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Gateway Park Center PERKINS+WILL <br /> 810495.000 <br /> 12/06/18 <br /> <br /> <br />NON-STRUCTURAL METAL FRAMING <br /> 09 22 16 - 4 <br /> <br /> <br />2. Steel Studs and Runners: ASTM C 645. <br />a. Minimum Base-Metal Thickness: 0.0179 inch. <br />b. Depth: As indicated on Drawings. <br />3. Hat-Shaped, Rigid Furring Channels: ASTM C 645, 7/8 inch deep. <br />a. Minimum Base-Metal Thickness: 0.0179 inch. <br />F. Grid Suspension System for Gypsum Board Ceilings: ASTM C 645, direct-hung <br />system composed of main beams and cross-furring members that interlock. <br />1. Products: Subject to compliance with requirements, provide one of the <br />following: <br />a. Armstrong World Industries, Inc; Drywall Grid Systems. <br />b. Chicago Metallic Corporation; 640/660 Drywall Ceiling Suspension. <br />c. United State Gypsum Company; Drywall Suspension System. <br />2.4 AUXILIARY MATERIALS <br />A. General: Provide auxiliary materials that comply with referenced installation <br />standards. <br />1. Fasteners for Metal Framing: Of type, material, size, corrosion resistance, <br />holding power, and other properties required to fasten steel members to <br />substrates. <br />B. Isolation Strip at Exterior Walls: Provide one of the following: <br />1. Asphalt-Saturated Organic Felt: ASTM D 226/D 226M, Type I (No. 15 asphalt <br />felt), nonperforated. <br />2. Foam Gasket: Adhesive-backed, closed-cell vinyl foam strips that allow <br />fastener penetration without foam displacement, 1/8 inch thick, in width to <br />suit steel stud size. <br />PART 3 - EXECUTION <br />3.1 EXAMINATION <br />A. Examine areas and substrates, with Installer present, and including welded hollow- <br />metal frames, cast-in anchors, and structural framing, for compliance with <br />requirements and other conditions affecting performance of the Work. <br />B. Proceed with installation only after unsatisfactory conditions have been corrected.