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CHAPEL HILL ORANGE COUNTY VISITORS BUREAU August 12, 2020 <br />308 WEST FRANKLIN, CHAPEL HILL, NC <br /> <br />THERMAL INSULATION 072100 - 3 <br />PART 2 - PRODUCTS <br />2.1 MANUFACTURERS <br />A. In other Part 2 articles where titles below introduce lists, the following requirements apply to <br />product selection: <br />1. Available Products: Subject to compliance with requirements, products that may be <br />incorporated into the Work include, but are not limited to, products specified. <br />2. Products: Subject to compliance with requirements, provide one of the products <br />specified. <br />3. Available Manufacturers: Subject to compliance with requirements, manufacturers <br />offering products that may be incorporated into the Work include, but are not limited to, <br />manufacturers specified. <br />4. Manufacturers: Subject to compliance with requirements, provide products by one of the <br />manufacturers specified. <br />2.2 GLASS-FIBER BOARD INSULATION <br />1. Manufacturers: <br /> a.. Owens-Corning <br />A. Unfaced, Glass-Fiber Board Insulation: ASTM C 612, Type IA or Types IA and IB; with <br />maximum flame-spread and smoke-developed indexes of 25 and 50, respectively; passing <br />ASTM E 136 for combustion characteristics; and of the following nominal density and thermal <br />resistivity: <br /> . <br />1. Nominal density of 4.25 lb/cu. ft., thermal resistivity of 4.3 deg F x h x sq. ft./Btu x in. at <br />75 deg F . <br />2.3 GLASS-FIBER BLANKET INSULATION <br />A. Manufacturers: <br />1. Owens Corning FibreGlas insulation or equal. <br />B. Unfaced, Glass-Fiber Blanket Insulation: ASTM C 665, Type I (blankets without membrane <br />facing); consisting of fibers; with maximum flame-spread and smoke-developed indexes of 25 <br />and 50, respectively; passing ASTM E 136 for combustion characteristics. <br />C. Where glass-fiber blanket insulation is indicated by the following thicknesses, provide blankets <br />in batt or roll form with thermal resistances indicated: <br />1. 3-1/2 inches thick with a thermal resistance of 11 deg F x h x sq. ft./Btu at 75 deg F , 13 <br />deg F x h x sq. ft./Btu at 75 deg F <br />2. 3-5/8 inches thick with a thermal resistance of 11 deg F x h x sq. ft./Btu at 75 deg F <br />DocuSign Envelope ID: 775B89AF-3514-4D9E-B148-2FDE4EFF16C2