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Orange County Facility Renovations <br />Hillsborough, NC <br />Smith Sinnett METAL FABRICATIONS <br />2020046/2020047/2020048/2020049/2020055 05 50 00 - 2 <br />C. Shrinkage-Resistant Grout: Factory-packaged, nonmetallic, nonstaining, noncorrosive, nongaseous grout <br />complying with ASTM C1107/C1107M. Provide grout specifically recommended by manufacturer for <br />interior and exterior applications. <br />D. Concrete: Comply with requirements in Section 03 30 00 "Cast -in-Place Concrete" for normal-weight, <br />air-entrained concrete with a minimum 28-day compressive strength of 3000 psi. <br />2.4 FABRICATION, GENERAL <br />A. Shop Assembly: Preassemble items in the shop to greatest extent possible. Disassemble units only as <br />necessary for shipping and handling limitations. Use connections that maintain structural value of joined <br />pieces. Clearly mark units for reassembly and coordinated installation. <br />B. Cut, drill, and punch metals cleanly and accurately. Remove burrs and ease edges to a radius of <br />approximately 1/32 inch unless otherwise indicated. Remove sharp or rough areas on exposed surfaces. <br />C. Form bent-metal corners to smallest radius possible without causing grain separation or otherwise <br />impairing work. <br />D. Form exposed work with accurate angles and surfaces and straight edges. <br />E. Weld corners and seams continuously to comply with the following: <br />1. Use materials and methods that minimize distortion and develop strength and corrosion resistance <br />of base metals. <br />2. Obtain fusion without undercut or overlap. <br />3. Remove welding flux immediately. <br />4. At exposed connections, finish exposed welds and surfaces smooth and blended so no roughness <br />shows after finishing and contour of welded surface matches that of adjacent surface. <br />F. Form exposed connections with hairline joints, flush and smooth, using concealed fasteners or welds <br />where possible. Where exposed fasteners are required, use Phillips flat-head (countersunk) fasteners <br />unless otherwise indicated. Locate joints where least conspicuous. <br />G. Fabricate seams and other connections that are exposed to weather in a manner to exclude water. Provide <br />weep holes where water may accumulate. <br />H. Where units are indicated to be cast into concrete or built into masonry, equip with integrally welded steel <br />strap anchors, not less than 8 inches from ends and corners of units and 24 inches o.c. <br />2.5 MISCELLANEOUS FRAMING AND SUPPORTS <br />A. Fabricate units from steel shapes, plates, and bars of welded construction unless otherwise indicated. <br />Fabricate to sizes, shapes, and profiles indicated and as necessary to receive adjacent construction. <br />2.6 MISCELLANEOUS STEEL TRIM <br />A. Unless otherwise indicated, fabricate units from steel shapes, plates, and bars of profiles shown with <br />continuously welded joints and smooth exposed edges. Miter corners and use concealed field splices <br />where possible. <br />B. Provide cutouts, fittings, and anchorages as needed to coordinate assembly and installation with other <br />work. <br />1. Provide with integrally welded steel strap anchors for embedding in concrete or masonry <br />construction. <br />C. Galvanize exterior miscellaneous steel trim. <br />DocuSign Envelope ID: 09980A3B-0691-41B4-854D-3865F2287392