Document ppDqa0Q08k74Vom03pmx3RkZB

'LAINTIFF'S EXHIBIT LATH AND PLASTER PRODUCTS BB007 0557 IMPORTANT TRAOE-MARIC 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 ex clusive property of this company and cannot lawfully be used in connection with the products of any other manufacturer. ,' ' - - Developed in modem research laboratories, thor oughly tested in the field, manufactured to conform to the highest standards of the building materials in dustry, products bearing the trade-mark of the United States Gypsum Company are uniformly excellent. CrPStlMlR' T~ [ r r r [ r [ r c c c I RED TOP Plaster and Finishes, Lime, and Insulation ROCKIATH Gypsum Lath ^ >- BONDCRETE Plaster for Concrete Surfaces ORIENTAL Colored Plaster and Stucco Finishes SABINITE Acoustical Plaster CHAMPION Gauging Plaster STAR Gauging Plaster ELDORADO Cement Plaster IMPERIAL Finishing Plaster COVER COAT* Finishing Plaster GRAND PRIZE Finishing Lime IVORY Finishing Lime MORTASEAL Masons Lime SNOW DRIFT Hydrated Lime PYROBAR Gypsum Partition Tile : COLOR-RITE* Metal Lath THE STEEL HEART OF PLASTER Metal Lath TRIPLE-VENT* Basement Sash TRUSSTEEL Truss Designed Studs BRACE-TITE* Attachment Clips BRIDJOINT Attachment Clips WHITE STAR Dental Plaster TEXOLITE Paint Products USG Gypsum, Lime and Steel. *AII but those trade-marks indicated by * are registered in the U. S. Patent Office. R8-2 Copyright 1949 United States Gypsum Company c r c c c c c c0 0 o o :o [: ui C O NTE NTS 1 " M ] 4 A--- 'l LATH AND PLASTER PRODUCTS GYPSUM ? LASTS R S AND 3UILDING LIME Basecoat Plasters Finishing Plasters Finishing Lime Masons' Lime Remedies for Plaster Problems plaster s.^sss and plastering -systems ROCKLATH Plaster Base PYROBAR Gypsum Partition Tile Metal Lath Attachment Systems Using ROCKLATH Metal Lath Attachment Systems TRUSSTEEL Studs 2" Solid ROCKLATH and Plaster Partition 2" Solid Metal Lath and Plaster Partition fublcih3 oy UNITED STATES GYPSUM COMPANY Pog* 8-9 10-15 16-19 20-21 22-23 24-25 26-27 28-31 32-33 34-41 42-45 46-47 48-49 50-51 52-53 BB007 0559 I There are vast deposits of gypsum throughout the world. It is particularly common in Canada and the .-=* T 1 -'i==Y=*] United States, where the mineral is converted into J a wide range of useful building materials. JJ I Lath, plaster, partition tile, and other high quality j building materials are made from properly proc 1 the fireproof J essed gypsum by the United States Gypsum Company. These products are readily available >1 building material to dealers from many U.S.G. mills located through i out the country. i J 6 ...GYPSUM abundant lightweight strong fireproof ; By U.S.G.'s modem methods, crude gypsum is They are durable and withstand normal usage fc transformed into high quality building materials. the lifetime of the building. These USG products are uniform and depend Gypsum building materials are incombustible l able. Rigid quality controls at every plant and themselves, and provide remarkable protectior frequent tests in the great U.S.G. research labo I ratories maintain their unsurpassed quality. against fire to the other materials used in the building, as well as to the building's contents Because gypsum is adaptable, light in weight, strong, easy to handle--and because it is fireproof GYPSUM IS FIREPROOF--whether it be in lath plaster, partition tile or any other form. ix --it is the basic ingredient of many building \ materials. In fact it is MORE THAN FIREPROOF--it delay: i The remarkably light weight of gypsum building the progress of fire by shielding combustible ma i materials is demonstrated by PYROBAR, U.S.G.'s terials. In the language of chemistry, gypsum i: partition tile, lightest of all such masonry units. hydrous calcium sulphate--calcium sulphate chem i Gypsum building materials are made more than ically combined with water. This "dry water" ot adequately strong, thereby adding strength to crystallization comprises 21% of the weight or the frame of the building. gypsum. I 8B007 0 562 I 7 Gypsum, the fireproof building material ] H When exposed to fire, intense heat attacks the of uncalcined gypsum stands against the flames, gypsum and little by little drives the water out of temperatures on the other side cannot become J it in the form of steam, a slow process known as much hotter than the boiling point of water (212 F.). calcination. The framing cannot ignite as long as the gypsum _J As fire struggles to eat through a gypsum ma- protecting it is intact. =, terial by driving off this water of crystallization, -J it is repeatedly attacking new layers of uncalcined m gypsum. The temperature behind the material -1 does not reach the ignition point of ordinary com- bustibles until all the water in the gypsum has been released and driven off. "j Thus it becomes evident that gypsum is not only ^ incombustible, but in addition it fights fire because "1 of its reluctance to transmit heat. J Think what this means as a guard for wood "| construction protected with gypsum lath and The National Bureau of Standards in an official report assigns to wood stud partitions with Vt' perforated gypsum lath and '/i* gypsum plaster sanded (2:1) (2:1) a fire resistance rating of 1 hour. A six-inch partition built of gypsum tile and gypsum plaster will turn back the flames for hours. The fire-fighting action of gypsum, while much slower, 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. gypsum plaster walls and ceilings. Wood burns at about 400 F.--but as long as a saving barrier 1 83007 0563 8 Walls and Ceilings as you want them with adaptable Lath and Plaster RED TOP plaster and ROCKLATH gypsum lath or USG COLOR-RlTE metal lath are favored for fine inferiors 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. OJ 03 a o o a ""1 1 vosun NO c f r ^ i1 /i and Building Lime "N V --5 BB007 O5o^ 10 Cement plaster Wood fiber piaster Neat gypsum plaster requiring the addition of an aggregate and water on the job. Use only where good plastering sand, or other good aggregate is available. Red Top Cement Plaster is lowest in cost of the four types of gypsum basecoats described on this page. It is mixed with low cost aggregate, increasing bulk and coverage. Red Top Cement Plaster requires the addition of an aggregate proportioned strictly according to speci fications. Use of too much aggregate drastically re duces finished plaster strength. See data, page 12. Mill-prepared gypsum basecoat plaster contair finely shredded selected wood fiber for use wh extra strength is desired. Requires the addition water only on the job. The strongest of the four types of basecoat plast has greater compressive and tensile strength, grec resistance to lateral impact, greater surface hardm greater resistance to cracking. Also provides fr 30% to 130% greater fire resistance than sane plaster and is about 25% lighter in dead load, greater coverage and v/orkebility, up to one p sand may be added in mixing, although strength c fire resistance are then somewhat reduced. Sanded plaster Sanded at the mill to insure correct gradation and proper proportioning of sand. Red TOP Sanded Plas ter is manufactured for use in areas where good plas tering sand is costly or not available. Ready to use -- requires addition of water only on the job. Better than most job-sanded plasters because only selected aggregate, properly proportioned, is used 6its j I Ji GYPSUM piaster . FOR concrete ( l jeitn it*n nn Bondcrete plaster Factory prepared gypsum basecoat plaster special formulated to bond with rough interior monolithic co Crete surfaces. Requires addition of water only or ^ job. Total thickness of plaster, including finish coat, n< to exceed %" on concrete ceilings, s/t" on walls. Apply only on concrete surfaces properly prepare for plastering and free from oil from form board Full directions are printed on the bag. J BB007 0566 \ Tlie leadership enjoved 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 be 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 every 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 Gypsum 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 piasters 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. Packed in convenient 100 lb. multi-wall paper bags. When in doubt read the instructions on the bag Red Top piasters will give the most satisfactory results when instructions are carefully followed. Observe the directions on the bags, 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. They should not be used where contact with excessive moistureis expected, whether on the exterior or interior. Only Red Top Bondcrete (see page 10), or Red Top Cover-Coat Finishing Plaster (see page 17), should be applied over concrete. Special care should be taken in preparing the bonding surface in accordance with directions printed on the bag. Gypsum basecoat plasters are not recommended for application over surfaces that ha\c been treated with asphalt or other bituminous compounds, nor for appli cation directly over ulterior surfaces of exterior ma sonry walls. Basecoats 11 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 i ;il com pletely calcined; actually fight fire. 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. Manufactured on a nationwide basis in 23 modern mills, RED TOP plasters are held to rigid specifications. Their setting time is stabilized to minimize the hazards of impure additives, unexpected job con ditions and seasonal irregularities. RISK RED TOP plasters are made to withstand normal usage for the life of the building. (Compressive and tensile strength data Page 1 3.) 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. /. i *6 l CD GD O o o Ul O' -J u/vuaTURES to plaster For ideal strength and hardness, the proper proportion of aggrega to plaster must be used Illustrations show reduced hardness with increasing proportion of sand. Recommended proportions of gypsum cement plaster to sand by weight and approximate covering capacity at recommended grounds Gypsum Piaster Base: Lath Insulation Lath Metal Lath Brick-Clay Gypsum Tile Tile Two Coat Work Scratch Doubleback Plaster 1:2'A 1:2 Vi -- 1:3 1:3 Three Coat Work _Scratch Coat Plaster 1:2 1:2 1:2 Brown Coat Ploster 1:3 1:3 1:3 -- -- Coverage Range Sq, Yc;. Pe; Ton 175-220 175-220 90-125 175-200 20C-240 Water All gypsum plasters require the addition of wate the job. As a general rule any water iu to drink is able for mixing plaster. Sana Neat or gypsum cement plaster is designed to mixed with an aggregate on the job. Sand is the n commonly used plaster aggregate because it is t nOmical an.: generally available. Proper proportioning ami gradation of sand are m important in determining bulk and working quali; of plaster, and the ultimate quality of the finished w. Over-sanding or the use of an excessive amount fine sand, each reduce the strength and hardness gypsum plasters. The American Society forTesiing Materials in AST Designation C35-39 has established the following spe fications which are regarded as standard for the prop gradation of itood plastering sand: Sire of Sieve Percentage of Sand Reta Max.. Min. No. 4 {4760-micron) No. 8 {2380-micron) No. 30 |590-micron) No. 50 1297-micron) No. 1 00 (1 49-micron) 0 10 80 95 .. 0 15 70 95 The amounf of material finer than a No. 200 {74 micron) sieve shoii not exceec 5%. BB007 056 Basecoat 13 \ Lightweight plaster aggregates The use 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 job 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. When used as a plaster aggregate it must conform with the ASTM Specifications for Plastering Sand and weigh from ~Yi 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 greater than that with vermiculite and nearly equal to that with sand. Premixed plasters containing the correct propor tions of gypsum plaster and perlite are available in some 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 at: aggregate for plastering, vermiculite must conform in particle size to ASTM Designation C35-39 for gradation of plaster ing sand, and shall weigh between 7Y ai.d 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. Premixed plasters containing the correct pro portions of gypsum plaster and vermiculite are avail able in some markets. 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, but are lighter in weight and have greater fire resistance. Recommended proportions of lightweight aggregate per 100 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-coot plaster work over gypsum or fiber insulating lath not more than 2 Vi 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--strength data Wood Fiber Neat Cement Plaster: Sand 1:1 1:2 1:3 Cement Fla-ter Vermiculite Perlile 100 lbs.: 2 cu. ft. 00 lbs.: 3 cu. ft. 100 lbs.: 2 cu. ft. 1 00 lbs.: 3 cu. ft. 2600 2100 1200 75C 500 300 1000 650 440 245 170 120 130 90 165 105 BB007 0569 14 STORAGE, MIXING, APPLICATION [ [ Plastering specifications may indicate either two-coat or three-coat work. Two-coat work consists of one base coat and one finish coat, and i* is generally used over a masonry plaster base and often over gypsum or insulation lath. In three-coat work there are two separate base coats and a finish coat; three-coat work is required over metal lath. The first coat is known as the "scratch" coat anc the second coat as the "brown" coat. Two-Coat Work ( r I f ' j ^ Where base coats are applied by either the "single coat" or "scratch-double-back", the overall plastering operation is termed two-coat work. The basecoat plaster is applied to slightly less than the thickness of the grounds and rodded and darbied to a true, even surface left rough enough to take the finish coat. f t r Three-Coat Work The scratch coat is sanded 2 parts of sand to 1 part of plaster by weight (for vermiculite or perlite, proportion by volume of aggregate to weight of plaster). It is applied to a thickness of approximately 14' over the face of the latf and then cross-raked before it sets to provide a mechanical key for the brown coat. The brown coat is sanded 3 parts of cggregate to 1 part of plaster, and is applied dii ctly to the set scratch coat. The brown coat is used to fill out to just slightly below the grounds and is rodded ar - darbied to a true, even surface. It is left rough enough to receive the finish coat. as as o o -w o Ul -J QV Basecoat 15 How to use Basecoat plaster Red Top plasters are the best that research and efficient production methods can provide. Nevertheless, to as sure best results care and skill should be exercised in handling and application. U.S.G. provides detailed di rections and complete specifications for proper use of each 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 dry, well ventilated warehouse. Ro tate stocks by shipping oldest material first. Red Top plasters are mixed for 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 BB007 0571 16 RED TOP' $ GAUGING 'PLASTEB ,..mI iiitii i j; / B{D U)P CIJAMPIOIW g ,T" ! Sj, GAUGING plaster lI Available brands, setting times and finishes Brand Set with Lime Putty RED TOP CHAMPION Gauging Piaster (white] RED TOP STAR Gauging Plaster (white) RED TOP Gauging Plaster (gray) RED TOP Gouging Plaster (gray) RED TOP Regular Keenes Cement (white) RED TOP Quick Trowelling Keenes Cement (white) Quick set--10-15 min. Slow set--45-60 min. Slow set--45-60 min. Quick set--10-15 min. 3-6 hours 1 -2 hours Brand Type of Finish RED TO Trowel Finish Plaster 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. 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 iob 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 Ht" to 14". Several types of finish coat are i available, each designed to serve specific requirements. ! Lime-Gauging Finish Coat consists of bvdrated finish j lime or finishing quicklime soaked or slaked to putty j consistency, and blended in proper proportion with ! gypsum gauging plaster. For complete description and data on finishing limes, see page 20. i I j Gauging Plaster. The function of gauging plaster in a i lime-gauging finish is to provide initial set and strength ! and hardness to the surface finish. It is ground to the i proper fineness to blend readily and completely with the lime putty. To serve various job and market rej quirements, USG gauging plasters are produced in 2 setting times and in a choice of gray or white colors. I 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. Keenes 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 dry hydrated lime (100 lbs. lime putty) to 100 lbs. of Keenes cement. For "hard finish" limit the quantity of lime to 25 lbs. of dry hydrated lime (50 lbs. lime potty) to 100 lbs. of Keenes cement. 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, may be decorated safely much sooner than lime putty finishes, and contain nothing injurious to paint or other final decoration. BB007 0572 Finishing 17 ORIENTAL Interior Finish Plaster, integrally colored in a choice of 12 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 Sahoro Cream Ivory Tusk Ivory Harvest Buff Parchment Golden Buff Mist Gray Coensfone Sheil Pink Desert Rose Cool 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 time- and under different conditions. Oriental Stucco set.- ,-iowlv to facilitate proper finishing, minimizing unsightly streaks and shading. Will produce either period textures or smooth trowel, stipple sponge, rough coat or spatterdash finishes. Finish plaster data Applied over a base coat of portland cement, lime and sand. Coverage approximately 150-200 yds. per ton. Colon: White Pewter Groy Eggshell Ivory Sun Ton Stone Gray Copper Rose Alomo Buff Mission Creom Cascode Green Pueblo Tan Indian Coral Rancho Brown RED TOP COVER COAT Finishing Piaster, unlike all other types of plaster, bonds directly to smooth unpainted concrete surfaces and provides a smooth finish ready for decoration. Because Cover Coat bonds directlv to such surfaces, considerable time and ex pense are saved by using Cover 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 Covet. Coat requires the addition of water only on the job. It is applied in two thir. coats to a total average thickness not exceeding Is". Careful adherence to directions on the hag for surface preparation is necessary. Coverage, 300-700 vds. per ton depending on surface. Mix by weight of dry materials: Color Finish Texture Hardness in Kilograms (2) Workability Coverage Gouging Plaster to L;me 1:2 White or Groy (1) Smooth 34 1 1 ton gouging 2 tons lime cover approx. 1000-1 400 yds. Cuick Trowelling Keenes to Lime Gypsum Gypsum Trowel Finish Float Finish ORIENTAL Finish 2:1, Medium Hard j 4:1, Hard NEAT NEAT NEAT Wmte Smooth White Smooth White Smooth White or Gray 12 Colors Float Float 50 70 55 (See Note 3) (See Note 3) 3 6 25 4 2 tons Keenes 1 ton lime cover opprOx. 850-1200 yds. 4 tons Keenes 1 ton will 1 ton will 1 ton will 1 ton lime cover cover cover cover approx. approx. approx. approx. 1300-1700 yds. 350-400yds. 250-275 yds. 250-300yds. (1) Gray with "local" gauging plaster. (2) Kilograms required to force a 10MM ball .01" into plaster face. (3) These ore hard finishes but the aggregate in the surface does not permit an indication with this test. BB007 0573 18 Special plasters In addition to its complete line ot' wall plasters, U.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 they 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. 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 gypsum and remarkably free from grit and other foreisn elements. Extremely find grind--exceptional quality. These plasters are very well known under the brand names: White Star Dental Plaster and USG Ortho pedic Plaster. RED TOP Partition Tile Cement--a specially prepared gypsum cement used with water and sand as a mortar for setting interior partitions of gypsum or clay tile and gypsum fireproofing and column covering. Red Top Par tition Tile Cement makes an easy working, economical mortar having early high strength that provides strong mortar joints for any non-bearing partition tile work. SABINITE acoustic 8B007 0574 Finishing 19 plaster absorbs unwanted noise..-incombustible...provides wall and ceiling beauty...easily applied SABINITE Trowel Finish (M) A highly efficient acoustical plaster, prepared to pro duce a continuous surface with exceptional sound ab sorbent qualities. Sound absorption. With countless sound traps, Sabinite Trowel Finish absorbs a high percentage of all noise that strikes its surface. Has a Noise Reduction Co efficient of .60 (see table below). Fire resistance. Basically mineral, it is incombustible. Flexible in use. Like any plaster, Sabi.nite Trowel Finish is adaptable to anv architectural design. Its continuous trowel finished surface lends beauty to any decorative plan. For use on any ceiling area and on sidewalls not subject to contact. High light reflection. Laboratory tests indicate reflec tion of 64% for Sabimte Trowel Finish Oyster White. Easily applied. Sabi.nite Trowel Finish 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. Redecoration. Sabinite Trowel Finish may be re decorated with Texolite paint (Standard or Imperial). Apply according to U.S.G. directions. Tests by a nation ally recognized laboratory showed Sabinite Trowel Finish had no loss in noise reduction coefficient after 2 spray coats of Imperial Texolite were applied. Colors. Available in Ovster White. Colonial Cream, Antique Ivorv, Spanish Buff and Caenstone. Color samples are available on request. Over existing ceilings. Sabinite Trowel Finish may be applied over most existing surfaces through use of a special asphalt emulsion bonding coat. Refer to U.S.G. representative or to technical literature for data. SABINITE Float Finish (F) A highly efficient acoustical plaster used where a float finish is desired. Sound absorption. Noise Reduction Coefficient of .55 (see table below). Fire resistance. Basically mineral, it is incombustible. High light reflection. Laboratory tests indicate reflec tion of 54% for Sabinite Float Finish Oyster White. Flexible in use. Similar to Sabinite Trowel Finish, Sabinite Float Finish is economical, easily applied. Maintenance. Sabinite Float Finish plaster may be cleaned with a vacuum cleaner using hose and brush attachments. Redecoration. Sabinite Float Finish may be redecorated with Texolite paint (Standard or Imperial). Applv ac cording to directions. See statement under Sabinite Trowel Finish for results of redecoration tests. Colors. Available in same colors as Sabinite Trowel Finish. SABINITE 38 A float finish acoustical plaster specially prepared for sound conditioning in locations subjected to high moisture conditions, such as ceilings in shower rooms, ceilings and sidewalls in swimming pools, etc. Sound absorption. Noise Reduction Coefficient of .50 (see table below). Fire resistance. Basically mineral, it is incombustible. Maintenance. Sabinite 38 plaster may be cleaned with a vacuum cleaner using hose and brush attachments. Redecoration. It may be painted with Texolite Impe rial paint applied according to U.S.G. directions, which will vary according to conditions encountered. Direc tions available on request. See statement under Sabinite Trowel Finish for results of redecoration tests. Colors. Available in White only. SABINITE Acoustical Plasters ore ordered on a yardage basis . .. sufficient material is provided for application to a thickness of Vi inch. All standard colors are immediately available. Sound Absorption Data Sabinite Type Thickness 128 256 512 1024 2048 4096 NRC Authority Trowel Finish (``M'') Vi inch .18 .24 .45 .78 .85 .83 .60 National Bur. of Stds. Float Finish ("F") Vi inch .19 .22 .43 .80 .75 .75 .55 National Bur. of Stds. "38"...................... Vi inch .25 .26 .32 .60 .76 .50 Riverbank Lab. j BB007 0575 20 * ,,tl MroiATii FINISHING UME j ; , ,mi sum ww ; (! 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 white . . . 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 befc-e using to obtain maximum plasticity. Double Hydrated Finishing Lime Brand Ivory Type Material Dolomitic Double Hydrote Hydrated Finishing Lime Brand Grand Prize Red Top Red Top Red Top Type Material Dole :itic Hydrate Dolomitic Hydrate High Calcium Hydrate High Calcium Hydrate Finishing Quicklime Brand Red Top Red Top Red Top Type Material High Calcium Quicklime High Calcium Quicklime High Calcium Quicklime U.S.G. Mfg. Mili Genoa, Ohio - U.S.G. Mfg. Mill Genoa, Ohio Genoa, Ohio Farr.ams, Mass. New Braunfels, Tex. U.S.G. Mfg. Mill Evens, Wash. New Braunfels, Tex. Farnams, Mass. Size Container 50 lbs. Approximate Coverage per ton 700 yds. - Size Container 50 lbs. 50 ond 25 lbs. 50 lbs. 50 lbs. Approximate Coverage per ton 700 yds. 700 yds. 700 yds. 700 yds. Size Container 60 lbs. 50 lbs. 80 lbs. Approximate Coverage per ten 1000 yds. 1000 yds. 1000 yds. ,, g o Ul -J O' Finishing 21 V The purpose of finishing lime is to provide plasticity and bulk 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 care fully controlled processes. Dolomitic hydrates from the northwestern Ohio fields, where U.S.G. operates the largest 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 completely hydrated, highly plastic putty. This permits soaking by either hand or mechanical mixing, speeds up job oper ations, and assures freedom Lorn further expansion 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, ea.working putty is developed without long soaking. Use 5J d-6 gal. water per 50 lb. bag of lime, sifting the lime into the water. Mix thoroughly in a mechanical mixer; or hoe in a box, screen, and the putty is ready for use. If overnight soaking is desired, sift lime into the water using same amount as indi cated above; screen putty before using. For the finish coat, blend together gypsum gauging plaster and lime putty exactly as shown for regular hydrated finishing lime. Meets ASTM Designation C206-49 type S, and Federal Specification SS-L-351 type F, including the added requirement of not more than 8% unhydrated oxides. GRAND PRIZE and 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 6-6]A gal. of water per 50 lb. bag of lime. Blend together gypsum gauging plaster and lime putty in the propor tion of 1 part gauging plaster to 3 parts lime putty by volume (1 part dry gauging plaster to 2 parts dry lime by 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. Propcr 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 ASTM 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. BB007 0577 22 Double Hydrate Hydrate Quicklime 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. 1^ IbS o 1! ? :!* pUlVtUll-tD MASONS quicklime ,,,,,, ii.m 1 *V1 Recommended Mortar Mixes (Portland Cement*Lime-Sand, b'; volume) Above grade 1-2-9 Below grade 1-1-6 Specialized use Abnormal strength 1-2-7 to 8 1-1-4 to 5 Excessive continuous moisture conditions 1-14-3 MORTASEAL Double Hydrated Masons Lime--Tin latest development in building lime. Requires no soak ing as it develops its maximum plasticity immediatelv Its superior working qualities, water retention prop erties and maximum sand carrying capacity assure higl quality, economical masonry mortar. Mix by volunu with portland cement, sand and water to specifiei proportion. Meets ASTM Designation C207-49 type S and Federal Specification SS-D351, type M. including the added requirement of not more than 8% un hydrated oxides. Advantages of using Mortaseal double hydrated lime in masonry mortars: Easier working -- Mortaseal transforms mixes with cement and sand into plastic, smooth-working, uniform mortar. Better bond--Plastic Mortaseal in mortar makes it easier to get full joints and maximum bond because it retains water remarkably well and stiffens slowly. Weather-resistant -- Full joints and proper bond help produce walls that repel rain, snow, ice and wind. Lower cost--Maximum sand-carrying capacity, less retempering, faster construction and easier laying--all these factors add up to lower cost for finished walls. Better walls--Exceptional plasticity, remarkable waterretention, adaptability to volume changes, slow stiffen ing and better bond--all help to produce better masonry walls. RED TOP Masons Hydrate--The smooth working qual ities of Red Top Masons Hydrated Lime increase the plasticity and adhesive properties of portland cementlime-sand mortars. Full plasticity is developed by soak ing tC putty ovc-r.iiidit, usin. approximately 6H gal. water per 50-lb. bag. Mix with portland cement, sand and water by volume in specified proportions. Meets ASTM Designation C207-49 type N, and Federal Speci fication i.'-L-351, Type M. RED TOP Masons Quicklime--Uniform qualitv quick lime with high putty yield and excellent plasticity. Im proves the working quality and sand-carrving capacitv of masonry mortars. After slaking it is best to age pul verized and ground quicklimes at least 16 hours before using. Mix with portland cement, -and and water bv volume in specified proportions. Meets ASTM Desig nation C5-26 and Federal Specification SS-Q-351. RED TOP General Purpose Hydrated Lime--Spe cially processed for consumer use around the home and on the farm. Ideal for such purposes as soil sweet ening of lawns and gardens, whitewash, sanitation around barns, etc. Attractively packaged and shipped in convenient master containers. BB007 0573 Masons 23 Double Hydrated Masons Lime Brand RTASEAL Type Material Dolomitic Double Hydrate Use Masons U.S.G. Mfg. Mill Genoa, Ohio Size Container 50 lbs. Approx. Futty Yield Per Ton 45 cu. ft. Masons Hydrate Brand Top Top Top dw Drift Type Material Dolomitic Hydrate High Calcium Hydrate High Calcium Hydrate Use Masons Masons Masons U.S.G. Mfg. Mill Genoa, Ohio Evans, Wash. & Farnams, Mass. Size Container 50 lbs. Approx. Putty Yield Per Ton 45 cu. ft. 50 lbs. 45 cu. ft. New Braunfels, Texas 50 lbs. 45 cu. ft. Masons Quicklime Brand i Top i Top * Top Type Material High Calcium High Calcium High Calcium Grind Pulverized Pulverized, Fine Grain, Super Fine Pulverized, Pebble Use U.S.G. Mfg. Mill Masons Evans, Wash. Size Container 60 lbs. Approx. Putty Yield Per Ton 85-90 cu. ft. Masons Farnams, Mass. 80 lbs. 85-90 cu. ft. Masons New Braunfels, Texas 80 lbs. 85-90 cu. ft. General Purpose Hydrated Lime Brand i Top i Top > Top > Top Type Material Dolomitic Double Hydrate High Calcium Hydrate High Calcium Hydrate High Calcium Hydrate Use General Purpose General Purpose General Purpose General Purpose U.S.G. Mfg. Mill Genoa, Ohic Evans, Wash. Size Container 5, 10, 25 lbs. 5, 10 lbs. Farnams, Mass. 5, 10 lbs. New Braunfels, Texas 5, 10 lbs. Neutralizing Power 140 126 126 126 Agricultural and Spray Hydrate RED TOP agricultural hydrate is used for soil sweetening and general sanitation purposes, Red top spray hydrates are used for mixing insecticides and fungicides, and may' also be used for dusting. Brand ) Top > Top Type Material Dolomitic Hydrate High Calcium Hydrate Use U.S.G. Mfg. Mill Neutraliz ing Power Agriculture Genoa, Ohio 160 Agriculture Farnams, Mass, and New Braunfels, Texas 126 Soil Coverage per 100 lbs. 3000 sq. ft. 3000 sq. ft. BB007 0579 24 i I Because of variations in marked practices, aggregates, plaster bases, weather and workmans: ip, this chart has been prepared to assist in the understanding. diagnosis and treatment of job problems. CONDITION MATERIALS CAUSE REMEDY OR PREVENTION 1. Connected vertical and horizontal cracks at somewhot regular intervals, often in "stepped" pattern. Plaster over any sheet lath: fiber, metal, or gypsum. Ploster too thin. Weak plaster. Loth not properly applied. Apply another coat of plaster. See "Weak Soft Wails" opposite page. Apply Metal Lath and replaster. 2. Cracks around and over openings. 3. Fine cracks, random pattern usually less than 12* apart. Map cracks Crazing Chip cracks Fine crocks 4. Crock at wall or ceiling angles. 5. Ceiling cracks not due to any of the above causes, or to structural failures. 1. Water soluble mildew-like fuzz on surface generally white but may be colored. % Can be brushed off. color; 2. Streaky discolorations. SURFACE STAINS and; BLEMISHES-- 3. Streaked--joinings snow. "Slobbers." 4. Light and dark spots due to causes other than "dry out." Plaster over brick cloy tile, UnteJ construction is poor. gypsum tile or cement block Improper door buck construction. Plaster over gypsum lath and other bases (except rarely metal lath). Plaster too rrttn. Weak plaster. Failure to use Striplath. Expansion of wood frames. Cracks in gauged lime putty over gypsum base coat. Insufficient gauging piaster. Base coat too wet or too dry when finished. Insufficient trowelling. Slow set gauging plaster. Cracks in base coat over brick, clay tile, gypsum tile or cement block. Shrinkage due to high suction. Undersanding of base coat. Piaster over gypsum lath. Thin plaster coat, or failure to use Cornerite, or poor lumber in framing. Plaster over brick, clay tile Failure to wedge at ceiling, or to or gypsum tile. interlock or tie walls together. Plaster on metal lath or gypsum lath. Metal lath too light, not lapped or not properly tied. Thermal shock. Plaster on metal lath or gyp improper spacing of channels. sum lath on channel frame. Thermal shock. Base coat or finish plaster over concrete, brick, or cloy tile. Efflorescence. As masonry units dry out, water-soluble salts from the masonry are being deposited on the surface of the plaster. Lime finishes gauged with gauging plaster or with Keenes Cement. Lime and gauging not thoroughly mixed. Too much water used in trowelling. Efflorescence from masonry. Dirty tools or dirty water. Gypsum trowel finish. Float finish. ImproDf.' trowelling--too much water on brusn. Dirty water. Improper floating or too much water used in floating. Variable suction in basecoat. Remedy--patch. Prevention--follow manufacturers' specifications. Apply onother coot of plaster. See "Weak Soft Walls" opposite page. Cut cut ond repair. Prime frames--cut basecoat free of ground. Strip off finish and replaster with correct mix. Strip off finish and refinish over partially dry basecoat. Water trowel sufficiently. Add moulding plaster or accelerator to gouging. Spray water on masonry to reduce suction. Remove plaster and repiaster with correct mix after adjusting suction. Cut out and patch. Add Cornerite if possible. Prevent by correct construction. Prevented by following manufacturers' specifications. Control job temperatures from su^ en change. Prevent by proper spacing. Prevent by job temperature control. Eliminate source of moisture, furr, lath, and repiasfer. Prevented by thorough mixing. Remedied by painting with white TEXOUTE Imperial point. Point with white TEXOUTE Imperial Paint. See condition 1, above. Wash tools and obtain clean water. Remedied by pointing os obove. Paint with white TEXOUTE Imperial paint. Paint with TE/OUTE Imperial pair* to get uniform color. Dampen basecoat uniformly. 5. "Pops"--peak-liVe projec tions which fall out making little craters or pits; often with fine radial cracks 6. Same as (5) above except pit is discolored tan or greenish ton. 7. Blisters (do not confuse with (5) above}. Lime base coats and finish. Unslaked lime in mortar which slakes and swells after it is applied* Gypsum hose coots and finishes. Gauged lime putty finish. ( Retarder spots. Lumpy or undissolved retarder added at job. Retarder I lumps swell or "pop" when wet. Base too green, insufficient suction; or too much water used in trowelling. Finish lime too plastic. Gypsum trowel finish. 8. Uneven color (not due to texture shadows). Interior colored plaster finishes. Base coat too wet when finish applied. Uneven absorption of base coat, or too much water used in finishing, or dirty box and tools, or variation in water content of successive botches. Finish not dry. Remove core of "pops" and patch. Prevented by using double hydrated lime. Cut ou spots and patch. Prevented by screening retarder thru 40 mesh screen. After finish has "set," trowel with very little water. Cut putty with small omount fine white sand or increase amount of gauging plaster. After finish begins to "set," trowel with very little water. Prevented by following specifications. Remedied by pointing with TEXOUTE Imperial paint. Ventilate to dry wall properly. 9. Uneven color--light, or "flat" spots in light colors (See 1 3 below). 10. Uneven color--dark colors. 1 1. Yellow surface stoins-- "yellowing." 12. Point peels (new work). Oil paint over gauged Painted too soon after plastering Repaint with TEXOUTE primer ond TEXOUTE paint. lime putty finish. (alkali in lime saponifies paint); or, pigment not lime-proof. Any colored paint over any plaster finish. Color variation due to non-uniform Apply lEXOUTE Sealer ono repaint. absorption. Bincr*- strikes in unevenly. Contaminated sand. Prevent by using dean sand. ^ Any finish over any ploster Burning green wood in fireplace. Improve draft to stop smoke. base. Open gas heaters not vented to Vent hecters to outside. q Oil paint over any finish. outside. Tar paper back of plaster base. Creosote treated framing lumber, tar, or tar derivatives used around job. Weak finish (worked thru set). Use aspnalt paper. Avoid source of air contamination. Seal with TEXOLTE Sealer. Redecorate. Patch witn patching ploster end point with O ^ VJ TEXOUTf point. Ploster no', dry when painted. Repam* after oreas ere completely dry ond -w : r.. --------- - -I ,-- loose paint removed. F ------------- . c ,..uu Ttv^iiTc i Remedies 25 3B007 0531 CONDITION 1. Soft, white, chalky surfaces, occurring during hot, dry weather, usually near openings. MATERIALS Gypsum base coat over any plaster base. CAUSE Dry-out. Too much ventilation has re moved woter before piaster could set. 2. Soft, dark, damp surfoces occurring during damp weather. 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 wall. Gypsum base coot over any ploster base. Gypsum base coat over any plaster base. Sweat-out. Too little ventilation has allowed water to remain in wall after plaster set. Some of plaster has re-dissolved. Frozen plaster. Gypsum base coat over any plaster bose. Use of too much aggregate. Gypsum trowel finish over ony base coat. Dry-out or retempered finish. 6. Soft, weak wall. 1. Separating from ploster base. 2. Separating from plaster base. BOND FAILURE! 3. Separating from plaster base. [ Gauged lime putty finish over any base. Gypsum plaster over gypsum lath or fiber insulating lath. Gypsum plaster over metal lath. Gypsum plaster over masonry. Insufficient gouging plaster, retempered material, or insufficient trowelling. Too much aggregate, freezing, or addition of lime or portland cement. Too much aggregate. Freezing. Lock of fiber. Excessive suction. Masonry non-obsorbent; has glozed surface. Efflorescence. 4. Separating from ploster base. Gypsum piaster over concrete. Use of ordinary gypsum plaster. Gypsum bond plaster Surface oily, too smooth, dirty, or over concrete. efflorescing. I 5. Finish separating from Gauged lime putty finish Brown coot too smooth, too dry, too brown coat. over gypsum brown coat. wet or too weok; finish improperly opplied; incomplete hydration of finish lime. 6. Finish separating from brown coot. Gypsum float and trowel finish over gypsum brown coat. Brown coat too smooth. Brown coat too dry. Brown coat too weak. Finish improperly applied. 7. Finish sec "rating from brown coal. Colored interior finishes over brown coat. Brown coat not broomed. Thin finish not ground in. Brown coat too weok. 1. Soft walls for over 6 hours after application. Gypsum base coat over any plaster base. Dry-out, sweot-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. 2. Sets in box or sets on wall before it con be dorbied or stroightened. Gypsum base coat over any base. Quick set due to dirty water, tools and mixing equipment. Mixing too long. Quick set due to poor sand. Quick set due to error in manufacture. Quick set due to machine mixing. 3. Works hard or "short." Will not spread. Does not carry proper amount of sand. Gypsum base coat over any ploster bose. Aged or badly stored piaster. 4. Works hard or "snort." Will not spread. i Gypsum base coat over | any plaster base. Over-sanding. 5. Tough and short working, rubbery or lumpy lime putty. Gauged lime putty over gypsum base coat. Old materioi partially carbonated; warehoused too long. improper soaking, aging or slaking. 6. Lack of uniformity in set. Gauged lime putty over gypsum base coat. Low temperatures. Unusual temperatures. 7. Finish works hard. Gypsum finishes over base coat. Improper gauging. j Mixed too stir | bose too dry. REMEDY OR PREVENTION Remedy--Persistent spraying will set-up the dry oul areas. Prevention--Screen openings in hot, dry weather and sproy during setting period if necessary. Remedy--Dry the walls with heat and ventilation. Prevention--Heat and ventilote as soon as plaster has set. Close building, supply heat. When ploster has set, continue heat and ventilate. No remedy. Prevent by use of proper amount of aggregate. If drv-out treat as condition (1) above. Trowel well when set. If reiempered, no remedy except tear off and refinish. No remedy except to remove finish and replaster. No remedy except to repiaster. Repiaster with correct n.ix. Thow and allow to set ond dry, or replaster. Replaster with more fiber added, or use extra fibered plaster. Dampen masonry surfaces. No remedy. Prevent by hacking masonry surface. Eliminate source of moisture. Furr, loth ond replaster. Remove and reploster with BONDCRETE. Remove plaster. Cleon and roughen surface. Replaster. Where brown coat is cause, strip off finish, correct condition of brown coat ond replaster. Where finish is cause, refinish properly using completely hydrated lime. Roughen brown coat. Dampen brown coat until half green. Strip down to lath ond replaster. Apply as directed. Rouchen brown coat and refinish. F<n>s>. following application directions. Correct condition of base coat ond re-fmish. See "Weak, Soft Walls" above. Send samples to manufacturers' representative. Obtain good sand and water or accelerate plaster. Use clean water, tools, equipment. Reduce mixing time. Use good washec sand or odd retarder. Add retorder. Send samples to manufacturers' representative. Add retarder. Get fresh plastei, or use equal parts fresh and oced ploster, or use less sand. Correct condirons using proper proportions. 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 gauging in hot weother. Use proper type and amount of gouging ploster. Use more water. Addiv to half oreen bose. Sorav drv base 26 USG 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 in sulating--is today the most widely used plastering base. Metal lath -- including USG COLOR-RlTE metal lath--is second in variety of uses and vol ume produced. USG 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. Hol low 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 increasingly favored by pro gressive architects and builders. There is a tried and tested U.S.G. wall construc tion system and material for every type of job. ?8800 053? Plaster Bases and Plastering Systems STATES BB007 0533 28 \ ROCKLATH plaster base is a gvpsum 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 212c 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 86-; pounds per square foot is required to separate plastei from gypsum lath. The low cost of Rocklath. its ease and speed o erection as well as the savings in plaster it permits have made this plaster base the standard of valu throughout the country. Sizes--16 x 48 inches, % or Yi inch thick. (Also made 16Yi" wide in Pacific Coast areas.) Packaged 6 pieces or 32 square feet per bundh (Packaged 5 pieces, 3 sq. yds. per bundle in Pacif Coast areas.) Perforated ROCKLATH plaster base is identical in c respects with plain Rocklath, except that perforatioi are provided at regular intervals. These perforatioi allow the applied plaster to ''mushroom" through tl holes and form rivets to mechanically key the plast to the Rocklath, thus effecting both a mechanical ai a chemical bond. As a result of this dual bond, bearing partitions bu of wood studs, perforated Rocklath and gypsum ph ter sanded 1:2; 1:2, received a fire-resistive rating one hour in tests conducted by the National Bure of Standards. Perforated Rocklath plaster base is cut, fitted a applied with all of the speed and economy of pi; Rocklath. However, the perforations in perfora. Rocklath encourage application of the proper thi ness of plaster and reduce droppings and wastage. Sizes and Packaging--Same as Plain Rocklath. Long Length ROCKLATH plaster base is manufactu for two specific purposes: 1. For use in the 2-inch Solid Rocklath and Pla^ Partition System. This Rocklath is H inch thi 24 inches wide, and comes in ceiling height lent up to 12', with longitudinal V-joint edges. Fo comp.ele description of this studless, non-load fl ing partition system, see page 50 o." this Direct; 2. For use on furred masonry w..Iis. Lone Length Rf lath is manufactured thick, 2" wide, sqi edged, in ceiling height lengths up to 12 feet. L Length Insulating Rocklath. manufactured in same sizes, has a sheet of bright aluminum laminated to the back side at the mill. BBOC'7 0 534 ROCKLATH 29 Insulating ROCKLATH plaster base is manufactured by attaching a sheet of bright aluminum foil to the back of plain 16" x 48" or ?s" Long Length Rocklath. This lath, with the foil facing the stud space, has all of the advantages of plain Rocklath listed above, plus insula tion against heat and cold. It also provides an effective barrier to the passage of water vapor. With a M-inch air space next to the foil, Insulating Rocklath plaster base offers thermal insulation equiva lent to that of H-inch fiber insulation board. Aluminum foil is one of the best vapor barriers 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. See pages 30-31 for the complete story of Insulating RoCKLATH. Application of 16"x 48" ROCKLATH plaster base Nail-on construction Apply Rocklath face out, with the long dimension at right angles to the framing members. On walls, make end joints fall on different supports in alternate courses. On ceilings, stagger end joints as for side walls, or erect Rocklath so that the end joints are made con tinuous on a support, in which case end joints should be covered with 3 inch Striplath and the long or edge joints should be off-set or staggered. In all cases butt Rocklath joints together. Space nails approximately 4" apart. 5 nails per lath, per support, using 11s", 13 gauge, blued ?s" flat head, smooth diamond point nails. Cut accurately and fit Rocklath neatly around all electric outlet boxes, etc. Reinforce all re-entrant angles with Cornerite over the Rocklath. Fasten the Cornerne only sufficiently to retain its position until secured ay the pla-ter. Aoply Cornerbead to all exterior angles, nailing it through to the framing. V%" Rocklath is designed for application to studding or other supports not exceeding 16" on centers. Use V" Rocklath for framing members over 16" and up to 24" on centers. Rocklath. a gypsum plaster base, is for use with gvpsum plaster oniv. It is not intended as a base for the application of lime or portland cement plaster. obtained with ROCKLATH plaster base: Fireproof--Rocklath has a gypsum core which is in combustible. Perforated Rocklath, with Vi* of gypsum plaster sanded 1:2; 1:2, is used for partitions where one-hour fire ratings are required. 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. Strong Bond--The bonding strength of gypsum plas ter to Rocklath is unusually high--far higher than is required to meet adequate construction standards. Structurally Strong--The large units of ROCKLATH plaster base add appreciable resistance to lateral dis tortion of the framing members, and when plastered the construction gives high transverse strength between fram ing members. Durable--Gypsum, a mineral, is not harmfully affected by time, decay, dry rot, or normal moisture, and does not attract vermin. Economical--Rocklath is low in cost. Labor cost is low because the large units are quickly erected. Less plaster is required--approximately 45% less than with metal lath. (For Clip Attachment systems, see pcges 42-45. For solid partitions using ROCKLATH and plaster, see pages 50-51.) BB007 0535 30 INSULATING ROCKLATH \ A fireproof gypsum lath with all the advantages of plain ROCKLATH described on page 28. Effective insulation against heat and cold. A superior vapor barrier that helps keep harmful quantities of moisture from entering wall spaces, thus saving the framework from damaging con densation. Speed and economy in building, lath, 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 h" air space between the inner wall and the outer wall. The aluminum foil faces the outer wall. Otherwise 16" .\ 48" Insulating Rocklath is applied in the same manner as plain or perforated Rocklath. See page 29 for application directions. Where to use Insulating Rocklath 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 proymrtion of sun's heat in summer. For these reasons it is used in all climates. Insulating Rocklath plaster base provides an effi cient vapor barrier, and for that purpose is recom mended for all exterior walls ari l ceilings in climates where below-freezing weather occurs ior extended periods of time. Insulating- ROCKLATH .Doesvnot '"storevup" as.much ^summer heat. . _ ^ -Meets-normal .lending - requirements-of -FHA, ` >banks;sbuilding.and loanossociations, and othersourcesapf.-moitgqge-funds- ., ,,+lasigreatiire-resrstance^--because;gypsum s .incombustible. .... Ismotiharmfully-affectediby time, decay, or- mormalrnioi'sture'conditions^.. has^endurancea 4`, --similarstOTthat-af-the mineral-gypsum-im its* natural >state. ; Tv ..... ResistsTorrosion.There'slittlelossof efficiency ihroughithe-yearstwith Insulating Rock LATH-- ; betausesthe^alimiinum.-foil adequately re ;dalnsSts ability- toiTesistjVqpor' and - reflect heat.-.lnsulatingvRoCKLATH -piaster basewill . xontinueitojprovideprotectionfor-thedife-of thedjuildingr.- ;.^.Hassmegligible~expansion-as compared rto athepnormalansulatingdaths. BB007 0586 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 lov 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 by a vapor barrier. Insulating Rocklath prevents up to 959c of this condensation. A sheet of aluminum foil laminated to the Rocklath plaster base at the mill keeps most of the warm, moisture-laden vapor within the house during cold weather. This aluminum foil is one of the most efficient vapor barriers known! During the winter season, moisture within the build ing is needed to maintain proper, comfortable humidity --and property owners can't afford to risk the damage that mav 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 a!! 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 bv the savings in fuel bills over just a few years. In summer, it makes interior temperatures as much as 15 cooler. When properly installed with at least a ?4-inch air space next to the foil. Insulating Rocklath plaster base lias the same insulating value as a full hall inch of fiber insulating board similarly installed. When used on horizontal surfaces, its insulating value is increase more than 3 times in retarding downward flow of he.;; --an important feature when insulating ceilings against summer heat! It is one of the least expensive types 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 butt type insulation. With Insulating Rocklath plaster base, positive insulation of proven value can Lie 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 for masonrv walls. (a) Water vapor readily passes through unpro tected exterior walls. (b) Vapor barrier wall pre vents passage of harmful quantities of water vapor. /\ (a) Unprotected home (left) releases heat in ell directions.Insulated home(right)retains heat--fuel is used to heat the house, not the neighborhood) (b) Sun's heat readily penetrates uninsulated wall and top floor ceiling (left). Insulating ROCK LATH (right) impedes passage of sun's heat. Insulating ROCKLATH is a practical insulation for solid masonry wallsI 88007 0537 1. Fireproof--Fireproof ratings are shown in data table opposite. 2. Lightweight -- 30 per cent to 50 per cent lighter than other commonly used masonry units. See table on opposite page. 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 Y inch or % inch. 5. Resistant to Sound Transmission--See table opposite. 6. Low in Cost Because: Material cost is low-- --large units lay up fast--light weight--fewer joints--ease of cutting reduces waste. Pyrobar is a pre-cast gypsum tile for building nc load bearing fireproof partitions. The surfaces are i dented to receive plaster. Because of the natural aff ity of plaster for Pyrobar, the bond has a safe factor of 173. Pyroi. is 30 per cent to 50 per cent lighter th most masonry partitions of approximately equal thic ness. This light weight results in reduced handli costs in the warehouse and on the job. Of even greai importance, partitions built of Pyrobar require It structural steel to support them. Because Pyrobar is machine molded, the edges a surfaces of each block are straight and true. The bloc can be laid up accurately to a straight line. The large units (2lA square feet of wall surface j side of each tile) lay into a wall fast, further reduci labor costs. Since larger blocks mean fewer joints, to 40 per cent of the mortar ordinarily used in masonry partition is saved. Fixtures, such as sinks, etc., are easily attached wi bolts and large steel washers on both sides. The bo are set before the partition is plastered. Pyrobar can easily be cut on the job with a sa thus reducing waste. In buildings requiring consta alterations to suit tenants' needs, such as office bui RECOMMENDATIONS Use only Red Top Cement Plaster for plastering Pyrobar end Red Tor Partition Tile Cement for mortar. Portland Cement and lime mortars do not bond adequately with PYROBAR and should not be used with this product. Pyrobar should not be subjected to excessive wafer or moisture. Where damp floors :ay be expected, use structure clay tile as a base or starter course, I 2 inches high. go 03 O e ---------------------------------------------------------- -j o U-. o~ 03 PYROBAR 33 ings. Pvrobar is the ideal partition material. Because Pyrobar 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. Election 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 holes horizontally by bed ding in mortar. Lay succeeding courses in H" 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. Heavy fixtures should be secured to Pyrobar parti tions with bolts, set before plastering, using large steel washers on both sides. PYROBAR Partition Tile -- Data Size of PYROBAR Partition Tile Limiting Partition Height 2'xl2rx30' Solid 3'xl2'x30' Hollow 4'xl2'x30* Hollow 6'x12'x30' Hollow 10 ft. 15 ft. 17 ft. 30 ft. Weight Per Sq. Ft. Partition Weight No Plaster Partition Weight (1) Plastered 11.5 lbs. 12.0 lbs. 15.5 lbs. 22.0 lbs. 20.5 lbs. 21.0 lbs. 24.5 lbs. 31.0 lbs. Partition Tile Cement Required Per M Sq. Ft. Tile Avg. Sound Transmission Loss in Decibels Plastered 2 Sides Fire Ratings 500 lbs. 700 lbs. 900 lbs. 1300 lbs. 38.1 Db. (2) 1 hr. (no plaster) 2 hrs. (Plos. 2 sides) 3 hrs. (Plas. 2 sides) 5 hrs. (Plas. 2 sides) (3) (1) Plastered partition weights include piaster on both sides of solid and hollow tile. {2} When furred, one side only, with USG No. 500 Resilient Clips supporting metal lath and plaster (other side plastered direct), overage trans mission loss is 52.7 decibels. See 6M Report 17, Nationol Bureau of Standards. (3) Calculated. B8007 0539 34 l V'v ,..__-Aupenor^laster?bose:.AAadesof*steel;-3Hs-. . exceptionally^strong^ ^ ' ..I _Steel^medwremforcestJhe^plaster^ustinststeelf TOdstarehrfortesconcneter; : - , _,, SorflejdbledhaHtjpBrmitsmamental^jlaster-' Advantages of USG COLOR-RlTE Metal Lath: 1. USG CoLOli-RiTE AIe:.:l Lath represents the newt development in the metal lath industry. Ends of ht dies are sprav painted red lor all 3.-1 lb. lath, ichite l 2.5 lb. diamond mesh and 2.75 lb. Z-rib, blue ior4.0| h" riblath. Tin- makes warehousing, inventory J Mb distribution easier and positin'. An architect quickly and visually in-nect a job to make sure weight lath he specified - used. When the lather ere the colored end to therigni as we re, ommend. the pE terer saves up to 25 per cen: of his sidewall scratch co| saves time and effort bee. use of the uniform "draj on his trowel since all sheet- lav in tin same directioj 2. Helps assure good plastering. An over-sanded scratc coat will not kev to it. Scratching with the correct mj to the proper thickness is the easiest, fastest 'rav. 5 3. Thousands of openings per sq. yd. give metal lath* bulldog grip on plaster, and increase crack-resistaiic 4. Full plaster thickness plus overall steel reinforci ment produces wall? of maximum lire resistance. The all purpose metal lath, fee plain and ornamenb plastering. Contains approximately 11.000 openinj per square vard. Trimmeu square at ends. Rigid shell pro-, ule fast, easv erection. "Self-furring" Diamofi Ales: has 3" indentation?, 11 >" O.C. | Sheet size: 27" x 96", 10 sheets. 20 sq. yds. per WeLhts available: 3.4 :b. am 2.5 lb. copper allfi steei. painted. Galvanized, available only in 3.4 lb. A more rigid lu:h than Diamond Mesh. Rigidity achiev hv wide, solid 3 s" ribs. I1 a" on centers, and bv herrii bone design mesh. Idea! for double back plastering, "plaster su vine" lath--a minimum of plaster droppin] Sheet size: 24" x 96", 9 sheets, 16 sq. yds. per I Weights available: 3.4 1L. and 2.75 lb. copper al steel, painted. A flat rib tvpe of lath with ribs and smaller me opening-. Equally suitable lor nr-oii or nail-on wo: Also a piaster saving tvn<` of lath. Sheet size; 27" x 96". 10 sheets. 20 sq. vds. per l>t i Weights available: 3.4 lb. and 2.75 lb. copper all< s steel, painted. f\ * SB007 0590 * \ A rigid. sell-furring lath. Also a reinforcement for light concrete slabs. As a plastering base, permits a greater span--up to 24"--than other types. Distinguished par ticular] y 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. Most effective as a centering and reinforcement for concrete roofs and floors and for use on much greater spans than are permissible with H" riblath. 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. So called because of its original use as a reinforcing for concrete burial vaults. Its large H" wide diamond makes it suitable as a reinforcement for many types 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. Expanded steel mesh for stucco work. Diagonal strands enable the stucco to resist cracking due to shrinkage, temperature changes and wind stresses. Also provides protection against impact. Apply with USG Stucco Furring Nails. Sheet size: 48" x 99", 10 sheets, S6H sq. yds. per bdl. Nails: VA" Stucco Furring nails, 850 nails per box (sufficient for 50 sq. yds.), 12 boxes per carton. Weights available: 3.( and 1.8 lb. copper alloy steel, painted. A 3" wide strip of Diamond Mesh lath used for a varietv of purposes--stripping joints on other types of lath, reinforcing pipe chases cut in masonry partitions, diagonal reinforcing over door openings, etc. Weight: 70 lbs. per 1000 lin. ft. Packaging: Master bundles of 600 lin. ft. (75 pieces of 8', containing 3 separate bundles of 25 pcs. each). Size available: 3" wide copper alloy steel, painted. Metal Lath 35 BB007 0591 36 i XX A Diamond mesh lath angle used over gypsum lath and masonry (or where different plaster bases abut), and as reinforcing for inside wall and ceiling corners to help protect against corner cracks. Weights: 2" x 2"--100 lbs. per 1000 !in. ft. 3" x 3"-- 150 lbs. per 1000 lin. ft. Packaging: Master bundles of 600 ft. (75 pcs. of 8' 0") containing 3 separate bundles of 25 pcs. each. Sizes available 3" x 3" and 2" x 2" copper alloy steel, painted. Used in most "fireproof" construction as secondary structural members; for furring; as studs in non-load bearing partitions; for suspended ceilings; for orna mental work. Formed from plain steel strip and painted. Corners are square and the legs and webs are straight, free from harmful wrinkles or curvatures. Weights, Lengths and Packaging--%"--300 lbs. per 1000 lin. ft. 16' and 20' lengths, 20 pcs. per bdl. 114"-- 475 lbs. per 1000 lin. ft., 16' and 20' lengths, 10 pcs. per bdl. The wide, sturdy expanded flanges provide a valuable feature for 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. ea.) regardless of length. Shipped in cartons only. Product Designation--No. 1A 23 2'' Expanded Flange Bead, 26 ga. galv. Weight: 204 lbs. per 1000 lin. ft. The all-purpose bead; has great flexibility. Ideal for straight corner work. By snipping one flange, may be hand-formed into almost any corner. Corner bead clips facilitate fastening bead far back from the nose. Lengths and Packaging--8', 9', 10', and 12' lengths, shipped in cartons of 6 bdls., 10 pcs. per bdl., regard less of length. Product Designation--No. 4A--1-9/16'' flange flexible bead, 26 ga. galv. No. 9A--Corner Bead Clips (1000 pcs., 25 lbs., per box). Weight: 179 lbs. per 1000 lin. ft. %" radius nose for rounded corner construction with : exposed steel surface. Preferred in hospitals, public buildings. O ten applied with corner bead clips. Lengths and Packaging--(shipped in crates, or in bun dles of 10 pcs.) Weight: 245 lbs. per 1000 lin. ft. 8'--560 ft. per crate 10'--500 ft. per crate 9'--540 ft. per crate 12'--600 ft. per crate Product Designation--No. 5A--Short flange Bull Nose Bead 26 ga. galv. No. 9A--Corner Bead Clips (1000. pcs., 25 lbs., per box). M 3B007 059? i A superior tvpe Y" radius bead. Easily fastened to un even 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 car ton regardless of length. Product Designation--No. 10A 2M" Expanded Flange Bull Nose Bead 26 ga. galv. Weight: 375 lbs. perM lin. ft. Flush tvpe. Used as a dividing strip or screed between plastered surfaces and cement or terrazzo surfaces. Ex panded flange makes it suitable for uneven surfaces. Weight--230 lbs. per 1000 sq. ft. Lengths and Packaging--10 ft. lengths only. 500 ft. per crate. Shipped in full crates only. Product Designation--No. 3A Expanded Flange Base Ground, 26 ga. galv. H" grounds only. The most popular type base ground. Flush type. Can be shimmed out from the surface if more than Vz" grounds are necessary. Weight--160 lbs. per 1000 lin. ft. Lengths and Packaging--10 ft. lengths, and grounds only. Packed 60 pcs. per ctn. (6 bdls.--10 pcs. ea.) Shipped in cartons only. The offset design provides for a Vz" plaster ground above the screed face and for 1" thick cement or terrazzo below the point. Weight--195 lbs. per 1000 lin. ft. Lengths and.Packaging--10 ft. lengths only. 1000 ft. per crate. Shipped crated only. Product Designation--No. 7A--Curved Point Base Ground 26 ga. galv. Vz" grounds only. Erected before plastering. After plastering, oniv a line opening is visible. Also acts as a plaster ground to accomplish a uniform plaster thickness. Weight--260 lbs. per 1000 lin. ft. Lengths and Packaging--10 ft. lengths only. 1000 ft. per crate. Shipped crated only. Product Designation--No. 8A Concealed Picture Mould, 26 ga. galv. )z" grounds only. Metal Lath 37 38 \ Short and Expanded Flange Casing Economical, sanitary, durable steel casing for doors and windows. Four designs available: No. 4 (quarter round), No. 6 O.G. (old gothic), No. 60 (semi-square), No. 66 (square nose). Weight per 1000 lin. ft.: Expanded No. 4, 320 lbs.; Expanded No. 6, 350 lbs.; Expanded No. 60, 320 lbs.; Expanded No. 66, 320 lbs. All short flange casings, 220 lbs. Lengths and Packaging--(Shipped crated only) 7 ft. and 8 ft.--560 ft. per crate. 10 ft.--500 ft. per crate. Product Designation--No. 4. No. 6, No. 60. or No. 66 Expanded Casing, Vi" and Vi" grounds, 24 ga. galv. Metal Base A flush type of metal base for use with either metal lath or gvpsum lath solid plaster partitions. Made from 18 gauge plain steel and painted. Erected by snapping onto floor or wall clips. 2W high, 2" wide. Further details on pages 51-52, and from U.S.G. representatives. Lath Attachment Clips For attaching ?-g" Riblath to steel joists. Packaged 1000 per carton. No. 1 for lVi" to 1 Vs" flanges No. 2 for 2" to 2Vs" flanges No. 3 for 2-7.16" to 2-11/16" flanges No. 4 for 2x1" to 314" flanges No. 5 for 3\i" to 4)4" flanges No. 7 for 4J s" to 45" flanges Galvanized Steel Wall Ties Corrugated galvanized steel Vs" by 7", for anchoring masonry veneer to structure. Used 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. No. 4 Expanded Flange Casing No. 66 Short Flange Casing USG Metal Base Lath Attachment Clips Tie Wire Wall Ties x- - i _ "s^ajssii /. ' ' USG Aluminum Louvers (Ventilators) Unheated attic spaces in insulated homes need ventilation to prevent undesirable conden sation in the winter and to ventilate and admit cool night air in the summer. Made of sheet aluminum. The front face and back foce are stamped in one piece. The insect screen, of heavy gouge golvonneaied wire, is sandwiched between the two faces V. and the three pieces riveted together. Will not rattle or rust. No painting maintenance. No nesting place for birds. Easier to install because of wide nailing flanges. More flexible and more nailable. v Aluminum nails furnished. Shipping Weight Pieces Per Size Opening Size Free Area Per Corton Carton 8x6 8 '/, x 8'/, 42 sq. in. 6 6 8x12 8'/, x 12'/, 63 sq. in. 8 6 8x16 8'/j x 16'/, 84 sq. in. 9% 6 12x12 12'/, x 12'/, 99 sq. in. 10'/, 6 12 x 18 12'/, x 18'/j 148 sq. in. 14'/, 6 12 x 24 12'/, x 24'/, 199 sq. in. 16'/, 6 14 x 15 14 x 15 143 sq. in. 13 6 J 14 x 24 30 x 12 14 x 24 30% x 12% 233 sq. in. 260 sq. in. 19 11 6 2 30 x 18 30% x 18% 390 sq. in. 1 4% 2 30 x 24 30% x 24% 522 sq. in. 16'/, 2 30 x 30 30% x 30% 652 sq. in. 20'/, 2 Pitched Roof 12% x 5% 49 sq. in. 16 6 Masonry* 16 x 8 72 sq. in. 6'/, 6 Wood* 14 x 8 72 sq. in. 5'/, 6 Cornice 14 % x 4 36 sq. in. 4 6 *For Foundations USG Coal Doors -- Consult U.S.G. representative o VJl o Metal Specialties 39 USG Ready-rormed Metal Arches 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 individually packed in strong corrugated cartons, each carton containing illustrated, casv-tofollow directions. Three styles: Half circle. Gothic, or Elliptic. Seven sizes for 2'6" to 6' openings. 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, long 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 factory lined with cork strips for putty less glazing. Glazing clips supplied with each sash. Can be putty-glazed if desired. Screens have strong, cold rolled steel frame painted gray. Bronze wire screen cloth. Packed with clip.- pro vided for attaching to sash. Sash Size No. of Size of Glass Masonry Opening Weight Lights Width Height Width Height 211512 2L 1516 2L 1520 15*/j lbs. 1 6 Vt lbs. 1 8 Vi lbs. 2 2 2 15" 12" 3314" 15" 16" 33 V*" 15" 20" 3 3'A" 15" 19" 23" i i BB007 0595 40 .- BUNDLING AND WEIGHT TABLES, GENERAL DATA g o * Diamond Mesh Lath, Rib Lath and Vs" Flat Rib Lath o O'. w O' 24 Inch Width No. of. Bundles Yards -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: 34 351 36.'.37' i^V?8. 40 41 42' 43 4445: 46 ' 47 48 49 50 16 32 48 64 80 96 112 128 144 160 176 192 208 224 240 256 272 288 304 320 336 352 368 384 400 416 432 448 464 480 496 512 528 544 560 575 592 608 624 640 656 672 688 704 720 736 752 768 784 800 2.5 lb. 40 80 120 160 200 240 280 320 360 400 440 480 520 560 600 640 680 720 760 800 840 880 920 960 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 Weight of lath j 2.75 lb. 44 88 132 176 220 264 308 352 396 440 484 528 572 616 660 704 748 792 836 880 924 968 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 2112 2156 2200 3.4 lb. i 54.4 108.8 163.2 217.6 272.0 326.4 380.8 435.2 489.6 544.0 598.4 652.8 707.2 761.6 816.0 870.4 924.8 979.2 1033.6 1088.0 1142.4 1196.8 1251.2 1305.6 1360.0 1414.4 1468.8 1523.2 1577.6 1632.0 1686.4 1740.8 1795.2 1849.6 1904.0 1958.4 2012.8 2067.2 2121.6 2176.0 2230.4 2284.8 2339.2 2393.6 2448.0 2502.4 2556.8 261 1.2 2665.6 2720.0 4.0 lb. 64 128 192 256 320 384 448 512 576 640 704 768 832 896 960 1024 1088 1152 1216 1280 1344 1408 1472 1536 160C 1664 1728 1792 1856 1920 1984 2048 2112 2176 2240 2304 2368 2432 2496 2560 2624 2688 2752 2816 2880 2944 3008 3072 3136 3200 i 27 Inch Width Weight of Lath -^ Yards 2.5 lb. 2.75 lb. 3.4 ib. V: li -2 3 4i 51 6 7 8 *9 10 11 12 13 14 15 16 17 IB 19 J 20 * 21 22 23. 24 25 26 27 28 29 30 31 32 'i 33 34 35 36 37 38i ' 39* 40 41 42 43 , 4445 46 47 48 i 49 . 50 ' i 20 40 60 80 100 120 140 160 180 200 220 240 260 280 300 320 340 360 380 400 420 440 460 480 500 520 540 560 580 600 620 640 660 680 700 720 740 760 780 800 820 840 860 880 900 920 940 960 980 1000 50 100 150 200 250 300 350 400 450 500 550 600 650 700 750 800 850 900 950 1000 1050 1100 1150 1200 1250 1300 1350 1400 1450 1500 1550 ' 1600 1650 1700 1750 1800 1850 1900 1950 2000 2050 2100 2150 2200 2250 2300 2350 2400 2450 2500 55 110 165 220 275 330 385 440 495 550 605 660 715 770 825 880 935 990 i 045 1100 1155 1210 1265 1320 1375 1430 1485 1540 1594 1650 1705 1760 1815 1870 1925 1980 2035 2090 2145 2200 2255 2310 2365 2420 2475 2530 2585 2640 2695 2750 68 V 1 36 .7 204 },-Jk 272 % 340 408 j; 476 544 J 612 680 748 816 884 952 1020 1088 1156 1224 1292 1360 1428 1495 1564 1632 1700 1768 1836 1904 1972 2040 2108 2176 2244 2312 2380 2448 2516 2564 2652 2720 2788 2856 2924 2992 3060 3128 3196 3264 3332 3400 Lathing Accessories Bundling, crating, packaging and weight data are included with the description of products on The preceding page:. Metal Lath 41 Application Instructions, Nail-on Jobs 1. Lath ceilings first. Carry sheets six inches on down the walls. 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 ar joists. Secure bv 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 alwav- 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 should be lapped at sides not less than A 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 midway 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 Flat Riblath On walls--use 4d common nails driven %" and bent to engage three strands, or 1" roofing nails with J-fe" heads driven home, or 1" No. 14 gauge wire staples. On ceilings--use \A" No. 11 gauge head) barbed roofing nails driven home. %" Riblath On walls--use 4d common nails driven through rib, or 6d common nails driven H" and bent over rib. On ceilings--use 1A" No. 11 gauge (yis" head) barbed roofing nails driven through the rib. 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) usr 4 strands of 18-ga., or 2 strands of 16-ga., galvanized annealed " ire. Estimating 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: ceil ing 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 A" runner channels 4 feet apart, and 34" furring channels either 12", 16" or 24" apart, depending on type and weight of metal lath used. 2. Quantity of 1 Vi" channels 4 feet apart--divide square foot area by 4. (3.000 divided by 4=750 lineal fe<'\) 3. Quantity of %" channels 12" apart -- multiply square foot area by 1. (3,000 x 1=3.000 lineal feet.) 4. Quantity of %" channels 16" apart--multiply square foot area by 3i. (3,000 x % = 2,250 lineal feet.) 5. Quantity of 3A" channels 24" apart -- multiply square foot area by A. (3,000 x A = 1,500 lineal feet.) 6. Figure tie wire at approximately 10 pounds per 100 square yards of lathing. 7. Lathing nails--for 16" stud spacing, nailing 6"o.c. requires approximately 17 nails per sq. yd. Large Heeded Barbed Roofing Nails 7/\ head Common Nails Length Gauge No. per lb. 1" VA* 4d 6c No. 1 1 No. 1 1 No. 12'A No. 1 1 Vi 275 188 316 181 For Partitions (Per 100 Sq. Yds.) Ceiling Height Spacing of Studs Approx. Lineal Feet of Lineal Feet Floor and Ceiling of Studs Required Members Required 7 ft. 8 ft. 9 ft. 10 ft. 1 1 ft. 1 2 in. 12 in. 1 6 in. 20 in. 24 in. _ 910 ft. 912 ft. 684 ft. 550 ft. 460 ft. 260 ft, 225 ft. 200 ft. 1 80 ft. 164 ft. Lath one side -- 100 sq. yds. Lath two sides -- 200 sq. yds. Erection Data Type of Loth Diamond Mesh Diamond Mesh Z-Rib (21 Z-Rib 121 %* Rib 3/.' Rib STUCCOMESH STUCCOMESH Weight per Square Yard 2.5 lb. 3.4 lb. 2.75 lb. 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 Copper Alloy Copper Alloy Size Sheets 27"x96" 27"x96" 27"x96" 27"x96" 24"x96' 24x96" 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" Metal in 13 Vi' 12' K" 24' 24" (l) Not recommended, except for Fireproofing of steeJ shopes. (2) Or 4-mesh Z-Rib. BB007 0597 42 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 Ciips--packed 500 per carton. B-2 Clips The B-2 Clip is used for internal and external angles formed by 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 wired or stapled to the lath. Do not nail the corner bead to the framing members. B-2 Clips--packed 500 per carton. BRACE-TI Outstanding features 1. Rigidity similar to nail-on 2. Easy to apply 3. Speeds plastering B-l Field clip B-2 Corner clip 3. Loop end of fold dip Is Hooked over diannet. On first coun loth. Held dip Is crimped to take vp slock due to starter *^ip prc Ing ovt from walL A 3-1 dtp is used at each end joint os sh 53007 0593 t:.ACE-TITE and BRIDJOINT 43 Lathing System fcr attaching Rocklath plaster base to suspended ceilings 4. Uses standard materials and tools 5. Adaptable 6. Plaster reinforced 7. Economical 8. Complete--U.S.G. provides all materials I. End joints of lath are staggered to fad between channels. B-l jips are used on both sides of lath end joints. As courses are com* letedt a b-l dip 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 dips over channel and insert* ing hook into the eye of the preceding clip. 6. Cut last course of ROCKLATH plaster bose to width to fit remain* ing space. Insert BKACE-TTTE dip for this final course over previous dip, puli tight into the eye and cut off excess length. Description The Brace-Tite Lathing System is a mechanical sus pension of Rocklath plaster base from standard metal grillage (%" channels spaced not over 16" o.c.). The field clips, attached to %" channels, support the Rocklath 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-l Clips, are required per sheet of Rocklath plaster base. Anv standard h'" cold-rolled channel may be 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 Va" channels, not over 16" o.r. The embedded wire clip reinforces the plaster and increases crack resistance. As the Brace-Tite System requires only M" of plaster in two coats, its use results in economy of application. Materials Channels--USG Va" Cold Rolled Channels, Painted. Lath--x 16" x 48" Rocklath Plaster Base. Clips--Brace-Tite Field and Starter Clips, USG B-l Bridjoint Field Clips*. Cornerite--USG Painted Cornerite. Estimating Quantities 16" spacing of W 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 troffers). None re quired at opposite end of channels. Brace-Tite Field Clips--5 to 6 per square yard. USG B-l Bridjoint Clips--4 per square yard. 12" spacing of Va" channels. Brace-Tite Starter Clips--Same as for 16" spacing. Brace-Tite Field Clips--7 to 8 clips per yard. USG B-l Bridjoint Clips--Same as for 16" spacing. Packaging Brace-4 ite field clips. 300 per carton, starter clips, 50 per carton, and B-l clips, 500 per carton. 8B007 0599 44 \ This system is a method of attachment 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 The National Bureau of Standards assigns a Sound Transmission Loss rating of 47 decibels to wood stud partitions with Resilient Clips and Rocklath plaster base plastered both sides. This system ha received this high rating because it simplv and effectively separates the structural part of the wall, stud or masonry, from the lati: and plaster by means of the steel springs which pc rnit the lath and plaster to vibrate independently, tiius decreasing the energy transmitted to the structural part of the wall. This rating is 6 decibels higher than that assigned to nail-on construction using Rocklath. The resilient system using Rocklath plaster base meets F.H.A. requirements for party walls in multiple family dwellings. Maximum Crack Resistat.ee Plaster cracking, due to normal frame movement, is greatly reduced with the resilient plaster system using Rocklath plaster bare. When minor frame movement occurs, it is absorbed bv the resilience of the springs in the clip. Flexibility of this system replaces rigidity of ordinary plastered walls without sacrificing strength. Economy in Redecoration Rocklath Resilient Clips hold the plaster wall H" away from the framework, permitting air circulation and almost complete equalization of temperatures. Unequal temperatures are the cause of most of the characteristic streak: g of plastered walls which occurs where the plaster base is directly connected with the framingmembers. The use o. Rocklath Resilient Clips practically eliminates streaking from that cause. ; j i i I j J Flexible This system using Rocklath Resilient Clips with z/f Rocklath can be applied to wood, steel or masonry, Plain. Insulating or Perforated Rocklath Plaster base can be used on walls. Only plain or Insulating Rocklath, with three-coat plastering, is recommended for ceilings supported bv Resilient Clips. Allow scratch coat to set and dry before application of brown coat. |i j j i 1 * 5 j Estimating Quantities A total of 6 clips per square yard is required. This includes the R-l field clips, and the R-2 clips required to secure internal corners. The quantity of each is esti- mated as in the following example: 500 square yards x 6 clips per yard = 3,000 clips L*Z-> Estimated number R-2 clips = 800 clips q Difference equals number R-l clips =: 2,200 clips O o o o ) ]! i I Resilient Lathing 45 \ Field Clip Resilient Clip, R-l, is used for the attachment of Rocklath Plaster base to wood framing members, float ing the lath free of the framing members by means of the resilient spring in the clip. The ciip 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 suspen sion in corner sections as the R-l Clip provides in the field. The R-l Clip is also used as the starting clip at the base of the wall. Packaging--R-2 Clips--250 per carton. Ceiling Channel Clip Resilient Clip, R-3, is used for the attachment of Rocklath Plaster base to 54-inch cold-rolled channels in ceiling construction. The clip is hooked over the channel and the Rocklath engaged in the nronss of the clip. This construction provides a ceiling floated from the metal grillage of suspended ceilings. Packaging--R-3 Clips--250 per carton. Wood Furring Clip Resilient Clip, R-4, is used with the Resilient System for attaching the Rocklath to wood furring strips. This clip can be nailed to the face edge of the framing member, permitting its use where obstacles in con struction prohibit the use of R-l described above. Packaging--R-4 Clips--250 per carton. R-5 Masonry Furring Clip Resilient Clip, R-5, is used to mechanically float a Rocklath Plaster base wall or ceiling from masonry or solid concrete construction. With this system the clip provides sound transmission resistance advantages, and also furrs the plastered wall from the masonry. Packaging--R-5 Clips--200 per carton. s BB007 0601 46 i i A practical floating construction for plas tered walls and ceilings that securely, yet resiliently, fastens metal lath to the supporting frame wilh spring clips. ADVANTAGES 1. Reduces transmission of sound. 2. Affords greatly increased protection against cracks due to structural movement or excessive vibration. 3. "Photographing" of joists, etc., is almost entirely eliminated because the plaster does not come in direct contact with these supports. 4. The system can be applied to practically all types of reside r] tial and commercial construction. 5. Only five simple types of clips meet all erection re quirements . . . the system goes up quickly and easily. Standard metal lath construction follows. PACKAGING--500 clips to a carton, except No. 400: 1000 per carton. WEIGHT per thousand clips--No. 100--56 lbs. No. 200--44 lbs. No. 300--46 lbs. No. 400--35 lbs. No. 500--< 8 Il>s. 9B007 0602 \ 2:J 0 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. Wood Frame Construction Application of No. 200 Clip on wood studs ond joists, and No. 300 Clip on wood furring for masonry walls. The clips provide resilient attach ment of metal lath. Vi' pencil rods wire-tied to clips; metal lath tied to rods. Masonry Surfaces Application of No. 500 Clip on ceiling under con crete joists, and on ma.onry surfaces. This con struction provides furring, and resilient attachment of the metal lath. 3A' channel wire-tied to clip; metal lath tied to channels. Resilient Lathing 47 No. 100--for suspended ceilings Furring channels 12" spacing: quantity225 clips per 100 sq. yards. Furring channels 16' spacing: quantity-- 169 dips per 100 sq. yards. (Runner channels at 4' spacing) No. 200--for wood studs or joists Walls (clip spacing 16' along studs): quantity--500 clips per 100 sq. yards. Ceilings (dip spacing 12' along joists): quantity--675 clips per 100 sq. yards. (Studs or joists at 16' spacing) No. 300--for wood furring strips Walls (clips 16' along furring): quantity500 clips per 100 sq. yards. Do not use No. 300 clip on ceilings. Use No. 200. No. <00--for use on TRUSSTEEL StuUs Stud spacing 12': quantity--675 clips per 100 sq. yards of surface area. Clips spcced 16' on studs. Stud spacing 16': quantity--500 clips per 100 sq. yards of surface area. Clips spaced 12' on studs. No. 500--for masonry walls and concrett ceilings Spacing of Furring Channels 12' 16' 19' Spacing of Quantity Clips Clips per 100 sq. yds. 24' 450 18' 450 15' 455 BB007 0603 48 The TRUSSTEEL Stud hollow metal lath and plaster partition is sturdy, durable, and easy to erect. Pipes, ducts and conduits are easily concealed. These partitions are light in weight, fireproof and economical. Note the ease with which this sys tem accommodates pipes and ducts. The simplicity of TRUSSTEEL Stud erection is clearly illustrated here This is a truss design stud for hollow, non-load bearin: fireproof partitions. Outer chords and diagonal strut are built of round rods. As shown in the sketch, the component parts ar (A) top and bottom runner tracks, (B) rod studs spo welded at all contact points, (C) attachment shoes fo connecting the studs to the runners that permit u to 4" upward adjustment, (D) Metal Lath applied t both sides of studs with 18-gauge galvanized tie win For-Resilient Metal Lath construction, No. 400 clip can be used instead of wire. Advantages Trussteel studs are built on the sound engineerir principles of the truss, and make strong, rigid part tions. Partitions of this type have been spi cified, jo tested and approved for the most important jobs, undi the most exacting conditions. Trussteel studs have exclusive features that result : greater economy in the erection of hollow partition They can be quickly fitted around pipes and ducts of types, and are easily spliced. The attachment she make each stud adjustable in height to take care varying ceiling heights. The lather requires no speci tools for quick, easy erection. 00 00 o o ->/ o o TRUSSTEEL Stud 49 t Sizes Availoble: Stud Width Stud Weight per 1,000 lin. ft. Truck Weight per 1,000 lin. ft. ZV*' 4' 6' 455 lbs. 470 lbs. 515 lbs. 354 lbs. 417 lbs. 583 lbs. Stud lengths: 7'0" to 20'0' in increments of 3'. Runner Tracks: ZV*', 4' and 6' widths by 8'0* long. Maximum Partition Height 16 ft. 18 ft. 20 ft. Recommended Stud Spacing Type of lath 2.5 lb. Diamond Mesh Lath 3.4 lb. Diamond Mesh Lath 2.75 lb. Vt Riblath 3.4 lb. Vt' Riblath 3.4 lb. Vt' Riblath 4.0 lb. Vt' Riblath Plain or Perforated ROCKLATH Plaster base Trussteel Stud Spacing 12 inches 16 inches 16 inches 19 inches 24 inches 24 inches 16 inches Erection Align the Trussteei Runner Tracks accurately to the partition layout. Securely fasten to the floor or ceilinc at 16" intervals. Use lA inch concrete stub nab concrete slabs. Space Trussteel Studs 12", 16" or 24" on centers, according to the weight and type of meial lath to be used, and secure each stud to the runner track with two attachment shoes at both top and bottom. Shoes may be either wired or crimped to the stud. Partitions 12 feet or more in height should be braced horizontal1'- with K in Ji channels wired permanently to the inside of the studs. This bracing should be spaced not more than 6 feet on centers vertically. Where the Trussteel Stud Partition abuts some other construction, nail, tie-wire or toggle-bolt the Runner Track to the wall. Corners and partition intersections are formed with four Trussteel Studs. Fasten two studs to each side of every door buck. Rocklath plaster base can be applied to Trussteel Studs with special clips. Consult your U.S.G. repre sentative. BB007 0605 50 \ Description The 2" Solid Rocklath and Plaster Partition is a stud less, non-load bearing partition consisting of H" Lons Length V-edge Rocklath plaster base held vertically in floor and ceiling runners and plastered on both sides 1. Fireproof--Composed essentially of gypsum, the partition is fireproof. When plaster is sanded 1 to 1, 1 to 2, it receives a 1-hour fire resistance rating. with z/i" of plaster. The lath is braced on one side with temporary wood or ZA" steel channels which are re 2. Space Saving--Only 2' thick. Replaces partitions : moved just before the brown coat of plaster is applied more than twice as thick--saves up to 5% of total floor area. > j to the braced side of the lath, and after the brown coat 3. Strong--An official impact test with a 60-lb. weight ' has set on the unbraced side. travelling through a four foot fall failed to produce a discernible crack after three successive blows. 4. Economical--Actual cost is comparable with the j .! This construction is suitable for non-load bearing partitions in multi-unit homes, apartment buildings, cost of conventional wood studs with ROCKLATH plaster offices, hospitals, schools and other structures. It can base and plaster, both sides. be used for walls up to 12 feet high. Electrical outlet 1 Complies with F.H.A. requirements for rental housing. boxes and conduits, plumbing fixtures and door bucks m 2\ are easily installed during the erection of this partition. SECOND, securely attach the L-shaped metal ceiling runner. Center the top flange over the center line of base. The three horizontal slots allow for minor variations in ceiling height. THIRD, place bottom edge of long length R00 LATH plaster base in set grouted base section!* top edge against the vertical flange of cel runner. Position against V-edge of preceding! BB007 0636 iOUQ LQili uuw Piaster Partitions 51 Calling Runner and Clip j This ceiling runner is designed for the ceiling attachment of Long Length ROCKLATH Plaster base in the construc tion of 2' 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. Ceiling Runner: 8 ft. lengths, 50 pieces per bundle. Hairpin Clips: 500 per ctn. Metal Base i The me*ol 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. (An alternate wood floor runner, milled to receive the lath, can be used in place of the metal base if desired.) Temporary Bracing Clip This clip is designed to attach the tem porary ZA" cold rolled channel brace to the ROCKLATH Plaster base. The point of the clip is driven through the lath just below the mid-soction of par titions not exceeding 9 feet in height. The clip is then turned at right angles to the lath and pulled over the channel. It is easily removed when the channel is removed; permits easy and speedy attachment of the temporary bracing. Clips: 500 per carton. JRTH, secure top edge of ROCKLATH plaster e to ceiling runner with hairpin clips. Clips asily thru slots in ceiling runner. Use two clips boord. FIFTH, Va" channel temporary brace: one hori zontal, for up to 9' height, held with USG brac ing dips,* vertical brace, every 6\ tied to hori zontal brace and anchored at floor and ceiling. SIXTH, apply scratch coat to both -ides. Follow ing day apply brown coot to side opposite bracing. When set, remove bracing and brown braced side. Apply finish to both sides. 8E007 0607 52 \ A non-load bearing partition of metal lath and channel construetion plastered on both sides to an overall thickness of two inches. ! ` < Solid Metal Lath and Plaster Partitions are from readilv available stock materials--all item quired are in normal dealer stock. The construction consists of H" channel stu< from floor to ceiling, metal lath, and plaster. Metal Base and Ceiling Runner, or other appi methods of floor and ceiling attachment may be Electrical equipment and plumbing fixtures, bucks, etc., are easily installed with the partition Advantages: Fireproof--composed essentially of gypsum and the partition is incombustible. Has fire resistive i of 1 hour when plastered with gypsum plaster st 1:2, 1:2. Space Saving--only 2" thick. Replaces part: more than twice as thick. Saves up to 5% of total area. Strong--metal lath acts as a steel reinforcement viding exceptional strength. Economical--cost is comparable to conventional or metal stud partitions lathed and plastered sides. Light weight--only 13 to 17 lbs. per partition s< foot. Resists Transmission of Sound--37.6db ratinj. Firtt--When layout has been determined ond chalk lined, begin py erecting door bucks. Second--Secure U5G metal bate or other approved floor attachment, then attach ceiling runner. Third--Erect channel studi and i"< forcement over door opening. > SBC07 0633 >WliU UUth WIIU Plaster Partitions 53 Ceiling rvnner, designed for use with metal channel studs, re quires no clips for attachment of metal lath. Runner can be stub- nailed to reinforced concrete; is slotted to receive channel ends. Available in 10' lengths. Shipping weight per 1,000 feet, 222 lbs. Erection Recommendations The USG Mefal base was designed for use with the 2' Solid USG Metal Lath and Plaster Partitions. The floor clins are nailed to the floor and the base snapped in place. Channel studs attach directly to clips within base. Shipping weight per 1,000 feet double base, 1430 lbs. Height of Portifion Thickness of Partition Size of Channel Stud Permissible 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' 2' 2" 2 Vi' 2 Vi" 23/4" 3' 3Vi' %' %' %' T/j' 1 Vs No limitation 24 ft. 32 ft. 27 ft. 30 ft. 36 ft. 30 ft. 16' 16' 16' 24'* 24'* 24'* 2.5 lb. Diamond Mesh 3.4 lb. Diamond Mesh 2.75 lb. Vi' Riblath 3.4 lb. Vs' Riblath 3.4 lb. %' Riblath 4.0 lb. 3/i' Riblath "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. rth-- Set up temporary horizontal chonnel cing (remove before applying finish coat) install conduit, outlets, etc. Fifth--Apply metal lath, starting at ceiling and working toward ficor. Sixth--Apply scratch coat to lath side, back-up to channel side. Then brown and finish coots to lath side, finish only to channel side. C5 O O o oc* vC : i- : ' V i; ,-v\ - \ < *. r-v*` . . r- 300 WEST ADAMS STREET, CHICAGO 6, lUlNa G5 O o -J o O' o 1 v3 i i1 1 4'i 'J ;; ; ... , ,i ... fT 1 V L2z,..,Z&U.^jz. ' -^ 4: 1 .3 STATES GYPSUM ' :' - \ District Sales Offices ALBANY. N. Y. ATLANTA. GA. BALTIMORE, MD. BIRMINGHAM, ALA. BOSTON, MASS. BUFFALO, N. Y. CHARLOTTE, N. C. CHICAGO, ILL CINCINNATI, O. CLEVELAND, O. DALLAS, TEX. DENVER. COLO. DETROIT, MICH. GRAND RAPIDS, M!CH. HARRISBURG, PA. HOUSTON, TEX. INDIANAPOLIS, IND. JACKSONVILLE. fU. KANSAS CITY, MO. LOS ANGELES. CALIF. MILWAUKEE. WIS. MINNEAPOUS, MINN. NEWARK, N. J. NEW HAVEN, CONN. NEW YORK, N. Y. OKLAHOMA CITY, OKLA. OMAHA. NEB. PHILADELPHIA, PA. PHOENIX, ARIZ. PITTSBURGH, PA. PORTLAND, ORE. PROVIDENCE, R. 1. RICHMOND, VA. ST. LOUIS, MO. SACRAMENTO, CALIF. SALT LAKE CITY, UTAH SAN FRANCISCO, CALIF. SEATTLE, WASH. SYRACUSE, N. Y. WASHINGTON, D. C :~V -J-- - CO CP o o -si o O' \ ---V-- . .. - -- .....,..... . .. . -ij \ ' -\*Sxia - - - - .--VJ -.* .... *1. . ' . . SVj/v v i- ={'r-- -_:r^ >?;: , ,:' ' 'rf`.S- [ [ [ [ fc L .! ,-mM L L L r L ( * 4 l. t 05 CD o o -J o IO--' r\>