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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 ext:rusion, 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. Aiuminum <br />extrusion, anodized. <br /> Self-drilling-screw=-(No. 10 x 34'3-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 34") - Use one per L-foot to secure <br />rail to L-foot. Stainless steel. <br />R. <br />0 <br />Figure 4. SolarMount standard rail components. <br />lock washer for attaching L-foot. Flashings: Use one per <br />standoff. Unirac offers appropriate flashings forboth <br />standofftypes. <br />Note: There is also a ffange type standoffthat 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 fg attaching L-foot, and two 5/1©lag bolts. <br /> Lag screw for L-foot (5/16") -Attaches standoffto <br />rafter. <br />* Top Mounting Clamps <br />® Top Mounting Grounding Clips and Lugs <br />Instalier-supplied materials:- --· - - - -------· - - <br /> Flange nut (3/87 - Use one per L-foot to secure rail to <br />L-foot. Stainless steel. <br />@ Flattop standoff (optional) (3/89 - Use standoffs to <br />increase the height of the array above the surface o f 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 />Lag screw for L-foot - Attaches L-foot or standoff to <br />rafter. Determine the length and diameter based on pull- <br />out values. [flag screw head is exposed to elements, use <br />stainless steel. Under flashings, zinc plated hardware is <br />adequate. <br />Waterproo f roofing sealant - Use a sealant appropriate <br />to your roofing material. Consult with the company <br />currently providing warranty of roofing. <br />.. <br />1 <br />Page <br />14