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SolarMount Unirac Code-Compliant Installation Manual :FUNIRAC [3.3.2] Laying out the installing L-feet L-feet are used for installation through existing low profile roofing material, such as asphalt shingles or sheet metal. They are also used for most ground mount installations. To ensure that the L-feet will be easily accessible during flush installation: • Use the PV module mounting holes nearest the ends of the modules. 11 Install Second ITII 11 11 11 11 11 11 11 11 11 11 11 ower 1 Dof SolarMoutt Rails 11 1 1 • Situate the rails so that: footing bolt slots face outward. The single slotted square side of the L-foot must always lie against the roof with the ----In! double-slotted side perpendicular to the roof. - - Foot spacing (along the same rail) and rail overhang depend on design wind loads. Install half the L-feet: 11 3 stall First - -7- 11 Rafters • If rails are perpendicular to rafters (Fig. 23), install the feet closest t:o the lower edge of the roof. • If rails are parallel to rafters (Fig. 24), install the feet for one of the rails, but not both. For the L-feet being installed now, drill pilot holes through the roofing into the center of the rafter at each lag screw hole location. Squirt sealant into the hole and onto the shafts of the lag screws. Seal the underside of the L-feet with a sealant. Securely fasten the L-feet to the building structure with the lag screws. Ensure that the L-feet face as shown in Figure 23 or Figure 24. Figure 23.Layout with rails perpendicular to rafters Rafterr Hold the rest of the L-feet and fasteners aside until the panels are ready for the installation. +t +6 .4 - 4 -Install L-Feet First -- Blocks -Install L-Feet Second Figure 24. Layout with rails parallel to rahers. 0 Pax• 23