Document rxv653X0DVzrqkmy63wBYreBe

- '1 PLAINTIFF'S EXHIBIT KN-398 BALOWIN-HILL COMPANY, TRENTON $, NEW JERSEY 8Ph,ClFlGATiONa FOR INSULATION Of DUCT SYSTEM 1, All air ducts noted on di*wings shall be Insulated with 8pua Mineral Wool Hoot In* suletlon, ae manufactured by Baldwin*HU1 Company, or approved equal, la thickness specified on drawings' Preparation of Surface * Remove all loose rest, scale or dirt from surface of Duet so that nothing will Interiors with the application of iho pins, dips, eorewa or adhesive, 2* Type of Duct Insolation to bo used * (Cross off all but desired oat) to) - Plain (b) Vapor-Barrier to) 0 Foil-Faced (Non-Combustible or Vapor-Barrtor) to) m Coated .4 Methods of Attachment * (Cross out all but desired method) (a) Graham WeMIng Pins or Mechanical Clips applied with recommended adhe sive, applied to under surfaces of horlsontai runs and all four tides of vertical duels, with a minimum of one fastener per 2 square feet of turfaoe, Benjamin-Foster 81-81, 81-71, or equal adhesive, to be applied to other three sides of horlsontai rune. Adhesive to b applied in 4" wide strips at ono foot Intervals, and then ridged slightly by using e serrated trowel. Duot Insulation to he out in widths and lengths to suit tho croee*sectional dlmeaetone of each duet, with the top and bottom pieces overlapping the aide pieces. (Cut over-lino to Insure tight fit). Apply ths bottom ploco first by Impaling It on the pins or dips, end secure with wethers, speed nuts or bond tho fastenars to held the Insulation In placo. Apply ths sides and then tho top, proaaing tho material firmly in place to Insure good bond. If Vepor-Birrlor Duct Insulation It used, seal all joints with a !" wide vapor bnrrtsr taps adhered with Benjamin- Fostor 60-24, or oqual. Cover fastener hendi with, at least, a J" patch of Benjamin-Footer 64-26,or equal, to pre vent vapor entry at those points. If Foil-Faced Duct Insulation is usod, soal all Joints and cover all fastener hoods with aluminum foil preseutu-seneitive tape or approved equal. (b) No, ip qv 12 gangs galvanised or stainless steel screws 1/2" longer than the thlchnesB of Insulation to be applied. Ceps to he fiber washers or motel dioha of 1*1/2" diameter) acrewi to be applied, at least, one per 2 square feet, and should he ee near the duot edges at possible for maximum support. Duct Insulation to be out In widths and lengths to suit ths cross sectional di mensions of tho duct, with the top and bottom pieces overlapping the side pincoi. (Cut ovor*iM to insure tight fit). Apply all font stdot with the aa-ewi and caps, mahlag sure each has tekta e firm hold, If Vapor-Barrier Duct Insulation is used, seal alt Joists with a J" wide vapor* barrier tape adhered with Benjamin-Foster 64*26 or equal. Cover fastener heads with, at toast, a J" pateh of Uenjamit*Foater 60*16, or *W|r VWHn vont vapor entry at then points, * 004 vUO If Foil-Faced Duet Insulation It used, eoal ell JoJnta end sever all fastener bonds with aluminum foil proesure-sensitive tape or approved equal, Betti March 1, 1959 ***'*<' July l, 1931 D-J toge. 7A