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:FUNIRAC Unirac Code-Compliant Installation Manual SolarMount <br />[3.2.3] Laying out standoffs <br />Standoffs (Figure 10) are used to increase the height of the <br />array above the surface of the roof. Pair each standoff with a <br />flashing to seal the lag bolt penetrations to the roof. <br />Use Figure 11 or 12 to locate and mark the location of the <br />standoff lag screw holes within the installation area. <br />Remove the tile or shake underneath each standoff location, <br />exposing the roofing underlayment. Ensure that the standoff <br />base lies flat on the underlayment, but remove no more mate- <br />rial than required for the flashings to be installed properly. <br />The stando must befirmly attached to the building structure. <br />11 <br />Figure 10. Raisedflange standoff (left) <br />andflat top standotfused in conjunction <br />with an L-foot. <br />If multiple high-profile rows are to be <br />Overhang 33% L max -ICL Foot spacing/ -installed adjacent to each other, it may not <br />_RgiLipan'.L_ _31.- -be possible for each row to be centered above <br />1 1 a the rafters. Adjust as needed, following theAl guidelines of Fig. 12 as closely as possible.178" f <br />tl <br />Lower roof edge - Rafters -4 <br />(8uilding Structure) <br />Note: Modules must be centered symmetrically on the rails <br />Figure 11. Layout with rails perpendicular to rafters.perpendicular to rafters. <br />\-f A, j3/811 <br />Installing standoffs: <br />Drill 3/16 inch pilot holes through the <br />underlayment into the center of the rafters at <br />each standoff location. Securely fasten each <br />standoff to the rafters with the two 5/16" lag <br />screws. <br />Ensure that the standoffs face as shown in <br />Figure 11 or 12. <br />Unirac steel and aluminum two-piece <br />standoffs ( 125/8" O.D.) are designed for <br />collared flashings available from Unirac. <br />Install and seal flashings and standoffs <br />using standard building practices or as the <br />company providing roofing warranty directs. <br />jIii V <br />I%C «123> h L__-1 Fogt spacing/ + - 3/8,1 <br />1 <br />/ F7 - - -T-Nall Span "L" <br />11 /! 1 1 <br />1 <br />1 ..... ...C4 4. <br />1 1 'Overhang 33% L.maxLower roof edge I L_. 1 1 <br />1 44 Rafters (Building Structure) <br />t <br />Note: Modules must be centered symmetrically on the rails <br />Figure 12. Layout with rails parallel to rafters. <br />0 <br />PaRr <br />18