Document Da1xa9DLx5J8NQo3OngrenjM

PLAINTIFF'S EXHIBIT in the roof deck... U.S.G. gypsum concrete can be shaped to virtually any roof configuration--curves, pitches, sawtooth angles or flat. It provides the adaptability needed to design buildings of dis tinctive appearance with no sacrifice of construction efficiency. A free Computer Design Comparison Service is available to provide optimum bar joist spacing. This service may reduce in-place costs of deck and joists from 6(1 to 10(1 psf, still ob taining lowest insurance rates (see Specifications, page 15). over the deck... Gypsum concrete simplifies building design and permits use of constant height columns and level decks. Slopes for drain age are readily screeded over concrete, wood or insulated decks. A certification program assures that Pyrofill or Thermofill Gypsum Concrete meets or exceeds industry standards for dry density and compressive strength (see page 15). Pyrofill Gypsum Concrete is mill-formulated and com posed of calcined gypsum and wood chips or shavings. It is mixed with clean water, only, at the job site and poured-inplace over permanent formboards or other decks as a drainage fill. Thermal resistance (R) value is 0.67 per inch. Pyrofill complies with ANSI A59.1-1968 and ASTM C317-64 (1970) Standards. Thermofill Gypsum Concrete is mill-formulated and composed of calcined gypsum and graded perlite aggregate. It is mixed with clean water, only, at the job site and pouredin-place over permanent formboards. Thermal resistance (R) value is 0.87 per inch. Thermoftll complies with ANSI A59.1-1968 and ASTM C317-64 (1970) Standards. Not avail able north of 40th Parallel from Oct. 1 to April 1, except for use as drainage slope fill. Steel sub-purlins vary in size, weight and shape and are ' selected according to required span and loading. They provide lateral bracing, anchorage against uplift, and restrict deck movement due to temperature change. Sub-purlin spacing accommodates 24", 32", or 48' formboard widths with a slight tolerance for ease of formboard placement. Sub-purlins are spaced approx. 24%', 32%', or 48%' o.c. and are welded to the structural framing members. When 48' wide formboard is used with light sub-purlin sections, supporting steel spacing should not exceed 36' o.c. . ings up to 6'0' (see table, page 9). They offer necessary roof support over short spans for any U.S.G. poured gypsum con crete roof deck. Assemblies using USG Sub-purlins qualify for 2-hour UL fire rating (UL Designs P207 and P002). USG Sub-purlins anchor the slab against uplift forces and supply strong lateral bracing. Galvanized finish requires no painting. Quick one-weld installation eliminates usual double welds at sub-purlin ends and affords uplift resistance up to 500 lbs. with %' weld through web and flanges to framing. Other sub-purlins, neither manufactured nor sold by U.S.G., are available for heavier loads and longer spans (see page 9). Reinforcing mesh for Pyrofill is one of following types: 1. Keydeck--A galvanized wire mesh, woven with 16-ga. straight wires and 19-ga. diagonal wires. 2. 48-1214--A galvanized, welded wire mesh with 12-ga. longitudinal wires at 4' o.c. and 14-ga. transverse wires at 8' o.c. The effective cross-sectional area of reinforcing mesh placed at 90 to the sub-purlins is .026 sq. in. per foot of mesh width. U.S.G. neither manufactures nor sells reinforcing mesh. in the formboards... concealed or exposed Four U.S.G. Formboards offer complete freedom of design. They are used singly or in combination to provide insulation, fire protection, moisture resistance, pleasing appearance, economy of installation, or sound control. They serve both as a formboard for the poured gypsum concrete and, when needed, as semi-finished ceilings eliminating costs of addi tional ceiling material. Their superior fire protection makes added fireproofing materials unnecessary and often reduces insurance costs. Sheetrock Formboard is a rigid gypsum board, treated to resist mildew effectively where adequate ventilation is pro vided. Two-hour fire ratings and 46 STC are available with 2' gypsum slabs and exposed tees. Ideal for almost every roof deck need, concealed or exposed. Makes economical ceilings for warehouses, light manufacturing buildings, schools--any construction where durability and low cost are desired. USG Steel Sub-purlins are roll-formed from 16-ga., 18-ga. and 20-ga. hot-dipped galvanized metal. An exclusive light weight design provides low in-place costs for bar joists spac- Firecode Formboard is a rigid, highly insulative board suitable for 2-hour fire-rated construction. The mineral fibers will not contribute to mildew growth. Reduces reflected noise --provides performance up to 50 NRC (see table at right). Available in two types: Custom has a white factory-applied finish; used for high ceilings that require a semi-finished surface with built-in acoustical properties and good light reflectance. Economy has a natural matte surface with a medium tan color. Ideal for concealed areas where a ceiling will be suspended below the deck or where ceiling appearance is not an important factor. * Cost-saving USG Sub-purlin is ideal for short spans; quick one-weld installa tion resists uplift Asbestos Cement Formboard is a rigid, industrial type board that provides more resistance to heat and humidity than other formboards. Ideal for use on exterior soffits and above heat-producing machinery where temperatures at the board are less than 125 F. r> i/i w cn o Oj 4 n'D .'3ti! built-in acoustical performance to help meet OSHA standards As a result of the Occupational Safety and Health Act of 1970, plant management is faced with the choice of maintain ing noise levels within specified ranges, or limiting the dura tion of employees' exposure to high noise levels. Since reduced exposure has the effect of increasing production costs, every effort should be made in new plant design to limit noise levels. Another regulation requires all plants with Federal contracts over 510,000 to eliminate continuous noise over 90 dbA where workers are present. U.S.G. roof deck systems with gypsum concrete poured over exposed glass-fiber formboard offer the most economical method of incorporating a large sound-absorbent surface in new plant construction. The glass-fiber formboards effectively absorb sound and reduce reverberation. Interior noise levels can be reduced up to 7 db with these formboards, which offer .75 to .95 NRC. Glass-fiber formboards are not manu factured by U.S.G. Exterior noise is efficiently attenuated by the high sound transmission loss of the gypsum deck. Pyrofill Gypsum Concrete, poured 2lA' thick over Sheetrock Formboard, developed STC 46, three points higher than the best-rated steel deck system, as tested by Riverbank Acoustical Labora tories. See U.S.G. brochure IR-548 for complete design data on noise control with U.S.G. roof deck systems. U.S.G. formboards ?-SA Gypsum Concrete Roof Systems I 305; Gypsum decks help designers comply with OSHA requirements. They effec tively control outside noise and absorb noise created by equipment. Lightreflective U.S.G. formboards lower plant illumination and maintenance costs. : j ; I ! SHEETROCK Formboard FIREC0DE Formboard--Economy FIREC0DE Formboard--Custom Asbestos Cement Formboard formboard characteristics type thickness width length weight/sq. ft. R-value flame spread noise reduction coefficient light reflection coefficient specification compliance SHEETROCK formboard Vi' 32' up to 12' max. 2.025 0.45 15-20(1) _ ASTM C318-67 C472-70 66% Federal Spec. SS-L-30D Type V custom 1' 32' & 24' 4' to 6'8' 1.65 3.70 5-10(2) .50 65% Federal Spec. SS-S-J 18a Class 25 (noncombustible) FIREC0DE mineral fiber formboard economy */' 1* 24' 32' & 24' 4' to 6'8' 4' to 6'8* 1.05 1.40 | 2.78 3.70 0-5(2) ivi', iy*, 2* 32' & 24' 4'to 8' 2.15,2.50,2.85 5.55, 6.48, 7.40 .40 _ Federal Spec. SS-S-118a Class 25 (noncombustibie) (l) Flame spread ratings determined by Underwriters Laboratories testing. (2) Flame spread rating determined by Southwest Research institute. asbestos lormboard Vi* 32' 48' 2.4 0.06 0-5 40% Federal Spec. SS-B-755a Type U UNITED STATES GYPSUM 5 CS035 0252 r ,\*v tUadam.Partoraierf PttFATORC DImom) Psrtorttad . potato** W.J" '--A n\iJtr' '' -* h o >' ? HyC + faf and panel ceiling constructions uiing either an exposed grW or ooocaaiod Z-splioa suspension. . THMMAnau package U shipped in module* for he constructions using acoustical ceding hoard, and one when Regular Psderstad PERFATOHE UaMriontsd PERFATOHE ,\ - >* ' a* border tile or for decorative effect*. For other character istic*, see table on page 2. . .. function Fire Protection--Uie of FInr-ruled Permtun* system* elimi nates need for contact fireproofing and/or intermediate ceiling Are barriers in many.installations; Convention*! Pirfatone system rated Incombustible by AMA. Sound Ratings--Excellent absorption and attenuation; see tables, pages 4 and 5. Maintenance--Provides quick access to any plenum area: easily maintained and highly washable. . Decoration--Has 72% lighl reflectance in white; cun be painted in decorator colon with high-grade metallic paint without impairing acoustical properties, if care is taken not to All perforations, , .' limitations In areas of high humidity or where moisture might Impinge against the acoustical surface. Aluminum Pirfatonz Acousti cal Unit* with galvanized fittings should be uaod, or a different architectural design should be considered. Ratings, erection and specification of the IYrfatone system are covered in USG Folder b-1575. FtRKATQNK Accessories, in addition to pans and mineral fiber pad*, include more than $0 elements which make up the various systems available--broadest in the industry. A single specification assures tbe m of ports madd to fit andfunction together--tac runners, wire gilds, strap*, dipx .damps, spacers, wail moulding, angle*, chanaclm grid pud supports. Thermafiba* Rated UgM flxlurs Protection brings packaged convenience to jobs using USC ceiling systems, whether panel or tile. This consists of 114* thick semi-rigid mineral wool board wire-tied and suspended over fixtures. The assembly (illustrated, helow) carries U/L Labels covering hoard moduk ceiHng designs of f. I Vi. 2 and .1 hours fur which ratings have been established. It is adaptable to ocouatical tile THEMAfltCt* InuUtioa Light FUlars Protection Calling Boanli V --deaoTptlon Thro* onling board products are available from U.S.G. Lspecialized applications. --SHAFT*OCX* Ccfllag Board, non-acoustical, for lay-in pjv use in ceiling grid systems. Available in nom. 24**24' i-V 24*x4R* sizes, special sag-reshtant gypsum core with ritbr' (a) unpainted plain manila face paper, or (b) paimt* white. Three thicknesses available: H*. Vi*. H*. user"Xs__b_c_stoaHBbara. Ttu"lmcit HT nom, 24-xzc tv: 24**48*` sizes, supplied omtherr Perforated or Unpcrfontr: for lay-in use in ceiling grid systems. Square-cdfal ,r beveled (Ifi* bevel on all four sides). Perforations. 0.1V* dia.. are W*f>r p:pplr|~-- texture I ==Z-Boord, a special type W**2'xfT gypsum where an incombustible base for adhesive application . ceiling tile is required. Nailed to wood members; altcrai* bases for same application are Baxhord* and R*v : Firecock gypsum bockJng board, Shkztrock and Swr rock Ftaccoofi gypsum wallboard, Rocxlath* plaster h>< Screwed or nailed to metal channels; alternate base* 1j same application are Baxrord and Baxkjro Fitton gypsum hacking board, Shmorocic Fweoioc g>pwt wallboard. For other characterUtica, see table on Pape 2. '1 " 6. USG Metal Accaaaoriag for Callings description '... United Stale* Gypsum markets precision-made mcul aw* soriei which contribute to assured performance shot n- three Z-rsplinc suspension systems are specified: ' --Concoiled 71-Splinc --Concealed Accessible --Exposed Z-Spline ........... U.S.G. also supplies complete accessories for four V system*, described i preceding sections of this uu* Those are the Airson* Air Distribution System. MF Aw Exposed Grid System, PnrsitM Metal Pan .System. Aurauui* Ughiing-Acoustkal System. Ratings, crectur ur specification of all seven assembfios ore covered in pen.v* USG Systems Folders. For the three spline systems. rrw accessories are supplied in five group* a* follows: > Basic Cri4 Parts--1 Vi* and V4* 14 P cold rolled chrnr* lb' and 20' lengths; electro-galv. spring spacer*. 18 $ <*>dr clips, 10 and II ga. galv. clips. _- 16' and 20' lengths; cicctm-galv. spring *puocr. IX jj clips, 10 and II ga, galv. clips. C area led l*rts (nil 26 ga.)--\4* and I %' 7-+fi 10* length*, and splices; flat splines; IV4* finish chsnwfi * lengths, and splices; No. 90 dips, corner platcv toequer. . Rspcwcd Z-Sglhw Parts--26-gt. IV4* Z-splincv 10 Irrs and splices; lee and angle splinca. Concealed Accesaible Parts--Angle splines, 2.1)4' ;<*! >% length*. 12**12' Access Tile Part*--Split angles (R L-apiines. .... _ C$035 0253 ` ' S'- FIGURE 2. TYPES OF CEILING CONSTRUCTION CONCRETE JOIST AND BEAM CONSTRUCTION Vr. ..... /.A;.;. 1? 'i / / OFTEN ASBESTOS APPLIED ONLY ON UNDERSIDE OF DECK NOT ON JOISTS OR BEAMS *- STEEL BEAM CONSTRUCTION CONCRETE WAFFLE SLAB CONSTRUCTION UNIFORM THICKNESS SUSPENDED CEILING CONSTRUCTION ASBESTOS OIFO 5F.OS3