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DocuSign Envelope ID: B94F2D40-3B3C-47A7-86C2-6F1 B4F92C62C <br /> SECTION 09 51 13 -ACOUSTICAL PANEL CEILINGS <br /> 2.2 ACOUSTICAL PANELS, GENERAL <br /> A. Acoustical Panel Standard: Provide manufacturer's standard panels of configuration indicated that comply with <br /> ASTM E 1264 classifications as designated by types, patterns, acoustical ratings, and light reflectances, unless <br /> otherwise indicated. <br /> 1. Mounting Method for Measuring Noise Reduction Coefficient: Type E-400; plenum mounting in which face of <br /> test specimen is 15-3/4 inches away from test surface per ASTM E 795. <br /> B. Acoustical Panel Colors and Patterns: Match appearance characteristics indicated for each product type. <br /> 1. Where appearance characteristics of acoustical panels are indicated by referencing ASTM E 1264 pattern <br /> designations and not manufacturers' proprietary product designations, provide products selected by Architect <br /> from each manufacturer's full range of products that comply with requirements indicated for type, pattern, <br /> color, light reflectance, acoustical performance, edge detail, and size. <br /> C. Provide acoustical panels treated with Bioblock or BioShield paint which contains fungicide that inhibits or retards <br /> the growth of mold or mildew on their painted surfaces. <br /> 2.3 METAL SUSPENSION SYSTEMS, GENERAL <br /> A. Seismic Loads: Design and size components to withstand seismic loads in accordance with International Building <br /> Code, Section 1621.2.5 for Seismic Design Category B. <br /> B. Metal Suspension System Standard: Provide manufacturer's standard direct-hung metal suspension systems of <br /> types, structural classifications, and finishes indicated that comply with applicable ASTM C 635 requirements. <br /> C. Finishes and Colors, General: Comply with NAAMM's "Metal Finishes Manual for Architectural and Metal Products" <br /> for recommendations for applying and designating finishes. Provide manufacturer's standard factory-applied finish <br /> for type of system indicated. <br /> 1. High-Humidity Finish: Comply with ASTM C 635 requirements for "Coating Classification for Severe <br /> Environment Performance"where high-humidity finishes are indicated. <br /> D. Attachment Devices: Size for five times design load indicated in ASTM C 635, Table 1, Direct Hung, unless <br /> otherwise indicated. <br /> E. Wire Hangers, Braces, and Ties: Provide wires complying with the following requirements: <br /> 1. Zinc-Coated Carbon-Steel Wire:ASTM A 641/A 641 M, Class 1 zinc coating, soft temper. <br /> 2. Size: Select wire diameter so its stress at three times hanger design load (ASTM C 635, Table 1, Direct Hung) <br /> will be less than yield stress of wire, but provide not less than 0.106-inch-diameter wire. <br /> F. Sheet-Metal Edge Moldings and Trim: Type and profile indicated or, if not indicated, manufacturer's standard <br /> moldings for edges and penetrations that fit acoustical panel edge details and suspension systems indicated; <br /> formed from sheet metal of same material and finish as that used for exposed flanges of suspension system <br /> runners. <br /> 1. For lay-in panels with reveal edge details, provide stepped edge molding that forms reveal of same depth and <br /> width as that formed between edge of panel and flange at exposed suspension member. <br /> 2. For circular penetrations of ceiling, provide edge moldings fabricated to diameter required to fit penetration <br /> exactly. <br /> 2.4 ACOUSTICAL SEALANT <br /> A. Acoustical Sealant for Exposed and Concealed Joints: Manufacturer's standard nonsag, paintable, nonstaining <br /> latex sealant complying with ASTM C 834 and the following requirements: <br /> 1. Product is effective in reducing airborne sound transmission through perimeter joints and openings in building <br /> construction as demonstrated by testing representative assemblies according to ASTM E 90. <br /> B. Available Products: Subject to compliance with requirements, products that may be incorporated into the Work <br /> include, but are not limited to,the following: <br /> 1. Acoustical Sealant for Exposed and Concealed Joints: <br /> a. PL Acoustical Sealant; Chemrex, Inc., Contech Brands. <br /> b. AC-20 FTR Acoustical and Insulation Sealant; Pecora Corp. <br /> c. SHEETROCK Acoustical Sealant; United States Gypsum Co. <br /> 2.5 SOUNDPROOFING INSULATION <br /> A. Sound batts installed over ceiling as noted on the drawings. <br /> B. Manufacturers and Product: <br /> 1. Quiet Batt 30 Soundproofing (Basis of Design). <br /> a. NRC .95 <br /> ©BOOMERANG DESIGN#1835 0951 13-2 510 Meadowlands Drive,Hillsborough, NC <br /> ORANGE COUNTY,NC 11/15/18 <br />