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A. Visual Review/Contractor's Site Audit of Existing Conditions: <br />1) ls the roof a single roof without a reroof overlay? <br />2) Does the roof structure appear structurally sound, without signs of alterations <br />or significant structural deterioration or sagging, as illustrated in Figure 1? <br />B. Roof Structure Data: <br />l.) Measured roof slope (e.9. 6:12): <br />2) Measured rafter spacing (center-to-center): <br />3) Type of roof framing (rafter or manufactured truss): <br />2. SOLAR ARRAY CH ECKS <br />Elv trN <br />dv tr N <br />4 :72 <br />l6 inch <br />E Rafte; <br />-EfTruss <br />STRUCTURAT CRITERIA FOR RESIDENTIAL FTUSH.MOUNTED SOTAR ARRAYS <br />1. ROOF CHECKS <br />A. Flush-mounted Solar Array: <br />1) ls the plane of the modules (panels) parallel to the plane of the roof? <br />2) ls there a 2" to 10" gap between underside of module and the roof surface? <br />3) Modules do not overhang any roof edges (ridges, hips, gable ends, eaves)? <br />B. Do the modules plus support components weigh no more than: <br />4 psf for photovoltaic arrays or 5 psf for solar thermal arrays? <br />C. Does the array cover no more than half of the total roof area (all roof planes)? <br />D. Are solar support component manufacturer's project-specific completed worksheets, <br />tables with relevant cells circled, or web-based calculator results attached? <br />E. ls a roof plan of the module and anchor layout attached? (see FiBure 2) <br />F. Downward Load Check (Anchor Layout Check): <br />1) Proposed anchor horizontal spacing (see Figure 2): <br />2) Horizontal anchor spacing per Table 1: <br />3) ls proposed anchor horizontal spacing equal to or less than Table 1 spacing? <br />G. Wind Uplift Check (Anchor Fastener Check): <br />1)Anchor fastener data (see Figure 3): <br />a. Diameter of lag screw hanger bolt or self'drilling screw: <br />b. Embedment depth of rafter: <br />c. Number ofscrews per anchor (typically one): <br />d. Are 5/16" diameter lag screws with 2.5" embedment into the rafter <br />used, OR does the anchor fastener meet the manufacturer's guidelines? <br />N <br />a <br />a <br />a <br />6 <br />E <br />E <br />tr <br />tr <br />tr <br />o <br />oY <br />N <br />N <br />N <br />N <br />N <br />ON <br />trN <br />4 :-- o"n-in <br />4'- o "r-rnIY-trN <br />inch <br />inch <br />t65/ <br />5 <br />EIY trN <br />3, SUMMARY <br />B A. All items above are checked YES. No additional calculations are required. <br />E B. One or more items are checked NO. Attach project-specific drawings and calculations stamped and signed by a <br />California-licensed civil or structural engineer <br />2545 N HESPERIAN ST, <br />Job Addr SANIA ANA, cA e?706 Permit #l <br />Contractor/lnstaller: ALPI{At:LE(ITRICA(l/rr(l License # & Class: ,960172 (C-10) <br />121p.. 612611{)17 Phone # {71'I)193-99:0Signature <br />Oplionol Addirionol Rofter Spon Check Crilerio <br />I At option of CBO, insert rows (4) to (7) below into table above after row 1.8.(3) ] <br />1. ROOF CH ECKS <br />B. Roof Structure Data: <br />4) Measured rafter size (e.9. L3l4 x33/4, nor 2x4ll <br />5) Measured rafter horizontal span (see Figure 4): <br />6) Horizontal rafter span per Table 2: <br />7) ls measured horizontal rafter span less than Table 2 span?OY ON <br />inch <br />_"ft-in <br />_"ft-in <br />El Truss <br />I