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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 />2. Pattern: G (smooth). <br />C. Color: White. <br />D. LR: Not less than 0.85. <br />E. NRC: Not less than 0.70. <br />F. CAC: Not less than 35. <br />G. Edge /Joint Detail: Reveal sized to fit flange of exposed suspension system members. <br />H. Thickness: 1 inch (25 nun). <br />I. Modular Size: 24 by 24 inches (6 10 by 610 mm). <br />2.3 METAL SUSPENSION SYSTEMS, GENERAL <br />A. Metal Suspension System Standard: Provide manufacturer's standard direct -hung metal <br />suspension systems of types, structural classifications, and finishes indicated that comply with <br />applicable requirements in ASTM C 635. <br />B. Finishes and Colors, General: Comply with NAAMM's "Metal Finishes Manual for <br />Architectural and Metal Products" for recommendations for applying and designating finishes. <br />Provide manufacturer's standard factory - applied finish for type of system indicated. <br />C. Attachment Devices: Size for five times the design load indicated in ASTM C 635, Table 1, <br />"Direct Hung," unless otherwise indicated. Comply with seismic design requirements. <br />D. Wire Hangers, Braces, and Ties: Provide wires complying with the following requirements: <br />1. Zinc - Coated, Carbon -Steel Wire: ASTM A 641/A 641M, Class 1 zinc coating, soft <br />temper. <br />2. Size: Select wire diameter so its stress at 3 times hanger design load (ASTM C 635, <br />Table 1, "Direct Hung ") will be less than yield stress of wire, but provide not less than <br />0.106 -inch- (2.69 -mm -) diameter wire. <br />2.4 METAL SUSPENSION SYSTEM FOR ACOUSTICAL PANEL CEILINGS A -1 <br />A. Products: <br />1. Armstrong World Industries, Inc.; Prelude ML 15/16" Exposed Tee. <br />2. Chicago Metallic Corporation; Matrix. <br />3. USG Interiors, Inc.; Donn Brand DX. <br />ACOUSTICAL PANEL CEILINGS 095113-4 <br />