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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 - 6 <br />C. Extend insulation in thickness indicated to envelop entire area to be insulated. Cut and fit <br />tightly around obstructions and fill voids with insulation. Remove projections that interfere <br />with placement. <br />D. Water-Piping Coordination: If water piping is located within insulated exterior walls, <br />coordinate location of piping to ensure that it is placed on warm side of insulation and insulation <br />encapsulates piping. <br />E. For preformed insulating units, provide sizes to fit applications indicated and selected from <br />manufacturer's standard thicknesses, widths, and lengths. Apply single layer of insulation units <br />to produce thickness indicated unless multiple layers are otherwise shown or required to make <br />up total thickness. <br />3.4 INSTALLATION OF CAVITY-WALL INSULATION <br />A. On units of foam-plastic board insulation, install pads of adhesive spaced approximately 24 <br />inches (610 mm) o.c. both ways on inside face, and as recommended by manufacturer. <br />Adhesive must be compatible with the spray fluid air barrier applied to wall sheathing. ( Fit <br />courses of insulation between wall ties and other obstructions, with edges butted tightly in both <br />directions. Press units firmly against inside substrates indicated. <br />1. Supplement adhesive attachment of insulation by securing boards with two-piece wall ties <br />designed for this purpose and specified in Division 04 Section "Unit Masonry." <br />B. Install units of cellular-glass insulation with closely fitting joints using method indicated: <br />1. Gob Method: Apply 4 gobs of adhesive per unit and set units firmly against inside wythe <br />of masonry or other construction as shown. Apply gobs at each corner; spread gobs to <br />form pads 4 inches (101 mm) in diameter by 1/4 inch (6 mm) thick. <br />2. Serrated-Trowel Method: Apply adhesive to entire surface of each cellular-glass <br />insulation unit with serrated trowel complying with insulation manufacturer's written <br />instructions. <br /> <br />3. Coat edges of insulation units with full bed of adhesive to seal joints between insulation <br />and between insulation and adjoining construction. <br />3.5 INSTALLATION OF GENERAL BUILDING INSULATION <br />A. Apply insulation units to substrates by method indicated, complying with manufacturer's written <br />instructions. If no specific method is indicated, bond units to substrate with adhesive or use <br />mechanical anchorage to provide permanent placement and support of units. <br />B. Seal joints between foam-plastic insulation units by applying adhesive, mastic, or sealant to <br />edges of each unit to form a tight seal as units are shoved into place. Fill voids in completed <br />installation with adhesive, mastic, or sealant as recommended by insulation manufacturer. <br />C. Install insulation in cavities formed by framing members according to the following <br />requirements: <br />DocuSign Envelope ID: 775B89AF-3514-4D9E-B148-2FDE4EFF16C2