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1. Mineral Fiber Type: Fibers manufactured from glass or slag. <br /> 2. Surface Burning Characteristics: Maximum flame spread and smoke developed values _ <br /> of 25 and 50,respectively. <br /> I. Faced Mineral Fiber BlanketBatt Insulation: Tfiermal insulation produced by combining <br /> mineral fibers of type described below with thermosetting resins to comply with AST'M C 665 for Type <br /> III,Class A(blankets with reflective vapor-retarder membrane facing with flame spread of 25 or less); <br /> foil-scrim-kraft or foil-scrim-polyethylene vapor-retarder membrane on one face,and as follows: <br /> 1. Mineral Fiber Type: Fibers manufactured from glass or slag. <br /> 2. Surface Burning Characteristics: Maximum flame spread and smoke developed values <br /> of 25 and 50,respectively. <br /> J. "RX-2 Reflective Aluminum Foil Insulafion,"R-Fax Technologies,Inc. <br /> VAPOR RETARDERS <br /> A. Polyethylene Vapor Retarder: ASTM D 4397,6.0 mils thick,with a maximum <br /> permeance rating of 0.13 perms. <br /> B. Tape for Vapor Retarder: Pressure sensitive tape of type recommended by vapor retarder <br /> manufacturer for sealing joints and penetrations in vapor retazder. <br /> C. Available Products: Subject to compliance with requirements. <br /> D. Products: Subject to compliance with requirements,provide one of the following: <br /> 1. Foil-Polyester Film Vapor Retarder: <br /> a. "Alumiseal Zero Perm,"Alumiseal Corp. <br /> PART 3-EXECUTION <br /> 3.1 EXAMII�TATION <br /> A. Examine substrates and conditions with Installe,r present,for compliance with <br /> requirements of the Sections in which substrates and related work are specified and to determine if other <br /> conditions affecting performance of insulation are satisfactory. Do not proceed with installation of <br /> insulation until unsatisfactory conditions have bcen cornected. <br /> 3.2 PREPARATION <br /> A. Clean substrates of substances harmful to insulations or vapor retarders, including <br /> removal of projections that might puncture vapor retarde�s. <br /> 33 INSTALLATION,GENERAL <br /> A. Comply with insulation manufacture�'s instrudia�ns applicable to products and application <br /> indicated. If printed instructions are not available or do not apply to project conditions,consult <br /> manufacturer's technica.l representative for specific recommendations before proceeding with installation , <br /> of insulation. See drawings. <br /> B. Extend insulation full thickness as indicated to envelop entire area to be insulated. Cut <br /> and fit tightly around obstructions,and fill voids with insulation. Remove projections that interfere with <br /> placement. <br /> C. Apply two layers of insulation to mcet required thickness,unless otherwise shown. <br /> 3.4 INSTALLATION OF PERIlVIETER AND UNDER SLAB INSULATION <br /> Page 4 of 6 <br />