces which are too smooth to receive plaster. E. Grouting Metal framing and Bases 1. Hollow metal bases, metal door frames and metal framed openings, when used for solid partitions, shall be fullygrouted prior to lathing. The grout shall be screeded ap proximately '4 below the top edges of the base so as to form a center groove to permit the lath to extend below the top edge of the base. 2. Metal door bucks and framed openings in hollowsteel stud partitions shall be fully grouted prior to lathing Where basecoat plaster is flush with metal base, metal frames, etc., plaster shall be SGP 0022690 GEORGIA-PACIFIC/BESTW ALL F/13 G-P/BESTWALL plastering specs, cont'd. ^,|3ste cut free from these metal sec tions before the plaster sets. The finish coat shall be grooved at this junction to prevent chipping. A. Hand Mixing 1. G-P/Bestwall Gypsum Neat Plaster-1 Aggregate re quired) Aggregate and plaster shall be mixed dry to a uni form color at one end of the mixing box. hoed into the water and thoroughly mixed to the proper consistency. 2. G-P/Bestwall Lite-Mix Plaster-1 Aggregate shall not be added). Plaster shall be hoed into the water and thor oughly mixed to the proper consistency. 3 G-P/Bestwall Gypsum Wood Fibered Plaster(Without aggregate.) Plaster shall be hoed into the water and thoroughly mixed to the proper consistency. 4. G-P/Bestwall Gypsum Wood Fibered Plaster (With aggregate.) Plaster and ag gregate shall be mixed dry to a uniform color at one end of the box. hoed into the water and thoroughly mixed to the proper consistency (See sec tion 3-B.) B. Mechanical Mixing With the mixture in opera tion. the following procedures shall be followed: 1. G-P/Bestwall Gypsum Neat Plaster. a. Put in the approximate amount of water. b. If sand is used add ap proximately half of the amount of sand. If perlite or vermiculite is used, add all of the aggregate. c. Add ail of the plaster. d. Add remainder of the sand aggregate. e. Mix to proper consistency, adding water if necessary. f. Dump the entire batch and use. g. Clean the mixer. 2 G-P/Bestwall Lite-Mix Plaster. a. Put in the approximate amount of water. b. Add the plaster. c. Mix to proper consistency, adding water if necessary. d. Dump the entire batch and use. e. Clean the mixer. 3 G-P/Bestwall Gypsum Wood Fibered Plaster - May he used with or without the addition of aggregate. (See section 3-B2.I a. When aggregate is added, the procedure outlined in sec tion 6-BI shall be followed. b. When used without aggre gate. the procedure in section 6-B2 shall be followed. A. Two-Coat Work -- Base (first) coat shall be applied with sufficient material and pressure to form good bond on gypsum lath or masonry as the case may be. and to cover well. Then, before this scratch coat has set and without tak ing its surface, material of the same proportions shall be doubled back to bring the plaster out to grounds struck to a true surface with rod and darby, without application of water and cross raked or scratched to provide a me chanical key for reception of the finish (second) coat. Slow setting plaster shall be accele rated to provide a set (mixed material) of less than 4 hours. NOTE: Two coat plaster ap plication shall not be used on the following constructions: 1. Metal lath, wire lath or pa per-backed wire fabric. 2. 'i" gypsum lath attached to horizontal supports spaced more than 16" o.c. 3. Gypsum lath on ceilings at tached by clips providing edge support only. 4. 3s 'perforated gypsum lath. B. Three-Coat Work-Scratch (first) coat shall be applied with sufficient material and pressure to form good lull keys on metal lath, wire lath, or wire fabric, or good bond on gypsum lath or masonry. as the case may be. and to cover well and then be scratched to a rough surface. Slow setting plaster shall be accelerated to provide a set (mixed material) of less than 4 hours. Brown (2nd) coat shall be ap plied after the scratch (1st) coat has set firm and hard, brought out to grounds straightened to a true surface with rod and darby, without application of water and cross raked or scratched to provide a mechanical key for recep tion of the finish (3rd) coat. To insure full plaster thick ness. plaster screeds should be applied to scratch coat prior to application of brown coat. C. Plastering on Monolithic Concrete Surfaces of walls and columns shall have a scratch coat of bond plaster, followed by a brown coat of gypsum plaster (in the pro portions of 100 lbs. of G-P/ Bestwall Gypsum Plaster to not more than 3 cu. ft. of sand or perlite) troweled into the scratch coat before it has set. The brown coat shall be brought out to grounds. using a double-back application if required, straightened to a true surface with rod and dar by. without application of water and cross raked or scratched to provide a me chanical key for reception of the finish coat. Surfaces of ceilings shall have a coat of bond plaster, scratched in thoroughly, dou bled back, and filled to a true, even surface and left rough (maximum thickness 3s ) t0 receive the finish coat. D. 2" Solid Plaster Partitions (Gypsum lath--studlessi shall be scratched in on both sides with 3g" fast setting plasters (maximum 3 hours i The side away from the temporary bracing shall be browned after both scratch coats have set and partially dried. After this brown coat has set firmly, re move the braces and brown the other side leaving 1 ' for finish coat to bring wall to full 2" thickness. E. 2" Solid Plaster pan (metal lath-studle<Sl 1. Where rib meta| used, temporary hrao-1' be attached to the n),. ii ' the scratch coat shall' -1' plied in the flat Where diamond me^\' lath is used, the t-rr.-' bracing may be atta. - " either side, and the jT coat shall be applied tc,' posite side. i-- rreh'1 'A h' in"'' ' v 1- ' ' he*'1 fin1' K' * tin1 2. Application of brew-,, back-up coats shall r,t . cordance with nne .4 -. low ing methods: a. The back-up coat -h3 applied on the bracen -2 the lath and shall be t by the brown coat a-over the scratch coat b. The brown coat shall applied over the lace scratch coat, then the hac, coat shall be applied braced side ot the partux- 2 v" be .! -.0 i!" ; F'' r:'.: x- - 3. After the plaster arx has set. remove the hracio-. complete the brown coa: this side leav me ' - out wall to lull 2 thiokr.-. 4 A. Lime Putty 1. Bestwall Smooth Fin Lime shall be box -uake': machine mixed with 6 ;o gallons of water for eat.-, lb. bag and allowed to overnight. i:rr.~ the h E. Th- 2. G-P/Bestwall BuildeLime shall be mixed with: proximately 6; , gallons water per 50 lb bag. It t: be machine mixed and immediatelv or soaked 4 used the next day. H vt'n r -.1:: rh-- B. Gypsum-Lime Putty Tro el Finish NOTE: For -mouth t refinish over lightweight agg: gate basecoat. : j to 1 cu. tfine sand or perlite shall added for ejen iOdihs of." sum (Gauging or Keenest menti It also mav he vie over sanded ha.-evoat. K. 1- ^la ~ 1. Gypsum-iime putty tre-1 spr. finish shall he mixed m :. proportions of 1 part gaus: plaster (calcined gvpsum 1 not more than 3 parts of !:r putty by volume plu= sand perlite. I SGP 0022691 F/14 For rated fire resistive construction use G-P Bestwall gypsum p;oc..:!s *<!ti G P Paneling See "Georgia-Pacific Guide to Products for Interior 'a'e ng arfi'ti. S) \ I p- lath 'K *11 h,,3r" ! >ide `sh m... -mP'> r, achf.r| t SCrai, to th,.,. specs. cant'd. ter>9 bl5 Trowed GyPsum ?*pf5 t ,`j.-jnip>hrepared 5>;P.unj k ,h ,s used, .t hall e V - Jnststency in accorfi ,x^,,h the directions of the jfjcturer. ,,e s Cement-Lime Putp K*nfce ;V,.h ,ms aycebme epnrtoploimrteionepdutttyo ;,jin 3 sramlard hard, medi sjrd or extra hard finish water shall be avoided in the application of all types of fin ish coat plastering. NOTE: F ine sand or perlite shall be used in smooth trowel finishes Over gypsum or metal lath bases where light weight aggregate is used and the aggregate content in the basecoat exceeds 2 cu. ft. per 100 lbs. of gypsum, a sand float, acoustical or other fin ish shall be used. Smooth Trowel Finishes shall not be used in this place. "own ar. b<* in a, f the ' shall ),,. d side. ,. follow,.. appli,-. shall h. :e of th, ? back-u; d on th, rtition. \ folio* s; " t randard hard finish will ' ;',d in the proportions of h4 of Keene's cement to >1 " of dry hydrated lime. <) lbs a medium1h..ard finish shall ,,1Ved in the proportions of ''"libs of Keene's cement to j lbs. of dry hydrated lime. rNtra hard finish shall be ,AeJ in the proportions of ly) lbs. Keene's cement to 25 hs dry hydrated lime. A. Trowel Finishes -- Trowel Finishes (smooth) shall be applied over the base coat scratched in thoroughly, laid on well, doubled back and filled out to a true, even sur face. The general thickness shall be 1m'' to Vg"- The finish shall be allowed to draw a few minutes and then it shall be well-trowelled with water to a smooth finish, free from cat faces and other blemishes or irregularities. applitr races ar/: coat nr to brin. ckness ' i for any of the above fin.bes. aggregate shall be add/.i as s|>ecified in section SB2 for each 100 lbs. of Keene's ferment. * When mechanically mixing Keene's cement-lime putty a.nsh. the water shall be put nto the mixer first, then the t Finish ..me.the aggregate and finally oaked nr the Keene's cement. 6 to 61 each 51' , to soak 1 . Gypsum Sand Float Finish The finish shall be mixed in he proportions of 1 part of ppsum neat unfibered plas uilders ter to not more than 2 parts of with ap and. by weight. lions o: . It may ind usee F. Keene's Cement-Lime Sand Float Finish ked anc. This finish shall be mixed in '.he proportions of 2 parts of I [me putty, 1U parts of ty Trow- J Keene's cement and 41 2 parts ; sand, by volume. l trowel i it aggre- 9. fle : icg-i :r cu. ft o: shall be c of gyp-nes Cebe useti fi". ir.is The finish coat shall be ap plied to a partially dry base roat or to a thoroughly dry 3ase coat which has been y trowel i in the evenly wetted by brushing or spraying. The use of excessive gauging tsumi to s of lime sand or B. Float Finishes - Float fin ishes shall be applied over the base coat, scratched in thor oughly. laid on with a trowel to an even surface, and then floated (with wood, carpet, cork, rubber or other type floats, depending on the tex ture desired) to a true, even surface free from slick spots or other blemishes. C. Special Plasters -- Special Plasters shall be applied in accordance with the direc tions of the Manufacturer. DEIMS-COTE SYSTEM l L'se G-P/Bestwall DensCote Gypsum Base i glass fi ber reinforced) C" thick by 4" wide with tapered edges and S'. 10 or 12 long. Applv 1 2 Dens-Cote Gypsum Base with ring shank nails S o c for side walls and 7" o.c. for ceilings, to framing members spaced a maximum of 24 o c For fire resistive ratings anti other special installations C and 5a" Firestop and Dense Cote base are available. For these installations use a fas tener. with a J4 " to ` j ' pene tration in wood framing mem bers or fastener required for rating. 2. Use 2' 2" wide glass fiber mesh to reinforce all flat joints and angles. L'se 1 x 1" per forated metal beads for cor ners. For best results applv the mesh by embedding it with Dens-Cote Smooth Finish. This is accomplished bv troweling a layer of Dens-Cote Smooth Finish over the joint area and pressing the glass fiber mesh into the Dens-Cote with a trowel. The mesh may be first stapled to the DensCote Gypsum Base, if desired. In any case, the mesh must be embedded with Dens-Cote be fore the over-ail application begins. At the -ame time, fill all metal corner heads. These areas may be allowed to set before the over-ail application is commenced. This prelimi nary embedding of the joints keeps the glass fiber mesh from wrinkling, promotes uni form takeup. and assures posi tive keying of Dens-Cote Smooth Finish into the mesh. Corner beads designed for thin coat applications (not regular wallboard corner bead) should be set to regular plaster thickness at :;.u" mini mum. Nail or screw corner bead to framing member. 3. Trowel the first coat tightly over the entire wall or ceiling surface. This application should be uniform and about thick. 4. As soon as the first coat has taken up 1 5-10 mins. 1. double back with a leveling coat, which will bring the total thickness applied to a mini mum of :ltig '. 5. + After the second coat has taken up ( 15-20 mins. 1. begin final troweling, using water if required. The final troweling must be completed before the set takes place, as evidenced by darkening of the surface. 6 Make joinings at angles. Ceilings should be done first, then sidewalls. 7. Coverage of D,-nv-C,lt,. Smooth Finish is I'-jn -quare yards thick) per 1<ju ih bag. Base Plaster. This is accom plished by troweling a !-av,r of Dens-Cote Ba-e Planter over the joint area and press, mg the glass fiber m.-'h into the Dens-Cote with a trow.4 The mesh mav he first stapled to the Dens-Cote Ba-e. it sired. In any case, the mesh must be embedded w nh Den>Cote before the overall appli cation begins At the -ame time, fill all metal corner heads. These area- mav he allowed to set before the over all application is commenced This preliminary ,-mhenhing of the joints keeps the gla^-. fiber mesh from wrinkling, promotes uniform takeup. and assures positive kc. tng of Dens-Cote Base Piaster into the mesh. 2. Trowel the Dsn-Cote Base Plaster tiehtlv "or the entire wall or ceiling surtace This application should he jnth.rm --about ' s thick 3. As soon as Den -- Cotc Base Plaster has t.ik- n it) suffi ciently. straighten .1.1.1 '-ut m not t row e i sir,. . : : Li-jv e rough so that nr.'-:: . a: will key properlv 4. Apply finish . o.\t a- /..on as possible alter b.i-e , at has set 5. Finish with hn pa"', ind gauging lor a . tt'ior.il smooth finish -r ,ir\ -and float textured .'it! -; 6. If a hard dor i:-;e m<.fh finish is dt-'ire. I ... ! >. n--(`..te Smooth Fmi'ti 1. Maintam a at least 4i F area 24 hours 1 and alter act ! 2. I n hot ..., 1 drafts ami ering door .1:: ings. .3. Plan th.- x proceeds 11. at: from one to the oth. r I a prog re-'iv i v up. t A soec:ally `tv- . n Oens-Cote where see: -a -, surfaces are :* B procedure oes should Oe :-e ' - ' final coat F; - -. tdaekpeenuddenotn "r -- ' - - in jerera. "a. the lor-iei -e should we :e . has corr-'e- - accoh-ct ssej - . or other s. ta: ? ' rat are ` t v .rMng during dint -t . t.ishion -urtac: .rom. -te r it'. 1 a ke tec i-ated GEORGIA-PACIFIC/BESTWAll F/I5 SGP 0022692 G-P/BESTWALL Advantages of the gypsum wallboard system G-P/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 protect the core. The ends are square cut and smooth finished. A strong gray paper is on the back side. structural strength One of the finer qualities of G-P/Bestwall Gypsum Wallboard is its structural strength. W'hen properly applied in the specified manner it readily resists flexural stresses and will not crack or sag. G-P/Bestwall Gypsum Wallboard is flexible enough to conform to moderately curved surfaces. fast application G-P/Bestwall Gypsum Wallboards are large sized, and lightweight panels. Because of their simplicity in erection the paneling goes up very fast. Wallboards may be "scored and snapped" or cut to the desired size and shape. Large size sheets of l/2 " or s<g" Regular or Type "XXX" Firestop Gypsum Wallboard There is approximately 1 mile of glass fibers per sq. ft. in 14" G-P/Bestwall Gypsum Wallboard. This is an important and unique factor to consider in specifying G-P/Bestwall drywall construction. fire protection The solid core of all G-P/ Bestwall Gypsum Wallboard is incombustible. Gypsum will not transfer heat in excess of 212C F. until all its water of crystallization has been driven off in the form of steam. may be applied horizontally or vertically. Panels pre-cut to ceiling height. F/16 Single or multiple layers may be applied on each side of wood framing, metal framing and/or gypsum studs. Fire resistive ratings 1 hour to 3 hour ratings. Various types of sound panels may be used in conjunction with these fire re sistive constructions. An in combustible sound panel must be used in an incombustible assembly. (For special fire resistive rat ing and sound characteristics, details, refer to Technical Data pages F/22 thru F/25. SGP 0022693 For rated fire reserve construction use G-P 'BestwaM gypsum products with G-P Paneling See ''Georgia-Pacific Guide to Products for Interior Pane'i^g G-P/BESTWALL EXCLUSIVE jijss ;ib9r jinrorcemsnt in this section Literally miles of glass fibers have been mixed into the gypsum core of all G-P/Bestwall Wallboards. This is an extremely important factor to consider when specifying wallboard. Glass fiber filaments of uniform strength and length are as strong as high strength steel of the same size. The addition of these glass fibers adds greater resilience, strength and handling ease to the wallboard. Should the water of crystallization of the gypsum mixed be driven off in the form of steam by excessive heat, the remaining fiber glass con tent will help the wallboard remain rigid to a degree. For further information write directly to the Georgia-Pacific. Bestwall Gypsum Division, or consult nearest district office listed on the back of this catalog. wallboards backers ratings predecorated panels construction systems wood stud part, metal stud partitions laminated part. SGP 0022694 accessories joint concealment GEORGIA-PACIFIC/BESTWALL f G-P/BESTWALL Gypsum wallboards '3 3 ji Jr G-P/Bestwall Regular Gvpsum Wallboard is manufac tured with Tapered or Square Edges and faced with a strong, cream-colored paper which will take any type of decorative treatment. The gypsum core is reinforced with miles of glass fibers. The ' :iv intakes 1s" Gypsum Wallboard is used primarily in repair and remodeling work. Light weight permits easy handling and application. It is also rec ommended for use in double layer laminated gypsum wallboard construction. `T Gypsum Wallboard is a lightweight economical gyp sum product for application directly over existing walls and ceilings and for use on curved surfaces and in dis play work. SIZES Length 6' to 16' (in even feet) Width 4 Thicknesses 1 i ". 3g", y2", 5s" Edges Tapered. Square Bev eled (special order only) G-P/Bestwall Insulating Gyp sum Wallboard is regular gyp sum wallboard. also reinforced with glass fibers for greater strength, with bright alumi num foil laminated to the hack surface. The Bestwall Sound Op ening System is a low system designed for use wall and floor and ceiling 5... terns where a reduction m passage of sound from rec to room is desired. ^ ,* BC*0 gray back paper is as strong as the face paper. Vi> and 5g'' wallboard with Tapered Edges are recommended for single layer application in new construction. Tapered edges are designed to be re inforced by the G-P/Bestwall Joint Systems for smooth, seamless surfaces. Square Edges are recom mended for use where ex posed joints are acceptable. Increased resistance to fire exposure and sound transmis sion depend upon greater board thickness used. (See Technical Data Chart, p. 22 to 25.1 Wood stud load-bearing parti tions faced on both sides with Vi" G-P/Bestwall Gypsum Wallboard have a fire endur ance of 40 minutes, as tested in accordance with E-119 Standard Method of Fire Tests of Building Construc tion and Materials. When faced with 38" G-P/Bestwall. the fire endurance is 25 min utes. G-P/Bestwall Gypsum Back er. designed for first or base layers in field lamination of gypsum wallboards. acoustical tile and other compatible ma terials with adhesives, pro vides low cost, level surfaces for further decorative treat ments. It may be applied over loadbearing or non-loadbear ing wood or metal framing with nails, screws or staples. SIZES Length 8' longer on order Width 2 and 4' Thicknesses 3/8", Vi", 's" Edges Square, T&G In a single layer application it provides the advantages of regular gypsum wallboard plus giving effective insula tion and efficient vapor bar rier in one product. A sep arate and continuous vapor barrier automatically goes up on the warm side of the wall when G-P/Bestwall Insulating Gypsum Wallboard is applied. The aluminum foil, facing a 34" minimum air space, re flects 90% of radiant heat, providing insulation qualities equal to l.-j" of fiberboard in sulation (tested by L S. Bu reau of Standards i Insulating Gypsum Wallboard is avail able with square or tapered edges. Panels must be installed with foil side against the studs. To have reflective insulation value. FHA requires the foil face a minimum air space of 3r. Miles of glass fibers are dis persed in the gypsum core to provide added resilience, strength and handling ease. The large lightweight panels handle easily and can be scored and snapped to desired size. SIZES Length 6' to 16' ( in even feet) Width 4 Thicknesses 38", V2", 38" Edges Tapered, Square Bestwall Sound Deadenier Board is ideal for residents or apartment type construe tion. Bestwall Sound Deader ing Board gives up to 51 ST1' in various isolation asserr blies. In floor and ceiling fifesound deadening board ma. be used over the joists be tween finish floor and scr floor or below joists w::: fasteners fastened throur face gypsum wallboard ar.: Sound Deadening Board in:, joists. BESTWALL SOUNl DEADENING BOARD Square Edge: thickness width 4 . length 8 . ASTV. Standards C-208-60 Class A Federal Specifications LLL 1-535 Class A SGP 0022695 F/18 Far rated fire resistive construction use G-P Bestwall gypsum products with GP Paneling. See "Georgia-Pacific Guide to Products for interior Paneimg ) C'.>. se . ? Sv.'1 Ir >h.. ro,|rn *n i npr entia 'trueaden- STC ssem- fiher may 5 hesubwith ough and I into ND RD i ; STM ss A. LLL- proved G-P/Bestwall sv* n^face marked Type F combining all the adN'^ees of the original gypjn fallboard in the original .ait' gypsum wallboard k-psiim core with un>|,h nded vermiculite and glass fiber reinforce;ri , and a lower weight than ever before gives increased fire protection, strength and bet ter nailing qualities. The .ermiculite balances gypsum shrinkage by expanding when exposed to heat, while the textile glass filaments keep the core intact even after its chemically combined water has been released, giving a thermal stabilized core. The original Type "X" gyp sum wallboard provided a full ! hour fire retardant rating in single layer application over incombustible (metal) and combustible (wood) framed "alls and partitions and floor and ceiling assemblies. Now through greater glass fiber re inforcement, its fire resistance has been increased (see tab ulations Page F/22 thru F/25 and the weight substantially reduced. Economical -- Large, light weight panels handle eas ily and can be scored and snapped or cut to desired size. Low Cost -- New Improved G-P/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. Strength -- Resists crosswise stresses. Vg" Firestop has flex ural strength of 220 to 270 lbs. as compared to ASTM mini mum requirements of 150 lbs. for 5/g" regular gypsum wallboard and a Federal Specifi cations minimum require ment of 110 lbs. for V2" reg ular gypsum wallboard. Official Sound Transmission Tests of various assemblies make possible partitions with Sound Transmission Class (STC) of 34 to 58. G-P/ Bestwall Firestop over Vj" G-P/Bestwall Sound Dead ening Board each side of wood studs 16" on center has been proven in a full scale fire test to have a 1-hour fire resist ance. This same construction has an STC of 46. G-P/Bestwall Firestop is rec ommended where extra fireresistance is required in resi dential. commercial and pub lic buildings. For years 38" thickness has provided one hour fire resistance in single layer application on both walls and ceilings over wood or steel, while Vi" thickness has provided 45 minutes fire rating in single layer applica tion when applied over wood framing, for both walls and ceilings. The New Improved Firestop has greater fire re sistance and the Vi" Firestop will provide 1 and 2 hour floor and ceilings in single layer application. See the tabulation on pages F/22 thru F/25 for greater fire resistance in single layer ap plication for both Vi" and 58 ' thick G-P/Bestwall Firestop. The extra fire protection of fered by G-P/Bestwal! Fire stop is built right into the core through the use of specific amounts of incombus tible glass fibers and unex panded vermiculite which result in a thermal stabilized core. 'i" and 5/s" G-P/Bestwall Firestop qualify for Building Code acceptance in the con structions as shown in the table on pages F/22 thru F/25. G-P/Bestwall Firestop is listed by Underwriters and carries the UL Label for 45 minutes. 1, 2. 3 hour Fire Re sistance in various Designs and for Fire Hazard Classifi cation of 10-15. G-P/Bestwall Firestop in var ious assemblies meets Build ing Code requirements from 45 minutes to 3 hours for in terior wall and ceiling con struction in bui! lines of all types from highly incombus tible to wood frame; and for various occupancies of resi dential. public and commer cial character. For information regarding approvals of construction as semblies - refer to Technical Data-Pages F/22 thru F/25 I FIRESTOP WALLBOARD REGULAR WAL.3CAR0 SGP 0022696 F/19GEORGIA-PACIFIC/BESTWALL G-P/BESTWALL Gypsum backerboards 5/8" Firestop G-P/Bestwall 5/j " Firestop Gypsum Backer is used as a backing for decorative sur face treatments of acoustical plasters, tile, plywood and various veneers. A single layer application of 5j G-P/ Bestwall Firestop Gypsum Backer on both sides of wood or steel framing, enables loadbearing or non-loadbeartng wall assemblies to resist tem peratures rising to 1700: F in the ASTM standard time temperature curve for one hour. Firestop Gypsum Backer con sists of a gypsum core with unexpanded vermiculite. re inforced with literally miles of high tensile strength glass fibers, firmly bonded to a fibrous grey paper on both sides. 'alumn re proofing Fireproofing with G-P/Best wall Gypsum Wallboard pro vides a fast, efficient and eco nomical method of protecting steel columns. Fire resistive assemblies of two. three and four hours are obtainable depending upon the number of layers of Vs" GP/Bestwall Firestop used. The layers are held in place by a combination of screws and metal studs. The two. three and four hour fire rated assemblies of Firestop have passed Official Fire Tests con ducted by the Underwriters' Laboratories. Fire Resistive--3 and 4 hour fire resistive protection for steel columns can be obtained with three and four layers re spectively of 5,s ' G-P Bestwall Firestop and 2 hour fire resistive protection can be ob tained with two layers of Vs Firestop. Where necessary l hour of fire protection can be obtained with two layers of l't" G-P/Bestwall Gypsum Wallboard and 11/2 hour pro tection with 3 layers of G-P/ Bestwall Gypsum Wallboard. Economy-Low material cost, speed of erection and mini mum number of materials provides lower construction costs. Lighter--As compared to other types of fireproofing, a dead load saving of from 50 to 75% can be realized with G-P/ Bestwall Firestop Column Fireproofing. Speed of Erection--G-P/Best wall Firestop Gypsum Wallboard can be installed quickly and easily when used for column fireproofing following G-P/Bestwall details. Mini mum amount of wire and ad hesives are used. ILLUSTRATION -THREE-HOUR fire rated -tf-el column assembly Vs G-P/Bestwall Firestop. SIZES Length 8' to 16` Width 2,4 Thickness Vs" Edges Tongue-and-Groove. Square ILLUSTRATI9N-TWO-HOUR fire rated -Jf . * iumn assembly with Vs" G-P/Bestwall Firestop. SGP 0022697 F/20 For rated fire resistive construction use G-P/Bestwall gypsum products with G-P Paneling Sea "Georgia-Pacific Guide to Products for Interior Pa-* Tile Backer Board f r Resistant iVailboard \,\ia Roitwail Tile Backer Board is a water-resistant gypsum -t^with a light blue face paper, designed for use as a cred^ (^e acjhesive application of ceramic, metal or plastic crypsum core consists of incombustible gypsum rock. :;'e reed with glass fibers, combined with an emulsion giving water resistance. This new G-P/Bestwall product is ideal h bathrooms. ^tchens. powder rooms and all high moisture jreas- 1. Scope of work A. G-P/Bestwall Tile Backer Board shall be applied, as a base for (ceramic) imetal) (plastic) tile, to all wall areas where such tile serves as the finished decorative surface (and/or water barrier I. B. The contractor shall sup ply all tools, materials, and labor necessary and required to complete all work included in this section. C. Adequate blocking for (tub) (prefabricated recep tor) (sub pan) etc., is covered in section on Framing, (See Architect's Checklist below.) D. All materials shall be new. delivered to the job site in original unopened containers or bundles, stored in an outof-the-way place, protected from exposure to the ele ments. protected from dam age by tampering, and used in strict accordance with the manufacturer's directions. panl. When the temporary strip or shim is removed. a clearance of 1, ' shall exist between the edge of the Tile Backer Board and the lip .>f the (tub) i prefabricated receptor) (sub pam. A metal section especially designed for this purpose may be attached to the framing before the Tile Backer Board is erected. F. Tile Backer Board shall be fastened to side walls with nails spaced 8" o.c. Whore side walls are to be faced with ceramic tile thicker than 14 . nails shall be spaced 4 o c. G. Tile Backer Board shall be fastened to ceilings with nails spaced 1" o.c. (adhesive appli cation of tile to wallboard ceilings is not recommended.) H. If adhesive nail-on appli cation is used as an alternate method of fastening, the con tractor shall use not less than 2 nails per board width per support. 2. Materials A. Vo" thick G-P/Bestwall Tile Backer Board, manufac tured by G-P/Bestwall Gyp sum Company. B. G-P/Bestwall Vinyl Tile I. Where it is necessary to cut Tile Backer Board, the resulting exposed core shall be covered over with vinyl tape treatment prior to erec tion. In addition, where pipe holes occur, the contractor Backer Board Tape, market shall apply short lengths of ed by G-P/Bestwall Gypsum vinyl tape to cover the ex Company. posed core. This can be ac mn C. GWB =54 l11 ring shank complished by appl> ing strips nails or equal. of tape through the holes D. Screws, if used as an al ternate method of fastening, shall be 1" long drvwall screws. from face of board to back, to completely seal exposed core in perimeter of openings. This shall be done in a neat work manlike manner. The Tile C P/Bestwall Tile Backer Board can be erected as eas ily as wallboard and requires no finishing of joints or nail heads with joint treatment nor further waterproofing un der tile applied adhesivelv. Tile Backer Board is sealed at cut edges with a special 21-' wide self-adhering vinyl tape. Approximately one roll per msf. wallboard. Also used over any joints under tile. Ease of Application -- G-P/ 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 ap plying the tile. Glass Fiber Reinforced -- Miles of glass fiber filaments of uniform strength and length are dispersed in the E. Temporary strip or shim of wood or a specially de signed permanent metal sec tion. 3. Workmanship A. All framing members shall be rigidly fastened, plumb, and true. B. Installation of (tub) (pre fabricated receptor) (sub pan) shall have been com pleted prior to erection of Backer Board shall then be placed in position. Following erection of Tile Backer Board, the contractor shall apply vinyl tape over all edge joints. In addition, any ex posed core still remaining such as nail holes, damaged face areas, openings around plumbing fixtures, soap dishes, grab bars, towel racks -- or anywhere else, shall be covered with vinyl tape. gypsum core to provide Tile Backer Board. J. Vinyl tape shall not be ap Water-Resistant-Core is spe greater shock resistance and C. Studs shall be furred out. plied to side walls and ceil cially treated with a water re greater compressive strength. as necessary, around (tub) ings above the tile line. Tile as- sisting emulsion and the paper is treated in manufac turing to make G-P/Bestwall Tile Backer Board more wa ter resistant. Economical -- Taping joints and cut edges with vinyl pres sure-sensitive tape can save time and money. Convenience Outside Tile Area--For areas not covered by tile, joints and nail heads may be treated as those in regular wallboard and the surface primed and painted with adjacent areas of reg ular wallboard. (prefabricated receptor) isub pan) so that the face of the water resistant wallboard. when installed, shall be flush with the upper lip of the (tub) (prefabricated recep tor) (sub pan). D. Tile Backer Board shall be applied horizontally so as to minimize butt joints with Backer Board above the tile line shall receive standard joint treatment. Any vinyl tape extending above th tile line shall be cut and peeled from the Tile Backer Board. Such care shall be taken as is necessary to avoid damage to the face paper. This area shall be primed and painted For fire rated partitions between bathrooms or interior areas paper bound edge along edge as other painted areas. subject to moisture use s,s" Firestop Tile Backer proven by Underwriters' Laboratories in a 1-Hour assembly over wood > studs. of (tub) (prefabricated leceptor) (sub pan.) E. The contractor shall use a temporary strip or shim be Tile Backer Board SIZES Length 8'. II'. 12 tween the edge of Tile Backer Board and the lip of the (tub) (prefabricated receptor) (sub Width 4 Thickness. 2 SGP 0022698 Edge Tapered GEORGIA-PACIFIC/BESTWALL F/21 r Technical Data Gypsum Wallboard Construction Walls and Columns SOUND TRANSMISSION CHARACTERISTICS STUO THICK WEIGHT SIZE NESS LB.SQ. FT. WAIL SURFACE 125 INDIVIDUAL FREQUENCIES--CPS 250 500 1000 2000 NAILABLE STEEL STUDS (Loadbearing 3% 24" o.c.) 4000 SOUNO TRANS. 1CHAR. 9 SPEECH STC FREQ. PRIVACY TEST AVG. RANGE REF. 12 3 FIRE RESIST" test RATING REF, 4 `i Jh- <v 6.5 4i,*Bestwall Firestop, 1 layer each side 47 44 SCREW TYPE STEEL STUDS (Non-loadbearing 1% /f 21/2 "-3%" -24 " o.c.) -- -- 1 Hr 709 Hi' 2 !-i" iv,- 2-,' 5 2 Vt9 Bestwall Firestop. one layer eacn side ' 25 29 35 35 40 41 44 43 33 36 44 35 36 _ TL-62-72 1 Hr '--O 00 J/' Bestwall Firestop, plus IV5* fiber glass insulation n stud space 21 32 36 43 49 53 55 53 43 44 49 44 42 50 OR-64-81 i Hr es; ih' 2V,' i'-.' 3V 8 4 Vt" Bestwall Firestop. 1 layer one side, lvj * liber glass insulation m stud space. 1 layer V Bestwall Firestop over I" core board other side 30 38 43 49 51 54 55 54 51 50 53 52 47 52 OR-64-61 l '> Hr ESI ; 2 4,' Bestwall Firestop. one layer other side two layers. \x/t" f-ber glass insulation m stud space 29 37 40 46 51 54 57 54 46 48 53 48 46 52 OR-64-30 V; rt- ST 2'A' 2'A' 2'A' 355 * !/? * Bestwall, one layer each side 14 23 24 30 34 40 47 50 48 38 41 35 33 42 OR-65-2 45 Mm. est 4 3 Vt9 Bestwall Firestop. one layer each side. 2" ' fiber glass insulation 1 2`A' v/r m stud space 18 26 33 40 47 52 56 55 55 45 45 41 41 55 0 R-66-5 1 Hr EST -- H' Bestwall Firestop, one layer each side vmyi coverer I 21/,' 3K9 -- (Etemawaii) 14 19 23 30 33 39 45 45 45 40 42 35 33 41 OR-64-65 1 H' r-:s98 * Bestwall Firestop. one layer each side . H r r-:c69 2'A' i* 4.1 Vt 9 Bestwall Firestop. " one layer, other side, one layer over V\%9 fiber glass N.S. Board. plus lm fiber glass insulation m stud space 22 24 28 39 45 49 56 57 57 51 49 40 41 53 OR-65-16 1 Hr T- 3500 -- i 2'A' i'A>' - Vt9 Bestwall Firestop. one layer over Vi** f'ber glass N.S. board, other side two layers i Vt ' Firestop 27 29 34 43 48 51 57 58 58 54 54 46 45 54 OP-65-17 1"; EST 2'A' i"Ai' -- Vta Bestwall Firestop, two layers over V\t* fiber glass N.S. board, 1 other side two layers Vtm Firestop 31 34 39 47 51 54 58 59 60 56 57 51 48 56 OR-65-;S 2 H's EST _ i 2'A' 4' 6 3 Bestwall Firestop. 1 one layer, other side two layers, plus 29 I f'ber glass insulation m stud space 25 33 40 46 52 57 60 60 59 52 52 48 47 57 OR-66-6 1 - * m: EST -- 1 Zx'j * 4' 0 Vt" Bestwall Firestop, one -layer over A9 gypsum 'sound deadening board both sides screw attached (no adhesive) 28.8 29.1 35.8 38.9 45 6 49.4 52.1 57.5 61 4 60.5 57 2 45 44 3 54.4 8W-16-FT * r 2'A' 4* 7 12 Vt9 Bestwall Firestop. one layer over Vt9 gypsum sound deaden ing board, screw at tached, both sides (no adhesive), plus 2m fiber . glass friction fit in stud space 33 32 42 48 54 53 54 59 63 62 59 50 48.7 57 5 8W-17-FT 1 < Hr EST 2'A' 4'/*' 8.12 vi * Bestwall Firestop, one layer over 'A 9 gypsum sound deaden ing board, both sides. SGP 0022699 screw attached (no ad hesive). plus 29 fiber gtass friction fit in stud soaee 32 39 44 48 55 55 57 60 63 62 60 54 50.2 58.7 BW-1S-FT 1:/; H- EST ___ iw t'A' 2'A' 4 V,' 8.0 x/t9 Bestwall Firestop. two layers each side (for sound--add 2' fiber glass insulation n stud space). 24 38 45 49 54 54 51 56 55 53 55 47 45 54 3 BW-12-FT ` fci ' - 7.5 4/i * Bestwall Firestop. one layer, otner side-- iwo layers 28 5 28 32 36 5 43 47 5 51 51 5 44 45 50 43 40 46 OR-53-: , . .. EST .--- For rateo fire resistive construction use G-P/Bestwall gypsum products with G P Peneting See ` Georgia-Pacific Guide to Products lor interior Pane\rg Technical Data Gypsum Wallboard Construction Walls and Columns #E|GH!r lb sq. INDIVIDUAL FREQUENCIES--CPS 1000 2000 SPEECH CTP FREQ. PRIVACY dlb AVG. RANGE TEST TEST RATING REF. MOOEl BUILDING COOE APPROVALS "5 ^STEEL STUDS (Non-loadbearing 2V2"-35/8"--24" o.c.) Cont'd. i.,* 3sl*aH FueslOD. jne lave'- over ' iioer glass N S board, both sides 26 29 36 44 48 53 59 58 52 52 57 46 OR-65-13 1 Hr EST 4* Bestwall Firestop. one layer over '/is' hDer glass N S board, o*ner side, two layers over '/i*' fit>er glass n s. board 32 36 48 51 55 60 59 56 55 60 52 49 OR-65-14 \Vj Hr ESI s,- Bestwall Firestop, 5 ' two layers over '/n' lidergiass N.S. board, both sides 35 40 42 49 52 56 60 61 58 57 61 55 OR-65-15 2 Hts. EST 5' 10 4 , Bestwall Firestop. two layers, both sides 2 Hrs. 7-255' 43- *V 60 , Bestwall Firestop. one layer each side 20 5 26 31 37 41.5 46 50 50.5 42 40 48 42 38 45 OR-63-1I 1 Hr, F-2CI6 aSC 80 4/i Bestwall Firestop, one layer, other side two layers 24 25 33 40 46 49 52 51 44 45 50 43 40 48 OR-64-32 1H Hi EST -- 5*i* ' 80 s\' Bestwall Firestop. one layer, other side two layers, plus 3' fiber glass insulation m stud space 31 37 45 49 52 55 57 55 50 48 51 50 47 53 OR-64-51 i"? Hr T-3126 -6 -- $V ft 1 5V 5 75 H* Bestwall Firestop. one layer, other side, one layer over * Bestwall sound dead* enmg board 24 26 34 40 47 51 55 55 48 47 53 44 42 50 OR-65-1G 1 H- EST ' V%* Bestwall Firestop. one layer over V? * Bestwall sound dead ening board, both sides n 32 39 46 52 56 57 60 55 55 59 49 47 56 OR-65-11 1 Hr, EST -- -- ' fi'i* 11.0 s/i" Bestwall Firestop. two layers each side 28 29 36 44 48 52 55 53 47 51 55 47 44 51 OR-64-52 2 Hrs EST -- 6* 8.8 s/* 8eslwall Firestop, two layers, other side one layer over Vjw fiber glass N S. board 25 33 41 47 52 54 56 55 50 51 55 48 46 53 OR-64-34 2 Hrs. Esr -- 1 6l,t* H * 5`/i* n i H* Bestwall Firestop. two layers both sides, plus \Yzm fiber glass insulation m stud space 36 41 49 51 53 55 56 55 50 52 55 52 50 54 10.4 V%* Bestwall Firestop, two layers, (face layer --Eternawall) 31 37 45 49 52 55 57 55 50 48 51 50 47 4 _ OR-64-50 2 Hrs EST -- 2 Hrs T-2406 49C SUP JOINT AT CEILING (2V2"-24" o.c.) SGP 0022700 31/5* 4 3 Bestwall Fireslop. one layer each side, 2* liber glass insulation n stud space 18 25 33 39 46 50 53 53 52 43 44 40 40 50 OR-66-7 1 Hr EST * Bestwall, one layer each side 15 21 26 32 35 42 47 49 46 39 43 37 34 43 OR-65-1 45 Mlp EST DOUBLE ROW STUDS (Non-loadbearing ls/" -- 24" o.c. -- V5" x 12" Gypsum spacers fastened on Quarter points) "I *8C 8H 4.1 `/j' Bestwall Firestop. one layer over Vi* O.C. fiber glass N.S. board, both sides 28 33 39 44 49 52 53 56 55 55 56 49 45 53 OR-65-2G l Hr E3T Vj Bestwall Firestop. one layer over Vh* O.C. fiber glass N.S. board, other side two layers V5* Firestop over V)#' O.C. fiber glass N.S board 34 37 40 45 49 52 53 56 56 57 59 51 47 54 OR-65-21 !>: H' ESr Bestwall Firestop, two layers over '/u* 0 C. liber glass N S. board both sides 37 41 42 48 50 52 53 56 57 58 61 ' 54 49 54 OR-65-22 2 Hrs ES~ F/23GEORGIA-PACIFIC/BESTWALL Technical Data Gypsum Wallboard Construction Walls and Columns STUD THICK- WEIGHT SIZE NESS 18. SQ.FT. WALL SURFACE 125 SOUND TRANSMISSION CHARACTERISTICS___________ INDIVIDUAL FREQUENCIES--CPS 250 500 1000 2000 4000 SOUND TRANS. CHAR. 9 SPEECH STC FREQ.PRIVACY AVG. RANGE TEST REF. I2 3 FIRE RESIST test RAT'NC ref. 4------- 8l' ' TH< Hi SEMI-SOLID GYPSUM PARTITIONS (Non-loadbearing 1 " x 6"- 21/2 " x 3"-- 4" x 6" Laminated Gypsum Ribs-^T^ * 6"BESTWALL HUMMER *l*6* 24* 7.2 5i Bestwaii Firestop, one layer each side. 21 17 27 34 36 40 39 43 36 36 39 35 32 38.3 8*-8-FT 1 *1'. Ul 10 24**3* 44' 7.2 'i'Bestwaii Firestop. one iaver. other side, one ijrer screwed to resment channels. Plus 2' liber glass msul. m stud space. 28 39 43 47 50 54 58 57 53 53 57 51 48 54 OR-65-19 1 Hr. ESI 24'*3*. 44* 7.9 Vi* Bestwaii Firestop, one layer over 4* Bestwaii S 0. Beard-- both sides. 2 36 43 46 50 54 5B 59 58 57 59 51 48 56 OR-64-57 1 Hr T-3i:s BESTWALL HUMMER "C" 4*i6* 24* 7.8 H* Bestwaii. two layers ;each side. 23 23 31 36 36 38 39 39 36 36 41 37 34 37 Tl-60-131 l Hr T- 2"6 SOLID GYPSUM BOARD PARTITIONS (Non loadbearing) V 2- 2vr 8.1 4* Bestwaii. one layer each side. 1* Coreboard -- -- -- -- -- -- _ _ -- -- _ 37 _ 8.1 4 * Bestwaii Firestop, one layer each side, 1* Coreboard -- -- -- -- -- -- - - - - -- 39 - 9.1 H* Bestwaii Firestop. one layer each side. 1' Coreboard _______ - - - - -- 36 - - -- 2 His G.A -- 2 Hrs. G.A. - 2 Hrs EST --v --. .I'1*' ,v4' 'I*' r*i*2 3 DOUBLE SOLID GYPSUM BOARD PARTITIONS (Non-loadbearing) 4# 5* 6* 6' i 13.4 H* Bestwaii Firestop, :7*4' 2 layers each side, l* Rib Coreboard 29.5 31 34.5 37 38 36.5 35 - 42 13 4 H* Bestwaii Firestop. 2 layers each side, 51,5 37 TR-57-42 2 His. U l 7 ;5C -i4' 1* Rib Coreboard 32 34 37.5 39.5 39.5 38 38.5 - 46 5 _ 54 -- 40 -- T R-57-4 3 3 Hrs J L. 5 9.5 `4* Bestwaii over Vi* Bestwaii Fuestop. each side. 1* Rib Coreboard -- OR-64-39 14 Hrs U L 13 Vi * Bestwaii over 1* 1 Coreboard, each side of 3' a>r space 31 36 41 47 49 49 49 47 51 56 60 47 46 52 OR-64-39 2 Hrs '-2575 la* TRIPLE SOLID GYPSUM BOARD PARTITIONS (Non-loadbearing) 6* 17 4 * Bestwaii. 1 layer over; 1* Coreboard both sides 3* air space with 1* Coreboard centered in air space 29 34 40 45 47 50 54 55 59 60 60 51 46 54 QR-64-58 3 Hrs EST 6' 17.2 4* Bestwaii, 1 layer over : i( 1* Coreboard each , j! side of 3* nr space with 1* Coreboard !1 centered in air space < and fiber glass insula- I ii i tion in space on 1 side ; 36 45 49 S3 55 56 56 58 60 62 63 58 53 58 QR-64-59 3 Hrs EST PARTITIONS, METAL FACED (Non-loadbearing) ;'iir Z'i*' __ FIRE ELWIN G. SMITH AND CO. INC. 4 * Bestwaii Fiiestop. four layers -- ------ -- -- ------ -- ------ WALCON COUP. Vi * 8estwall Firestop, four layers -- R. C. MAHON CO. 4 * Bestwaii Firestop, live layers 4* Bestwaii Firestop, lour layers 4* Bestwaii Firestop, 2 layers, each side 4 * Bestwaii Firestop, five layers -- -- -- -- H. H. ROBERTSON CO. 4' Bestwaii Firestop, 2 layers, each side 4'Bestwaii Firestop. four layers 4* Bestwaii Firestop, four layers 4'. V* Bestwaii Fuestop, four layers. 4' F, S. and one layer V F/S .-- 1 -- -- STEEL COLUMN FIREPROOFING -- u-- 2 H'S. l. :: -3- 2 Hrs 2 His 2 Hrs 3 Hrs 3 * r$ u l :o 'J L 3 JL 5 'J L 3 Ul -8- EXTE -3--3-- --2 -- -9- 2 Hrs U L 3 -8- 2 * r s J L 25 -- 2 HrS U L _2 -- NO* j 3 1 - 3 Hrs U L 3 -- HR V; :4* Bestwill, 2 layers ,4* Bestwaii. 3 layers 4' Bestwill Firestop, 1 2 layers 4' Bestwaii Firestop, 2 layer; Vi' Bestwaii Firestop, 3 layers 4* Bestwaii Fuestcp, 1 a tavers i ir l`T Hr 1 Hr GuA EST 2 Hrs U L 3 3 Mrs j i : 3 4 Hrs !j L 26 -- 48- ASC ABC - 3-- t P For rated fire resistive construction use G-P/Bestwall gypsum products with G F Paneling See "Georgia-Pacific Guide to Products for Interior Paneling SGP 0022701 ;9C *8C -B-B-B-B-0-B-B- fi sc BC B-- BMS-92 ' S-|' li sw' ,-----Z--- 5S' "TV SVi' 5*' __ S' 6K* ' v,' Best wall Fuestop, both sides_________ 22 16 29 Bestwaii Firestop, tile Decker board, both sides 16 27 8.2 v Bestwaii. 2 layers, 7 layers, both sides 27 24 31 TxT S' Bestwaii Firestop, one layer over Vi* Gypsum Sounddeadening board, both sides (No adhesive) 19.4 25.8 37.1 9.5 Vi' Bestwaii Fuestop, one layer, other side two layers 23.5 19.5 33 6.3 S' Bestwaii Firestop. 1 layer nailed one side 1 layer on resilient furring other side 29.5 28 33 6.4 H' Bestwaii Firestop, l layer nailed one side 1 layer on resilient furring other side plus fiber glass insulation m stud space 33.5 35 43 9.9 S' Bestwaii. 2 layers both sides 11.0 V)' Bestwaii. 2 layers both sides, staggered studs 42 40 39 8.5 S' Bestwaii Firestop, over S' Bestwaii Sound Oeadenmg Board both sides 25 30 38 13.4 H' Bestwaii Firestop, 2 layers each side staggered studs 41 41 41 8.8 Vi' Bestwaii Firestop, 2 layers one side, 1 layer on resilient furring other side 32.5 32 38 12.0 H' Bestwaii Firestop. 2 layers each side 26.5 22 36 31 33 38 It.S 36 36.5 45 31 33 38 41 41.5 36 36.5 45 35 40 42 46 _ 53 -- 48 37.4 41.2 45.5 46.5 53.8 59.7 58.5 54.5 34.5 36 40 43 45 40 40 47 41 45 48.5 52 52.5 44 41 51 50.5 51 54 55 55 54 47.5 53 40 45 42 45 -- 41 _ 53 43 47 52 57 58 55 54 59 43 46 48 49 _ 41 _ 54 44.5 49 52.5 55 56.5 49 45 54 37 42 43.5 48 49.5 45 44.5 51 34 -- 41 37 44 50 _ 46 _ 48 41 32 38 40.8 35 41 48 39 43 45 45 45 39 -- 50.9 41 48 53 -- _ 54 _ 51 46 OR-64-8 l Hr. U l. 5 OR-64-8 8S-225 1 Hr. U.L 5 GA 8W-13-FT 1 Hr, EST CR-64-11 IS Hr, EST OR-64-7 1 Hr T-3127 OR-64-53 1 Hr OR-OO-OO IS H' OR-OO-O _ j_ OR-64-73 1 Hr T-3C06 BS-244 2 Mrs. EST OR-64-15 OR-64-12 2 H '$ es; 9: a-- ___ -- A 3C a 3C a ----_____ A 9C _____ A 3C HRE RETARDANT WOOD STUDS (2" x 4"-24" ox. f2" x 3"-24" o.c.) 4*' 3V H' Bestwjii Fuestop. one layer each side H* Bestwaii Fuestop, one layer each side EXTERIOR WALLS Sturn, Wall-S.E. Panel (wood studs 2"x4"-16" o.c.) 5' H' Bestwatl Firestop. one layer each side, IS' x 6' Gypsum rib 5' K' Bestwaii firestop, (Interior) one layer S' Gypsum Shtg., and wood siding or other (Exterior) 5K' H' Bestwaii Firestop, two layers (Interior) S' Gypsum Shtg., 2' x 8' T&G and 4' Brick wall (Exterior) 1 Hr i A P ! 1 Hi a h P 1 Hr 1 Hr *>0TE: This table is e summary only, based on tests at Underwnteis' Laboratories. National Bureau of Standards, University of California, Ohio State University. Geiger an: j ^atones and/or Ohio Research Corporation sponsored by the Bestwaii Gypsum Division, Gypsum Association, or others. The fire rating, weight and sound characteristics are :a.*J * specific details as tested and published. a-* Lab* .;-c -at 'IRE HAZARD CLASSIFICATION: Official Underwriters' Tests. S' end H' Bestwaii Fuestop, 10-15(Labeled); H', S', and H' Bestwaii. 10-15(Not Labeled) *or complete listings and details aie available. jnccftsistencies in test results ire due to tests over a period of many years and variations m laboratory facilities. 1. SIC under sound characteristics is Sound Transmission Class. ` l Frequency Average, the average decibel loss using nine of the eleven frequencies 125 to 4000 CPS range (Minus--1400 and 2800 Frq.) j- Speech Privacy Range, the average decibel loss using six frequencies--500 to 2800 CPS range. Official Underwriters' Tests have proven |Oint finishing is not required for the rating in assemblies of Firestop. ) Under `Model Building Code Approvals" (A) refers to International Confeience of Building Officials; (B) refers to Southern Building Code Congress; (C) refers to st-1: America. Additional approvals requested. WARRANTY: issemblies covered above have been developed with due regard to practical construction methods. However, since the Bestwaii Gypsum Division does not have aov p Suildmg design and its construction or the metnods of application used with then products, no warranty of performance is made. All of the test results have been obtameo -* 3itionj where controlled environment reduces variables to a minimum. In the field, such laboratory conditions are not always met since many other variables are introduced wed results of field tests, but the laboratory tests under controlled conditions are the oniy logical way to compare the performance of different assemblies. The Bestwaii G:: Pacific Corporation makes no warranty that the performance of assemblies in the field iil have a oerformance equal to or better than that developed in the test. SGP 0022702 GEORGIA-PACIFIC/BEST WALL F/25 . ./gESTWALL ' -::cn :. J J J. J T. ~vj.ti r J .- "i r 11; i o n . manv different .* "ruction :v`:':;^wd on `he IV - J nj: 3i"Vnrn-'Is\ottL`naltf.livVaacUot-uo.i:Uuou~n.rnu_sp.idanUBerrrataoaisccftmiiuicorlaannallcs.-r ' 'ht` iT Fire Resistance, ' Transmission. Relative ,-nd the installation, -m'^'^nal Restrictions and -- ''Economy- y a rwaJl has many diffeLr` :f trials which can be individually or collec- - The following pages ion a brief selection ;`iems and their advan- jjt'S. n(?r no matter which ^ "m is used there are some basic installations con- 'T'auons to keep in mind. (be wall and floor and ''iln* constructions have fleeted, it is important -jt thev be installed properXhe following precautions -,.uld be taken during instal"|t,on to avoid situations or btions which will detract ,m the sound control prop- 1 *'nes of the assembly: RESILIENT CHANNEL ON ONE SIDE FOR REDUCED SOUND TRANSMISSION--STC OF 41 Materials: All gypsum wallboards. metal runners and acces-iries. joint system products used, shall be furnished by the GP/Bestwal! Gypsum Division. Gypsum wallboard 3/g'\ V2" or =s" thick Regular or Firestop. 4' wide x ceiling height for .rrtical application or up to 16 long for horizontal application, tapered edge. Framing: Prior to the gypsum board application, all framing members should be true and firmly nailed in a plane surface. Provide double studs at all corners. Both inside and outside ntersections are formed by extending one edge of a panel over he other edge in a flush position and covering with tape and >int treatment. In single ply installation, all ends and joints i gypsum wallboard shall occur over framing members, except nat this is not required for treated joints at right angles to framing members. Application: Gypsum wallboard may be applied horizontally jr vertically to 2 ' x 4 wood studs with nails or screws. (Alter nate method-stud adhesive may be applied to studs before ap plying gypsum wallboard.) The gypsum wallboard shall be attached with GWB-54 annular ring nails 1/i" head, .098" Dia. ASTM-C380-- 13-4 '-L38'' long or with 1VV long G-P/Bestwall Type "W" drywall screws. 1" long G-P/Bestwall type "S" DrywalI screws. SINGLE PLY GYPSUM WALLBOARD MAXIMUM FRAMING SPACING billboard Thickness 'i sidewalls 1ft sidewalls 4" sidewalls Application Horizontal or Vertical 16" o.c. Horizontal or Vertical 24" o.c. Horizontal or Vertical 24 " o.c. NAILING OR SCREW SPACING FOR SINGLE-PLY GYPSUM WALLBOARD Wallboard Thickness 3/j" sidewalls . x/i" sidewalls 5/j" sidewalls. (Framing 16" o.c.) Single Nailing Oouble Nailing 8" o.c. Max. 8" o.c. Max.. 8" o.c. Max.. 12" o.c. Max. 12" 0 c. Max. 12" 0 c Max. Wallboard Thickness %" sidewalls Vi" sidewalls 5/a " sidewalls Framing 16" o.c. Screw Spacing 16" o.c. Max. 16" 0 c. Max. 16" o.c. Max. Framing 24" 0 c Screw Spacing 12 ' o.c. Max 12 ' o.c Max. NOTE: Nails or screws should be driven not less than from edges or ends of panels. While fasteners are being driven, the wallboard shall be held in firm contact with the underlying sup ports. Preferably, application of fasteners should proceed from the central portion of the wallboard to the ends and edge. Dimple nails or screws without breaking the face paper Joints: All joints should be taped and finished with tape and joint compound, nail or screw heads should be finished with bedding and topping compound. Exterior angles are covered with G-P/ Bestwall Metal Casing Beads and finished with joint compound. NOTE: This assembly with one layer s/8" Firestop each side has a 1-hour fire resistive rating and an STC of 34: for addi tional fire resistive ratings and sound transmission character istics. see Page F/25. SGP 0022703 GEORGIA-PACIFIC/ BESTWALL F/27 G-P/BESTWALL 1. Caulk between top and bot tom member and floor or ceil ing line. Leaks allow sound to pass through. 2. Avoid back-to-back electri cal outlets, plumbing outlets, etc. Sound can pass directly through the wall at these lo cations. 3. Do not use unnecessary fasteners. Fasteners recom mended are optimum, and ad ditional fasteners may reduce the separation effect and cause the wall to lose some of its isolation properties. 4. When laminating full size sheets, apply laminating ad hesive in narrow bands around the perimeter and down the center of each sheet. Full lamination reduces sound barrier properties. 5. Use gasketing at areas where partitions join windows or other difficult to seal areas. Sound can travel around a partition if given the oppor tunity to do so. 6. Avoid connecting plenum chambers, ducts, vents, etc. These permit the unrestricted flow of sound. Corrective measures are to make parti tions full height, and use ducts lined with absorbent material. X r.at Taomg to Ciing i !t Stud Trace u _ Mem Stud TUO ETENSIQN ANC SPl'CER HjaI'-vC.: 3*as :t Canning ---- WEMl Soe* Sc'ew. r'0! Casm; BeiC 3ac* Bacei * suggest: al7esa'e :e*a-l :tc be m .'.here 3l l; n: u:,e vent s an' c t: *~e THAT ThF N'N _A0 araP'N: SAC*' T,.CN #11. BE ,:aOD AND 3i. i: S NEEDED r!0! Casing 8eaC * SUCCESrfO RELIEF JOINT fcb long Runs of partitions TC BE PROVIOED AT 40 FT MAXIMUM CENTERS 6iC*10 B,C*J jamo Ahcfiot Clips to Be Fastened to "7|r Icriet / Re<Ato'CtR*ent T i BestNaiil* -- tyoe S >>A" Screw* !8 Ga Door Fr|ne INTERSECTING #AU fit*' in' - 24' O.C. For rated firt resistive construction us* G-P/Stwii| gypsum products with GP Paneling. See "Georgia-Pacific Guide to Products for Interior Paneling All evpsum wallboards. metal studs, runners and riU: '' j joint svstem products used shall be furnished *0.irif'p.geitwall Gvpsum Division, gypsum wallboard ^ CReeular or Firestop 4' wide x ceiling height for ver- ,r '|ic3t'n or t0 *ong ^or horizontal application. .*.red*,lis<?' * A Ceiling Runners and Studs: l5g". 21 j" or 35/8" (Other s" jable.l Metal studs and runner channels shall be :'lhi 3'd channels 25 gauge (0 021' ) electro or hot dipped. ; !i,rtTlt'j sheet steel with width dimensions suitable for vari- >>rutin thicknesses. iv*1nert: long G-P/Bestwall Type "S" Drywall screws. tion: Ceiling and floor track shall be aligned and d securely with a suitable fastener at a maximum of ''^'-''steel studs shall be positioned vertically in ceiling and ,i 0*' [(J5 spaced not over 24" o.c. All studs located adjacent -rr an(j ,joor frames, partition intersections and cor- ' "' hall be screwed through the stud and track flanges. Studs -'^l be in5talled not over 2" from abutting partitions, partition 'Jl rand all door frames. Studs shall be anchored by wetd- rrlholts or screw attachment to jamb and head of door or owed light frames. A stud of required length shall be posi- v j at vertical joints over door headers. Use Extension .i^ers where required. 'V or thick G-P/Bestwall Gyp- \Vallboard may be applied vertically or horizontally. The *, js screw attached with l" or suitable length Type "S" ' P'Bestwall drywall screws spaced not over 12" o.c, in field over each stud, and 8" o.c. at top and bottom runners Screws shall be power driven and seated with screw heads being slight ly below surface without breaking surface paper. Screws ->hall not be closer than :V from edges and end of panel. Vertical joints of face board shall be centered over each stud and joints shall be staggered 24" o.c. from the joints on the opposite side of wall. Boards shall not be screw attached to the ceiling runner when erected under a concrete floor slab Where walls are erected under a concrete floor slab, a 'j" slip joint is recom mended between the slab and the top edge of steel stud and top edge of face boards to allow for building movement (see detail). NOTE: Before attaching metal runners at ceiling, floor and intersection of walls at columns, a bead of caulking shall he applied in back of the metal runners for better resistance to sound transmission. Joints: All joints should be taped and finished with tape and joint compound. Screw heads should be finished with beading and topping compound. Exterior angles are covered with G P/ Bestwall Metal Corner Bead and finished with Joint Com pound. The top edge of wallboard at the ceiling angle adjacent to a concrete floor slab shall be finished with flat tape and joint compound or a G-P/Bestwall Metal Casing Bead over top edge of the face boards (see detail). NOTE: This assembly with one layer 3j " Firestop each side has a 1-hour fire resistive rating and an STC of 42: for addi tional fire resistive ratings and sound transmission character istics see Page F/22 thru F/24. I Materials: All gypsum wallboards. laminating compound, joint viem products, metal runners and metal accessories used, hall be furnished by the G-P/Bestwall Gypsum Division. Gvpum wallboard Vi" G-P/Bestwall Firestop 4' wide x ceiling -right (tapered edge), gypsum spacers Vi" thick. 6" wide x j gypsum wallboard. Owens-Coming Fiberglas Noisestop Board. :i;" thick by 9.25 P.C.F. Floor and Ceiling Runners and Studs: l Vs" shall be roll formed 15 gauge (0.021") galvanized sheet steel and spaced to suit partition thickness as detailed and held by 12" gypsum board -pacers fastened on quarter points as detailed. Steel Studs: ;V' thick. Fasteners: l"-l5j" G-P/Bestwall Type "S" drywall screws. Installation: Ceiling and floor track shall be aligned and anchored securely with suitable fasteners at a maximum of 24". Position: One layer ric" Owens-Coming Fiberglas Noisestop Board each side with vertical joint off studs min. 6". Apply one aver of `i" G-P/Bestwail Firestop Gypsum Wallboard each side and fasten with l5," Type "S" drywall screws-3/," off ver tical and end joints and over intermediate stud surface Screws spaced 12" o.c. in field and at top and bottom 8" o.c. Screws driven slightly below the surface of face without breaking face paper. Vertical joints of face board shall be staggered from the vertical joints on the opposite side of wall. Where walls are erected under concrete floor slabs, a 'V slip joint is recom mended between the top edge of the steel studs and top edge of the wallboards (see detail). NOTE: Before attaching metal runners at ceiling, floor and intersection of walls at columns, a bead of caulking should be applied in back of the metal runners for better resistance to sound transmission. Joints: All joints should be taped and finished with G-P/Best wall Bedding and Topping Compound. Screw heads should be finished with bedding and topping compound. Exterior angles are covered with G-P/Bestwall Metal Corner Bead and fin ished with joint compound. The top edge of wallboard at the ceiling angle adjacent to a concrete floor slab shall be finished with flat tape and joint compound or a G-P/Bestwall Metal Casing Bead over top edge of the face boards. NOTE: This assembly with one layer Vi" Firestop each side of partition assembly has a 1-hour estimated fire resistive rat ing and an STC of 49: for additional fire resistive ratings and sound transmission characteristics see Page F/23. SGP 0022705 georgia-pacific/bestwall F/29 G-P/BESTWALL Solid 2 ' Joiid Lj.Tiin.ited 2 /psum LVaiiboard P Another system of dry-wall construction consists of the absence of wood or metal studs, either of which has its particular fire resistance de ficiency value. In the foliowinging four systems (partiallyexplained below I the common factor in each is that they are all constructed (except for floor'ceiling runners) entirely of some form of gypsum in combustible material. 2" Solid Laminated -- (NonLoad Bearing)-A 1 gypsum core board with a 12 '' gypsum laminated to each side: no air space at all. a 2" solid wall. Has a 2 hour fire rating, eco nomical to buy and construct, a 35 decibel STC. creates smooth monolithic walls and creates extra usable floor space. 2`/" Semi-Solid Laminated-- (Non-Load Bearing)-A cen ter verticle rib (or stud) com posed of 2 layers of gy psum laminated. 11" x 6" rib. 24 o.c.) is the base upon which 's gypsum wailboards are laminated to each side. This leaves intermittent 1 dead spaces for wiring. Has a 1 hour fire rating, simplicity of installation saves money, a 30 decibel STC. creates smooth walls and provides extra floor space. Double Solid Laminated -- (Non-Load Bearing) - Con sists of laminating 1 2 ' gypsum wallboa.d to a 1' tongue and groove coreboard homogenous or laminated on each side of a 3" air space. There is abso lutely no connection over the air space except at the jambs. Has a 2 hour fire rating, greater strength than stand ard frame or thin solid wall, a 47 decibel STC and smooth wall surface. Triple Solid Laminated -- (Non-Load Bearing)-The center piece is a I" gypsum core panel running the height and length of wall, on one side of which is dead space the other side is filled with fiber glass insulation. Outer section of wall (on both sides) is a '2 wailboard laminated to 1 coreboard (this gives a l'-j" wall on both sides of center section). Three hour fire rat ing. a 57 decibel STC and smooth monolithic walls. CONCRETE CEILING J ' . " : - i J 11 3 - s j . n V n ' ? ~ a r j TYPICAL METAL RUNNER WITH FULL LENGTH RIB CONCRETE CEILING >t.`ur TYPICAL SUSPENDED CEILING DETAIL |u '- t-loor r,'ll rii"; ' b'U- Ci VpP1 jI A ''1 ` l* `n- i-l ' N. r.'" V- .'.J CtUltufl; Fiberglassor other non-combust! bl resilient material. No fasteners ^except at ceiling. Concrete mil or power shot fastener. CONCRETE CEILING ALTERNATE DETAIL FASTENING PARTITION TO CONCRETE CEILING PROVIDING SLIP JOINT -A TYPICAL SUSPENDED CEILING DETAIL > M I TYPICAL METAL RUNNER WITH VINYL OR METAL BASE TYPICAL DOOR JAMB WOOD TYPICAL OOOR JAMS METAL f ---- JOINT DETAIL ' SGP 0022706 F/30 For rated fire resistive construction use G-P/Bestwell gypsum products with G-p Paneling See "Georgia-Pacific Guide to Products for Intenor Panei--g . - I f I t> Is- Ml gvpsum wallboards. metal runners and accesmating compound and joint system products used J <urnished by the G-P/Bestwall Gypsum Division, wallboard 1 j " thick Regular or Firestop. 4 wide x J'P^u l^gight. tapered edge. 1' coreboard 2 wide x ceiling '"''hf (homogenous or laminated) T&G edge. and Ceiling Runners: 1" x l%" wood runner or 1" x 14" ^!brmed 24 gauge galvanized sheet steel "L" or "U" shaped rjant,r' leners: Nails 14 long finishing nails. Screws 1" or l1," f^^.p/Bestwall Type "S" drywall screws, 14" or 14 ' Type '^.Irvwall screws. U u` lication: Ceiling and floor track shall be aligned and `ed securely with suitable fasteners at a maximum of oc Position V G-P/Bestwall coreboard (vertically) into and floor track fasten 24" o.c. and fasten with 14" * Tvpe "5" Drywall screw. Apply G-P/Bestwall LaminatA^Compound to both sides of the l " coreboard or the backs ^ ,he face wallboards. Use either a comb type spreader, a Lchanical tool designed for applying: laminating compound, s'uiches should be *,<>' deep x 4-;" wide and spaced %" o.c. Position the face layers of wallboard and fasten along vertical ^Igcs and down middle of 4' wide board. Fasten with 14" fvpe "G" Drywall screws spaced at not over 24" o.c. in field-- s o.c. at top and bottom runner, maintain 4" space from edges and end of panel. Drive screws shghtiv below the face without breaking face paper. Vertical joints of face hoardshall be staggered a minimum ot 6' from the vertical joints of coreboard. Vertical joints of the face boards shall he staggered from the vertical joints on the opposite side of the wall. Where walls are erected under a concrete floor slab, a 1 j ' slip joint :< recommended between the slab and the top edge of the I coreboard and the top edge of the face hoards to allow tor building movements (see detail). NOTE: Before attaching metal runners at ceiling, floor and intersection of walls at columns, a bead of caulking should he applied in back of the metal runners for better resistance to sound transmission. Joints: All joints should be taped and finished with G-P/Bc-twall Bedding and Topping Compound. Nail or -crew heads should be finished with bedding and topping compound Ex terior angles are covered with G-P/Bestwall Metal Corner Bead and finished with joint compound. The top edge of Wallhoard at the ceiling angle adjacent to a concrete floor -lab -hall be finished with flat tape and joint compound or a C P Be-twall Metal Casing Bead over top edge of the face hoard- 1 see detail). NOTE: This assembly with one layer 1 s G-P/Bestwall Regu lar Gypsum Wallboard each side has a 2-hour fire re-istive rating and a 9 FRO Av. of 37 db for additional hre resistive ratings and sound transmission characteristics see Page F, 24 I Materials: All gypsum wallboards. gypsum ribs, metal runners and accessories, laminating compound, joint system products used shall be furnished by the G-P/Bestwali Gypsum Division. Gypsum wallboard 4" or 4" thick Regular or Firestop 4' wide x ceiling height tapered edge-gypsum ribs consist of two layers of 4 gypsum wallboard. factory laminated 1" thick x 6" wide -other rib thicknesses available as detailed by partition thick ness. Gypsum ribs may be cut Vi" or 5" short of ceiling height. Floor and Ceiling Runners: l"x 4" wood runner or 1" x 14" roll formed 24 gauge galvanized sheet steel "L" and "U" shaped runners. Fasteners: Nails--14 long finishing nails. Screws-- 1" or 14" long Type "S" Drywall screws--14 or 14 long Type "G" Drywall Screws. Installation: Ceiling and floor runners shall be aligned and anchored securely with suitable fasteners at a maximum of 24" 0 e. Position gypsum ribs into the ceiling and floor runners and laminate one layer of 4 G-P/Bestwall Firestop both sides of the assembly and fasten. Fasten with 14" Type 'G" Drywall screws spaced 12" o.c, in field and 8" o.c. at top and bottom ninner. Drive screws slightly below the surface without break ing the face paper and maintain 4" space from vertical edges and ends of panel. Vertical joints of the face boards are cen tered over the gypsum ribs, stagger the vertical joints from ^ertical joints of the opposite of the wall 24" o.c. Where walls pre erected under a concrete floor slab, a 1 2" slip joint is recom mended between the slab and the top edge of the gypsum rib and face boards to allow for building movement (see detail). NOTE: Before attaching metal runners at ceding :! <4 and intersection of walls at columns, a bead of caulking -iv-uki he applied in back of the metal runners for better r---i-ijnce to sound transmission. Joints: All joints should be taped and finished with (1 P Be-twall Bedding and Topping Compound. Screw h-a-i- uI.! he finished with bedding and topping compound Ext--r r angle; are covered with G-P/Bestwall Metal Corner i'e m .ml fin ished with joint compound. The top edge ot wa,:;-.,ar 1 at the ceiling angle adjacent to a concrete floor slab -bail nn-bed with flat tape and joint compound or a G P B--a.i.1 Metal Casing Bead over top edge of the face boards . - :. tail > NOTE: 4" thick face board may be used for a 2 - , k par tition. Other depth ribs may be used for thicker par- :. n- NOTE: When gypsum ribs cut 5" short of o-lir.: ':gkt are used, position and fasten one face layer gsp-rn . idboarri. position 1" x 6" wide gypsum rib. and apply la:- : com pound and fasten with 14 long G-P/Bestwali T. (. Drv - wall Screws. NOTE: This assembly with one layer 4 G P !' - nl Fire- stop Gypsum Wallboard each side has a 1 tv ar - -i-tive rating and an STC of 35. For additional Are r- - -: -ating.- and sound transmission characteristics see Pa.- .; SGP 0022707 GEORGIA-PACIFIC/BESTWALL F/31 4- CONCRETE CEILING WITH TAPE AND CEMENT oCaulking'^/ ^="105 cuing \ bMd Fiberglass or \ other non- Concrete nail combustible or powar shot resilient fastener. material. -a--------- CONCRETE CEILING ALTERNATE DETAIL. FASTENING PARTITION TO CONCRETE CEILING. PROVIDING A SLIP JOINT. TYPICAL METAL DOOR JAMB w Wood . Trim ! .^L T FLOOR DETAIL ^7'"5 CORNER DETAIL -t* WALL SECTION INTERSECTING WALL HORIZONTAL SECTION OF WALL Materials: All gypsum boards, laminating comp.*5 joint system products. runners and accessories shall be furnished by cT Bestwall Gypsum tin ^5 Gypsum wallboard ij" r T'' Regular or Firestop-Tap,.,' Edge 4 wide x ceiling and 1" coreboard. 2 ceiling height lHomogen/ T&G edge. Floor and Ceiling Runneh l3s ' x 3" wood or r x thick roll formed 24 2aiJ; galvanized sheet steel L l12" x 3" "U" shaped rj." ners. Fasteners: Nails - I1," !0. finishing nails--screws ; . 21 < long Type "S". 118 T-. "G" drywall screws. Installation: Ceiling and flr,r. track shall be aligned ar.r anchored securely with iy;,' able fasteners at a maxima of 24" o.c. Position 1 ' G-p Bestwall Gypsum Divisi-. coreboards. vertically wustaggered joints and tasteceiling and floor with 1Type "S" drywall screw; spaced 24' o c. Apply G-P Bestwall Laminating Con. pound to the coreboards or : the backs. \1 ' T ) H0mt0Nll SECTION Cl wu fJW.MJWrthbVM'iVi'.1 NTERSECTINC ftftu CORNER OtUH Materials: All g\ psum wailboards. laminating compounn. joint system products, metal runners and metal accesso ries used shall be furnisher! by G-P/Bestwall Gypsum Di vision. Gypsum wallboard G' regular 4 wide \ ceilinz height, tapered erlge. 1 ' core board 2 wide x ceding height. T&G erlge i homogenous or laminated). Floor and Ceiling Runners: 1" x 1'a wood or 1 x 11; thick roll formed 24 gauge galvanized sheet steel L ' or shaped runners. Sound Insulation: IG" fiber glass. Fasteners: Nails. 11-2 ' long 5d and 8d coaterl nails. Screws. 13 8 '. 1:8'' Type S" G-P/ Bestwall Drywall. Screws. 112". 138 Type "G" G-P, Bestwall Drywall screws. Installation: Ceiling and floor track shall be aligned and anchored securely with suit able fastener at a maximum of 24" o c. Pr<c. ide for two air space cavities Position: Cen ter G-P/Bestwall 1 " Core board and fasten at ceiling and floor line, wood runner 5d F/32 For rated fire resistive construction use G-P'Bestwell gypsum products with G P Paneling See "Georgta-Peeific Guide to Products for Interior Paneling SGP 0022708 -4^ nan. lo P > ne 1 floor 1 am) suitilium G-P/ ision .with asten iv rew<; G-P/ Comor on . e boards and fasten one layer 1/2" G-P/Best>1 - o-am Wallboard on each side of partition with IV' -twall Type "G" drvwall screws, spaced 24" o.c. in at top and bottom 8" o.c. Vertical joints of the face '' 'na staggered 6" from vertical joints of the core board. , 3.g" space from vertical and end joints. Screws '".^be driven slightly below face without breaking face VVhere walls are erected under a concrete floor slab, jp',.r -lip joint `s recomrnended between the slab and the top i nf the coreboard and face boards to allow for building .-.li*'' nt (see detail). NOTE: Before attaching metal run1l0' at ceiling, floor and intersection of walls at columns, a 3 (caulking should be applied in back of the metal run- - fnr better resistance to sound transmission. jt-rs *UI . u. All joints should be taped and finished with G-P/BestW Bidding and Topping Compound. Screw heads should be ,J hed with bedding and topping compound. Exterior angles ^" 'covered with G-P/Bestwall Metal Corner Bead and finJhed with J'nt compound. The top edge of wallboard at the 'ling angle adjacent to a concrete floor slab shall be finished '"'ih flat tape and joint compound or a GP/Bestwall Metal Losing Bead over top edge of the face boards, (see detail). s'OTE: This assembly with one layer Vt" Gypsum Wallboard lied t0 each side of two 1" Gypsum Coreboards separated ith a 3 air space, has a 2-hour fire resistive rating and a ?TC.47: for additional fire resistive characteristics see Page F/24- G-P/BESTWALL METAL CORNER METAL CASING wall>und. metal essoished n Di rt ti ling co re light, is or ners: 1*7 " :auge or fiber- ig 5d rews. G-P/ e ws. i-P/ floor and suit- I mum o air Cen.'o re eling er 5d coated nail 12" o.c. metal runner l5/a" Type "S" drywall screw 24" o.c. Staple 1V2" fiberglass insulation to one side of the center 1" Coreboard. Position the outer two 1" Coreboards. Stagger vertical joints and fasten. Apply G-P Bestwall laminating compound to the coreboards or back of face boards, apply one layer of V2 ' G-P Bestwall gypsum wall board each side of wall and fasten with G-P Bestwall 1 %' Type "G" drywall screws along edges and down the middle of 4' wide board, maintain V space from edges and ends of board. Vertical joints of the face board shall be staggered from the joints in the coreboard. Screws spaced 12" o.c. in field and at top and bottom 8" o.c. Screws driven slightly below the surface of face without breaking face paper. Where walls are erected under a concrete floor slab, a Vi" slip joint is recom mended between the slab and the top edges of coreboards and top edge of face boards to allow for building movement (see detail). NOTE: Before attaching metal runners at ceiling, floor and intersection of walls at columns, a bead of caulking should be applied in back of metal runners for better resistance to sound transmission. Joints: All joints should be taped and finished with G-P/Best wall Bedding and Topping Compound. Nails or screw heads should be finished with bedding and topping compound. Exterior angles are covered with G-P Bestwall Metal Corner Bead and finished with joint compound. The top edge of wallboard at the ceiling angle adjacent to a concrete floor slab shall be finished with flat tape and joint compound or a G-P/ Bestwall Metal Casing Bead over top edge. (See detail.) Note: This assembly with one layer */2 G-P/Bestwall Gypsum Wallboard over 1" coreboard both sides has an estimated 3hour rating and an STC of 57. For additional fire resistive ratings and sound transmission characteristics see Page F/24. OUTSIDE CORNER SQUARE NOSE SGP 0022709 HAT SECTION GEORGIA-PACIFIC/BESTWALL. F/33 G-P/BESTWALL ^CC3 3 = ory "3 r : d u c t s Laminating Compound-G-P/ Bestwall Laminating Com pound is a casein base dry powder product requiring ad dition of water only. Add 25 lbs. of Laminating Compound to 4Vj to 5 gal. of water. Con sistency of the mixed mate rials should be such that when spread over gypsum board with a 12" serrated sheet metal blade having notches :!io" wide. li.;" high. 34" o.c.. it will not self-level. Ribbons of glue may be ap plied with serrated knife or mechanical glue spreader. Coverage is approximately 30 lbs. per thousand square feet glue line. (See Laminating Compound Product Sheet BW-62675R.) G-P/Bestwall Triple-Duty Joint Compound - A vinyl base multi-purpose joint sys tem product used for all coats in the reinforcing of joints, spotting of nail heads, filling cornerbead and texturing. (See Triple Duty Wallboard Joint Compound Product Sheet GP 65240) TRIPLE DUTY ? WALLBOARD JOINT COMPOUND r G-P/Bestwall Joint System Products are designed to con ceal joints and nailheads. All have easy working character istics and very low shrinkage. L'sed in recommended joint treatments, they literally sur face weld G-P/Best*,,. sum Wallboard paa 1 r. gether. providing sm-w interrupted walls wUk " as strong as wallbr,ar4 ' Instructions are inc| each container. LAMINATING ' COMPOUND ; `.She !. G-P/Bestwall One-Day Wallboard Joint Compound is a setting type material as op posed to all other joint prod ucts which are of the drying type. It is used for bedding tape, especially with wide joints, and all coats preceding the final coat on joints, cor nerbead and nailheads. This product does not shrink. A primer must be used over One Day application prior to tex turing. (See 1-Day Wallboard Joint Compound Product Sheet G-P 65265.) G-P/Bestwall Ready-Mix Joint Compound --A prepared wet mix product which is used for taping and finishing joints, corner bead, and nail heads. It is available for hand application and for machine application. (See Ready Mix Joint Compound Product Sheet GP 65235.) G-P/Bestwall Wallboard Joint System Compound - A com pound used for both bedding and topping G-P/Bestwall Tape and for spotting nail heads. Sanding may be elim inated by careful application. (See Joint Svstem Product Sheet No. GP 65285) G-P/Bestwall Bedding Com pound -- Designed to provide maximum adhesion of tape to the joints. It spreads smooth ly. This product is off white in color. Hand or machine ap plication. G-P/Bestwall Grabit -- Grabit is an adhesive developed by G-P/Bestwall. which permits direct attachment of Gypsum Wallboard to interior mason ry 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 nor mal irregularities in the ma sonry. In 3 to 4 hours Grabit sets hard, and joint taping and finish operations may then be started. (See Grabit Product Sheet GP-65305.) G-P/Bestwall All-Purpose Compound is used for bedding tape, topping, corner bead, nail spottmg and texturing. G-P/Bestwall Topping Con pound --L'sed for finisn:taped joints and spottin: heads. Sanding is unn-fsary. Long working and : shrinkage. (See Prod'; Sheet GP 65285) )tu- -irev. t - twith Adv. G-P/Bestwall Tape-Incluskived edges and cen1.crease, this tape is rough-rfor excellent bonding qua ties. It has good porositv a: allows rapid drying ot ;o. adhesive. Stabilized aeair. varying humidity conditic- it reduces uneven expand and edge wrinkling. . .,,.r ,m< -r. w:! Pr( ha: SGP 0022710 F/34 For rated fir* rasrstive construction ust G-P/Bestwall gypsum products with G P Panaling. 5m "Georgia-Pacific Guidt to Products for Interior Paneling " ) Texturing Materials G-P/BESTWALL Specifications for joint treatment of systems partition CoiJ shine ig nad ineers. id low od UCt elude, enter henerf quali y ami joint gainst tions .nsion A. B and C are texmaterials designed to ""Suce various texture fin over drywall construcgestex A contains no '"ere"ate and can be used for Hffu hand and spray applicat0 produce textures such u -tinple. swirl, spatter and Jrange peel finishes. Bestex B " tains a small amount of egregate and produces meIVum coarse textures such as ind finishes. Bestex C conitms a large amount ot ag gregate and produces a simu lated acoustical texture fin,5), Both B and C textures are for spray application jn|y. All three textures pro duce hard surfaced, white. Ilecorative finishes that have excellent light reflective quailties and hiding power. If de Isired. Bestex A. B. and C may h* textured or can be painted with latex or vinyl paint. advantages-Bestex A. B and C. High-pigment content gives excellent hiding power Sujierior hardness and white ness Economical--excellent coverage Good water resist ance Excellent light reflec tive qualities * Can be painted with latex or vinyl paints. Product Uses*--Bestex A: For hand and spray application over ceilings and walls con structed with gypsum wallboard. Produces fine texture finishes. Aggregate may be added for heavier textures if desired. Bestex B: For spray applica tion over ceilings and walls constructed with gypsum wallboard. Produces medium coarse texture finishes. Bestex C: For spray applica tion over ceilings constructed with gypsum wallboard. Pro duces coarse texture finishes. 'Btstix A. B. and C can b ustd over k nttfior concret# jurfact* if bare mttal is nmad with a rust inhibitor (S Bastai 8. and C Product Shoot --GP 65225) Scope --All walls and ceiling surfaces are included. Fur nish all labor and material necessary to reinforce and conceal joints between gyp sum wallboards and cover nailheads in a first-class workmanship manner. ` Materials -- 1. One-Material Treatment -- G-P/Bestwall Joint System Compound. Triple Duty Joint Compound, or G-P/Bestwall Ready Mix Joint Compound. Used for bedding and for spotting nailheads. 2. Two-Material TreatmentG-P/Bestwall Bedding Com pound or G-P/Bestwall One Day Wallboard Joint Com pound and G-P/Bestwall Topping Compound. Reinforcing Tape -G-P/Best wall Tape. Apply G-P/Bestwall Wallboard Joint Compound. Triple Duty. Joint Com pound. Ready Mix Joint Compound. One Day Wallboard Joint Compound or Bedding Compound, and embed tape leaving uniform thickness of material under tape. Cover nail or screw heads in field of board at each application of material in joints. (If joints are irregular or have wide cracks in some places and boards are not in same plane apply G-P/Best wall Wallboard Joint Com pound. Triple Duty Joint Compound. Ready Mix Com pound. One-Day Wallboard Joint Compound or G-P/Best wall Bedding Compound to taper edge joints, end joints and nail heads. Shear off sur plus leaving no material on high edges. Allow 12 hours drying before taping, leaving uniform depth of taper for uniform shrinkage of joint finishes over and under tapes.) Joint Work-When Wallboard -Joint compound. Triple Duty Joint Compound, Bedding Compound or Ready Mix Joint Compound has dried completely, cover taped joints with Wallboard Joint Com pound. Triple Duty Joint Compound. Ready Mix or Topping Compound. (When 1-Dav Wallboard -Joint Com pound is used, the taped joint can be covered as soon as initial coat is set and be fore it is dry.) Shear off sur plus leaving uniform coverage over take 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 com pletely dry) cover joints sec ond time with Wallboard Joint Compound. Triple Duty Compound. Ready Mix Joint Compound, or Topping Com pound. Shear off surplus ieaving smooth, well feath ered joint. For best results and more uniform suction for decora tion. apply skim coat of Wallboard Joint Compound. Triple Duty Joint Compound. Ready Mix Joint Compound or Topping Compound over entire surface shearing off ex cess material tightly. (See Joint Treatment Product Sheet GP-65285) G-P/BESTWALL GYPSUM CATALOGS See "Georgia-Pacific/Bestwall Guide to Products for Gypsum Ceiling Sv stems" tor complete information on aspsum lath and plaster and a> psum wallboard ceiling svstems installation data and recommendations. See "Georgia-Pacific/Bestwall Guide to Firestopper Poured-in-Place Roof Decks." See "Georgia-Pacific Guide to Products for Structural Sheathing, Subflooring and Decking." See "Georgia-Pacific Guide to Products for Concrete Forms." Texturing -- G-P/Bestwall Bestex A. B. ami C can be used to produce various tex ture finishes oxer drywall construction. Be-tex A pro duces fine texture finishes. B produces medium sand tex ture finishes and Bestex C produces coarse simulated acoustical texture finishes. Bestex A can be applied by hand or spray while B and C spray application only. All provide excellent hiding power, superior hardness and whiteness. (See Bestex A. B. and C Product Sheet GP65225). Decorating -- Gypsum Wallboard properly prepared can be decorated with any treat ment ordinarily used for walls or ceilings. Surface shall be sealed with vinyl or pigmented varnish primer befor any decoration, includ ing texture. SGP 0022711 georoia-pacific/bestwall F/35 CORE WITH GLASS FIBERS CORE WITHOUT GLASS FIBERS r f) z GLASS FIBERS PROVIDE STRONGER CORES GLASS FIBERS PROVIDE GREATER RESISTANCE TO SHOCK P. 0. Box 13505. Station k Atlanta. Georgia 30324 5544 W. St. Charles Road Berkeley. Illinois 60162 600 Exchange Bank BuilcirDallas, Texas 75235 Suite 227. Officenter Buiid;-Detroit. Michigan 48235 4233 Blue Ridge Boulevard Kansas City. Missouri 64123 > Room 404. Tribune Bunding 143 S. Main Street Salt Lake City. Utah 34:01 Wilmington Marine Terminal Wilmington, Debate 19895 r v BESTWALL GYPSUM WALLBOARD THE ORIGINAL WALLBOARD WITH GLASS FIBER REINFORCEMENT LITHOGRAPHED in U s a I FI C BESTWALL gypsum division SGP 0022712 For additional "`c'^ation on quality buiifl^g ~ a>$ from Georgia-Pacit;c. ca . -c.' G-P dis tribution center or -ea'est saies of fice listed adove ~r s : ,our locai G-P dealer. Our are on dis play at over :: - ng mate rials dealers av- - York. ce sure to see - ng exhib ' at Architectu-d' *.* : - * as Cente' 101 Park A\.er-e a snmgton 0. C.. see G P -s -n.pited at the National Hc-s .c-ter