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1LAINTIFF'S EXHIBIT i-lm.. ATER1ALS BB007 0613 1 \ i i ]i i i IMPORTANT TRADE-MARK NOTICE Trade-marks of the United States Gypsum Company - are the buyer's guide to value. Below is a list of trade-marks distinguishing par. ticular products manufactured and distributed by the United States Gypsum Company. They are the exelusive property of this company and cannot lawfully be used in connection with the products of any other manufacturer. Developed in modem research laboratories, thoroughly tested in the field, manufactured to conform to the highest standards of the building materials industry, products bearing the trade-mark of the United States Gypsum Company are uniformly excellent. j j i j ] -j j j -j j 1 \V - . 'i I- ' STATe s G)YrP*SlUiMK USG Gypsum, Lime, Steel, Insulation, Roofing, and Paint RED TOP Plaster and Finishes, Lime, and Insulation ROCKLATH Gypsum Lath BONDCRETE Plaster STRUCTO-LITE Plaster CHAMPION Gauging Plaster STAR Gauging Plaster IMPERIAL Finish Plaster STRUCTO-GAUGE* Plaster COVER-COAT* Plaster SABINITE Acoustical Plaster HI-LITE Acoustical Plaster ORIENTAL Colored Plaster and Stucco Finishes PYROBAR Gypsum Partition Tile ItS-2, US0, R*. 10/33 GRAND PRIZE Finishing Lime IVORY Finishing Lime MORTASEAL Masons Lime SNOW DRIFT Hydrated Lime COLOR-RITE* Metal Lath THE STEEL HEART OF PIASTER Metal Lath TRIPLE-VENT Basement Sash TRUSSTEEL Truss Designed Studs BRACE-TITE Attachment Clips BRIDJOINT Attachment Clips TEXOLITE Paint Products DURAVAL* Rubberized Paint *AII but those trade-marks indicated by * are registered in the U. S. Patent Office. m CD O o o h0*- CONTENTS PLASTERING MATERIALS GYPSUM PLASTERS AND 3UILD!MG LiME Basecoat Plasters Finishing Plasters Finishing Lime Masons' Lime Remedies for Plaster Problems fog* 8-9 10-15 16-19 20-21 22-23 24-25 GYPSUM PLASTER 3ASES AND PLASTERING SYSTEMS ROCKLATH Plaster Base PYROBAR Gypsum Partition Tile Attachment Systems Using ROCKLATH Attachment System Using Metal Lath TRUSSTEEL Stud Partition System 2" Solid ROCKLATH and Plaster Partition 2" Solid Metal Lath and Plaster Partition 26-27 28-31 32-33 34-37 38-39 40-41 42-43 44-45 METAL PRC DUCTS Metal Lath and Accessories Aluminum Louvers and Cupolas 46-47 48-56 57-59 P tr b I i i h d by UNIT! II STATES GYPSUM COMPANY BB007 0615 5 the fireproof building material There are vast deposits of gypsum throughout the world. It is particularly common in Canada and the United States, where the mineral is converted into a wide range of useful building materials. Lath, plaster, partition tile, wallboard, sheath ing and other high quality building materials are made from properly processed gypsum by the United States Gypsum Company. These products are readily available to dealers from many U.S.G. mills located throughout the country. PLASTER LATH WALLBOARD RTITION TILE SHEATHING BB007 0617 6 \ ...GYPSUM abundant ^; ; lightweight . ; J` r--: strong' v'";.' ' fireproof ~%'y -.1 -M ju M u u m a M u im m b W K-i*W NY i V _ i By U.S.G.'s modern methods, crude gypsum is They are durable and withstand normal usage for transformed into high quality building materials. the lifetime of the building. These USG products are uniform and depend able. Rigid quality controls at every plant and frequent tests in the great U.S.G. research labo ratories maintain their unsurpassed quality. Because gypsum is adaptable, light in weight, strong, easy to handle--and because it is fireproof --it is the basic ingredient of many building materials. The remarkably light weight of gypsum building materials is demonstrated by PYROBAR, U.S.G.'s partition tile, lightest of all such masonry units. Gypsum building materials are incombustible themselves, and provide remarkable protection against fire to the other materials used in the building, as well as to the buiiding's contents. GYPSUM IS FIREPROOF--whether it be in lath, plaster, wallboard or any other form. In fact it is MORE THAN FIREPROOF--it delays the progress of fire by shielding combustible ma terials. In the language of chemistry, gypsum is hydrous calcium sulphate--calcium sulphate chem Gypsum building materials are made more than ically combined with water. This "dry water" of i adequately strong, thereby adding strength to crystallization comprises 21% of the weight of the frame of the building. gypsum. 23 BB007 0618 'IV \W " w t -VV 7 Gypsum, the fireproof building material When exposed to fire, intense heat attacks the gypsum and little by little drives the water out of it in the form of steam, a slow process known as calcination. As fire struggles to eat through a gypsum ma terial by driving off this water of crystallization, it is repeatedly attacking new layers of uncalcined gypsum. The temperature behind the material does not reach the ignition point of ordinary com bustibles until all the water in the gypsum has been released and driven off. Thus it becomes evident that gypsum is not only incombustible, but in addition it fights fire because of its reluctance to transmit heat. Think what this means as a guard for wood construction protected with gypsum board and gypsum plaster walls and ceilings. Wood ignites at about 400 F.--but as long as a saving barrier of uncalcined gypsum stands between the wood and the flames, temperatures of the framing can not become much hotter than the boiling point of water (212 F.). The framing cannot ignite os long as the gypsum protecting it is intact. Tests at nationally recognized laboratories show that wood stud partitions with Vz" perforated gypsum lath and Vi* gypsum plaster sanded (1:2) (1:2) have a fire resistance rating of 1 hour; with Vi" gypsum wallboard 40 minutes. A four-inch partition built of gypsum tile and gypsum plaster will turn back the flames for hours. The fire-fighting action of gypsum is not unlike that which takes place when a flame is turned against one side of a cake of ice. The ice melts at the point where the flame strikes it--but on the other side the temperature remains at freezing. You can hold your hand there until the wall of ice is melted all the way through. BB007 0619 8 6 *1 \ Walls and Ceilings as you want them with adaptable Lath and Plaster RED TOP plaster and ROCKLATH gypsum lath or USG COLOR-RITE metal lath are favored for fine interiors because they place no limitations on archi tectural plans and lend themselves perfectly to the best in design and construction--including the creation of curving contours and smooth, sweeping surfaces right on the job. Resulting walls and ceilings are strong, sanitary and fire-resistant. They take any form of decora tion beautifully--are easy to clean and re decorate. In the event of fire, the gypsum releases its water of crystallization when attacked by flame, retarding the fire and protecting the underlying construction. Architects, home owners and builders recognize these merits of USG lath and plaster. ROCKLATH plaster base or USG COLOR-RlTE metal lath and RED TOP gypsum plaster create fine interiors that stay fine through the years. CD OS o o -*J o Oru' O \ Gypsum Plaster :i and Building Lime STATES c r rs u m BB007 0621 redtop STRUCTOLITE GYPSUM PLASTER S| Structo-lite Pre-mixed Perlite Gypsum plaster i'.' : r ! : \j Cement plaster Mill-prepared gypsum basecoat plaster using properly : Neat gypsum plaster requiring the addition of an graded and proportioned expanded perlite aggre I aggregate and water on the job. gate. Ready to use with the addition of water only i. Use only where good plastering sand, or other good on the job. ! aggregate is available. STRUCTO-LITE Plaster is less than half the weigh! of i. RED TOP Cement Plaster is lowest in cost of the four gypsum plaster, sanded 1:3, reducing dead load. types of gypsum basecoats described on this page. Stabilized set. Gives increased fire resistance, up to It is mixed with low cost aggregate, increasing bulk twice the ratings attained with plaster and sand. j and coverage. Packed in multi-wall paper bags: 80 lb. for regular lath bases,- 67 lb. for masonry bases. I ] RED TOP Cement Plaster requires the addition of an aggregate proportioned strictly according to speci fications. Use of too much aggregate drastically ] reduces finished plaster strength. : Packed in 100 lb. multi-wall paper bags. it' , v- ~ ;i ; . Wood Fiber plas*er Mill-prepared gypsum basecoat plaster containing finely shredded selected wood fiber for use where extra strength is desired. Requires the addition of water only on the job. The strongest of the four types of basecoat plasters. Has greater compressive and tensile strength, greoter resistance to lateral impact, greater surface hardness, greater resistance to cracking. Also provides from 30% to 130% greater fire resistance than sanded plaster, and is about 25% lighter in dead load. For masonry bases only, one part sand should be added in mixing. Packed in 10 lb.--50 lb__ 100 lb. multi-wall paper bags. Factory prepared gypsum basecoat plaster specially formulated to bond with rough interior monolithic con- ' Crete surfaces. Requires addition of water only on the job. Total thickness of plaster, including finish coat, not to exceed %" on concrete ceilings, Vt' on walls. Apply only on concrete surfaces properly prepared for plastering and free from oil from form boards. Full directions are printed on the bag. Packed in 100 lb. multi-wall paper bags. CO CO o o -J jV;.-; -O ..................................... ........................... ~ O' hj fSl \ t Tiie leadership enjoyed by USG Red Top gypsum plas ters is the result of the most extensive scientific re search program in the industry, plus superior manu facturing and marketing facilities. As a result of U.S.G.'s research and development work, plasterers and contractors expect today's plaster prod ucts to he uniform, plastic and fireproof: they must be free spreading, easily mixed by hand or machine, and must provide high coverage while setting dependably to maximum hardness and high tensile strength. Red Top gypsum plasters fully meet all these require ments. The complete Red Top line offers a USG prod uct for everv plastering need. Each product more than meets applicable standard specifications. Basecoat plasters Gypsum basecoat plasters are applied to bases of masonry or lath and support the finish coat. The United States Gvpsum Company is continuing to improve these important products. New materials are tested in laboratories and in the field before being offered. Tests are made at all stages of manufacture and on finished products in warehouse stock. Special grinding equip ment has been devised to produce super-fine, easily mixed plasters having increased slip under the trowel. There are four distinct USG basecoat plasters--each designed for a specific use--each best on the market for its specific purpose. When in doubt read the instructions on the bag Red Top plasters will give the most satisfactory results when instructions are carefully followed. Observe the directions on the hags, or consult the specifications in U.S.G. technical literature. Red Top plasters are for interior use and should not be used on the exterior where exposed to the elements. Thev should not be used where contact with excessive moistureis expected, whether on the exteriororintcrior. Only Red Top Bondcrete (see page 10). or Red Top CovER-Co.tr Finishing Plaster (seepage 17). should be applied over concrete. Special care should he taken in preparing the bonding surface in accordance with directions printed on the hag. Gvpsum basecoat plasters are not recommended for application over surfaces that have been treated with asphalt or other bituminous compounds, nor lor appli cation directly over interior surfaces of exterior masonrv walls. BASECOAT The widespread usage of Red Top plasters can be attributed princi pally to these outstanding features: Made from the mineral gypsum, RED TOP plasters are incombustible, will not transmit high temperatures until com pletely calcined; actually fight fire. !r RED TOP Basecoat plasters bond firmly to approved plaster bases and are spe cially processed to receive any type of finish coat in common use. Plastic, they permit wide latitude in design of either plain or curved surfaces. I Manufactured on a nationwide basis in 22 modern mills, RED TOP plasters are held to rigid specifications. Their setting time is stabilized to minimize the hazards of impure additives, unexpected job conditions and seasonal irregularities. !rA *I IR RED TOP olasters ore made to withstand normal usage for the life of the building. (Compressive and tensile strength data Page 13.) Processed to give high coverage with minimum effort, RED TOP plasters, by their easy working qualities and addi tional bulk, assure good work at low cost for both material and labor. 03 CD O o o O' f>3 v 12 ADMIXTURES TO PLASTER s CD O o -0 o O' (NJ For ideal strength and hardness, the proper proportion of aggregate to plaster must be used SL*'>* -\>.y b *e-. -v'--;'va. ,"*'-,.V*;*,n*-.-* '. -..\>**zl*'i ^fc2t^ ;V-.:* ' Illustrations show reduced hardness with increasing proportion of sand. __ i^L12^=Arik^ESBanded>-'1^5 Recommended proportions of gypsum cement piaster to sand by weight and approximate covering capacity at recommended grounds Gypsum Plaster Base: Lati. Insulation Lath Metal Lath Brick-Clay Tile Gypsum Tile Two Coat Work Scratch Double bock Plaster 1:2 Vi -- 1:3 1:3 Three Coat Work Scratch Coal Plaster 1:2 1:2 1:2 Brown Coat Plaster 1:3 1:3 1:3 -- -- Coverage Range Sq. Yds. Per Ton 175-220 175-220 90-125 175-200 200-240 Water All gypsum plasters require the addition of water o the job. As a general rule any water fit to drink is sui able for mixing plaster. Sand Neat or gypsum cement plaster is designed to 1 mixed with an aggregate on the job. Sand is the mo; conimonly used plaster aggregate because it is ecc nomical and generally available. Proper proportioning and gradation of sand are mof important in determining hulk and working qualitie of plaster, and the ultimate quality of the finished wai. Over-sanding or the use of an excessive amount o fine sand, each reduce the strength and hardness o gypsum plasters. The American Society for Testing Materials in AST\ Designation C33-53T. "Inorganic Aggregates For Lr' In Interior Plaster", has established the followin; specifications which arc regarded as standard for tin proper cradation ol good plastcrinc atrcreaate: Percentage Retained, on :och Sieve Sieve Size Perlite, by volume Vermiculite, by volume Sond by weight Max. Min. Max. Min. Max. Min No. 4 (4760-micron)............ No. 8 (2380-micron)............ No. 1 6 (1 1 90-micron)......... No. 30 (590-micron)............ Nc. 50 (297-micror.)............ No 10C (1 t-micronl......... 0 5 45 85 95 100 0 0 10 to 75 45 95 75 9S ee too 0 05 40 30 65 65 Z5 95 90 too 0 5 30 65 ; 90 BASECOAT 13 t Lightweight plaster aggregates The u?e of lightweight aggregates is growing in many markets. When properly used their light weight, fire resistance, adaptability to winter plastering and ease of handling on the iob make them highly desirable. Perlite This is an excellent lightweight plaster aggregate, and is becoming increasingly available. It is a product derived from lava ore which is exploded under heat. Vi hen used as a piaster aggregate it must conform with the ASTM Designation C35-53T for gradation and weigh from 71-2 to 15 lbs. per cu. ft. It is generally sold in bags containing 3 or 4 cu. ft., and is mixed on a volume of aggregate to weight of gypsum plaster basis. Perlite has excellent fire-resistance qualities. When mixed with gypsum plaster it provides a plaster strength nearly equal to that with sand. Red Top Strlcto-Lite Plaster, mill-prepared gypsum plaster with selected perlite aggregate, is available in most markets. Vermiculite This aggregate is produced from a non-metallic mineral of the mica family. It is ground and exploded under heat into lightweight granules. As an aggregate for plastering, vermiculite must conform in particle size to ASTM Designation C35-53T for gradation and shall weigh between 7H and 10 lbs. per cubic foot. Vermiculite plaster aggregate is generally sold in bags containing 4 cu. ft. and is mixed with gypsum plaster on a volume of aggregate to weight of plaster basis. Walls plastered with a mix containing vermiculite as an aggregate have lower strength and require a longer period for drying than walls of sanded plaster. Recommended proportions of lightweight aggregate per IOC lbs. plaster. Gypsum, fiber insulating, or metal lath Masonry bases Scratch Coat Not over 2 cu. ft. Not over 3 cu. ft. Brown Coat Not over 3 cu. ft. Not over 3 cu. ft. Note: In two-coat plaster work over gypsum or fiber insulating lath not more than 254 cu. ft. of lightweight aggregate should be used per 100 lbs. gypsum plaster. Masonry surfaces should be moderately wetted to reduce suction. When perlite is used and wetting is impractical, amount of perlite may be increased to not more than 4 cu. ft. _- Gypsum plaster--typical strength data StructoLite Regular Formula Wood Fiber Neat Neat 1:1 : CompressiyesSfrength-- \psi (drflfc J.' 900 '7TensileStrength---- p4dry) 150 2600 2100 440 245 Sand 1:2 1200 170 Cement Plaster Vermiculite Perlite 1 00 lbs.: 100 lbs.: 100 lbs.: 100 lbs.= 1:3 2 cu ft. 3 cu. ft. 2 cu. ft. 3 cu. ft. 750 500 300 1000 650 120 130 90 165 105 BB007 0625 14 STORAGE, MIXING, APPLICATION v-- Plastering specifications may indicate either two-coat three-coat work. Two-coat work consi:` of one base cc and one finish coat, and it is generally used over a masor plaster base and over gypsum or insulating lath. In thre coat work there are two separate base coats and a fin coat; three-coat work is required over metal lath. The fi coat is known as the "scratch" coc and tne second coat the "brown" coat. > * ** Two-Coat Work . .'S Where base coats are applied by either the "single coc or "scratch-double-back", the overall plastering operatic is termed two-coat work. The baseccat plaster is applied slightly less than the thickness of the grounds and roddt and darbied to a true, even surface left rough enough iVw? take the finish coat. Three-Coat Work The scratch coat is applied to a thickness of approximate V*" over the face of the lath and then cross-raked beforei sets-to provide additional mechanical key for the brown coc The brown coat is applied directly to the set scratch coc The brown coat is used to fill out to just slightly below tf grounds and is rodded and darbied to a true, even surfoc- It is left rough enough to receive the finish coat. T c b T S B CD CD C SO O' NJ O' BASECOAT 15 t How to use Basecoat plaster Red Top plasters are the best that research and efficient Droduction methods can provide. Nevertheless, to as sure best results care and skill should be exercised in iiandling and application. U.S.G. provides detailed di rections and complete specifications for proper use of ?ach of its plastering products. Compliance with Stand ard Specifications for Gypsum Plastering of the Ameri can Standards Association is recommended. Warehousing Store plaster in a drv, well ventilated warehouse. Ro tate stocks bv shipping oldest material first. Red Top plasters are mixed lor use in the same season shipment is made from the mill. Delivering Protect plaster bags from moisture, both in transit and stocking on jobs. Wet bags cause trouble. Mixing In hand mixing, determine proper proportion of aggre gate to be used (if aggregate is required), and place aggregate and plaster in one end of box. Hoe dry from one end to the other, working aggregate and plaster to gether until thoroughly blended. Then add water and hoe plaster into the water, mixing thoroughly to proper mortar consistency. In machine mixing, put in water, then half the re quired amount of aggregate, then dry plaster, then balance of aggregate. Mix to desired consistency. Never mix plaster in dirty mixing boxes or machines. Do not prolong mixing beyond time required for uni form intermixture of the components. Keep moisture away from plaster before mixing Use only clean water - *\ Use only properly graded aggregate in..... proper proportions Keep set-up plaster out of the mix Mix no more than can be applied in one hour Do not retemper plaster that has" started to set In cold weather p-ovide continuous uniform heat above 55 F. Provide adequate ventilation to dry plaster after set. BB007 0627 16 l t\cw ,v' JVC CHAMPION WHITS GAUGING PLASTER <* < ~ :t i 1^ v. v Finishing plaster Finish coat plaster completes the architectural design and provides a suitable base for decoration. Finishes are either factory prepared, usually requiring the addi tion of water only, or they may be job mixed, involving a blend of lime putty and gauging plaster or lime putty and Keenes cement. The finish coat is applied to a thickness of W to Is". Several types of finish coat are available, each designed to serve specific requirements. Lime-Gauging Finish Coat consists of hydrated finish lime or finishing quicklime soaked or slaked to putty consistency, and blended in proper proportion with gypsum gauging plaster. For complete description and data on finishing limes, see page 20. IV! C) e ; ; 1 RED TOP' $ keenes CEMENT waTna rnt> sj LG :s. >5 IKS o SIRUCTOCAUGE ll PLASTER f umii T*TM rM csunwr f V- Available brands, setting times and finishes Brand Set with Lime Putty Red Top Champion Gauging Plaster (white) Red Top Star Gauging Plaster (white) Red Top Gauging Plaster (gray) Red Top Gauging Plaster (gray) Structo-Gauge (white) Red Top Regular Keenes Cement (whr.e) Red Top Quick Troweling Keenes Cement (white) Quick set--10-15 min Slow set--45-60 min. Slow set--45-60 min. Quick set--10-15 min Slow set--45-60 min. 3-6 hours 1-2 hours Brond Type of Finish Red Top Trowel Finish Red Top Imperial Finish Plaster Red Top Skim Coat Finish Plaster Red Top Sand Float Finish Plaster smooth smooth smooth sand float All finish plasters are shipped in 100 lb. multi-wall paper bags. Gauging Plaster. The function of gauging plaster in a lime-gauging finish is to provide initial set and strength and hardness to the surface finish. It is ground to the -1 proper fineness to blend readily and completely with the lime putty. To serve various iob and market re quirements, USG gauging plasters are produced in 2 setting times and in a choice of gray or white colors. Gauging plasters are used only with finish limes as described on page 20 in the proportion of one part gauging plaster to three parts of lime putty by volume. This is the equivalent of one part gauging plaster to two parts of dry lime by weight. Structo-Gauge is a new high strength gypsum gaug ing plaster for use with lime putty to produce surfaces of much greater hardness and durability, designed for i use in hospitals, schools and other buildings where a hard finish is desired. Structo-Gauge has excellent mixing qualities, applies easily and requires a minimum of troweling to produce a smooth finish. For "medium-hard" finish, mix in the proportion of 100 pounds of Structo-Gauge to 200 pounds of dry lime (400 pounds or 34 gallons of lime putty). For "hard" finish, mix in a proportion of 100 pounds of Structo-Gauge to 100 pounds of dry lime (200 pounds or 17 gallons of lime putty). Keener Cement is a high strength, pure white gyp sum plaster used with finish lime putty for extremely hard, dense surfaces. Keenes cement provides the strength and the lime putty imparts the necessary plasticity. When mixing, proper proportions must be carefully observed. For "medium hard" finish, mix in the proportion of 50 lbs. of drv hvdrated lime (100 lbs. or 17 gallons of lime putty) to 100 lbs. of Keenes Cement. For "hard Finish" limit the quantity of lime to 25 lbs. of drv hydrated lime (50 lbs. or 34 gallons of lime puttv) to 100 lbs. of Keenes Cement. Not more than 10 pounds of v bite silica sand may be added for each 100 pounds of Keenes Cement in above mixes. BB007 0623 FINISHING 17 miENTAL' lINTTECRDIlOllRR f* 3L0RED finish PLASTER ^ . r...u 1 Gypsum Trowel and Float Finish Plaster. Factory prepared gypsum plasters requiring the addition of water only on the job. These finish plasters have a natural bond to gypsum base coats, develop superior hardness, are non-alkaline. mav be decorated safely much sooner than lime putty finishes, and contain nothing injurious to paint or other final decoration. ORIENTAL Interior Finish Plaster. Integrally colored in a choice of 7 colors at the factory, this finish plaster requires the addition of water only. It has a natural bond to gypsum basecoat plaster, may be finely floated or textured and requires no further decoration. Colors: White Old Ivory Azure Desert Rose Pewter Groy Sahora Gold Surf Green For coverage see data below. ORIENTAL Exterior Stucco Finish. Exterior stucco finish in eleven pastel colors and white. It is uniformly pre-mixed, water-resistive, non-staining, easy to apply, and enduring. Eliminates much of the uncertainty in herent in a job-mixed stucco finish. Uniformity of ag gregate and color standards permits matching of colors between batches mixed at different times and under different conditions. Oriental Stucco sets slowly to facilitate proper finishing, minimizing unsightly streaks and shading. Will produce either period textures or smooth trowel, stipple sponge, rough coat or spatterdash finishes. Applied over a base coat of portland cement, lime and sand. Coverage approximately 150-200 yds. per ton. Colors: White Sun Ton Pewter Gray Stone Gray Eggshell Ivory Copper Rose Alamo Buff Mission Cream Cascade Green Pueblo Tan Indian Coral Rancho Brown RED TOP COVER COAT Finishing Piaster. Unlike all other types of plaster, bonds direct!v to smooth unpainted concrete surfaces and provides a smooth finish ready for decoration. Because Coyer Coat bonds directly to such surfaces, considerable time and ex pense are saved by using Coyer Coat instead of other procedures such as surface roughening plus bond plas ter, buffing plus spackling compound, or furring, lath ing and plastering in the conventional manner. Factory prepared, Red Top Coyer Coat requires the addition of water only on the job. It is applied in two thin coats to a total average thickness not exceeding Vs". Careful adherence to directions on the bag for surface preparation is necessary. Coverage, 300-700 yds. per ton depending on surface. Finish plaster cafe Gauging Plaster to Lime STRUCTO-GAUGE Plaster to Lime Quick Trowelling Keenes Gypsum Gypsum to Lime Trowel Finish Float Finish ORIENTAL Finish Mix by weight of dry materials: 1:2 1:2, Medium Hard 1:1, Hard 2:1, Medium Hard 4:1, Hard NEAT NEAT NEAT Color White or Gray (1) White White White White White White or Groy 12 Colors Finish Texture Smooth Smooth Smooth Smooth Smooth Smooth Flota Float Hardness in Kilograms {2} 34 50 70 55 (See Note 3) (See Note 3) Workability | 1 i 2 4 7 365 Coverage 1 ton gauging 1 ton STUCTO- 1 ton STRUCTO- 2 tons Keenes 4 tons Keenes 2 tons lime GAUGE GAUGE 1 ton lime 1 ton lime cover approx. 2 tons lime 1 ton lime cover approx. cover approx. 1000-1400 cover approx. cover approx. 850-1200 1300-1700 yds. I000-I400yds. 600-750 yds. yds. yds. 1 ton will cover approx. 350-400 yds. ' ton will cover approx. 250-275 yds. 1 ton will cover approx. 250-300 yds. (1) Gray with "local" gauging plaster. (2) Kilograms required to force a 1 0MM ball .01' into plaster face. (3) These are hard finishes but the aggregate in the surface does not permit an indication with this test. BB007 0629 18 II J Special plasters In addition to its complete line of wall plasters. L'.S.G. has perfected and formulated a number of special plasters for other applications. They are recognized as quality leaders in their respective classes because of the carefully controlled scientific processing by which thev are made. RED TOP Moulding Plaster--used in specialized work such as casting ornamental enrichments or running cornices. The grind is conducive to fine detail. In cast work, moulding plaster is used neat, whereas for run ning cornices a small portion of lime is used. Red Top Moulding Plaster is available in white and local, or grayish colored, grades. SABINITE and H I - LIT E ,s -L 0/ i -J 11 1 * J :;i ! ACOUSTICAL 1 plaster trowel i fmat finish | .win in'u ^ oi -VI.W'SN. acoustical puastir hhish coat yms JfiTU RED TOP Casting Plaster--for moulding done di rectly in the plaster. Results in smoother castings showing excellent detail--ideal for making fine plaques and art statuary. Art Plaster--different from any other class of plaster, being designed especially for casting novelty artware ready for painting. It contains additives to produce sur face hardness in the finished work that minimize paint absorption. Available in white or ivory colors. Dental and Orthopedic Plaster--made from selected gvpsurn and remarkably ircc from grit and oi her foreiun elements. Extremely lind grind--exceptional qualitv. These plaster* are very well known under the brand names: White i'r.vit Dental Plaster and L'SG Ortho pedic Plaster. RED TOP Partition Tile Cement--a specially prepared gvpsurn cement used uith uater and *and a.- a mortar tor settiiu; interior partitions of gvpsurn or clay tile anil gvp-um lireproolinc and column cover mu. li i:i > Ini' Par tition I ile Grmrnt makes art rasv uorkinu. economical mortar lia\ ine eariv liiuit -tnmulh that [inn ides -tronu mortar joint- lor anv non-bearinu partition tile uork. 88007 0630 ACOUSTICAL 19 acoustical plasters absorb unwanted noise...incombustible...provides wall and ceiling beauty...easily applied SABINITE Acoustical Plaster A liidilv efficient acoustical plaster, prepared to produce a continuous surface with exceptional sound absorbent ijualities, that may be either trowelled or floated. Sound absorption. With countless sound traps. Sabinite ab sorbs a high percentage of all noise that strikes its surface. Has a Noise Reduction Co-efficient of .60 (Trowel) or .55 (Float). See test data below. Fire resistance. Basically mineral, it is incombustible. Flexible in use. Like any plaster. Sabinite is adaptable to anv architectural design. Its continuous trowel finish sur face lends beauty to any decorative plan. For use on any ceiling area and on sidewalls not subject to contact. fight reflection. Laboratory tests indicate reflection of 53% for Trowel Finish and 51% for Float Finish in Oyster White. Easily applied. Sabinite is applied as a finish coat plaster and requires only the skill of a competent plasterer. Economical. More sound absorption per dollar than most other commonly used acoustical materials. Maintenance. Sabinite (Trowel Finish) plaster may be cleaned with a good putty.type wallpaper cleaner or with a vacuum cleaner using hose and brush attachments. Clean Float Finish with vacuum cleaner only. Redecoration. Sabinite may be redecorated with Texolite paint (Standard or Imperial). Apply according to U.S.G. directions. Tests by a nationally recognized laboratory showed Sabinite Trowel Finish had no loss in noise re duction coefficient alter 2 spray coatsoflmpcrial Texolite. Colors. Available in Oyster White. Colonial Cream. Antique Ivory. Spanish Buir and Cacnstone. Color samples are available on request. Over existing ceilings. Sacinite mav be applied over most existing surtaces through use of a special asphalt emulsion finudiii" coat. Refer to L.5.G. representative or to tech nical literature for data. HI-LITE Acoustical Plaster Formulated to provide excellent sound absorbing qualities and high light reflection. May be either stippled or stippleperforated. Sound absorption. HI-LITE Acoustical Plaster absorbs a high percentage of all noise that strikes its surface. Has a Noise Reduction Coefficient of .60 (stipple-perforated) or .55 (stippled only). See test data below. Fire resistance. Basically mineral, it is incombustible. Flexible in use. Generally compatible with any architec tural design, its stippled surface can be worked to most any contour, and stippling reduces possibility of trowel marks on joinings. For use on ceilings and side walls above contact. High light reflection. Laboratory tests indicate a light re flection of 75% for either stipple or stipple-periorated finish. Easily applied. HI-LITE Acoustical Plaster is applied as a finish coat and requires only the skill of a competent plasterer. Economical. More sound absorption per dollar than most other acoustical materials. Maintenance. May he cleaned with a vacuum cleaner hav ing hose and brush attachment. Redecoration. May be painted with TEXOLITE (Standard or Imperial) according to L'.S.C. directions for spray paint ing acoustical plaster. Tests indicated no loss in the Noise Reduction (Inefficient for stipple-perforated finish after 6 spray coats of Texolite Imperial. Stipple finish showed no loss after 4 spray coats of Texolite Imperial. Color. Furnished in white only. Existing ceilings and concrete. Mav be applied over most existing ceilings or over smooth concrete thrnuch use of a special asphalt emulsion bondin': coat. Reier to L.5.G. representative or to technical literature for data. SABINITE and HI-LITE Acoustical Plasters are ordered on a yardage basis . .. sufficient material is proviaed for cpplicction to c thickness of Vz inch. All standard colors are immediately available. Sound Absorption Data--tests made by nationally recognized testing laboratories. Type Sabinite Trowel Finish sabinite Float Finish HI-LITE Stipple Finish HI-LITE StipplePerforated Thickness Vi inch VMnch Vi inch Vi inch Frequency 128 256 512 1024 2048 4096 .54 .27 .47 .76 .99 .88 .49 .22 .42 .66 .83 .81 .22 .25 .47 .72 .78 .80 .20 .24 .50 .76 .83 .76 .60 .55 .55 .60 U 9 0 LOG (lit 20 \ ' '} The finest of finishing limes! Produced by exclusive U.S.G. patented process... for hand or mechanical mixer... requires no more than 15 minutes mixing on the job. Highly plastic, easy working, pure while . . . smooth, hard finish when properly mixed with gauging plaster ... requires 12 hours soaking for a plastic putty. Long known as a quality product. .. proper slaking and aging determine job results. Age at least 16 hours before using to obtain maximum plasticity. Brand Ivory .. Type Material Dolomitic Double Hydrate U.S.G. Mfg. Mill Genoa, Ohio Size Container 50 lbs. Approximate Coverage per ton 700 yds. Brand Grand Prize Red Top Red Top Type Material Dolomitic Hydrate Dolomitic Hydrate High Calcium Hydrate U.S.G. Mfg. Mill Genoa, Ohio Genoa, Ohio New Braunfels, Tex. Size Container 50 lbs. 50 and 25 lbs. 50 lbs. Approximate Coverage per ton 700 yds. 700 yds. 700 yds. Brand Red Top Type Material High Calcium Quicklime U.S.G. Mfg. Mill New Braunfels, Tex. Size Container 50 Ids. Approximate Coverage per ton . 1 000 yds. ?'}t FINISHING 21 The purpose of finishing lime is to provide plasticity and hulk to the finish coat. Lime, however, does not set. is subject to considerable shrinkage when drying, and will not produce a hard finish when used alone. For these reasons it is mixed with gypsum gauging plaster to provide hardness and resistance to shrink age. For complete description of USG gauging plasters see page 16. USG finishing limes are manufactured under carefullv controlled processes. Dolomitic hydrates from the northwestern Ohio fields, where U.S.G. operates the lamest finishing lime plant in the world, are preferred because of the high purity, whiteness, plasticity, smooth ness and excellence of the finish they produce. Since the development of dolomitic double hydrated finish ing lime there is a growing preference for this type. IVORY Double Hydrated Finishing Lime Double hydrate is the finest achievement in finishing limes. As produced by patented U.S.G. methods under the new autoclave process it produces a more than 9-/c hydrated, highly plastic putty. This permits soak ing by either hand or mechanical mixing, speeds up job operations, and assures freedom from further ex pansion due to subsequent hydration of the finish plaster. Ivory Double Hydrated Finishing Lime is the stand ard of excellence for modern, durable walls and ceilings. Smooth, easv working putty is developed without long soaking. Use 5! 2-6 gal. water per 50 lb. bag of lime, sifting the lime into the water. Mix thoroughlv in a rr.ernanical mixer: or hoe in a box. screen, and the putt' is ready for use. If overnight soaking is desired. sift lime into the water using same amount as indi cated above: screen putlv before using. For the finish coat, blend together gvpsum gauging plaster and lime puttv exactlv as shown for regular hydrated finishing lime. Meets ASTM Designation C206-49 type S, and Federal Specification SS-L-351 tvpe F, including the added requirement of not more than 8% unhydrated oxides. GRAND PRIZE end RED TOP Hydrated Finishing Lime Highly plastic, easy working, pure white, Red Top and Grand Prize hydrated finishing limes provide ex tremely smooth, hard finishes when properly mixed with gauging plaster. For proper results, soak hydrated finishing lime 12 hours (overnight) in box using 6-6I2 gal. of water per 50 lb. bag of lime. Blend together gvpsum gauging plaster and lime putty in the propor tion of 1 part gauging plaster to 3 parts lime puttv by volume (1 part dry gauging plaster to 2 parts dry lime bv weight). Meets ASTM Designation C6-49 type N, and Federal Specification SS-L-351, type F. RED TOP Finishing Quicklime. Because it is smooth, easy working and economical. Red Top Finishing Quicklime is known as a quality product. Proper slak ing and aging determine job results. Slake with 15 gal. of water per 50 lb. bag (18 gal. per 60 lb. bag), screen, and store in aging box for at least 16 hours before using. Add gauging plaster in the same proportions as with hydrated finishing lime. Meets AST.XI Designation C5-26 and Federal Specification SS-Q-351. Lime putty ring is formed and water placed in center. Gauging is sifted into water and thoroughly blended. 1 'W.fS-Ul * -L?'' a: -JaXfck'LU-''--'; I1'* oit . !t {`A r' t \\m / - ,--, iV BB007 0633 22 IV10RIASEAL ** HTDRATID MASONS f 4* LIME lama itmi tmvM ccmmry i I) J For masonry mortar, masons lime is generally mixed with Portland cement and sand in varying proportions, depend ing on the strength and work ability desired. Hydrated or double hydrated lime is also used as an admix in concrete to increase workability and water-resistance. Recommended Mortar Mixes (Portland Cement-Lime-Sand, by volume) Above grade 1-2-9 PULVERIZED MASONS > QUICKLIME .Hill IH1H rs * *i R IS Below grade 1-1-6 Specialized use Abnormal strength Excessive continuous moisture conditions 1-2-7 to 8 1-1-4 to 5 1-14-3 MORTASEAL Double Hydrated Masons Lime--I latest development in building lime. Requires no so ing as it develops its maximum plasticity immediatt Its superior working qualities, water retention pr erties and maximum sand carrying capacity assure h quality, economical masonry mortar. Mix by volu with portland cement, sand and water to sped) proportion. Meets ASTM Designation C207-49 type and Federal Specification SS-L-351, type M, includ the added requirement of not more than 89c hydrated oxides. Advantages of using Mortaseal double hydra lime in masonry mortars: Easier working -- Moutaseal transforms mixes v cement and sand into plastic, smooth-working, unifc mortar. Better bond -- Plastic Mortaseal in mortar make) easier to get full joints and maximum bond becaus* retains water remarkably well and stiffens slowly. Weather-resistant -- Full joints and proper bond h produce walls that repel rain, snow, ice and wi Lower cost -- Maximum sand-carrving capacity, 1 retempering, faster construction and easier laying-- these factors add up to lower cost for finished wa Better walls--Exceptional plasticity, remarkable wat retention, adaptability to volume changes, slow still ing and better bond--all help to produce bet masonry walls. RED TOP Masons Hydrate--The smooth working qi ities of Red Top Masons Hydrated Lime increase plasticity and adhesive properties of portland ceme lime-sand mortars. Full plasticitv is developed bv so ing to puttv overnight, usiru: approximately 6J4 r water per 50-lb. bag. Mix with portland cement, sr and water by volume in specified proportions. Me ASTM Designation C207-49 type N, and Federal Spt fication SS-L-35i, Type M. RED TOP Masons Quicklime--Uniform quality qui lime with high putty yield and excellent plasticitv. 1 proves the working quality and sand-carrying capav of masonry mortars. After slaking it is best to age p verized and ground quicklimes at least 16 hours bef< using. Mix with portland cement, sand and water volume in specified proportions. Meets ASTM Der nation C5-26 and Federal Specification SS-Q-351. RED TOP General Purpose Hydrated Lime--Sj eially processed for consumer use around the hot and on the farm. Ideal lor such purposes as soil sd cuing of lawns and gardens, whitewash, sanitate around barns, etc. Attractively packaged and shipp in convenient master containers. BB007 0634 ACOUSTICAL, FIREPROOFING & SPECIAL PLASTERS FIREPROOFI NG PLASTER RED TOP FIRECODE Plaster is applied directly to steel tloor units, beams and columns to provide fire protec tion. It is a readv-to-use gypsum plaster requiring the addition of water only. No bonding agents, lathing or hand tool operations are required in the application. It is lightweight and does not shrink upon drying. It can also be applied over metal lath to provide a fire re sistant enclosure around structural members in which piping, duct work or electrical conduits may be enclosed. FUNCTION AND UTILITY--This lightweight fireproofing plaster is used in multi-story buildings to replace heavy masonry or concrete formerly used to protect the steel structure. It greatly reduces the dead load, permitting the designing engineer to reduce costs by use of sub stantially lighter structural steel. This new concept in building design is not only lower cost, but is more flexible in design, beauty, utility and safety. Applied fireproofing costs are lower with Red Top Firecode Plaster due to its simplified application, lower material usage and higher coverage. Although Firecode Plaster is not generally considered as a fin ished surface, a pleasing spray texture can be accom plished. If desired, either Texolite Standard paint or acoustical plasters may be applied. TECHNICAL DATA Fire tests have been conducted and ratings established on many types of steel floor construction, as well as on structural steel. For details of tests and ratings, contact your U.S.G. representative or refer to A.I.A. File 21-A. SPECIAL PLASTERS In addition to its complete line of wall plasters. U.S.G. lias formulated and improved a number of special plas ters for other applications. They are recognized as quaiity leaders in their respective classes because of the carefully controlled scientific processing by which they are made. RED TOP MOULDING PLASTER --Used ir. specialized work such as cast in ornamental enrichments or running cornices. Tiie grind is conducive to fine detail. In cast work, moulding plaster is used neat, whereas for running cornice? a small portion of lime is used. It is available in white and grey colors. RED TOP PARTITION TILE CEMENT --A specially prepared gypsum cement used with water and sand as a mortar for setting Pyrouar Partition Tile or clay tiie. Red Top Partition Tile Cement makes an easy working, strong, economical mortar having early high strength. RED TOP CASTING PLASTER--A special plaster for gen eral casting shop use. It results in smooth casts which show excellent detail, making it ideal for fine plaques and art statuary. ART PLASTER --Different from any other type of plaster, it is designed especially for casting novelty artware ready for painting. It contains additives which produce surface hardness in the finished work that minimizes paint absorption. Available in white or ivory colors. DENTAL AND ORTHOPEDIC PLASTER--Special products marie from selected gypsum to insure freedom irom grit and impurities. Their extremely fine grind and other exceptional qualities make these fully suited for medicai and dental use. These plasters are very well known under the brand names: White Star Dental Plaster and USG Orthopedic Plaster. 24 3B007 0636 Because of variations in ncrket practices, occ;regoles, plasier bases, weather and workmanship, this chart has been prepared to nssHt in ttir- understanding, diagnosis and treatment of job problems. SYMPTOM- CONDITION MATERIALS CAUSE REMEDY OR PREVENTION CRACKS 1. Connected vertical and horizontal cracks at somewhat regular intervals, often in "stepped" pattern. 2. Cracks around and over openings. 3. Fine crocks, random pattern usually less than 12* opart. Mop cracks Crazing Chip crocks Fine cracks Plaster over ony sheet lath: fiber, metal, or gypsum. Ploster too thin. Weak plaster. Lath not properly applied. Piaster over brick clay tile, gypsum tile or cement block Plaster over gypsum lath ond other boses. Cracks in gouged lime putty over gypsum base coot. Cracks in base coat over brick, clay tile, gypsum tile or cement block. Lintel construction is poor. Improper door buck construction. Ploster too thin. Weak plaster. Failure to use Striploth. Expansion of wood frames. Insufficient gouging plaster. Base coat too dry when finished. Insufficient trowelling. Slow set gauging plaster. Shrinkage due to high suction. Undersanding of base coat. Apply another coot of ploster. See "Weak Soft Walls" opposite page. Apply Metal Loth and replaster. Remedy--patch. Prevention--follow manufacturers* specifications. Apply another coot of plaster. See "Weak Sofi Walls" opposite page. y Cu? out ond repair. { Prime fromes--cut basecoat free of ground. f | Strip nff finish and replaster wilh correct mix. Strip off finish and refinish over partially dry bosecoat. y Water trowel sufficiently. ; ! Aad moulding piaster or accelerator to gauging Spray water on masonry to reduce suction. ^ Remove ploster and replaster v-it.. correct mix i after oc.usting suction. 1 4. Crack at wall or ceiling angles. Plaster over gypsum lath. Plaster over brick, clay tile Thin piaster coot, or failure to use Cornerite, or poor lumber in framing. Failure to wedge at ceiling, or to Cut out ond patch. Add Cornerite if possible. ,* Prevent by correct construction. ^ or gypsum tile. interlock or tie walls together. 5. Ceiling cracks not due to any of the above causes, or to structural failures. Plaster on metal lath or gypsum lath. Plaster on metal lath or gyp* sum lath on channel frame. Metal lath too light, not lapped or not properly tied. Thermal shock. improper spacing of channels. Thermal shock. Prevented by following manufacturers' specifications. Control job temperatures from sudden change. Prevent by proper spocing. Prevent by job temperature control. 1. Water soluble mildew-like fuzz on surface generally white but may be colored. Can be brushed off. Base coat or finish plaster over concrete, brick, or clay tile. Efflorescence. As masonry units dry out, water-soluble salts from the masonry ore being deposited on the surface of the plaster. Eliminate source of moisture, furr, lath, and repiaster. COLORS 2. Streaky discolorations. SURFACE: STAINS' and; BLEMISHES? 3. Streaked--joinings show. "Slobbers." 4. Light and dark spots due to causes other than "dry out." Lime finishes gauged with gauging plaster or with Keenes Cement. Gypsum trowel finish. Float finish. Lime and gauging not thoroughly mixed. Too much water used in trowelling. Efflorescence from mosonry. Dirty tools or dirty water. improper trowelling--too much water on brush. Dirty water. Improper floating or too much water used in floating. Variable suction in basecoat. i Prevented by thorough mixing. Remedied by poin ! with white TEXOLITE Impend or Standard Point. Paint with white TEXOLITE Imperial or Standard Pi See condition 1, above. Wash tools and obtain clean water. Remedied by painting as above. Paint with white TEXOLITE Imperial or Standard P< * Point with TEXOLITE Imperial or Standard Paint : to get uniform color. Dampen basecoat uniformly. 5. "Pops" -- peak-like projections which fail out making litlle craters or pits; often with fine radial cracks. 6. Same os (5) above except pit is discolored ton or areenish tan. j Lime base coats and finish, j i Gypsum base coats and finishes. Unslaked lime in mortar which slakes and swells after if is applied. Retarder spots. Lumpy o* undissolved retarder added at job. Retarder lumps swell or "pop" when wet. Remove core of "pops" and potch. Prevented by. using double hydrated lime. -- ''1 St Cut out spots end patch. Prevented by screening > retarder thru 40 mesh screen. i i 7. Blisters (do not confuse Gauged lime putty finish. Bose too green, insufficient suction; or too much water used in trowelling. After finish has "set," trowel with very little water. ] : with (5) above). Finish lime too plastic. Cut putty with small amount fine white sand or j increose amount of gauging plaster. Gypsum trowel finish. Base coat too wet when finish applied. After finish begins to "set," trowel with very little water. v 8. Uneven color (not due to texture shadows). Interior colored plaster finishes. Uneven absorption of base coat, or too much water used in finishing, or dirty box and tools, or variation in water content of successive batches. Prevented by following specifications. Remedied t pointing with TEXOLITE Imperial or Standard PaW i Finish not dry. Ventilate to dry well properlv. 9. Uneven color--light, or "flat" spots in light colors (See 1 3 below). 10. Uneven color--dork colors. Oil paint over gouged lime putty finish. Any colored paint over any plaster finish. Pointed too soon after plastering (alkali in lime saponifies paint); or, pigment not lime-proof. Color variation due to non-uniform absorption. Binder strikes in unevenly. Contaminated sond. Repaint with USG Piaster Secier and TEXOLITE Imperial or Sva^dard Paint. Apply USG Plaster Sealer and repaint. Prevent by using clean sand. 1 1. Yellow surface stains-- Any finish over any plaster Burning green wood in fireplace. Improve draft to stop smoke. -- "yellowing." base. Open gos heaters not vented to Vent heaters to outside. j outside. Tar paper back of ploster base. Use asphalt paper. Avoid source of oir Creosote treated framing lumber, tar, contamination. .^1 - or tar derivatives used around job. Seal with USG Ploster Sealer. Redecorate. 12. Paint peels (new workj. Oil point over ony finish. Weak finish (worked thru set). Fateh with potching plaster and paint with TEXOLITE Imperial or Standard Paint. Ploster not d'y when painted. Repair.: after areas are completely dry and loose point removed. 13. Pcr` peels (old work). Any paint over ony fimsr.. Previous coats oi calcimine net j Wash thoroughly Point with TEXOLITE REMEDIES 25 BB007 0637 SYMPTOM* CONDITION 1. Soft, white, cholky surfaces, occurring during hot, dry weather, usually near openings. MATERIALS Gypsum bose coat over any plaster base. 2. Soft, dork, damp surfaces occurring during damp weather. Gypsum base coat over ony plaster base. 3. Soft (exactly as 2 above), but occurring in freezing weather. 4. Soft, weak wall. Condition general--not spotty nor due to slow set. 5. Soft, weak wail. Gypsum bose coat over any plaster base. Gypsum base coat over any plaster base. Gypsum trowel finish over any bose coat. 6. Soft, week wall. 1. Separating from plaster base. 2. Separating from piaster base. Gauged lime putty finish over any base. Gypsum piaster over gypsum lath or fiber insulating lath. Gypsum plaster over metal lath. 3. Separating from plaster base. Gypsum plaster over mosonry. 4. Separating from plaster base. 5. Finish separating from brown coat. Gypsum plaster over concrete. Gypsum bond plaster over concrete. Gauged lime putty finish over gypsum brown coat. 6. Finish separating from brown coat. Gypsum float and trowel finish over gypsum brown coat. 7. Finish separating from brown coat. Colored interior finishes over brown coat. 1. Soft wails for over 6 hours after application. Gypsum base coot over any plaster bose. "SET" and: 2. Sets in box or sets on wall before it can be darbied or WORKING: straightened. QUALITIES^ Gypsum base coot over ony base. 3. Works hard or "short." Will not spread. Does not carry proper amount of send. 4. Works hord or '`short." Will not spread. 5. Tough and short working, rubbery or lumpy lime putty. Gypsum base coat over any plaster base. Gypsum base coat over any plaster base. Gauged lime putty over gypsum bose coat. ; 6, Lack of uniformity in set. 7. Finisn works hard. Gauged lime putty over gypsum base coot. Gypsum finisr.es over bose coot. CAUSE Dry-out. Too much ventilation has re moved water before plaster could set. Sweat-out. Too little ventilation has allowed water to remain in wall after plaster set. Some of plaster has re-dissolved. Frozen plaster. REMEDY OR PREVENTION Remedy--Persistent spraying will set-up the dry out areas. Prevention--Screen openings in hot, dry weather ond spray during setting period if necessary. Remedy--Dry the walls with heat ond ventilation. Prevention--Heat and ventilate as soon as piaster has set. Ciose building, supply heat. When plaster has set, continue heat and ventilate. Use of too much aggregate. No remedy. Prevent by use of proper amount of aggregate. Dry-out or retempered finish. Insufficient gauging plaster, retempered material, or insufficient trowelling. Too much aggregate, freezing, or addition of lime or portland cement. If dry-out treat as condition (1) above. Trowel well when set. If retempered, no remedy except teor off and refmish. No remedy except to remove finish and replaster. No remedy except to repiaster. Too much aggregate. Freezing. lock of fiber. Excessive suction. Masonry non-absorbent; has glazed surface. Efflorescence. Use of ordinary gypsum plaster. Surface oily, too smooth, dirty, or efflorescing. Brown coat too smooth, too dry, too wet or too weak; finish improperly applied; incomplete hydration of finish lime. Brown coat too smooth. Brown coat too dry. Brown coat too weak. Finish improperly applied. Brown coat not broomed. Thin finish not ground in. Brown coat too weak. Dry-out, sweat-out, frozen plaster, over-sanding, sand too fine, or dirty sand. Slow set due to error in manufacture. Slow set due to poor sand or poor water. Quick set due to dirty water, tools ond mixing equipment. Mixing too long. Quick set due to poor sand. Quick set due to error in monufocture. Quick set due to machine mixing. Aged or bodly stored plaster. Replaster with correct mix. Thaw ond allow to set and dry, or replaster. Replaster with more fiber added, or use extra fibered plaster. Dompen masonry surfaces. No remedy. Prevent by hocking masonry surfoce. Eliminate source of moisture. Furr, lath and replaster. Remove and replaster with &ONDCRETE. Remove plaster. Clean and roughen surface. Replaster. Where brown coat is cause, strip off finish, correct condition of brown coat and replaster. Where finish is cause, refinish properly using completely hydrated lime. Roughen brown coat. Dompen brown coat until half green. Strip down to lath and replaster. Apply as directed. Roughen brown coat and refinish. Finish following application directions. Correct condition of base coat and re-finish. See ``Weak, Soft Walls" above. Send samples to manufacturers' representative. Obtain good sond and water or accelerate plaster. Use clean water, tools, equipment. Reduce mixing time. Use good washed sand or add retarder. Add retarder. Send samples to manufacturers' representative. Add retarder. Get fresh plaster, or use equal parts fresh and aged plaster, or use less sand. Over-sanding. Correct conditions using proper proportions. Old material partially carbonated; warehoused too long. improper soaking, aging or slaking. low temperatures. Unusual temperatures. improper gouging. Mixed too stiff. Base too dry. No remedy. Can be used for masons lime. No remedy. Prevented by proper preparation. Do not soak at temperatures below 40 F. Use quick set gauging or heat building in cold weather. Use slow set gouging in hot weether. Use proper type ond amount of gouging ploster. Use more water. Apply to half green base. Spray dry bose 26 i' S. .'Vyy&: - . :S ' vr ; ' Gypsum Plastering Bases and Plastering Systems tried and tested essentials for successful wall and ceiling construction Covered up, hidden from sight by base coat plaster, finish coat and decoration in the com pleted job, the plaster base and the partition structure must be RIGHT or the job may go wrong. Through almost fifty years of constant research, the United States Gypsum Company has devel oped the plaster base materials and partition construction methods best suited to every situation. ROCKLATH plaster base--plain, perforated or insulating--is today the most widely used plaster ing base. Metal lath--including USG COLORRITE metal lath--is second in variety of uses and volume produced, (see next section for complete data on USG Metal plastering bases). PYROBAR, precast gypsum partition tile, precision molded and 30 to 50% lighter than comparable products, is the ideal partition and plaster base material for some types of installation, such as large office buildings. Hollow partitions for concealing pipes, ducts, etc., are best made by USG TRUSSTEEL Studs supporting USG COLOR-RITE metal lath or ROCKLATH. For maximum savings in floor space, the USG 2" Solid Partition Systems are increas ingly favored by progressive architects and builders. There is a tried and tested USG wall construe- C5 tion system and material for every type of job. -4 o O' UJ 00 Gypsum Paster Bases and Plastering Systems 'X iI ' , i ?* STATES TS|iMT BB007 0639 28 1 Application of 16" x 48" ROCKLATH plaster base! i ' ;.v S' .J obtained | with ROCKLATH plaster base: T. - 1 Fireproof--Rockuth has a gypsum core which is in- combustible. Perforated ROCKLATH, with Vi" of gypsum i | plaster sanded 1:2; 1:2, is used for partitions where j one-hour fire ratings are required. v .. . ^ | Resistance to sound transmission--Wood stud partitions with ROCKLATH and gypsum plaster on both sides have a favorable Sound Transmission Loss rating. For unusual resistance to sound transmission see ROCK- LATH Resilient System, pages 44-45. . - "" j r Strong Bond--The bonding strength of gypsum plas- - . . . j ter to Rockuth is unusually high--far higher than is 'j required to meet adequate construction standards. Structurally Strong---The large units of Rockuth plaster base add appreciable resistance to lateral dis tortion of the framing members, and when plastered the construction gives high transverse strength between from- ing members. ' j ; Durable--Gypsum, a mineral, is not harmfully affected by time, decay, dry rot, or normal moisture, and does not attract vermin. Economical--Rockuth is low in cost. Labor cost is low because the large units are quickly erected. Less basecoat plaster is required--approximately 45% less than with metal lath. Nail-on Construction ROCKLATH shall be applied with its face side out and; with the long dimension at right angles to the framingi members. End joints shall be made to fall on different' supports in alternate courses, or the lath shall be erected. so that end joints are made continuously on one sup port. In the latter case, the continuous joints shall be covered with 3 inch 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. Space nails approximately H" from the edges and ap proximately 5 inches apart, using four nails per lath per support. (For J4" Rocklath with supports more than 16" o c. nails must be spaced approximately 4 inches apart using 5 nails per lath per support.) Cut accurately and fit Rocklath neatly around all electrical outlets, etc. All internal angles shall be reinforced over tiie Rocklath plaster base with cornerite stapled to the Rocklath. Corner bead shall be applied to all exterior angles in a similar manner as for cornerite. }s" Rocklath is designed for application to studding or other supports not exceeding 16" on centers. Use W Rocklath for framing members over 16" and up to 24" on centers. Rocklath, a gypsum plaster base, is for use with gypsum plaster only. It is not intended as a base for the application of lime or portland cement plaster. Insulating ROCKLATH plaster base is manufactured by attaching a sheet of bright aluminum foil to the back of plain 16" x 48" or Long Length Rocklath. This lath, with the foil facing the stud space, has all of the advantages of plain Rocklath listed below, plus insula tion against heat and cold. It also provides an effective barrier to the passage of water vapor. With a ?4-inch air space next to the foil, Insulating Rocklath plaster base offers thermal insulation equiva lent to that of 12-inch fiber insulation board. Ah; linum foil is one of the best vapor harriers known: its use on the back side of Rocklath on all exterior walls and ceilings will effectively safeguard against harmful con densation in stud spaces. Such condensation can ruin or damage interior decoration, cause exterior paint failure, and possible rotting of framing members. 55007 0640 nri mm ........ 'inn " l ROCKLATH plaster base is a gypsum lath made in broad flat units. The fibered gypsum core is faced on sides and long edges with specially manufactured paper. Rocklath has an incombustible gypsum core, and will not transmit temperatures much in excess of 212 F. until completely calcined. Tests by the National Bu reau of Standards show that gypsum plaster bonds with Rocklath with a factor of safety of 144; a pull of 864 pounds per square foot is required to separate plaster from gypsum lath. The low cost of Rocklath, its ease and speed of erection as wrell as the savings in plaster it permits, have made this plaster base the standard of value throughout the country. Sizes--16 x 48 inches, ^ or H inch thick. (Also made 16H" wide in Pacific Coast areas.) Packaged 6 pieces or 32 square feet per bundle. (Packaged 5 pieces, 3 sq. yds. per bundle in Pacific Coast areas.) Perforated ROCKLATH plaster base is identical in all respects with plain Rocklath, except that perforations are provided at regular intervals. These perforations allow the applied plaster to ''mushroom" through the holes and form rivets to mechanically key the plaster to the Rocklath, thus effecting both a mechanical and a suction bond. As a result of this dual bond, bearing partitions built of wood studs, perforated Rocklath and gypsum plas ter sanded 1:2; 1:2, received a fire-resistive rating of one hour in tests conducted by the National Bureau of Standards. Perforated Rocklath plaster base is cut, fitted and applied with all of the speed and economy of plain Rocklath. However, the perforations in perforated Rocklath encourage application of the proper thick ness of plaster and reduce droppings and wastage. Sizes and Packaging--Same as Plain Rocklath. Long Length ROCKLATH plaster base is manufactured for two specific purposes: 1. For use in the 2-inch Solid Rocklath and Plaster Partition System. This Rocklath is !> inch thick. 24 inches wide, and comes in ceiling height lengths up to 12', with longitudinal \ -joint edges. For a complete description of this studies*, non-load bear ing partition system, see page 12 of this Directory. 2. For use on furred masonrv walls. Long Length Rock lath is manufactured :V' thick. 2-1" wide, square edged, in ceiling heiaht lengths up to 12 feet. Long Length Insulating Rocklath. manufactured in the same sizes, has a sheet of bright aluminum foil laminated to the back side at the mill. ROCKLATH 29 B80C7 0641 30 INSULATING ROCKLATH \ me-': jl0 fr.i : .-A' M:;'W ?r : fe\". ViTp A fireproof gypsum loth with all the advantages ..-v of plain ROCKLATH described on page 28. . -1 Effective insulation against heat and cold. x- A superior vapor barrier that helps keep harmful . ^ quantities of moisture from entering wall spaces, thus saving the framework from damaging con- ; densation. --T Y> " economy in building. Loth, insulation and vapor barrier applied in one operation. Application To function effectively as insulation, Insulating Rocklath plaster base should be installed with at least a W air space between the inner wall and the outer wall. The aluminum foil faces the outer wall. Otherwise 16" x 48" Insulating Rocklatii is applied in the same manner as plain or perforated Rocklatii. See page 29 for application directions. Where to use Insulating Rocklatii is used to provide thermal insu lation in exterior walls and top floor ceilings, effectively retaining much furnace heat in winter and reflecting a high proportion of sun's heat in summer. For these reasons it is used in all climates. Insulating Rocklatii plaster base provides an effi cient vaoor barrier, and for that purpose is recom mended for all exterior walls and ceilings in climates where below-freezing weather occurs for extended periods of time. Jr .... Does not "store up" as much summer heat.; ...Meets normal lending requirements of FHA/; - banks, building and loan associations,' andxjjj other sources of mortgage funds. . . . Has great fire resistance is incombustible. because gypsumjy|f v - ~ . . . Is not harmfully affected by time, decay, oryfs normal moisture conditions . . . has endurance similar to that of the mineral gypsum in itsjj|j natural state. ;V nw| .. . Resists corrosion. There's little loss of efficiency'^ through the years with Insulating ROCKLATH ,i|? -- because the aluminum foil adequately re- tains its ability to resist vapor and reflect^ heat. Insulating ROCKLATH piaster base will continue to provide protection for the life of T; the building. < yfx?; .. . Has negligible expansion as compared to Tc, other normal insulating laths. ;! !'?f 8B007 0642 i : ROCKLATH .' 31 \ Protection Against Condensation Moisture is dangerous. Condensation of moisture in exterior walls is a common cause of peeled paint, warped siding, rotted studding. During periods of low winter temperatures, as much as 2? 2 gallons of water a day may condense in each 1000 square feet of exterior wall that is not protected l>v a vapor barrier. Insulating Rocklatii prevents up to 95% of this condensation. A sheet of aluminum foil laminated to the Rocklatii plaster base at the mill keeps most of the warm, moisture-laden vapor within the house during cold weather. Tnis aluminum foil is one of the most efficient vapor harriers known! During the winter season, moisture within the build ing is needed to maintain proper, comfortable humidity --and propertv owners can't afi'ord to risk the damage that may result if this water vapor is allowed to escape and condense in exterior walls. Comfort and Economy of Insulation Insulation keeps homes warmer in winter, cooler in summer--more comfortable all year 'round. The greater comfort enjoyed in a house protected with effective insulation is one of the reasons such houses are worth more than houses that lack this protection. And--it always costs less to heat the insulated house! In most cases, the cost of insulation has been more than paid for by the savings in fuel bills over just a few years. In summer, it makes interior temperatures as much as 15 cooler. W hen properlv installed with at least a If-inch air space next to the foil. Insulating Rocklath plaster base lie- the same insulating value as a full half inch of fiber ini-ulating board similarly installed. WTien used on horizontal surfaces, its insulating value is increased more than 3 times in retarding downward flow of heat --an important feature when insulating ceilings against summer heat! It is one of the least expensive tvpes of insulation, because the insulation is installed with the plaster base at no added installation cost. It lasts the lifetime of the building! Insulation for Solid Masonry Exterior Walls In a masonry wall of conventional construction where 1-inch furring strips are used, there is no room for bulky blanket or batt type insulation. With Insulating Rocklath plaster base, positive insulation of proven value can be provided in walls of this type and the plaster base, insulation, and vapor barrier are installed in one operation, at one application cost. Insulating Rocklath is a practical wav to insulate as well as provide a proper vapor barrier lor masonrv walls. i-,^1.;.', v.-SLC"'-*`'-"- `''.tL A." A:,,;: A lin ii a si - aJy-?' 4? J Vi4 \ < III t 1;r | t If 4 (o) Water vapor readily A'sc passes through unpro- . '- .'. V vents passage of harmful . ; : I exterior walls. : quantities of water vapor.; :;AA' "V.: > - ^ rv'jf : (a) Unprotected home (left) releases heat in all directions.Insulated home(right)retoins heat--fuel - is used to heat the house, not the neighborhood1 ............. r- < (b) Sun's heat readily penetrates uninsulated .- Insulating Rockiath is a practical insulation for solid masonry wallsl 8B007 0643 ;: d i d >*j />', ! o .;. . -j *K: . '*?*. * .-`.t*1' r rr* ;-..y - .'';:' j; . ' o/J P -'P. ;...; ' vV;.- VP '- .yVcVVeVA' ' :~3 -v,.;::: .-;-1 \W. N',;u :c: * ri n :tCl -'. f !( s OI ' 1r y" ^ **!y 1y. j 1. Fireproof--Fireproof, ratings are shown in i data table opposite/'^y.jjts'^.'L^ vl :-:3 2. Lightweight--30 per cent to 50 per cent .... 4 - lighter than other commonly used masonry units. y i. See table on opposite page, 1 >- 'V' 4 3. Plaster Bond--A safety factor of 173. 4. Saves Plaster--Large size machine-moulded units lay up accurately. Grounds are Vi inch in stead of Vi inch or % inch.'.YV-- 5. Resistant to Sound Transmission--See table opposite. \ .-i..- -'-r .r7.\ V ' ~ 6. Low in Cost Because: Material cost is low-- y --large units lay up fast--light weight--fewer joints--ease of cutting reduces waste. /. ' / . Pvrobar is a pre-cast gypsum tile for building n< load bearing fireproof partitions. The surfaces are dented to receive plaster. Because of the natural af] ity of plaster for Pvrobar. the bond has a saf factor of 173. I vrobar is 30 per cent to 50 per cent lighter tl most masonry partition units of approximately eq thickness. This light weight results in reduced hand! costs in the wareiiouse and on the job. Of even area importance, partitions built of Pvrobar require 1 structural steel to support them. Because Pvrobar is machine molded, the edges a surfaces of each block are straight and true. The bice can be laid up accurately to a straight line. The large units (21 a square feet of wall surface ] side of each tile) lav into a wall fast, further reduc labor costs. Since larger blocks mean l-wer joints, to 40 per cent of tie mortar ordinarily used ii: masonry partition is -aved. Fixtures, such as sinks, etc., are easily attached w bolts and large steel washers on both sides. The br are set before the partition is plastered. Pvrobar can easily be cut on the job with a sr. thus reducing waste. In buildings requiring const; alterations to suit tenants' needs, such as office bui RECOMMENDATIONS Use only RED TOP Cement Plaster for plaster ing PYROBAR and RED TOP Partition Tile Ce ment for mortar. Portland Cement and lime mortars do no* bond adequately with PYROBAR and should not be used witn this product. PYROBAR should not be subjected to ex cessive water or moisture. BB0C7 0 644 t mgs, Pykobar is the ideal partition material. Because Pykobar can easily be cut and fitted on jobs of any tvpe, it has been the accepted material for non-load bearing partitions for many years. Erection Only Red Top Partition Tile Cement should be used for mortar. Mortar should be sanded 1:3 by weight and should never be retempered. Lay first course with core boles horizontally by bed ding in mortar. Lav succeeding courses in W' mortar beds, with vertical joints staggered. Anchor partitions to intersecting masonry walls with wall ties, or by in terlocking tile on alternate courses. Wedge tightly at ceiling and slush full with mortar. All chinks and crevices should be slushed full with mortar. Wood nailing blocks should be nailed to one end at each tile, before setting into wall, wherever lightweight fixtures or heavy trim, etc., are to be attached. Heavv fixtures should be secured to Pykobar parti tions with bolts, set before plastering, using large steel washers on both sides. PYROBAR 33 PYROBAR Partition Tile--Data Size of PYROBAR Partition Tile 2" x 12' x 30' Solid 3' x 12' x 30' Hollow 4" x 12' x 30' Hollow 6' x 12' x 30' Hollow Approx. Weight Per Sq. Ft. Limiting Partition Height Partition Tile Portition Weight Plastered(l) Partition Tile Cement Required Per M Sq. Ft. Tile 10 ft. 13 ft. 17 ft. 30 ft. 10.0 lbs. 9.5 lbs. 13.0 lbs. 20.0 lbs. 20.5 lbs. 21.0 lbs. 24.5 lbs. 32.0 lbs/ 500 lbs. 700 lbs. 900 lbs. 1300 lbs. . Avg. Sound Transmission Loss in Decibels Plastered 2 Sides / 39.2 Db. (2) 42.8 Db. (2) - -- - Fire Ratings ' yj "/v'ye ? '/'..''''f .,'3 ' A 1 hr. (no plaster) ... A d 3 hrs. (Plas. 2 sides) - li _J4 hrs. (Plas. 2 sides) 5 hrs. (Plas. 2 sides) (3)_j (1) Plastered portltion weights include plaster on both sides of solid and hollow tile. ' ' ~~ ' (2) When furred, one side only, with USG No. 500 Resilient Clips supporting metal lath ond plaster {olher side plastered direct), average transmission loss is 57.6 decibels. See TR6M 44, National Bureau of Standards. - ' vV (3) Caludated. - ' -? r. BB007 0645 BRIDJOINT Lathing System The Bridjoint Lathing System uses Bridjoint clips to apply Rocklath plaster base on walls and ceilings, and is so designed that the ends of the lath fall between and not on the framing members. This system can be used with Plain, Perforated or Insulating Rocklath plaster base. Removal of the lath ends from the framing members increases the resistance to cracking at the most vulner able points. Because lath ends meet between studding or joists, framing members need not be exactly 16" o.c. Lath ends are not nailed -- system can be used with nailable steel joists or studs. Twenty-five per cent less nailing is required! Cornerite and nailing in the corners is not required. Total cost is only slightly above that of regular nail-on construction. Approximately four B-l Clips per yard are required. Multiply the lineal feet of ceiling and corner angles by 0.75 to determine number of B-2 clips. B-l Clips The B-l Clip is used in the field application of Rocklath with the Bridjoint System. End joints of the lath should fall between framing members. Adjacent lath are attached to each other by the use of the B-l Clip. This clip is also used for the Brace-Tite Lathing System, as described on the opposite page. B-l Clips--packed 500 per carton. B-2 Clips The B-2 Clip is used for internal and external angles formed bv walls and ceilings. Secure the end joints of the lath at internal and external angles with the B-2 Clip, but do not nail to the framing members. For ex ternal angles, corner bead should be stapled to the lath. Do not nail the corner bead to the framing members. B-2 Clips--packed 500 per carton. BRACE-TIT B-1 Field clip B-2 Corner clip 3. Loop end of field dip is hooked over channel. On f. *st cours loth, field dip is crimped to take up slock due to starter clip prof* ing out from wall. A B-l dip is used at each end joint os sh* BB07 0646 BRACE-TITE AND BRIDJOINT 35 Lathing System for attaching Roc -ATH plaster base to suspended ceilings A* 4. Uses standard materials and tools 5. Adaptable ~ 5. Plaster reinforced 7. Economical [-[': CV: , 2. Complete--U.S.G. provides all materials . end joints of loth are staggered to fall between channels. B-1 lips are used on both sides of lath end joints. As courses are com:?ted, a B-1 clip is slipped over each end joint for firm support. 5. Only first course of lath requires crimping of wire. Other courses are rapidly applied by looping field clips over channel and insert ing hook into the eye of the preceding clip. 1. BRACE-TITE Field Clip BT-1 2. BRACE-TITE Acoustical Clip BT-A 3. BRACE-TITE Starter Clip BT-2 Description The Brace-Tite Lathing System is a mechanical attach ment of Rocklath plaster base to standard metal grill age (using H" cold rolled channels spaced not over 16" o.c.). The field clips, attached to H" channels, support the Rocklatii across the full width of the hoard. The spring action of the field clip pressing against the width of the board further increases its rigidity. The Brace-Tite System is easy to apply. The loop of the Brace-Tite field clip is dropped over the channel, pressed up against the lath, and hooked into the eye of the preceding field clip. Only three field clips, plus two USG Bridjoint B-1 Clips, are required per sheet of Rocklath plaster base. Anv standard H" cold-rolled channel may he used on conventional 12" or 16" centers. Plain, Perforated or Insulating Rocklath plaster base may be used. The Brace-Tite System may be used with any type of suspension having Y" channels, not over 16" o.c. The embedded wire clip reinforces the piaster and increases crack resistance. As the Brace-Tite System requires only Yi" of plaster in two coats, its use results in economy of application. Fire ratings of one, two and three hours can be attained, under bar joist construction, by using Per forated Rocklath Plaster Base and variations of gyp sum-perlite plaster, channel spacings, and supplemental 14 gauge galvanized wire. (Refer to technical folder for erection details.) A special field clip is available for use where acous tical tile is to be cemented direct to the Rocklath. Materials Channels--USG V\" Cold Rolled Channels. Painted. Lath--*s" x 16" x 48" Rocklath Plaster Ba'se. Clips--Brace-Tite Field and Starter Clips, USG B-1 Bridjoint Field Clips. Corncritc--USG Painted Cornerite. Estimating Quantities 16" spacing of u" channels. Brace-Tite Starter Clips: one required for each channel abutting a vertical plane and at any interrup tion of this channel (such as at light trolfers). None re quired at opposite end of channels. Brace-Tite Field Clips--5 to 6 per square yard. USG B-1 Bnin.ioi.vr Clips--4 per square yard. 12" spacing of u" channels. Brace-Tite Starter Clips--Same as for 16" spacing. Brace-Tite Field Clip--7 to 8 clips per yard. US(; B-1 Bridjoint Clips--Same as for Jo" spacing. Packaging Brace-Tite field clip-. 800 per carton, starter clips, 50 per carton, and B-1 clips, 500 per carton. BB007 0 6 U This system is a method of attachment "J for ROCKLATH plaster base, floating it free from the framing, or basic wall or ceiling construction, by means of resilient spring clips. Floating the plastered wall free of the basic construc tion gives this system several outstanding qualities as compared with normal construction. Excellent Resistance to Sound Transmission Tests at a nationally recognized laboratory gave an av erage Sound Transmission Loss rating of 52.2 decibels on wood stud partitions with Resilient Clips and Rocklath plus'er base plastered boti, sides. This system re ceived this high rating because it simply and clfectively separates the structural part of the wall from the lath and plaster bv means of the steel springs which permit the lath and plaster to vibrate independently, thus de creasing the energy transmitted to the structural part of the wall. This rating is 11 decibels higher than thu. assigned to nail-fin construction using Rocklath. The Resilient Svstcm using Rocklath plaster base meets F.il.A. requirements for partv walls in multiple lamilv dw cllmgs. Maximum Crack Resistance Plaster cracking, due to normal frame movement, is great I v reduced with the resilient plaster svstem using Rocklath plaster base. \\ hen minor irame movement occurs, it L absorbed bv the resilience of the springs in the clip, Flexibility of thi.- svstem replaces rigidity of ordinarv plastered wails without sacrificing strength. Economy in Redecoraticn Rocklath Resilient Clips hold the plaster wall K' away from the framework, permitting air circulatioi and almost complete equalization of temperatures. Un equal temperatures are the cause of most of the char acteristic streaking of plastered walls which occur; where the plaster base is directly connected with tin framing members. The use of Rocklath Resilient Clip; practically eliminates streaking from that cause. Flexible This system usimt Rocklath Resilient Clips with Rocklath can be applied to wood, steel or masonry. Plain. Insulating or Perforated Rocklath Plaster bast can be used on wall-. Onlv plain or Insulating Rocklath, with three-coat plaMering. is recommended for ceilings supported bv Resilient Clips. Allow scratch, coat to set artel clrr before application of brown coat. Estimating Quantities A total r>( 6 clips per square vard is required. This includes the R-l field clips, and the R-2 clips required t" secure internal corners. Tue quantity of each is esti mated as in the following example: 500 square yards x 6 clips per yard zz 3,000 clips 5 CD Estimated number R-2 clips = 800 clips q Difference equals number P-1 clips = 2,200 clips *>J O O -f- RESILIENT LATHING 37 t Field Clip Resilient Clip, R-l, is used for the attachment of Rocklath Plaster base to wood framing members, . i floating the lath free of the framing members by .1 means of the resilient spring in the clip. The clip 3 is nailed to the framing members and the Rocklath is supported by the steel prongs of the clip. The R-l Clip is used only in the field of the area to be covered. Packaging--R-l Clips--250 per carton. Corner Clip Resilient Clip, R-2, is used for the attachment of Rocklath Plaster base to wood framing members at all internal corners. It provides the same spring suspension in corner sections as the R-I Clip pro vides in the field. The R-2 Clip is also used as the starting clip at the base of the Avail. Packaging--R-2 Clips--250 per carton. :, -1 Ceiling Channel Clip Resilient Clip, R-3, is used for the attachment of Rocklath Plaster base to ^4-inch cold-rolled chan nels in ceiling construction. The clip is hooked over the channel and the Rocklath engaged in the prongs of the clip. This construction provides a ceiling floated from the metal crillage of suspended ceilings. Packaging--R-3 Clips--250 per carton. Masonry Furring Clip Resilient Clip. R-5, is used to mechanically float a Rocklath Plaster base Avail or ceiling lrom masonrv or solid concrete construction. With ibis svstem the clip provides sound transmission re sistant advantages, and also furs the plastered Aval! Iron' the masonry. Packaging--R-5 Clips--200 per carton. CD CD O o -At o O' o 3 38 V A practical floating construction for plas tered walls and ceilings that securely, yet resiliency, fastens metal lath--wire tied to channels or rods--to the support ing frame with spring clips. -~ ADVANTAGES 1. Reduces transmission of sound. 2. Affords greatlv increased protection against cracks due to structural movement or excesGve vibration. 3. "Photographing" ol joists, etc., is almost emirelv eliminated because the plaster does not come in direct contact with these supports. 4. The system can be applied to practically all types of residential and commercial construction. 5. Onlv five simple types of clips meet all erection re quirements . . . the svstem goes up quickly and easily. Standard metal lath construction follows. P\CKAGING--500 clip? to a carton, except No. 400: 1000 per carton. \\ EIGHT per ihousand clips--_\o. ]00--56 lbs. No. 200--44 lbs. No. 400--35 lbs. No. 500--78 lbs. 0 O' 01 RESILIENT LATHING 39 \ No. 100--for suspended ceilings -- Furring channels 12" spacing; quantity--225 clips per 100 sq. yards. Furring channels 16" spacing; quan tity--169 clips per 100 sq. yards. (Runner channels at 4' spacing) -: ' No. 200--for wood studs or joists . ./V.. Walls (clip spacing 16" along studs): quantity--500 clips perl 00 sq. yards. Ceilings (clip spacing 12*along joists): quantity--675 clips per 100 sq. yards. (Studs or joists at 16' spacing) Suspended Ceiling Application of No. 100 Clip for suspended ceiling construction. The clip provides resilient attachment of the furring channel to the runner channel and eliminates need for wire-tieing channels together. Easy to erect. 2 Wood Frame Construction Application of No. 200 Clip on wood studs and joists. The dips provide resilient attachment of metol lath. 14" pencil rods wire-tied to clips; metal lath tied to rods. Masonry Surfaces Application of No. 500 Clip on ceiling under conCrete joists, and on masonry surfaces. This con struction provides furring, and resilient attachment of the metol lath. V*' chonnel wire-tied to clip; metal lath tied to channels. -j No. 403--for use on Trussteel Studs Stud spacing 12"; quantity--675clips per 100 sq. yards of surface area. Clips spaced 1 6" on_studs. Stud spacing 1 6": quantity--500 clips per 100 sq. yards of surface area. Ciips spaced 12' on studs. No. 500--for masonry walls and corrrete ceilings Spacing of Quantity Furring Spacing of Clips per Channels Clips 100 sq. yds. 12" 24' 16' 18" 19" 15' 450 450 455 S80? 0651 40 '] ` i v ` T i z- * 5_-'4 ^? 1 :\ ; -">- _j '-> ---. > *>n | '|**;._*T.fk^Tj**:"1^i.--. ' i>*J.m*0V'*r!- ^^ iS -. "J '- - i '* i< ' ' '' 4 4.4-^ : ... j9P J\.`! i'.iOl "l^J' The TRUSSTEEL Stud hollow lath and plaster parti- : tion is sturdy, durable, and easy to erect. Pipes, ducts and conduits are easily concealed. These partitions are light in weight, fireproof and eco-,: nomica!. USG COLOR-RITE Metal Lath or ROCK- ; LATH Plaster Base may be used. V'V-A* --- .i-.V.'V- Note the ease with which this sys tem accommodates pipes and ducts. IN The simplicity of TRUSSTEEL Stud erection is cieorly illustrated here. This is a truss design stud for hollow, non-load bearii fireproof partitions. Outer chords and diagonal stni are built of round rods. j As shown in the sketch on the next page, the cq ponent parts are (A) top and bottom runner trac (B) rod studs spot welded at all contact points, (C)j tachment shoes for connecting the studs to the runn; that permit up to 4" upward adjustment, (D) Me Lath applied to both sides of studs with 18-gauge { vanized tie wire or Rocklath attached with wire cli] For-Resilient Metal Lath construction, No. 400 cli can be used to float H inch pencil rods. j Advantages Tuussteel studs are built on the sound engineerit principles of the truss, and make strong, rigid par lions. Partitions of this type have been specified, jo tested and approved for the most important jobs, undj the most exacting conditions. Tuussteel studs have exclusive features that result greater economy in the erection of hollow partita1 They can be quicklv fitted around pipes and ducts of types, and are easily spliced. The attachment shoi make each stud adjustable in height to take care varying ceiling heights. The lather requires no spec*1 tools for quick, easv erection. OB CO o o o o U1 fNj TRUSSTEEL STUD .h 41 \ Sizes Available: Stud Width 2Vl'> - - z'A' : A : 4r L-w;.'; ' :- 6' . "A-.' Finished Wall Thickness--Normal Grounds Diamond Mesh or ROCKLATH or ft" Riblath . Riblath ' - A" / 43/i* S'A' 7/i' .vT:- : AVi" 514' U:... 6" .yru. ' A - 8' Stud Weight per ; 1,000 lin. ft. 440 lbs. . 455 lbs. y. - 470 lbs. f 515 lbs/ A1 Track Weight per ' '//: 1,000 lin. ft. T Maximum . . ; ' >V- Partition /V' /_/ Height / / 290 lbs. 354 ibs. TiTi V 417 lbs.';/'/;/ 583 lbs.":,;/// x.--o 14 ft. . l i6 ft.: v;i-:i8 ft. U | yj-. 20 a a - Stud Lengths: 7'0' to 20'0' in increments of 3'. Runner Tracks: 2Vi', 314*, A" end 6' widths by 8'0' long. .1. . T ' _Vl" Recommended Stud Spacing v \ Type of Lath ' .! - . J'-V- 2.5 lb. Diamond Mesh Lath - - ' ' ... ' - 3.4 lb. Diamond Mesh Lath u.;: . /;;; , // 2.75 lb. '/*' Riblath r. T;TV V -Vi/'./; Vt'./- u ;u '-A 3.4 lb. Riblath . V'-Tcy Ay././V V_f .//~ '' 3.4 lb. Vt" Riblath ./, .. / 4.0 1b. Vt" Riblath ; ;/ '..// . Plain or Perforated ROCKLATH Plaster base ... ..... v.- : : ; TRUSSTEEL Stud Spacing 12 inches - A- / -- | 16 inches J 16 inches - '3 19 inches" - /,;J 24 inches /; ii/'?\ - Vj . 24 inches /;; j . 16 inches '] Erection Alien the Trussteel Runner Tracks accurately 1 the partition layout. Securely fasten to the floor or ceiling at 16" intervals. Use 3-2 inch concrete stub nails for concrete slabs. Space Trussteel Studs 12", 16" or 24" on centers, according to the weight and type of lath to be used, and secure each stud to the runner trail; with two attach ment shoes at both lop and bottom, hoes are held by wire tioing around stud approximate^' 2" from track. Partitions 12 feet or more in heigh: should be braced horizontalh with 31 inch channels wired permanently to the inside of the studs. This bracing should be spaced not more than 6 feet on centers vertically. For metal lath, corners are iormed with three studs, and studs are doubled at door bucks unless the bucks are separately supported by adequate struts. For Rocklath. studs arc spaced l.'j" Irom internal corner angle, intersecting wall construction and from door bucks. Jt is recommended that bucks be supported bv adequate struts to construction above and studs tied to clip inserts ticar top. bottom and at midpoint. Rocklath piaster base is attached to Trussteel Studs with special clips. Consult vour L.F.G. repre sentative. Corneritc and eornerbead -hall be wire tied to riblath an i stapled to Rocklath. BB007 0653 42 1. Fireproof--Composed essentially of gypsum, the partition is fireproof. When plastered 1:1, 1:2 with sand, or 100:2, 100:3 with perlite aggregate, it has a 1-hour fire resistance rating. 2. Spcce Saving--Only 2" thick. Replaces partitions more than twice as thick--saves up to 5% of total floor area. 3. Strong--An official impact test with a 60-lb. weight travelling through a four foot fall failed to produce a discernible crack after three successive blows. 4. Economical--Actual cost is comparable with the cos* of conventional wood studs with ROCKLATH plaster base and plaster, both sides. Complies with F.H.A. requirements for rental housing. **kye- fe> .-SL** t / ^ ri&e /; -LIST TT i- , 2iF/SXv Description The 2" Solid Rocklath ami Plaster Partition is a stu less, non-load Rearms: partition consisting of 1 /' Loi Length \ -edge Rocklath plaster base held vertically floor and ceiling runner- and plastered on both sidi with 3-i" ol plaster. The lath is braced on one side wit temporary wood or iV' steel channels which are rnioved just before the brown coat of plaster is applie to the braced side of the lath, and after the brown co; has set on the unbraced side. This construction is suitable for non-load bearin partitions in multi-uni', homes, apartment buildingoffices. hospitals, schools and other structures. It ca: be used for walls up to J2 feet high. Electrical outle boxes and conduits, plumbing fixtures and door buck are easily installed during the erection of this partition FIRST, nail down metal floor clips approximately 24 inches on center. The mefol base side piares snap over shoulders of clips. Then grout gypsum ploster into base section. SECOND, securely attoch the L-shoped metal ceiling runner. Center the top flange over the center line of base. The three horizontal slots allow for minor variations in ceiling height. THIRL, pioce bc*tom edge of long length LATh ploster cost ir. set grouted base section*1* top edge against the vertical flange of runner. Position against V-edfeof preceding: bbod7 oe>5 SOLID LATH AND V<j PLASTER PARTITIONS V This ceiling runner is designed for the j ceiling attachment of Long Length 1 ROCKLATH Plaster base in the construetion of 2r solid ROCKLATH and plaster partitions. The runner is attached to the ceiling and the ROCKLATH fastened to it by use of two hairpin clips for each piece of ROCKLATH. The three horizontal perforations allow for minor Variations in ceiling height. j j j : ] > ", j Ceiling Runner: 8 ft. lengths, SO pieces per bundle. Hairpin Clips: 500 per ctn. ' The metal base is designed as a floor runner for use with 2* Solid ROCKLATH and Plaster Partitions. The floor clips are nailed to the floor and the base snapped in place. The base is then grouted full with sanded plaster raked out in an inverted V to receive the Long Length ROCKLATH. Ship. wt. per 1000 ft. double base, 1430 lbs. ~ j j (An alternate wood floor runner, milled to receive the lath, can be used in place of the metal base if desired.) j i ; Temporary Bracing Clip "5-U* This clip is designed to attach the tern-r i : porory % cold rolled channel brace to the ROCKLATH plaster base. The clip is inserted through the loth just ^ below the mid-section of partitions not exceeding 9 feet in height. The clip is . held in a vertical position and the chan-.\;:.:.nel snapped into the clip. It is easily removed when the channel is removed; -,:! permits easy and speedy attachment of the temporary bracing. Clips: 500 per carton. . Lvi BB007 0655 OURTH, secure top edge of ROCKLATH plaster >ase to ceiling runner with hairpin clips. Clips it easily thru slots in ceiling runner. Use two clips >er board. FIFTH, V*r channel temporary brace: one horizontal, for up to 9' height, held with USG braeing clips; vertical brace, every 6', tied to horizontal brace and anchored at floor and ceiling. SIXTH, apply scratch coat to both sides. Following day apply brown coot to side opposite bracing. When set, remove bracing and brown braced side. Apply finish to both sides. \ 4 .fi. "'. MW."AIJ.1l* 1 A non-load bearing partition of metal lath and channel construc tion plastered on both sides to an overall thickness of two inches. =J Solid Metal Lath and Plaster Partitions are bu from readily available stock materials--all items ; quired are in normal dealer stock. The construction consists of channel studdi from floor to ceiling, metal lath, and plaster. Ut Metal Base and Ceiling Runner, or other approv methods of floor and ceiling attachment may be us( Electrical equipment and plumbing fixtures, do bucks, etc., are easily installed with the partition. 1 Advantages: j Fireproof--composed essentially of gypsum and stt the partition is incombustible. Has fire resistive rat of 1 hour when plastered with gypsum plaster sane 1:2, 1:2, or gypsum--perlite 100:2, 100:3. Space Saving--only thick. Replaces partitio more than twice as thick. Saves up to 57o of total fit area. Strong--metal lath acts as a steel reinforcement, p viding exceptional strength. Economical--cost is comparable to conventional wo or metal stud partitions lathed and plastered b< sides. Light weight--only 13 to 17 lbs. per partition squ: foot. Resists Transmission of Sound--37.6 db rating. Third--Erect channel studs ond instof forcement over door opening. 880C7 0656 SOLID LATH AND , K PLASTER PARTITIONS 40 I Ceiling runner, designed for use with Va" channel studs. Runner r ... The U5G Me/a/ hose was designed for use with the 2" Solid can be stub-nailed to reinforce concrete; is slotted to receive . USG Metal Lath and Plaster Partitions. The floor clips ore nailed channel ends. Available in 10' lengths. Shipping weight per ]'/' to the floor and the base snapped in place. Channel studs attach 1,000 feet, 222 lbs. : ' ''V. V directly to clips within base. Shipping weight per 1,000 feet . ' ` double base, 1430 lbs. , ,- - ''7 A i Erection Recommendations Height of Partition Thickness of ; Partition : Size of Channel : .'. Permissible .... Stud length of Partition Spacing of Studs Lath Recommended Up to 12' . Up to 14' Up to 16' Up to 18' Up to 20' Up to 24' Up to 30' . ............ \ . -v . 2' %' : No limitation 2' - '-'-.U 24 ft. . 2 Vi" .> ' 32 ft. 2'/j" 2%" . ., V." v-v-;,/ 3/4" . 27 ft. , 30 ft. 3* -ixr t/j" ; - 36 ft. 3'/j" ' va" .--v 30 ft. .. - V..,*-. .... . - 16' 2.5 lb. Diamond Mesh 16' -. 3,4 lb. Diamond Mesh . 16'. . 2.75 lb. Vi" Riblath : 24" 3.4 lb. Vi" Riblath - 24" 24" '/:r3.4 lb. Vs" Riblath ,. 4.0 lb. Vs" Riblath :. 7^-" This stud spacing permissible for partition heights not exceeding 16 feet. For greater heights, permanent horizontal stifFener channels must be secured to channel side of partition every 6 feet vertically, or spacings should be reduced 25 per cent. 03 CD O o -n/ O OU1' Fourth--Set up temporary horizontal channel bracing (remove before applying finish coat) and install conduit, outlets, etc. Fifth--Apply mefci ath, starting at ceiling and working toward Boor. Sixth--Apply scratch coat to lath side, back-up to channel side. Then brown and finish coats to lath side, flmsh only to channel side. USG Metal Products Many of the U.S.G. metal products that go int< quality building are not visible when the job' vital accessories finished. Yet here, as in ether areas, U.S.G. re to superior construction search and pioneering have led to develop ments now considered essential throughout th building industry. U.S.G. is justly proud of COLOR-RITE mete lath--THE STEEL HEART OF PLASTER--and its de pendable lathing accessories: Cornerite, an< a selection of corner beads to meet every joi t requirement. Here, too, are the four simpl 3 metal clips that make possible the popular aru practical "floating" construction for plastere< walls and ceilings. A U.S.G. innovation is the famous TRUSSTEE stud, with exclusive features that allow mor economical erection of hollow partitions. U.S.G. metal products have the same de pendable quality as otner building materia bearing the famous U.S.G. symbol. S_ 09 CD O o -u 0 O01' 09 Metal Products STATES BB007 0659 48 .; rodsireinfbrceiconcnete?:. i/. h iv < .w^b^exiblesthntat.pennitstomaniental'plasterrTngrrthatrisxalmostiimpossiblestorxichieve'^vith* " Tanyaotherplasteubaser. Advantages of USG COLOR-RITE Metal Lai 1. LSG Coi.o; Riti: Metal Rath represents the n< development it; the metal lath industry. Ends of die- are spray painted red for all 3.4 lb. lath, ichi; 2.5 lb. diamond mesh and 2.75 lbs. Z-rih. blue in lb. ?s" rihiath. Thi- makes warehousing, inventor' job distribution easier ami positive. Architects quickly and visually inspect a job to make sure weight 1. .h speeihed has been used. 2. Helps assure good plastering. An over-sanded sci coat will not key to it. Scratching with the correct to the proper thickness is the easiest, fastest wat Thousands of openings per sq. yd. give plaster a bu grip to metal lath. 3. Full plaster thickness phis overall steel reinf ment produces walls of maximum fire resistance. Diamc-.d Mesh Lath--the all-purpose metal lath, plain ami ornamental plastering. Contains approxin. 11.000 openings per square yard. Trimmed squa ends. Rigid siieets prot idc fast, easv erection, furring" Diamond Mesh has?s"indcntations. US" Sheet size: 27" x 96", 10 sneets, 20 sq. vds. per heights available: 3.4 lb. and 2.5 lb. copper alloy s painted. Galvanized, available only in 3.4 1L. Z-Riblatn--a more rieid Lr 2ian Diamond Mesh gidl'v achieved bv wim-. st ' i ; s" ribs. 11on cer and hv herringbone design mesh. Ideal for double plastering. A ''plaster sating" lath--a minimal plaster dropnings. Sheet size: 24" x 96", 9 -beets, 16 sq. vds. per heights available: 3.4 lb. and 2.75 lb. copper steel, painted. 4-Mesh Z-Riblcth--a flat rin tvpe of lath with S' ami smaller mesh opening.-. Epiullv suitable lor I or nail-on work. Ai.-o a plaster sating tvpe of la11 Sheet size: 27" x 96", 10 sheets. 20 sq. vds. pei Weights at iiablc: 3.4 lb. and 2.75 lb. copper steel, painted. 83007 C 660 r l y%" Riblath--a rigid, self-furring lath. Also a reinforce ment for light concrete slabs. As a plastering base, per mits a greater span--up to 24"--than other types. Distinguished particularly by the lapping or nesting feature of outside ribs--no bulky, uneven surfaces to hinder the plasterer. Sheet size: 24" x 96". 9 sheets, 16 sq. yds. per bdl. Weights available: 4.0 lb. and 3.4 lb. copper alloy steel, painted. 2A" Riblath--most effective as a centering and rein forcement for concrete roofs and floors, and for use on much greater spans than are permissible with ?s" liblath. Seldom used as a plaster base. It is also used for column and beam protection, tanks, fences, walls, etc. Sheet sizes: 24" x 6', 7', 8'. 9', 10', 11', and 12' (8', 10', and 12' sheets are stocked). Weights available: .75 lb. and .60 lb. per sq. ft. Copper alloy steel, painted. B-V Lath --so called because of its original use as a rein forcing for concrete burial vaults. Its large Vi" wide diamond makes it suitable as a reinforcement for many tvpes of light concrete slab work, and as a stucco base. Also available in self-furring type. Sheet size: 24" x 96", 9 sheets, 16 sq. yds. per bdl. Weights available: 3.4 lb. and 2.5 lb. copper alloy steel, painted. Stuccomesh--exjlanded steel mesh for stucco work. Di agonal strands enable the stucco to resist cracking due in shrinkage, temperature changes and wind stresses. Also provides protection against impact. Apply with Stucco Fu:ring Nails. Sheet size: 48" x 99", 10 sheets, 36:s sq. yds. per bdl. Weights available: 3.6 and 1.8 lb. copper alloy stee!, painted. Striplath--a strip of Diamond Mesh Lath used for a varietv ol purposes--stripping joints on other tvpes of lath, reinforcing pipe chases cut in masonrv partitions, diagonal reinforcing over door openings, etc. Sizes available: 4 "and6" wide copper alio v steel, pain ted. Packaging: Master bundles oi 000 lin. ft. (75 pieces of 8'. containing 3 separate bundles of 25 pcs. each). Weight: 100 lbs. per M lin. ft. oi 4"; 150 lbs. per M lin. ft. of 6". METAL LATH r 49 O O' O' 50 9 \ I "i i'! I Cornerite--a diamond mesh lath angle used over gyp sum lath and masonry (or where different plaster ba'sejj abut), and as reinforcing for inside wall and ceilinj corners to help protect against corner cracks. Packaging: Master Lundies of 600 ft. (75 pcs. of 8'0' containing 3 separate bundles of 25 pcs. each. Sizes available: 2" x 2" and 3" x 3" copper allov steel painted. Weights: 2" x 2"--100 lbs. per M lin. ft. 3" x 3"150 lbs. per M lin. ft. Cold rolled channels--used in most "fireproof" con? struction as secondary structural members: for fun ring; as studs in non-loadbearing partitions: for sus-; pended ceilings; for ornamental work. Formed from! plain steel strip and painted. Corners are square and] the legs and webs are straight, free from harmful! wrinkles or curvatures. 1 Weights. Lengths and Packaging: ii"--300 lbs. per Mj lin. ft.. 16' and 20' lengths, 20 pcs. per bdl.: lli"--? 475 lbs. per M lin. ft., 16' and 20' lengths, 10 pcs.1 per bdl. ] No. 1A 2Vi " Expanded Flange Eead, 26 ga. gaiv.--the tvide, sturdy expanded flanges provide ease of applica-: tion over rough irregular corners. They give maximum; plaster reinforcement close to the nose of the bead. Lengths and Packaging-- 8', 9', 10', 12' lengths, packed 60 pieces per carton (6 bundles, 10 pcs. each) regardless of length. Shipped in cartons onlv. I Weight: 204 lbs. per M lin. ft. | No. 4A WW Flange Flexible Bead, 26 ga. galv.--the | all-purpose bead: has great flexibility. Ideal for straight; corner work. By snipping one flange, mav be hand- _ formed into almost any radius. Corner bead clips facii- i itate fastenin': bead far back from the nose. Lengtii? and Packaging--8'. 9', 10'. and 12' lengths, shipped in cartons of 6 bills., 10 pcs. per bdl., regard less of length. Weight: 179 lbs. per M lin. ft. No. 9A--Corner Bead Clips--(1000 pcs., 25 lbs. per box). No. 5A Short Flange Bull Nose Bead, 26 ga. galv.--%" radius nose for rounded corner construction with ex posed steel surface. Preferred in hospitals, public build- inns. Often applied with corner bead clips. Lengths and Packaging--(shipped in crates, or in bun dles of :0 pcs.) 8'--560 ft. per crate 10'--500 ft. per crate 9'--5-10 ft. per crate 12'--600 ft. per crate Weight: 245 lbs. per M lin. ft. No. 9A--Corner Bead ; Clips--(1000 pcs., 25 lbs. per box). j BB0C7 0662 l No. 1 OA 2V2 " Expanded Flange Bull Nose Bead, 26 ga. galv.--a superior type 4" radius bead. Easily fastened to uneven and irregular surfaces. Expansion flanges flex in and out to accommodate irregularities. Easily plumbed. Lengths and Packaging--(shipped in cartons only): 7\ 8'. 9'. 10', and 12' lengths. Packed 30 pcs. per carton regardless of length. Weight: 350 lbs. per M lin. ft. No. 3A Expanded Flange Base Screed, 20 ga. galv. A" grounds onlv--flush type. Used as a dividing strip or .-creed between plastered surfaces and cement or terrazzo surfaces. Expanded flange makes it suitable for uneven surfaces. Lengths and Packaging--10 ft. lengths only, 500 ft. per carton. Shipped in full crates only. Weight--204 lbs. per M sq. ft. No. 6A Plain Base Screed, Is" grounds on)}--the most popular type base ground. Flush type. Can be shimmed out from the surface if more than Vi" grounds are necessary. Lengths and Packaging--10 ft. lengths only, 1000 ft. per carton. Shipped in cartons only. Weight--160 lbs. per M lin. ft. No. 7A Curved Point Base Ground, 26 ga. galv. A" grounds onlv--the offset design provides for a lA" plas ter ground above the screed face and for 1" thick ce ment or terrazzo below the point. Lengths and Packaging--10 ft. lengths only, 1000 ft. per carton. Shipped only in cartons. Weight--195 lbs. per M lin. ft. No. 8A Concealed Picture Mould, 26 ga. galv. A" grounds onlv--erected before plastering. After plaster ing. onlv a l-i" line opening is visible. Also acts as a plaster ground to accomplish a uniform plaster thick ness. Lengths and Packaging--10 ft. lengths only, 1000 ft. per carton. Shipped in cartons only. Weight--260 lbs. per M lin. ft. 1 * Metal Lath . . ,, 51 . _> . CD 3 O o -0 o O' O' u> I ,-^ ,,^ ,, .inmUSUVrMMin..si' ,1 Resilient Metal Lath Clip No. 100 Clip--Is used for attaching furring channels to runner channels. It eliminates need for wire tying channels together in suspended ceiling construction. Packed 500 clip- per carton. No. 200 Clip-- - o-ed to receive pencil rods and metal lath over wood ^tuds and joists. Packed 500 clips per carton. No. 400 Clip--Used for attaching pencil rods and metal lath to Trussteel studs. Packed 1000 clips per carton. No. 500 Clip--Used to fur out channels and metJ lath from masonry surfaces. Packed 500 clips per carton. Weight per 1.000 clips--No. 100--56 lbs. No. 200--44 lbs. No. 400--35 lbs. No. 500--78 lbs. Resilient C'ips Lath Attachment Clips For attaching Riblath to steel joists. Packaged 1000 per carton. No. 1 for 1J -j" to l'A" flanges No. 2 for 2" to 2H" flanges No. 3 lor 2-7 16" to 2-11 16" flanges No. 4 for to 2>)i" flanges No. 5 for 331" to 4H" flanges No. 7 for 43s" to 45s" flanges Galvanized Steel Wall Ties Corrugated galvanized steel J's" by 7", for anchoring masonrv veneer to structure. 1. sed every 6th course 16" apart in brick work. Wt. 35 lbs. per ctn. (1000). Tie and Hanger Wire 18 gauge and 16 gauge galvanized, soft annealed, for tieing metal lath to channels, and furring to runner channels. 50 and 100 lb. coils. 25 lb. hanks (28" straight lengths). 8 gauge for suspending channel run ner when spaced not more than 4'0" O.C. Qn No. 100 No. 200 No. 400 $ A..- ,\\V Lath Attachment Clips Tie Wire U' ,-.2v Wall Ties --------cv ..vrjsn.; TRUSSTEEL STUDS This is a truss design stud for hollow, non-load bearing, fireproof partitions in which pipes, conduits, air ducts, etc. can be easily fitted and endosedrTRUSSTEEL stud partitions are-easy to erect, light in' weight, economical, have excellent strength, and substantially re-' duce sound transmission. Light gauge metal runners, flexible enough to follow floor and ceiling lines, are aligned and fastened to both floor and ceiling.' Each stud is secured to the runner tracks with two attachment shoes (designed to permit to 4" upward adjustment) at both top and bot-: tom, by wire tying approximately 2* from the runner track. a' GENERAL DATA Size Recommended Maximum Ceiling Height Shipping Weights Studs Runner Tracks 2l/z'' 3 Vi* 4' 6* 14' 1 ^'-O" 18 '-O'* 20'-0* 440 lbs. 455 lbs. 470 lbs. 515 lbs. Stud Lengths: T-0* to 20'-0" in 3" increments Runner Tracks: S'-O* lengths Atrachment Shoes: 125 lbs. per 1000 pieces 290 lbs. 354 lbs. 417 lbs. 583 lbs. ;b 7A U 03 CD O O o O' O' 4> 4 'y t USG 2" Partition Terminal--for use as a partition tap and plaster ground, or to form openings in 2" solid plaster partitions which have either metal lath or Rocklath for the plaster base. Cap is 18cauge steel, welded to 24-gauge punched runner --prime coated. Lengths and Packaging--8'2" lengths only. 30 pieces, 245 ft., per crate. Weight: 450 lbs. per 1000 lin. ft. USG Ceiling Runners -- Z-type: a specially de signed steel angle providing positive anchorage and alignment of u" channels in either solid partition or exterior wall furring construction. L-tvpe: similar to above, for studless metal lath, or solid Rocklath, and plaster partitions. Lengths and Packaging--Z-type: lO'lengthsonly; 50 pieces, 500 ft. per bundle; 222 lbs. per 1000 lin. ft. L-type: 8' lengths only: 80 pieces, 640 ft. per bundle; 175 lbs. per 1000 lin. ft. Metal Casings--for door and window- openings. Furnished with expanded flange for A" , or H" emunds: No. 4, quarter round; No. 60, semisquare: No. 66, square. Also available in short flat je for A", H" or Ji" grounds: No. 60, semisquare; No. 66, square; No. 138, quarter round. Lengths and Packaging--shipped in crates only: 7'--560 ft. per crate 8'--560 ft. per crate 10'--500 ft. per crate Weights--pier 1000 lin. ft. Expanded flange casing--320 lbs. Short flange casing--220 lbs. USG Metal Base provides n. one economical unit: (1) a flush type steel base lor partitions or other Avails; (2) true partition alignment: (3) plaster "rounds. Designed for installation on any type or rough or finished floor. The ears of the floor clips engage the top flange of the side plates, permit ting the side plates to independently and aulomalicallv adjust to uneven and irregular floors. Metal Base Accessories 18 Gauge-- Galv. TYPE Double Clips Single Clips Masonry Base Clips Stud Base Clips Splice Plates PACKAGED 400 per cm. 500 per cm. 350 per cm. 500 per ctn. 500 per ctn. WEIGHT PER CTN. 46 lbs. 3S lbs. 32 lbs. 32 lbs. 39 lbs. METAL SPECIALTIES 53 i j :'* t1 4 - - '*1 - 1 * . .=! ! L_, BUNDLING AND WEIGHT TABLES, GENERAL DATA * Diamond Mesh Lath, 3/s" Rib Lath and '/e" Fiat Rib Lath 24 Inch Width No.of. Bundles-. Yards . 2.5 lb. E-et-nA' Weight of Loth ' .'Cz 2.75 lb. 3.4 lb." 5-' V :'24.0 lb. , 1. 2 3 i. 6 7 8 9 10 11 12 13 14 15& 16 17 18. 19 20 *--*21 22 23 24 25 26iv> 27~ 28 29 : - 30.3ir *- 327 ;4> > 33 34s .--> 3536< - 37! : > 38v#. : 39* ' ,40 ; 41 .v 42.r >. 43. ' s44tt45: '7 V' 46a.- ' ' - 47" . : .'. 48> 49; 30:-. .16 >32-.. 48 . 64 80 ' .196 VJ 12>. 128 144 : 160 176 192 208 1 224 240 256 272 288 304 320 --336 . 352 368 384 400 416 432 448 464 480 496 512 528 544 560 575 592 608 624 640 656 672 688 704 720 736 752 768 784 800 . ' 40 .///- so : . 120 " v 160 200 ' . 240 > >>- 280 320 V 360 ' ,.'./ 400 .440 -- 480 i 520 . 560 > > 600 . 640 680 - 720 760 : soo . 840 880 920 960 . 1000 1040 1080 1120 1160 1200 1240 1280 1320 . 1360 1400 1440 1480 1520 1560 1600 1640 1680 1720 1760 1800 1840 1880 1920 1960 .2000 > 44 .'88 .. .132 . 176 V 220 ; > .264 308 ; . 352 396 ; /. 440 484 . ; 528 572 .: 6i6 660 704 748 792 836 880 ' 924 968 1012 1056 1100 1144 1188 1232 1276 1320 1364 1408 1452 1496 1540 1584 1628 1672 1716 1760 1804 1848 1892 1936 1980 2024 2068 21 12 2156 2200 . 54'.4 V -V:;; 64>-/ *. 108.8 r" 128 v .163.2' 217.6 256./ 272.0 320 ./ . 326.4 ^ 84i ' 380.8 '> 448 d ... 43 5.2 : >. 512 - >/ 489.6 ,'.> 576,l 544.0 . ' 640 .... . 598.4 704 .... > 652.8 . '-.?'7681% 707.2, .761.6 816.0 870.4 ->>832^ 896 4 . '60 1024 ,/ 924.8 979.2 1088 . -i`r 1152 1033.6 , 1216 -;- 1088.0 1142.4 .1280 v . 1344 1 196.8 1408 1251.2 1472 . 1305.6 1536 1360.0 1600 - 1414.4 . 1664. 1468.8 1728 .; 1523.2 1792 1577.6 1856 1632.0 1686.4 1920 1984 1740.8 2048 1795.2 1849.6 2112 2176 1904.0 1958.4 2240 2304 2012.8 2067.2 2368 2432 2121.6 2496 2176.0 2560 2230.4 2624 2284.8 2339.2 2688 2752 2393.6 2816 2448.C 2502.4 2880 2944 2556.8 3008 2611.2 3072 2665.6 3136 2720.0 3200 27 Inch Width No_of~ Bundles >- . .., Weight of Lath Vv:;>: Yards .... . 2.5 lb. 2.75 lb. u 3.4 lb. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 ,. 22 23 24 25 26 27' 28 29" 30 31. 32 33 34 3536. 37* 38 3940 -41 . 42; 43. .. 44- 45 ;. 46 47' 48i49 50. - 4 20 1-`3'55'T ' 50" T 68 O w-> m-r'Oi' m > ; > 100 > 60 '\ , - 'l 50 3>>136' mm . ' ' 2C.3 220 ' ':?:r272 ' 'loo - ,- . ,250 ,.. 275 ' 3034O^ -./7rv .> - . v:t:. i-2o-w-V> : **.140 4 :S\6o;| w-,r:.300. i*s >-. 350 :. :S^330 W': 385 i;V Sv>408 '0?47'6" ' `V J>-`400 - . y'-- 440 -. . ;'.'. mm ''-.180 .T~ 450 : 495.. ;.; M. 61 2 > V200"S ' 500 I'r 550 ' 80/ 220 , 550 ;:V 'Vi 605 W48- f;- 240 >600 ^ ^66:>: >St816- 426o;: :: . <-t 650 ' ' *:rv , 280 ; > 700; >;v770 >. 300-- "". 750 ,3 825 : 320 vsoo - >>.880 340 .'. . 850 935 . ,^|884 952 1020 1088 >: 1,156 " 360 : ' 900 . . 990 '-1224 380 >40 1. :.;;'420 ' ' 440 v 460 > 480 . 500 4 520 , 950 1000 '1050 .1100 ` ! 1150 1200 ' .1250 ; 1300 -> 1045 . .1292 1100 Vii55: ` :S- \.- 1210 :. J 1 360 ". 1428 1495 1265 .1564 .; 1320 >1632 >1375 1700 1430 , > V 1768. >540 . 4 560 580 : 600 620 640 660 680 700 ' 720 740 760 780 800 820 840 . 860 880 900 920 940 960 980 1000 . 1350 1400 1450 . 1500. 1550 1600 1650 1700 1750 i8co ; 1850 1900 1950 2000 2050 2100 2150 2200 2250 2300 2350 . 2400 2450 2500 . 1485 .' 1540, .1836 *-. 1904 - .1594 / > 1972 1650 ,',>2040 1705 1760 >2108 - 2 i76 1815 , >2244 .1870. > 2312 1925 >''2380 1980 2448 2035 . 2516 2090 2584 2145 2200 2652 2720 2255 2788 2310 2856 2365 2924 2420 2992 2475 3060 2530 3128 2585 3196 2640 3264 2695 3332 2750 3400/ Lathing Accessories BB0C7 0666 Bundling, crating, packaging and weight date ere induced with the deseripiion of products on the preceding - ages. METAL LATH A 55 Application Instructions, Nai!-on Jobs 1. Lath ceiling? first. Carry sheets six inches on down the wall?. If metal lath is not used on ceiling but is used on sidewalls, it should be carried out six inches on joists. 2. Apply with long dimension running across the studs or joists. Secure by nailing or stapling along studs or joists at not more than six-inch intervals. 3. On sidewalls, lathing begins at the top and is con tinued downward. Lower sheets should always overlap the upper sheets. Diamond mesh lath should be carried around corners to at least one stud spacing. 4. Riblath on both sidewalls and ceilings should be ap plied with ribs against the supports. 5. Diamond mesh shou.J be lapped at sides not less than 1 > inch, and at ends not less than one inch. Riblath should be lapped at sides by nesting outside ribs, and at ends by lapping not less than one inch. 6. All side laps should be tied with 18-gauge tie wire at least midwav between joist or stud supports, but at not more than 9 inch intervals. 7. Ends of sheets generally should occur over supports; if between, ends of sheets should be securely laced together with 18-gauge tie wire. 8. Staggering is preferable but is not essential. Nailing Diamond Mesh and Fiat Riblath On walls--use 4d common nails driven H" and bent to engage three strands, or 1" roofing nails with >ir," heads driven home, or 1" No. 14 gauge wire staples. On ceilings--use 11No. 11 gauge (Jie" head) barbed roofing nails driven home. Ys" Riblath On walls--use 4d common nails driven through rib, or 6d common nails driven M" and bent over rib. On ceilings--use 112" No. 11 gauge roofing nails driven through the rib. head) barbed For Tie-up Work For tieing metal lath to channels--No. 18-gauge gal vanized annealed tie wire. For tieing channels to chan nels (horizontal or vertical construction) use 4 strands of 18-ga., or 2 strands of 16-ga., galvanized annealed wire. Estimc ing Quantities For Suspended Ceilings The following "rule of thumb" method will be found helpful in making a quick quantity estimate. 1. Determine surface area in square feet. Example: ceiling area 30x100 feet--3,000 square feet. Divide by 9 to determine square yards of metal lath required. Assume standard suspended ceiling construction of 1 Vi" runner channels 4 feet apart, and ?" furring channels either 12", 1314", or 24" apart, depending on type and weight of metal lath used and allowing for channels adjacent to walls and foi channel splices. 2. Quantity of 1 Vi" channels 4 feet apart--divide square foot area by 31'2 (3000 divided by 3)4 = 860 lineal feet). 3. Quantity of %" channels 12" apart--multiply sq. ft. area by 1.1. (3000 x 1.1 = 3300 lineal feet). 4. Quantity of 3A" channels 13,/2,/ apart--multiply sq. ft. area by 1. (3000 x 1 = 3000 lineal feet). 5. Quantity of Va" channels 1 6" apart--multiply sq. ft. area by 0.8 (3000 x 0.8 = 2400 lineal feet). 6. Figure tie wire at approximately 10 pounds per 100 square yards of lathing. For Nail-on Work Metal lath applied to wood framing 16" O.C., nailed 6" O.C., requires approximately 17 nails per square yard. Large Headed Barbed Roofing Nails yis* head Common Nails Length Gauge 1H I'/i" 4d 6d No. 1 1 No. IT No. 121/2 No. 1 l Zi No. per lb. 275 188 316 181 For Partitions (Per 100 Sq. Yds.) Ceiling Height 7 ft. 8 ft. 9 ft. 10 ft. 1 1 ft. Spacing of Studs 12 in. 1 2 in. 1 6 in. 20 in. 24 in. _ Approx. Lineal Feet of Studs Required 91 0 ft. 91 2 ft. 684 ft. 550 ft. 460 ft. Lineal Feet of Floor ond Ceiling Members Required 260 ft. 225 ft. 200 ft. 1 80 ft. 1 64 ft. Lath one side -- 100 sq. yds. Lath two sides -- 200 sq. yds. Erection Data Type c* Loth Diamond Mesh Diamond Mesh 2-Rib (21 Z-Rib (21 2/,' Rib V," Rib S7UCCOMESH STUJCOMESH Weight per Square Yard 2.5 lb. 3.4 lb. 2.75 (b. 3.4 lb. 3.4 lb. 4.0 lb. 1.8 lb. 3.6 lb. Type of Steel Copper Alloy Copper Alloy Copper Alloy Copper Alloy Copper Alloy Copper Alloy CoppF** Alloy Copper Alloy Size Sheets 27"x96" 27"x96" 27"x96" 27"x96" 24"x96" 24"x96' 48'x99' 48"x99" Wood 16" 16' 16' 19' 24" 24' 16" 16" Maximum Allowable Spacings Vertical Supports Horizontal Supports Metal Solid Partitions 16" 16" 16" 24" 24" 24" Others 12" 16" 16' 19" 24" 24" Wood or Concrete in 16" 16' 19" 24' 24" Meial id 1 3 Vi" 12' 19' 24" 24' (!) Not recommended, except for fireproofing of steel shopes. (2) Or 4-mesh Z-Rib. BB007 0667 56 > USG hecdy-formed Metal Archer The economical way to modernize old fashioned woodtrimmed openings. Also ideal for new construction. They can be made to fit any size opening and partitions of any thickness. No forms to make. No corner bead to bend or shape by hand. Each metal arch gives a true, symmetrical, beautifully arched opening. Arches are individualiv packed in strong corrugated cartons, each carton containing illustrated, easy-tofollow directions. Three stvles: Half circle. Gothic, or Elliptic. Seven sizes for 2'6" to 6' ripenings. Style of Arch (for 2x4 Studding) No. 1 1 Half circle design, 10* radius No. 22 Half circle design, 15%" radius No. 33 Gothic design for 2'6" opening No. 44 Gothic design for 4'0' opening No. 36 Elliptic design for 3'0" opening No. 55 Elliptic design for 5'0" opening No. 66 Elliptic design for 6'0" opening No. of Pieces Per Set 2 2 4 4 4 4 4 TRIPLE-VENT Basement Sash and Screens Sturdily designed for positive, weathertight and easy, iong time performance. Three ventilating positions. Top position avoids di rect bottom drafts. Bottom position aims incoming air at the floor. Mid-position gives clear circulation top and bottom. Each light is factorv lined with cork strip? for putty less glazing. Glazing clip? supplied with each sash. Can be pultv-glazed if desired. DOUBLE-VENT Basement Sash and Screens Two ventilating positions: top half or top full open. Each sash is furnished with wire glazing clips for puttygsazing onlv. No. of Size of Glass Mosonry Opening Sash Size Weight Lights Width Height Width j Height 2L 1512 2L 1516 2L 152C 151/2 lbs. 16% lbs. 1 8 Zi lbs. 2 2 2 15" 12" 33 !4" 15" 16" 3314" 15" 20" 3314" 15" 19" 23" Screen-: 1 a\e -trong. rn d roll ed sloe 1 frame painted gray. Bronze wire screen cloth. l'acket : w ith cl i|)5 pro\ ided 1 or atlachiiiL to h. BB007 0668 hLUMIJJUM louvers METAL SPECIALTIES 57 USG MULTI-PITCH* Louvers. Adjustable, triangular for installation in gable end peaks. Multi-Pitch are easy to install ... no notch ing or cutting of studding required. They are easy to adjust. The unique design of USG Multi-Pitch louvers permits maximum ventilating area at all pitches. Slats Slav equallv spaced regardless of pitch adjustment pro viding more free area than other types of adjustable louvers. Furnished with plastic insect screen. Rectangular Louvers USG rectangular louvers are made from two formed sheets of aluminum folded together with premium plas tic insect screen sandwiched between. The inverted louver provides maximum storm protection. Patented design offers larger percentage of free area opening for respective louver size. The larger sized rectangular louvers are especially suited for use with attic fans. The rectangular louver is a 2-in-l louver which is suitable for all types of construction. Bv turning this louver upside down and reversing it so the flanges project out from the building, it becomes self-casing suitable for masonry, brick veneer or stucco construction. Pitched Roof Louvers For ready installation in sloping roofs of any pitch, providing maximum air circulation and tops in weather resistance. The deep angle of the louver opening is designed to provide maximum storm protection. Exterior Air-Vent Complete with crimped-in screen, designed for use as cornice vents under <?aves and for ventilation of unex cavated areas. Improved louver design provides modern appearance. Two sizes available, 16"x5?8" and 16"x9". Foundation Louver for Masonry For installation in masonry, matching concrete block size and suitable fo: any type masonry w, J. Improved design showing tightly stacked louvers in three panels providing a modern streamlined appearance, insect screening is built in. Interior Air-Vent Finished in cmhos-cd design, flush front, without screen for installation in door and wall locations where air flow or ventilation is required. Installed in pairs on one or both sides of opening. May be inverted so that louver appears solid when located above or below eye level. Made in three sizes, 11" x 5:'b". 16" x 5:'s", and 16" x 9". 'Keg. T.M. of Home Comfort K*.fg. Cc . Peoria, III. ] j i j 03 00 o o -J o O' O' # 58 Cupola Louvers Model 3 Cu-Po-Yent* has two panels fully louvered and two panels with three louvers each. Model 3 Cu-Po-Yent is designed lor ridge mounting on lower pitched roofs as shown in illustration. Model 7 Cu-Po-Yent has all four panels fully louver ed and is designed for hip roof, flat roof or curb mounting where architecture dictates cupola should he mounted above the ridge of the roof. The Cu-Po-Vext cupola is architecturally designed to add beautv to anv home. The shaped and knurled louver edges and embossed aluminum give added rigid ity to the attractive design. The Cu-Po-Yent cupola serves both a decorative and functional use in today s home. The Cu-Po-Yent cupola is constructed of heavy "lifetime" embossed aluminum. The side panels con sist of rust-proof screen securely fastened between two sheets of rust-proof embossed aluminum. The roof sec tion is reinforced to provide greatly increased wind resistance. Yentilation of attics with hip roofs, flat roofs and low pitched roofs is simplified with use of a Cu-PoA ent cupola. Proper combination of Cu-Po-Yent with ade quate eave venting or with properly sized louvers in roof slope or gables gives improved venting for con densation control. For summer cooling, Cu-PoA ent can be used with or without attic fans to provide an excellent exhaust outlet. Sturdy, cast aluminum weather vanes in ornamental black ... designed to give an added touch of distinction and grace to your home. Available in four handsome models that blend with any type architecture. The base of the weather vane is especially designed to fit your Cu-Po-Vext cupola. The Cu-Po-Yent cupola may be purchased with or without a weather vane as the buyer mav specify. A special cap is provided for use on cupola without weather vane. o Foot 5-12 Pilch Sectional Triangular Louver--A fixed pitch triangular louver for use where exceptionallv large volumes of air must move thru the attic. This louver is very well adapted for use with an attic fan. Made in two sections for ease in handling and installation . . . minimizes storage space. U5G Aluminum Louvers and Cupolas Rustproof--Made from aluminum, with plastic insect screens in most Louvers, and with rust-proof meta! screen in Cupolas. Easy To Install--Wide variety of sizes and styles to fit new or existing buildings. Positive Ventilation--No sluts to collect debris or for birds to nest in. thus assuring a continuous air flow. Patented design provides maximum irce ventilation area. SB307 0670 *Reg. T. M. of Home Comfort Mfg. Cc., Peoria, II!, METAL SPECIALTIES 59 5peciriations -- USG Aluminum Louvers and Cupolas ANGULAR!LOUVERS! Size 8x8 8x12 8x1o 2x12 2x18 2 x 24 4 x 24 0x12 0x18 0 x 24 0 x 28 0 x 34 0 x 42 hed Roof Opening Size 816 ' x 8 16' 816' x 1216' 816' x 1616 ' 1216 ' x 1216' 1 2 !6 ' x 1 816 ' 1 216' x 2416 ' 14'/,' x 24%' 30%' x 12%' 30%' x 18%' 30%' x 24%' 30%' x 28%' 30%' x 34%' 30%' x 42%' 12%' x 6%' Free Areo* Shipping Weight 41 sq. in. 4 % pounds 61 sq. in. 6% pounds 81 sq. in. 7% pounds 104 sq. in. 8% pounds 156 sq. in. 10% pounds 208 sq. in. 12 % pounds 258 sq. in. 14 pounds 258 sq. in. 7 pounds 387 sq. in. . 9% pounds 516 sq. in. 11 % pounds 602 sq. in. 13 pounds 731 sq. in. 15 pounds 903 sq. in. 17/2 pounds 54 sq. in. 1 10% pounds Louvers Per Ctn. 6 6 6 6 6 6 6 2 2 2 2 2 2 6 ATIONMASONRY 16'x 6" 45 sq. in. 4 pounds 6 IORXAIRI VENTS- 6 x 5Vt 14%'x 4' 24 sq. in. 2 pounds 6x9 14/2' x 7' 45 sq. in. 3 pounds xclusive of louver obstruction but without allowance for screening. 6 6 OR'A1R2VENT5'.. 1 x 5V. 9%' X 4' | 6 x 5% 6x9 14 %" x 4" 14%' x r 1 6 sq. in. 24 sq. in. 45 sq. in. 1 16 pounds 2 pounds 3 pounds 6 6 6 MULTI-PITCH MODEL 712 Pitch 7-12 8-12 9-12 10-12 11-12 12-12 Free Area 1 44 sq. in. 1 29 sq. in. 119 sq. in. 1 1 2 sq. in. 1 06 sq. in. 1 00 sq. in. Shipping Weight 1 0 pounds 10 pounds 10 pounds 10 pounds 10 pounds 10 pounds Louvers Per Ctn. 6 6 6 6 6 6 MULTI-PITCH MODEL 712 JR. 7-12 8-12 9-12 10-12 11-12 12-12 82 sq. in. 74 sq. in. 69 sq. in. 66 sq. in. 62 sq. in. 59 sq. in. 916 pounds 916 pounds 916 pounds 916 pounds 9 V2 pounds 916 pounds 6 6 6 6 6 6 MULTI-PITCH MODEL 58 5-12 6-12 7-12 8-12 1 60 sq. in. 1 43 sq. in. 1 29 sq. in. 1 20 sq. in. 14 pounds 14 pounds 14 pounds 14 pounds 6 6 6 6 MULTI-PITCH MODEL 58 JR. 5-12 6-12 7-12 8-12 1 08 sq. in. 96 sq. in. 88 sq. in. 81 sq. in. 13 % pound: 13 /- pounds 13 % pounds 13 % pounds 6 6 6 6 Provide 16 sq. in. free ventilation area for each 1 sq. ft. of ottic area for best condensation control. Louvers should be installed to provide cross ventilation. SECTIONAi^TRfANGULAIl^LOUVER? Pitch 5-12 Net Free Areo 428 sq. in. Opening Required 94 % " X 19%'' Shipping Weight 15% lbs. Packaged 2 per carton CU-PO'-VNT:CUPOLAJ.OUVERS Free Area Over-All Height Over-All Width Body Average Dimensions Vane Height MODEL 3 61 0 sq. in. 29" 40" x 40" 23"x 33" 25" MODEL 7 852 sc. in. 29" 40"x 40" 33"x 33" 25" BB007 0671 h/60 > 300 WEST ADAMS STREET, CHICAGO 6, ILLINOIS t l\ i. f.V BB007 0672 but it takes more than building materials Extensive as this catalog of building materials is, if does not indicate all that United States Gypsum offers you -- to help you build your business. Other essen tial factors are: -- developing modern materials and methods to encourage build ing and expand your market. jinvtc: -- to architects, builders and deal ers-- furthers the cause of more economical, more efficient build ing. If includes the work of more than 750 U.S.G. sales represent atives. I Haustan)iTeja4c^.! tlmHanapalhlilnJagj*^ r JodoonUlfc&Frn KaiuaGfyRMais^r' I- _v TT L i: 13 STATES G Y P S U Mi BB007 0674