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SM SOLAR <br />MOUNT INSTALLATION GUIDE PAGE <br />PLANNING YOUR SOLARMOUNT INSTALLATIONS <br />The installation can be laid out with rails parallel to the rafters or perpendicular <br />to the rafters. Note that SOLARMOUNT rails make excellent straight edges for <br />doing layouts. <br />Center the installation area over the structural members as much as possible. <br />Leave enough room to safely move around the array during installation. <br />Some building codes and fire codes require minimum clearances around such <br />installations, and the installer should check local building code requirements for <br />compliance. <br />The length of the installation area is equal to: <br />Standard Series: <br />• the total width of the modules, <br />• plus 1/4” inch for each space between modules (for mid- clamp), <br />• plus approximately 3" ( 1½ inches for each Endclamp) <br />Pro Series: <br />• the total width of the modules, <br />• plus 1” inch for each space between modules (for mid- clamp), <br />• plus 0 to 1" ( 0 to ½ inches for each Endclamp) <br />Peak (Ridge) <br />Ea <br />v <br />e <br />Gutter <br />LOW PROFILE <br />MODE <br />HIGH PROFILE <br />MODE <br />1½-1¾” <br />Foot spacing / <br />Rail Span “L” <br />Rafters (Building Structure) <br />Note: Modules should be positioned so that rails are flush with edge of <br />module or extending no more than 1/2" beyond edge of module. The <br />modules should not extend past (overhang) the ends of rails. <br />SYSTEM LAYOUT <br />RAILS MAY BE PLACED PARALLEL OR PERPENDICULAR TO RAFTERS <br />LAYING OUT L-FEET FOR TOP CLAMPS <br />L-feet, in conjunction with proper flashing equipment and techniques, can be <br />used for attachment through existing roofing material, such as asphalt shingles, <br />sheathing or sheet metal to the building structure. <br />Locate and mark the position of the L-feet lag screw holes within the installation <br />area as shown below. Follow manufacturer module installation guide for rail <br />spacing based on appropriate mounting locations <br />NOTE: FOR EXPANSION JOINT REQUIREMENTS, REFER TO PAGE F. RAIL LENGTHS <br />AND LOCATIONS OF L-FEET FOR EXPANSION JOINTS WILL NEED <br />TO BE DETERMINED AT THIS STAGE IN PLANNING SYSTEM LAYOUT. <br />If multiple rows are to be installed adjacent to one another, it is not likely that <br />each row will be centered above the rafters. Adjust as needed, following the <br />guidelines below as closely as possible. <br />Refer to Unirac Solarmount D&E Guide & U-Builder for allowable spans <br />and cantilevers. <br />LAYOUT WITH RAILS PERPENDICULAR TO RAFTERS (RECOMMENDED) <br />Ea <br />v <br />e <br />Overhang 33% L max <br /> <br /> <br />• • <br /> <br />Lower Roof Edge <br />• <br />• <br />Rail <br />B <br />2110 W 7th St - <br />2017778512/28/22