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:FUNIRAC Unirac Code-Compliant Installation Manual SolarMount <br />Part III. Installing SolarMount <br />The Unirac Code-Compliant Installation Instructions support applications for building permits for <br />photovoltaic arrays using Unirac PV module mounting systems. <br />This manual, SolarMount Planning and Assembly, governs installations using the SolarMount and <br />SolarMount HD (Heavy Duty) systems. <br />[3.1.] SolarMount rail components <br /> Rail - Supports PV modules. Use two per row of <br />modules. Aluminum extrusion, anodized. <br /> Rail splice - Joins and aligns rail sections into single <br />length of rail. It can form either a rigid or thermal <br />expansion joint, 8 inches long, predrilled. Aluminum <br />extrusion, anodized. <br />e Self-drilling screw- (No. 10 x 3/0 - Use 4 per rigid <br />splice or 2 per expansion joint. Galvanized steel. <br /> L-foot-Use to secure rails either through roofing <br />material to building structure or standoffs. Refer to <br />loading tables for spacing. Note: Please contact Unirac <br />for use and specification of double L-foot. <br /> L-foot bolt (3/8" x 3/4") - Use one per L-foot to secure <br />rail to L-foot. Stainless steel. <br /> Flange nut (3/8"3 - Use one per L-foot to secure rail to <br />L-foot. Stainless steel. <br /> Flattop standoff (optional) (3/8") - Use standoffs to <br />increase the height o f the array above the surface of the <br />roof or to allow for the use of flashings. Use one per <br />L-foot. One piece: Service Condition 4 (very severe) <br />zinc-plated-welded steel. Includes 3/8" x W bolt with <br />0 <br />Orr·- <br />1·i <br />8l 11 <br />0 Figure 4. SolarMount standard rail components. <br />lock washer for attaching L-foot. Flashings: Use one per <br />standoff. Unirac offers appropriate flashings for both <br />standoff types. <br />Note: There is also a flange type standoff that does not <br />require an L-foot. <br />() Aluminum two-piece standoff (optional) (4" and 7") - <br />Use one per L-foot. Two-piece: Aluminum extrusion. <br />Includes 3/8" x 3/4" serrated flange bolt with EPDM <br />washer for attaching L-foot, and two 5/16" lag bolts. <br /> Lag screw for L-foot (5/16") - Attaches standoff to <br />rafter. <br />® Top Mounting Clamps <br />® Top Mounting Grounding Clips and Lugs <br />Installer supplied materials: <br />• Lag screw for L-foot - Attaches L-foot or standoff to <br />rafter. Determine the length and diameter based on pull- <br />out values. If lag screw head is exposed to elements, use <br />stainless steel. Under flashings, zinc plated hardware is <br />adequate. <br />• Waterproof roofing sealant - Use a sealant appropriate <br />to your roofing material. Consult with the company <br />currently providing warranty of roofing. <br />0 <br />Pagr <br />14