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illl pool <br />diLL©engineering <br />- inc. <br />POOL ENGINEERING INC.By: R. McPherson <br />Location: Santa Ana, CA,92701-5127 Date: 3/20/2014 <br />Job# 14-0457 <br />GRAVITY LOADS: <br />Roof Dead Load (Existing): <br />4.0 p.s.f.Comp. Shingles <br />1.5 p.s.f.1/2" Ply. Sheathing <br />0.5 p.s.f.2x4 Rafters @ 32"0.c . <br />3.5 p.s.f.5/8" Gyp. Board & Ceiling Framing <br />1.5 p.s.f.Misc. <br />11 p.s.f.Existing Roof Dead Load <br />Tvpical Floor Dead Load (Existing - 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 />3.5 p.s.f.5/8" Gyp. Board & Ceiling Framing <br />1.3 p.s.f.Misc. <br />34 p.s.f.Existing Floor Dead Load <br />Roof Live Load (Existing): <br />20 p.s.f.(Table 1607.1 of C.B.C. 2013) <br />Floor Live Load (Existing - If Applicable): <br />40 p.s.f.(Table 1607.1 of C.B.C. 2013) <br />Roof Dead Load (Proposed): <br />2.9 p.s.f.PHONO SOLAR PS300P-24/T solar panels and mounting system <br />11 p.s.f.Existing Roof Dead Load <br />13.9 p.s.f.Proposed Roof Dead Load <br />Roof Live Load w/ Solar Panels (Proposed): <br />0 p.s.f.(Panels cannot support live loads) <br />Total Roof Loads: <br />Total Existing Roof Load = (DLroof+LI-roof) Arearoof <br />= 38750 lb. <br />Total Proposed Roof Load = ( Dlproposed +LL proposed) Area proposed +(DLroof + LLroof) (Arearoof - Areaproposed) <br />= 34823 lb. <br />Demand Increase = [(Proposed Roof Load- Extg. Roof Load)/Extg. Roof Load]x100 <br />= -11.28% <br />Results: NET DECREASE IN GRAVITY LOADS ==> OK <br />3/20/2014 2:47 PM <br />\\peanasv2\Pool\Projects Solar\2014\0457-14 Residential\14-0457 SOLAR PANEL CALCS.xlsx <br />Page 9 of 13 <br />©Pool Engineering, Inc. 2014