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DocuSign Envelope ID: 313DA256 -1EDE- 4396- A716- 4C53B809027E <br />JERRY M. PASSMORE CENTER ADDITION AND RENOVATION <br />HILLSBOROUGH, NORTH CAROLINA <br />5. Owens Corning. <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. Faced, Glass -Fiber Blanket Insulation: ASTM C 665, Type III (blankets with reflective <br />membrane facing), Class A (membrane -faced surface with a flame - spread index of 25 or less); <br />Category 1 (membrane is a vapor barrier), faced with foil- scrim -kraft, foil- scrim, or foil- scrim- <br />polyethylene vapor- retarder membrane on 1 face. <br />D. 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 (89 mm) thick with a thermal resistance of 11 deg F x h x sq. ft. /Btu at 75 <br />deg F (1.9 K x sq. m/W at 24 deg C). <br />2. 3 -5/8 inches (92 mm) thick with a thermal resistance of 11 deg F x h x sq. ft. /Btu at 75 <br />deg F (1.9 K x sq. m/W at 24 deg C). <br />3. 5 -1/2 inches (140 mm) thick with a thermal resistance of 21 deg F x h x sq. ft. /Btu at 75 <br />deg F (3.7 K x sq. m/W at 24 deg C). <br />2.5 SLAG - WOOL- FIBER/ROCK- WOOL -FIBER BLANKET INSULATION <br />A. Available Manufacturers: <br />1. Fibrex Insulations Inc. <br />2. Owens Corning. <br />3. Thermafiber. <br />B. Unfaced, Slag - Wool- Fiber/Rock -Wool -Fiber Blanket Insulation: ASTM C 665, Type I <br />(blankets without membrane facing); consisting of fibers; with maximum flame - spread and <br />smoke - developed indexes of 25 and 50, respectively; passing ASTM E 136 for combustion <br />characteristics. <br />C. Where slag - wool -fiber /rock - wool -fiber blanket insulation is indicated by the following <br />thicknesses, provide blankets in batt form with thermal resistances indicated: <br />3 -1/2 inches (89 mm) thick with a thermal resistance of 13 deg F x h x sq. ft. /Btu at 75 <br />deg F (2.3 K x sq. m/W at 24 deg Q. <br />2.6 VAPOR RETARDERS <br />A. Polyethylene Vapor Retarders: ASTM D 4397, 6 mils (0.15 mm) thick, with maximum <br />permeance rating of 0.13 perm (7.5 ng /Pa x s x sq. m). <br />B. Reinforced - Polyethylene Vapor Retarders: 2 outer layers of polyethylene film laminated to an <br />inner reinforcing layer consisting of either nylon cord or polyester scrim and weighing not less <br />BUILDING INSULATION 07210-4 <br />