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SHEET: 5 OF 7 <br />DATE: <br />DE JOB NO.: <br />DESIGN LOADS <br />Dead Loads Uplift <br />Roof 0.6WL <br />COMP SHINGLE 4.0 psf 0.6WL Zone 1 and 2e -14.9 psf, MIN 10 PSF <br />5/8" Ply shtg 1.9 Overhang -19.9 psf <br />Rf Frm'g 2.8 pWLdown = 8.3 psf 10 psf, MIN 10 PSF <br />Misc. 1.5 Uplift 0.6DL+0.6WL <br />(N) PV System 3.0 Zone 1 0.6*3 -14.9 -13.1 psf <br />Zone 2 0.6*3 -19.9 -18.1 psf <br />Total DL 13.2 psf Downward DL+0.6WL <br />LL 20.0 psf PDL+WL = 13.0 psf <br />SNOW 0.0 psf <br />Rafter Check <br />Existing 2x6 RAFTERS @ 24" o.c <br />Spacing 2.00 ft Trib panel width = 6 ft <br />E 1500000 psi Fb = 900*1.3*1.15 1345.5 psi <br />I 20.8 in^4 MallowWind = 1356 ft-lb <br />Span1 7.16 ft MallowLL = 1060 ft-lb <br />Span2 7.16 ft See below for Wind Uplift loads <br />Span3 0.00 ft due to concentated loads at attachments <br />Span4 0.00 ft <br />d <br />(Distance <br />to Att. a b R 1 (lb) R 2 (lb <br />Load <br />(psf) <br />Trib W <br />(ft) <br />P = <br />Wind <br />Uplift <br />Mmax <br />wind(ft- <br />lb) <br />P = <br />Wind <br />Down <br />P = <br />PVDL <br />(lb) <br />1.00 <br />1 1.80 1.80 5.36 192.7 64.7 14.9 6.0 257.4 347 172.75 51.8 224.6 <br />2 5.18 5.18 1.98 71.2 186.2 14.9 6.0 257.4 369 172.75 51.8 224.6 <br />3 6.97 6.97 0.19 6.8 250.6 14.9 6.0 257.4 48 172.75 51.8 224.6 <br />4 10.35 3.19 3.97 142.7 114.7 14.9 6.0 257.4 455 172.75 51.8 224.6 <br />11.25 <br />Span 1 Uniform DL 7.16 43.8 43.8 6.1 psf 2.0 12.2 plf 78 <br />Span 2 Uniform DL 7.16 43.8 43.8 6.1 psf 2.0 12.2 78 <br />Reactions at Span1 314.5 545.3 Negative values are uplift reactions <br />Reactions at Span2 186.5 158.5 <br />Mmaxwindup =359 ft-lb < 1356 ft-lb OK <br />Mmaxwinddown =580 ft-lb < 1356 ft-lb OK <br />For DL+LL including the PV system weight point loads w = 60.4 plf P = 51.8 lb <br />Mmax =490 ft-lb < 1060 ft-lb OK <br />Deflection Check <br />DDL = 5wL4/(384EI) (5*13.2*7.16^4)*1728 =0.05 in = L/ 1717.2 OK <br />384*1.5E6*20.8 <br />PROJECT: <br />CLIENT: <br />BY: <br />PV Panels for Maia Huntington <br />SunLux <br />Doug Engineering <br />5/2/2023 <br />SLE-4883 <br />P = DL+WL <br />(lb) <br />1621 W Avalon <br />Ave08/07/23