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INDIAN RIVER COUNTY COURTHOUSE <br />METAL ROOFING REPLACEMENT PROJECT <br />JANUARY 15, 2021 <br />PAGE 5 <br />SECTION 074110 <br />STANDING SEAM METAL ROOF PANELS <br />E. Thermal Movements: Allow for thermal movements from ambient and surface <br />temperature changes by preventing buckling, opening of joints, overstressing of <br />components, failure of joint sealants, failure of connections, and other detrimental <br />effects. Base calculations on surface temperatures of materials due to both solar heat <br />gain and nighttime -sky heat loss. <br />Temperature Change.(Range): 120 deg F (67 deg C), ambient; 180 deg F (100 <br />deg C), material surfaces. <br />2.2 STANDING -SEAM METAL ROOF PANELS <br />A. General: Provide factory -formed metal roof panels designed to be installed by lapping <br />and interconnecting raised side edges of adjacent panels with joint type indicated and <br />mechanically attaching panels to supports using concealed clips in side laps. Include <br />clips, cleats, pressure plates, and accessories required for weathertight installation. <br />1. Aluminum Panel Systems: Unless more stringent requirements are indicated, <br />comply with ASTM E 1637. <br />B. Vertical -Rib, Double Locked, Standing -Seam Metal Roof Panels: Formed with vertical <br />ribs at panel edges and intermediate stiffening ribs symmetrically spaced] between <br />ribs; designed for sequential installation by mechanically attaching panels to supports <br />using concealed clips located under one side of panels, engaging opposite edge of <br />adjacent panels, and mechanically seaming panels together. Panels are to be formed <br />to comply with existing building radius configurations. <br />Subject to compliance with the construction documents, the following <br />manufacturers are approved: <br />a. Peterson Aluminum <br />b. Merchant and Evans <br />C. I M ETCO <br />2. Aluminum Sheet: Coil -coated sheet, ASTM B 209 (ASTM B 209M), alloy as <br />standard with manufacturer, with temper as required to suit forming operations <br />and structural performance required. <br />a. Thickness: 0.040 inch (1.02 mm). <br />b. Surface: Two equally spaced ribs. <br />C. Exterior Finish: Two -coat fluoropolymer. <br />d. Color: Match adjacent panels from manufacturer's standard colors. <br />3. Clips: Two-piece floating to accommodate thermal movement. <br />a. Material: 0.062 -inch- (1.59 -mm-) thick, stainless-steel sheet. <br />4. Joint Type: Double Lock. <br />5. Panel Width: 16 inches (305 mm). <br />6. Panel Height: 2 inches (38 mm). <br />