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DIVISION 07 Section 07620 - Sheet Metal Flashing and Trim i <br /> 2.03 MISCELLANEOUS � <br /> A. As follows: <br /> 1. Solder.ASTM B 32,Grade Sn50. � <br /> 2. Fasteners:Noncorrosive metal. Match finish of exposed heads with material being <br /> fastened. � <br /> 3. Asphalt Mastic:SSPC Paint 12, asbestos free,solvent type. <br /> 4. Roofing Cement:ASTM D 4586,Type I, asbestos free,asphalt based. <br /> 5. Mastic Sealant:Polyisobutylene;nonhazdening,nonskinning,nondrying, norunigrating <br /> sealant. � <br /> 6. Elastomenc Sealant:As specified in Division 7 Section, "Joint Sealants." <br /> 7. Epoxy Seam Sealer 2-part,noncorrosive,aluminum seam cementing compound. <br /> 8.' Adhesives:Type recommended for waterproof and weather resistant seaming and � <br /> adhesive. <br /> 9. Qips,Straps,Anchoring Devices,and Similaz Accessories:Compatible with material <br /> being installed. � <br /> 2.04 FABRICATION <br /> A. Fabricate sheet metal Ilashing and trim to comply with recommendations of SMACNA's � <br /> "Architectural Sheet Metal Manual"that apply to the design,dimensions,metal,and other <br /> characteristics of the item indicated. � <br /> 1. Gutters: "Colorklad"-24 gauge. <br /> 2. Downspouts: "Colorkiad"-24 gauge. � <br /> 3. Conductor Heads: "Colorklad"24 gauge. <br /> B. Shop Finish,Rain Damage: "Colorlciad"-24 gau e.Baked-on-shop finish on gutters, <br /> downspouts,and similaz exposed units;l.0 mil�0.025 mm)dry film thckness.Color to � <br /> match fascia. <br /> PART 3. EXECUTION , <br /> 3.01 INSTALLATION � <br /> A. Comply with manufacturer's instructions and SMACNA's"Architectural Sheet Metal <br /> Manual".Allow for thermal expansion;set true to line and level as indicated.Install <br /> work with laps,joints,and seams permanentty watertight and weatherproof;conceal � <br /> fasteners where possible. <br /> 1. Roof-Edge Flashings:Secure metal flashings at roof edges according to FM � <br /> Loss Prevention Data Sheet 1-49 for specified wind zone. <br /> B. Expansion Provisions:Provide for thermal expansion of exposed sheet metal work � <br /> Space movement joints at maximum of 10 feet(3 m)with no joints atlowed within 24 <br /> inches(610 mm)of rnrner or intersection.Where lapped or bayonet-type expansion <br /> provisions in Work cannot be used or would not be suHicienfly weatherproof and <br /> waterproof,form expansion joints of intermeshing hooked flanges,not less than 1 inch , <br /> (25 mm)deep,filled with mastic sealant(concealed within joints). <br /> � <br /> 07620- 2 <br /> HENNEPIN COiTNfY Orono Salt Storage <br /> March 22,2002 Project No.:0031569 Contract No.:0751R2 ' <br />