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Opening of Quotes - Olive Street Station Roof Repairs Proj No. 120-028 - Midland Engineering Company, Inc.
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Opening of Quotes - Olive Street Station Roof Repairs Proj No. 120-028 - Midland Engineering Company, Inc.
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8/26/2020 8:48:51 AM
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Board of Public Works
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Projects
Document Date
8/25/2020
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PART 3 - EXECUTION: <br /> <br />3.1 INSPECTION <br /> <br />A. All surfaces to which sheet metal is to be applied shall be smooth, sound, clean, <br />dry, and free from defects that might affect the application. <br /> <br />3.2 INSTALLATION <br /> <br />A. Gutters <br />1. Gutters shall match existing historic copper gutters in size and profile. <br />2. Shop-fabricate work to greatest extent possible. Fabricate for waterproof <br />and weather-resistant performance, with expansion, provisions for running <br />work, sufficient to permanently prevent leakage, damage, or deterioration <br />of the work. <br />3. Seams: Tin edges to be seamed, form seams and solder. Rivet joints for <br />additional strength where required. <br />4. Underlayment: Where installation is to be directly on wood, install a ship <br />sheet of red rosin paper on a course of asphalt saturated felt. <br />5. Bed flanges of work in a thick coat of bituminous roofing cement where <br />required for waterproof performance. <br />6. <br /> <br />B. Joints: <br />1. Provide suitable watertight expansion joints for runs of more than 40'-0", <br />except where closer spacing is indicated on the Drawings or required for <br />proper installation. <br />2. Join parts with rivets or sheet metal screws where necessary for strength <br />and stiffness. <br /> <br />3.3 CLEANING AND PROTECTION <br /> <br />A. Clean exposed copper, surfaces, removing substances that might cause <br />corrosion of copper or deterioration of finishes. <br /> <br />B. Protection: Advise Contractor of required procedures for surveillance and <br />protection of flashings and sheet copper work during construction to ensure that <br />the work will be without damage or deterioration other than natural weathering at <br />time of substantial completion. <br /> <br />END OF SECTION <br /> COPPERS GUTTERS <br />07710-2 <br /> <br />
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