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40-27 BUILDING <br />INSULATION <br />BRPH ARCHITECTS -ENGINEERS, INC. <br />IPART 3 - EXECUTION <br />' <br />3.1 <br />A. <br />' <br />3.2 <br />PREPARATION <br />Clean substrates of substances that are harmful to insulation or that interfere with <br />insulation attachment. <br />INSTALLATION, GENERAL <br />A. Comply with insulation manufacturer's written instructions applicable to products and <br />applications indicated. <br />B. Install insulation that is undamaged, dry, and unsoiled and that has not been left <br />exposed to ice, rain, or snow at any time. <br />C. Extend insulation to envelop entire area to be insulated. Cut and fit tightly around <br />obstructions and fill voids with insulation. Remove projections that interfere with <br />placement. <br />D. Provide sizes to fit applications indicated and selected from manufacturer's standard <br />thicknesses, widths, and lengths. Apply single layer of insulation units to produce <br />thickness indicated unless multiple layers are otherwise shown or required to make up <br />total thickness. <br />3.3 INSTALLATION OF INSULATION FOR FRAMED CONSTRUCTION <br />A. Apply insulation units to substrates by method indicated, complying with manufacturer's <br />written instructions. If no specific method is indicated, bond units to substrate with <br />adhesive or use mechanical anchorage to provide permanent placement and support <br />' of units. <br />B. Mineral -Wool Blanket Insulation: Install in cavities formed by framing members <br />according to the following requirements: <br />1. Use insulation widths and lengths that fill the cavities formed by framing <br />members. If more than one length is required to fill the cavities, provide lengths <br />that will produce a snug fit between ends. <br />2. Place insulation in cavities formed by framing members to produce a friction fit <br />between edges of insulation and adjoining framing members. <br />3. Maintain 3-inch clearance of insulation around recessed lighting fixtures not rated <br />for or protected from contact with insulation. <br />4. For metal -framed wall cavities where cavity heights exceed 96 inches, support <br />unfaced blankets mechanically and support faced blankets by taping flanges of <br />insulation to flanges of metal studs. <br />C06922.001.00 0721 00 - 3 <br />05-22-14 <br />