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DocuSign Envelope ID:D561B1AE-DF34-4907-AD06-AOEB37BBE427 <br /> CHAPEL HILL ORANGE COUNTY VISITORS BUREAU August 12,2020 <br /> 308 WEST FRANKLIN,CHAPEL HILL,NC <br /> B. Frame Anchors: ASTM A 591/A 591M, Commercial Steel (CS), 40Z (12G) coating <br /> designation;mill phosphatized. <br /> 1. For anchors built into exterior walls, steel sheet complying with ASTM A 1008/A 1008M <br /> or ASTM A 1011/A 1011M, hot-dip galvanized according to ASTM A 153/A 153M, <br /> Class B. <br /> C. Inserts,Bolts, and Fasteners: Hot-dip galvanized according to ASTM A 153/A 153M. <br /> D. Powder-Actuated Fasteners in Concrete: Fastener system of type suitable for application <br /> indicated, fabricated from corrosion-resistant materials,with clips or other accessory devices for <br /> attaching hollow metal frames of type indicated. <br /> E. Grout: ASTM C 476, except with a maximum slump of 4 inches (102 mm), as measured <br /> according to ASTM C 143/C 143M. <br /> F. Mineral-Fiber Insulation: ASTM C 665,Type I (blankets without membrane facing); consisting <br /> of fibers manufactured from slag or rock wool with 6- to 12-lb/cu. ft. (96- to 192-kg/cu. m) <br /> density; with maximum flame-spread and smoke-development indexes of 25 and 50, <br /> respectively;passing ASTM E 136 for combustion characteristics. <br /> G. Glazing: Comply with requirements in Division 08 Section "Glazing." <br /> H. Bituminous Coating: Cold-applied asphalt mastic, SSPC-Paint 12, compounded for 15-mil <br /> (0.4-mm) dry film thickness per coat. Provide inert-type noncorrosive compound free of <br /> asbestos fibers, sulfur components,and other deleterious impurities. <br /> 2.3 STANDARD HOLLOW METAL FRAMES <br /> A. General: Comply with ANSI/SDI A250.8 and with details indicated for type and profile. <br /> B. Exterior Frames: Fabricated from metallic-coated steel sheet. <br /> 1. Fabricate frames with mitered or coped corners. <br /> 2. Fabricate frames as full profile welded unless otherwise indicated. <br /> 3. Frames for Level 2 Steel Doors: 0.053-inch- (1.3-mm-)thick steel sheet. <br /> 4. Frames for Level 3 Steel Doors: 0.053-inch- (1.3-mm-)thick steel sheet. <br /> C. Interior Frames: Fabricated from cold-rolled steel sheet unless metallic-coated sheet is <br /> indicated. <br /> 1. Fabricate frames with mitered or coped corners. <br /> 2. Fabricate frames as knocked down in parking deck levels; full profile welded at all other <br /> areas. <br /> 3. Fabricate knocked-down, drywall slip-on frames for in-place gypsum board partitions.. <br /> 4. Frames for Level 2 Steel Doors: 0.053-inch- (1.3-mm-)thick steel sheet. <br /> 5. Frames for Level 3 Steel Doors: 0.053-inch- (1.3-mm-)thick steel sheet. <br /> 6. Frames for Wood Doors: [0.042-inch- (1.0-mm-)] [0.053-inch- (1.3-mm-)] [0.067-inch- <br /> (1.7-mm-)] thick steel sheet. <br /> HOLLOW METAL DOORS AND FRAMES 081113 -4 <br />