Document 3J4O5YkBb8KvvQn6zJXg4x99D

Effective May 2,1938 The PRICE of PERFORATED ROCKLATH L-- ; r* |\ FILE | t-J fl f-- J L * 'J Cni REDUCED~ade=U(ar& ^yrJfectiaw ^5/ per 1,000 feet!''cei'U-ccf, ------- -7................... NOT DEBiRC ^ r Bringing the New Price Down to That of Plain Rocklath . . . THIS price reduction--coming as it does plaster for this one-hour fire rating. And on the eve of a general nation-wide drive hundreds of cities have now approved our for more building--should serve to accelerproduct on this basis. ate even more vigorously the sweeping sales Add to these extra advantages the standard growth of PERFORATED ROCKLATH.* Rocklath superiorities in ease of handling Since its introduction--two short years and applying--true and clean edges and ago--this popular plaster base has won mar surfaces--and ready-scoring qualities--and ket after market--until it now rivals plain PERFORATED ROCKLATH, at its new Rocklath in volume. With prices identical reduced price, stands out attractively above there is no longer any sound reason why all older and ordinary plaster bases. the extra advantages of PERFORATED Plasterers all over the country, further ROCKLATH should not send it quickly into more, are giving it their preference because full leadership. These extra advantages are: they like the way the holes "take hold" and I. A Double Grip On Plaster--the welded literally slice the plaster from the trowel-- grip of gypsum to gypsum through the board and because, with it they can build a wall surface by crystalline attachment--and the at little, if any greater cost than if they used riveted grip formed as plaster is forced a base without all the extra PERFORATED through its regularly spaced perforations ROCKLATH advantages. to expand and form "mechanical rivets" on All told, PERFORATED ROCKLATH the back of the lath. (See illustration in now offers an abundance of profit-making advertisement attached.) possibilities that should appeal imme II. A One-Hour Fire Rating--Tests diately to every dealer. at Bureau of Standards qualify partitions We will be glad to give you further made of PERFORATED ROCKLATH and more complete details if you will plastered with one-half inch of gypsum just send us the enclosed card. UNITED STATES GYPSUM COMPANY 300 WEST ADAMS ST., CHICAGO WflTF checking the convenient card enclosed, we suggest you also ask for information on: Insulating Rocklath aJi _wijich controls temperature by reflection; the Rocklath Resilient System--which makes walls and ceilings more sound-proof and crack-proof and eliminates "lath mark" discoloration; and the Rocklath Bridjoint* System--which offers 7 distinct improvements toward better plastering at lower cost. Many dealers are making quick profits and good profits handling our complete Rocklath Line. Why not you? * Reg. Trade Marks K-40 BB025 1756 PERFORATED ROCKLATH Meets Today's Need for a Fireproof, Strong Plaster Rase When you think of walls and ceilings for a new building, you no doubt.think first of a decorated surface; you think in terms of the effect of the finished, decorated surface on the eye. And in so thinking you are right; for the part of any interior that is seen most, that more than any other single feature makes interiors attractive, is the wall and ceiling area. How important it is, then, that the materials over which the decoration is to be applied be carefully considered. For it is upon the quality of these materials--upon the quality of the interior finish--that the effectiveness of the decoration greatly depends. So in selecting the interior finish over which decora tion is applied, check these features: 1. Will it provide a hard and lasting surface that will allow decoration (that may well cost as much or more than the interior finish) to be permanently attractive? 2. Will it give the build ing added strength and help keep the finished wall free of blemishes? 3. Is it fireproof, will it help protect the building and its occupants from fire? 4. Is its cost in line with the cost of materials ordinarily used? These you may think are rigid specifications. They are rigid specifi cations. But they are specifications that are met in every respect by an interior finish of Perforated Rocklath* and Red Top* Plaster. Perforated Rocklath provides one of the finest of bases for plaster. It is a sturdy, non-warping FIREPROOF gyp sum lath perforated with circular holes spaced at regular intervals -- the first step to strong, smooth, permanent walls and ceilings. The photographs at the head of this page illustrate how simple is the erection of a Perforated Rocklath-Red Top Plaster wall. The lath is applied with ordinary tools over framing; plaster is applied with unusual ease over the lath. When plaster is applied over Perforated Rocklath it bonds to the lath with a double grip--first, the grip of plaster to the surface of the lath (twice the grip of plaster to the average lath); then the grip of the "mechanical" keys formed as plaster is forced through the perforations. The result is a wall that meets the specifications set up for the ideal interior finish. The finish is first of all an excellent base for decoration -- smooth, hard, highly resistant to cracking. It is a finish that adds to the rigidity of the building. It is a finish that has superior resistance to fire--for it consists of al most an inch of solid, non-cumbustible gypsum. And considering its many added advantages, the cost of this interior finish is unbelievably low; so low that a Perforated RocklathRed Top Plaster finish actually costs little if any more than a finish of oldfashioned, less satisfactory materials. BB025 1757 These Are Features That Make Perforated Rocklath the Preferred Base for Plaster EASILY, QUICKLY APPLIED EASY TO PLASTER OVER STRONG BOND FORPLASTER Perforated Rocklath is economical to use because it goes on quickly. It is made in convenient size sheets that fit standard framing and can be nailed directly to joists and studding. Perforated Rocklath is handled with exceptional ease, can be "scored" with a hatchet and broken, as shown in the illustration. It is shipped in bundles -- six lath to the package--that protect edges and surfaces from mill to job. Plasterers everywhere like Perfo rated Rocklath because it gives them a better base to plaster over. The perforations "take hold" of the plas ter, literally "slice" it from the trowel. Because it makes the plasterer's job easier, he is more able to produce a fine, craftsmanlike job. And he likes Perforated Rocklath too because it enables him to give the owner a stronger, more fire-resistant wall, suitable for any decoration. This illustration is a photographic "close-up" of the back side of a sec tion of Perforated Rocklath plastered with Red Top Plaster. Notice how plaster forms "mechanical" keys when forced through the perfora tions. And remember that thia "me chanical" keying is in addition to the already strong grip of plaster to the surface of Perforated Rocklath itself --proved in tests to be greater than for any other type of lath. . . ./`JVJe'-H.i TO 3$ :1 f>I ' 3 m?l! MSI ij ;ki3Ha :mim mm/'.?4 as If Perforated Rocklath were not su perior in other respects--strength, permanence, grip for plaster--the one fact that would still argue for its use in buildings is its resistance to fire. Think of the millions of dollars worth of property destroyed every year by fire, of the thousands of lives fire snuffs out every year. Is not this sufficient reason for more fire-safe construction--for the Perforated Rocklath-Red Top Plaster wall that has been proved to have extraordi nary resistance to fire? To demonstrate this resistance to fire, tests were conducted at the Bureau of Standards. At the con clusion of the tests, a Perforated Rocklath partition, when plastered with Gypsum Plaster, was shown to have qualified for a one-hour fire rating--a preferred fire rating. This superior resistance to fire means that in case of fire, fire-fight ing equipment has more time to get on the job; it helps confine fire to rooms in which it originates; helps protect not only the building, not only furnishings and furniture, but dsolife- 8SZ.T S2089 SEo.ua. wow. DTOP ^CEMENT PIASTER i. M IITED STATES GYPSUM COMPANY] feu <100 IBt BET WEIGHT k~'< - ,-v -f:` Ray' ilfSJfc- :v%& *X&: For Strong, Permanent Walls and Ceilings Use Red Top Plaster Over Perforated Rocklath First need in getting a lath and plaster wall that will give long, satisfactory service and provide a good base for decoration is good lath. Perforated Rocklath fills that need. Second need is a high quality plaster. Red Top Plaster fills that need. For more than thirty years, Red Top Plaster has been the stand ard of gypsum plastering materials. Its quality and strength have been tested in laboratories and on many thousands of jobs. Recent improvements are so significant that you can't afford to overlook them when selecting the brand of plaster you intend to use. More uniform setting time, greater plasticity, better working qualities, and better keeping qualities are among the important improvements. These improvements are important because they make possible better plastering work and encourage a higher standard of plastering than was ever before possible. Good lath--Perforated Rocklath, plastered by competent work men with good plaster--Red Top Plaster--these are the requisites of good walls and ceilings. Insist on them for your next plaster job. Use USG Finishing Lime For Finish Goat Standard plastering practice for lath and plaster walls is to apply two coats of gypsum plaster topped with a finish coat. For this finish coat, USG Finishing Lime gauged with Red Top rj cj Gauging Plaster is ideal, producing a smooth, hard, white ^Vl finish suitable for any decoration. O GYPSDM COMPANY BB025 1759 16 * 48 P i r i o n M R ocklttK applied to 3 ' U8G Truaateel Studs w ith *68 Rookieth Truaeteel C lip on apartm ent b u ild in g job, B u iia lo , New Y ork, using 100,000 lin e a l foot of Tmaetaal Studa, 300,000 aquara faot of parforatad Rookieth and 400 tona o f Rad Top Plaatar and lim a . No. 68 ROCKLATH TRUSSTEEL CUP (OolraiuMd) Usad to attach Trnastaal Studs. 16' I 48* Roddath to U86 Kstimata 6 dips pot square paid it rtadi aza 16' oa esatar -- 4 dips par square yard if 24' oa oantar. II studs an unarenly ipand or an oa othai than 12', 16* or 24' oanters use W-22 Bridjoint dips (3par aqoan yard) to reinforce the Rocklath and faints that occur batwaan studs. APPLICATION or CLIP (FIGURE 2) Position 1 Holding dip as shown, bring It in contad with Trnastaal Sind by slid ing tha slottad portion oi dip oaar tha rartical flange rods. Position 2 Than with dip in tight contact with with rartical flanga rods twist it around until lacs d dip is parallal to tha iaca of tha Trnastaal Stud and dip is at a 48s angla to tha floor. Position 3 Thanbring diptoahorisoatalposition by ganfly twisting it with a oountar clockwise motion locking it inplaca by forcing Angara al or *2 (Sgun 1) or both to band into tight contact with tha stud dapanding on whathar clip is baing plaoad on dud propor, tha splioa or tha extension. CHp can than ba morad up and down tha flanga rods to propony angaga tha Roddath. JM8--OCT. 1938 UNITED STATES GYPSUM COMPANY BB025 -OJ'