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DocuSign Envelope ID:D561B1AE-DF34-4907-AD06-AOEB37BBE427 <br /> CHAPEL HILL ORANGE COUNTY VISITORS BUREAU August 12,2020 <br /> 308 WEST FRANKLIN,CHAPEL HILL,NC <br /> 1. Use insulation widths and lengths that fill the cavities formed by framing members. If <br /> more than one length is required to fill cavity,provide lengths that will produce a snug fit <br /> between ends. <br /> 2. Place insulation in cavities formed by framing members to produce a friction fit between <br /> edges of insulation and adjoining framing members. <br /> 3. Maintain 3-inch(76-mm)clearance of insulation around recessed lighting fixtures. <br /> 4. Install eave ventilation troughs between roof framing members in insulated attic spaces at <br /> vented eaves. <br /> 5. For metal-framed wall cavities where cavity heights exceed 96 inches (2438 mm), support <br /> unfaced blankets mechanically and support faced blankets by taping flanges of insulation <br /> to flanges of metal studs. <br /> D. Install board insulation on concrete substrates by adhesively attached, spindle-type insulation <br /> anchors as follows: <br /> 1. Fasten insulation anchors to concrete substrates with insulation anchor adhesive according <br /> to anchor manufacturer's written instructions. Space anchors according to insulation <br /> manufacturer's written instructions for insulation type, thickness, and application <br /> indicated. <br /> 2. Apply insulation standoffs to each spindle to create cavity width indicated between <br /> concrete substrate and insulation. <br /> 3. After adhesive has dried, install board insulation by pressing insulation into position over <br /> spindles and securing it tightly in place with insulation-retaining washers, taking care not <br /> to compress insulation below indicated thickness. <br /> 4. Where insulation will not be covered by other building materials, apply capped washers to <br /> tips of spindles. <br /> E. Install board insulation in curtain-wall construction where indicated on Drawings according to <br /> curtain-wall manufacturer's written instructions. <br /> 1. Retain insulation in place by metal clips and straps or integral pockets within window <br /> frames, spaced at intervals recommended in writing by insulation manufacturer to hold <br /> insulation securely in place without touching spandrel glass. Maintain cavity width of <br /> dimension indicated between insulation and glass. <br /> 2. Install insulation where it contacts perimeter fire-containment system to prevent insulation <br /> from bowing under pressure from perimeter fire-containment system. <br /> 3. For cellulosic-fiber loose-fill insulation, comply with the Cellulose Insulation <br /> Manufacturers Association's Special Report#3, "Standard Practice for Installing <br /> Cellulose Insulation." <br /> F. Apply self-supported, spray-applied cellulosic insulation according to manufacturer's written <br /> instructions. Do not apply insulation until installation of pipes, ducts, conduits, wiring, and <br /> electrical outlets in walls is completed and windows, electrical boxes, and other items not <br /> indicated to receive insulation are masked. After insulation is applied, make it flush with face <br /> of studs by using method recommended by insulation manufacturer. <br /> G. Stuff glass-fiber loose-fill insulation into miscellaneous voids and cavity spaces where shown. <br /> Compact to approximately 40 percent of normal maximum volume equaling a density of <br /> approximately 2.5 lb/cu. ft. (40 kg/cu. m). <br /> THERMAL INSULATION 072100 -7 <br />