Document 4OB97NgRY2Nv7bX1M76DY4Oe

Iv K r U -- f : f i [: f' r rr Hi r f mmm S l ... :i February 31, 1973 . -=- SUBJECTI flOUNPPROOrnW TOi MEMBERS Of THE LEAD MDOSTSIES ASSOCIATION Enclosed Is a reprint froa the Kay-June issue of BETTER SCHOOLS magasine. It reflects an increasingly widespread use of sheet lead in new school construction for soundproofing. Sheet lead has in fact gained general accept* ance among school architects as the material providing the most efficient sound barrier at the lowest cost. Additional copies of this reprint, or further information on use of the material are avail able on request. Vary truly yours, EEMIH D. MARTI*. AZA Manager, Architectural Services EDM ip Enel. SfP mm 4? [- r ABOVE: Th Thomas J l>*y EtxnwUfy School *n CratnlMm, New York. will. t maximum capacity. accommodate about 1,200 pupils. Quet h i the ctasuoom$ n assured by the uw of sheet lead plenum barriers between cUsvooms. in addition. an aud*ometric room shielded with Wad at a sound barrier w>it assure accurate testing of hearing. BELOW; The entire interior walls of the aud*ometnc room were covered with sheet lead to assure that no extraneous norse would penetrate and affect (n validity of the tests. OPPOSITE PAGE: (top) Sheet lead shields the opening between the movable partition rail and the ce'mg "1" beam to prevent the trinvmsuon of sound between classrooms. AccoustKal wool was used to seal the gap between the "1" beam and the corrugated steel above, (center) The use of sheet lead made rt easy to accommodate the penetration of piping above the ceiling between cWnroorm. (bottom) Sheet lead was usad over the entrances Into classrooms to permit the intrusion of pipes, conduits and ductwork. The US# of Sheet lead made the installation of the sound barrier easier to do. ru- t HZ' \ Reprinted from 1 bttw tchoob Mur Jam 1171 .-gn^paiiaa^^^. 1 L- N 3493.01 Er 1 &;> ; F it, . p- fc ;:. r il `S 1 -i 4 j>:- P' fe IT * i > -fi r -3i bat W7i Distributed by Lead Industries Association, Inc. m Madison Amo k * Nn York M.V. KC1T < HE GROWTH of our nation ha* mm- Tsitated th building of new schools designed often with multiple-use flexibility to compensate for lack of fund*. These schools nquin noise control systems to avoid croa-fed of dktiactinf aounda bttween classrooms. Privacy and quiet are essential to school environments, and the newly-conrtructed Thomas J. Lahey School in Greenlawa, N.Y. ia exemplary of fine planning displayd to meet this need. Deaigned by Coco t Smith, of Hauppauge, Uve one-story building features chisten of classrooms aurrounding a central core, comprimed of adminiatrative offices, gymnaaium, and a combination auditor!um/cafeteria. Thia concept aervea to lend privacy to classrooms and teaching areaa. Of especial benefit to teachers and studrnts has been the use of lead aa a sound barrier. In the area between the drop ceiling and root, the space between the partition track and ceiling l-beam sraa sealed with one-pound, 1/64-inch-thick lead, snapped around one- by three-inch wood strips which, in him, were wedged in place against the lower flange of an I-beam. The lower portion of the sheet lead wm sealed into the partition track and secured with 3/16-inch wood wedges. Sheet lead Joints were overlapped and taped. To pene trate pipes, conduits, and such, the lead sheet was slit and sealed srith tape. The material also sraa used above the entrances to daaarooma and to completely soundproof an audiocnetric testing room used for pupil hearing prior to enrollment. Thia was done by covering all walla with one-pound sheet lead, held in place, again, srith one- by three-inch batten strips, on 12-irtch centers. The walla then were finbhed with an acoustical board srith aoundabsorbing glass fiber behind the board. According to Gilbert L. Phillips h, president of Gilbert L. Phillips. Inc., acous tical contractors, and advocate of lead aa a sound barrier, "When you consider the low installation costs and the high performance level of lead, you can then understand why we consistently recommend its use in criti cal are*. . ftlead ia inexpensive, pre dictable, and efficient." This maUrial sraa adapts* from taarf kUgaxtast, VoL H. No. 1-4. mi. PRINT!0 IN UJA. -ites i