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:PUNIRAC 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 spliee - Joins and aligns rail sectinnf iii rn gingle <br />length ofrail. It can form either a rigid or thermal <br />expansion joint, 8 inches long, predrilled. Aluminum <br />extrusion, anodized. <br />e Self-drilling screw -<30710 XWO-=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 (33/8" x 3/4") - Use one per L-foot to secure <br />rail to L-foot. Stainless steel. <br /> Flange nut (3/8") - Use one per L-foot to secure rail to <br />L-foot. Stainless steel. <br /> Plattop standoff (optional) 33/8") -Use standoffs to <br />increase the height o f the array above the surface o f the <br />roo f or to allow for the use of fiashings. Use one per <br />L-foot. One piece: Service Condjtion 4 (very severe) <br />zinc-plated-welded steel. Includes 3/8" x 44" bolt with <br />SolarMount standard rail components. <br />lock washer for attaching L-foot. Flashings: Use one per <br />standoff. Unirac offers appropriate fiashings 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 />wacher for attaching 1.-foot, and two 5/16" lag bolts. <br /> Lag screw for L-foot (5/16") -Attaches standoff to <br />rafter. <br />e Top Mounting Clamps <br />® Top Mounting Grounding Clips and Lugs <br />Iliblallei· bupplied illdlerlala: <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 />• Waterproo f roo fing sealant - Use a sealant appropriate <br />to your roofing material. Consult with the company <br />currently providing warranty o f roo fing. <br />Figure 4.