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11. pool POOL ENGINEERING INC.By: R. McPherson <br />4:61=E-engineering Location: Santa Ana, CA,92707-2824 Date: 12/2/2013 <br />----25,LJob#13-2502 _ __. <br />GRAVITY_LOADS: <br />Roof Dead Load (Existing): <br />4.0 p.s.f.Comp. Shingles <br />1.5 p.si 1/2" Ply. Sheathing <br />1.0 p.s.f.2x6 Rafters @ 24"0.c <br />4.0 p.si 5/8" Gyp. Board & Ceiling Framing <br />1.5 p.s.f. _ Misc. <br />12 p.s.f.Existing Roof Dead Load <br />Tvpical Floor Dead Load (Existir,2 - If Applicable): <br />7.5 p.s.f.Max. Floor Finish Weight <br />3.3 p.s.f.1 1/8" Subfloor Sheathing <br />3.4 p.s.f.2x Joists @ 16" o.c. <br />15.0 p.s.f.2x Partitions (finished) <br />4.0 p.s.f.5/8" Gyp. Board & Ceiling Framing <br />1.8 p.s.f.Misc. <br />35 p.s.f.Existing Floor Dead Load <br />Roof Uve Load (Existing): <br />20 p.s.f.(Table 1607.1 of C.B.C. 2010) <br />Floor Uve Load (Existing - If Applicable): <br />40 p.s.f.(Table 1607.1 of C.B.C. 2010) <br />Roof Dead Load (Proposed): <br />2.8 p.s.f.SUNPOWER SPR-327-NE solar panels and mounting system <br />12 p.s.f. _Existing Roof Dead Load <br />14.8 p.s.f.Proposed Roof Dead Load <br />Roof Uve Load w/ Solar Panels (Proposed): <br />0 p.s.f.(Panels cannot support live loads) <br />Total Roof Loads: <br />Total Existing Roof Load = (0400#LLoof) Are@roof <br />= 53600 lb. <br />Total Proposed Roof Load = (Dl.proposed +LLproposed) Areaproposed + (DLroof + LLroof) (Arearoof - Areaproposed) <br />= 48176 lb. <br />Demand Increase = [(Proposed Roof Load- Extg. Roof Load)/Extg. Roof Loadlx100 <br />= -11.26% <br />Results: NET DECREASE IN GRAVITY LOADS ==> OK <br />12/U2013 4:22 PM <br />\\peanaw2\Pool\Projects\2013\2502-13 Solar Panel - Residential\13-2502 SOLAR PANEL CALCS TO HOUSE.xlsx <br />Page 9 of 13 <br />©Pool Engineering, Inc. 2013