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4. Planning the Module Area <br /> For installation, the QRails are fastened to the <br /> building structure with roof attachments (e.g. flashed f........................................... I ........................................... <br /> roof attachments). The roof attachments must be <br /> mounted at defined distances, depending on the _ <br /> spacing of the supporting structure, the position on <br /> the roof, and the site conditions. The layout should h �- <br /> 1 <br /> be verified using the QDesign tool or a project-related <br /> structural analysis by a qualified professional. <br /> a Height of the module field: Number of modules <br /> vertically x module length (+ any clearances) �- <br /> b Width of the module array: 0 <br /> Using standard end clamps : Number of modules <br /> horizontally x (module width + .75in ) + 2.4in. /61mm. to <br /> Using hidden end clamp: Number of modules <br /> horizontally (module width + .75in ). <br /> CVertical spacing of the base rails: Refer to module <br /> manufacturer's acceptable clamping zones or <br /> mounting point locations. <br /> d Horizontal attachment point spacing: Dependent Image 4.1 <br /> upon roof attachment method and site-specific Module Area <br /> parameters. <br /> e Distance between the modules = 0.75 in. <br /> f Distance between module rows = 0.75 in. minimum, no maximum distance provided gap does not result in snow damming <br /> Risk of fatal injury due to falling. Falling from the roof can result in serious injuries or death. <br /> ' ■ Please wear and use proper protective equipment. <br /> • ■ Secure yourself against falling. <br /> DANGER ■ Do not perform any work in strong winds. <br /> Risk of fatal injury from falling objects. Parts falling from the roof can result in serious injuries or <br /> death. <br /> ■ Block off the hazard area on the ground prior to beginning work to prevent falling objects <br /> injuring persons. <br /> ■ Ensure that no parts can fall off the roof. <br /> • M <br /> ■ Please wear required protective equipment. <br /> DANGER <br /> ■ Do not linger in the hazard area. <br /> ■ After completion of the installation, re-check area for loose objects and re-check for proper <br /> attachment of racking and modules. <br /> B1 7.2.3-46 16 Jul-2019, Rev 4.2 <br />