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Gateway Park Center PERKINS+WILL <br /> 810495.000 <br /> 12/06/18 <br /> <br /> <br />STRUCTURAL-SEALANT-GLAZED CURTAIN WALLS <br /> 08 44 23 - 9 <br /> <br /> <br />4. Rigidly secure nonmovement joints. <br />5. Install anchors with separators and isolators to prevent metal corrosion and <br />electrolytic deterioration and to prevent impeding movement of moving joints. <br />6. Where welding is required, weld components in concealed locations to <br />minimize distortion or discoloration of finish. Protect glazing surfaces from <br />welding. <br />7. Seal joints watertight unless otherwise indicated. <br />B. Metal Protection: <br />1. Where aluminum is in contact with dissimilar metals, protect against galvanic <br />action by painting contact surfaces with primer, applying sealant or tape, or <br />installing nonconductive spacers as recommended by manufacturer for this <br />purpose. <br />2. Where aluminum is in contact with concrete or masonry, protect against <br />corrosion by painting contact surfaces with bituminous paint. <br />C. Install components plumb and true in alignment with established lines and grades. <br />D. Install glazing as specified in Section 08 80 00 "Glazing." <br />E. Install weatherseal sealant according to Section 07 92 00 "Joint Sealants" and <br />according to sealant manufacturer's written instructions, to produce weatherproof <br />joints. Install joint filler behind sealant as recommended by sealant manufacturer. <br />3.2 FIELD QUALITY CONTROL <br />A. Testing Agency: Engage a qualified testing agency to perform tests and inspections. <br />B. Test Area: Perform tests on representative areas of structural -sealant-glazed <br />curtain walls. <br />C. Field Quality-Control Testing: Perform the following test on representative areas of <br />structural-sealant-glazed curtain walls. <br />1. Structural-Sealant Adhesion: Test structural sealant according to <br />recommendations in ASTM C 1401, Destructive Test Method A, "Hand Pull Tab <br />(Destructive)," Appendix X2. <br />a. Test a minimum of six areas on each building facade. <br />b. Repair installation areas damaged by testing. <br />2. Air Infiltration: Areas shall be tested for air leakage of 1.5 times the rate <br />specified for laboratory testing in "Performance Requirements" Article, but not <br />more than 0.50 cfm/sq. ft. of fixed wall area when tested according to <br />ASTM E 783 at a minimum static-air-pressure differential of 6.24 lbf/sq. ft. <br />a. Test Area: One bay wide, but not less than 30 feet, by one story of <br />structural-sealant-glazed curtain wall. <br />b. Perform a minimum of three tests in areas as directed by Architect.