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ROOFING REPLACEMENT, RECOVER AND REPAIR PROJECT PAGE 7 <br />INDIAN RIVER COUNTY - JAIL COMPLEX SECTION 077100 <br />JANUARY 4, 2018 ROOF SPECIALTIES - METAL COPINGS <br />2. Coordinate application of self -adhering sheet underlayment under roof specialties <br />with requirements for continuity with adjacent air barrier materials. <br />B. Slip Sheet: Install with tape or adhesive for temporary anchorage to minimize use of <br />mechanical fasteners. under roof specialties. Apply in shingle fashion to shed water, <br />with lapped joints of not less than 2 inches (50 mm). <br />3.3 . INSTALLATION, GENERAL <br />A. General: Install roof specialties according to manufacturer's written instructions. Anchor <br />roof specialties securely in place, with provisions for thermal and structural movement. <br />Use fasteners, solder, protective coatings, separators, undedayments, sealants, and <br />other miscellaneous items as required to complete roof -specialty systems. <br />1. Install roof specialties level, plumb, true to line and elevation; with limited oil - <br />canning and without warping, jogs in alignment, buckling, or tool marks. <br />2. Provide uniform, neat seams with minimum exposure of solder and sealant. <br />3. Install roof specialties to fit substrates and to result in weathertight performance. <br />Verify shapes and dimensions of surfaces to be covered before manufacture. <br />4. Torch cutting of roof specialties is not permitted. <br />5. Do not use graphite pencils to mark metal surfaces. <br />B. Metal Protection: Protect metals against galvanic action by separating dissimilar metals <br />from contact with each other or with corrosive substrates by painting contact surfaces <br />with bituminous coating or by other permanent separation as recommended by <br />manufacturer. <br />1. Coat concealed side of stainless-steel roof specialties with bituminous coating <br />where in contact with wood, ferrous metal, or cementitious construction. <br />C. Expansion Provisions: Allow for thermal expansion of exposed roof specialties. <br />1. Space movement joints at a maximum of 12 feet (3.6 m) with no joints within 18 <br />inches (450 mm) of comers or intersections unless otherwise indicated on <br />Drawings. . <br />2. When ambient temperature at time of installation is between 40 and 70 deg F (4 <br />and 21 deg C), set joint members for 50 percent movement each way. Adjust <br />setting proportionately for installation at higher ambient temperatures. <br />D. Fastener Sizes: Per Manufacturer Test Data <br />E. Seal concealed joints with butyl sealant as required by roofing -specialty manufacturer. <br />F. Seal joints as required for weathertight construction. Place sealant to be completely <br />concealed in joint. Do not install sealants at temperatures below 40 deg F (4 deg C). <br />G. Soldered Joints: Clean surfaces to be soldered, removing oils and foreign matter. Pre - <br />tin edges of sheets to be soldered to a width of 1-1/2 inches (38 mm); however, reduce <br />pre -tinning where pre -tinned surface would show in completed Work. Tin edges of <br />uncoated copper sheets using solder for copper. Do not use torches for soldering. Heat <br />