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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 />CONC. FLAT TILE 9.0 psf 0.6WL Zone 1 and 2e -11 psf, MIN 10 PSF <br />5/8" Ply shtg 1.9 Overhang -14.6 psf <br />Rf Frm'g 2.8 pWLdown =6.0 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 -11 -9.2 psf <br />Zone 2 0.6*3 -14.6 -12.8 psf <br />Total DL 18.2 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 2x4 RAFTERS @ 24" o.c <br />Spacing 2.00 ft Trib panel width = 6 ft <br />E 1500000 psi Fb =900*1.5*1.15 1552.5 psi <br />I 5.4 in^4 MallowWind =1110 ft-lb <br />Span1 10.00 ft MallowLL =867 ft-lb <br />Span2 10.00 ft See below for Wind Uplift loads <br />Span3 0.00 ft due to concentated loads at attachments <br />Span4 0.00 ft <br />(Distance <br />to Att. <br />Pts)a b R1 (lb) R2 (lb <br />Load <br />(psf) <br />Trib W <br />(ft) <br />Wind <br />Uplift <br />(lb) <br />Mmax <br />wind(ft- <br />lb) <br />Wind <br />Down <br />(lb) <br />P = <br />PVDL <br />(lb) <br />0.00 <br />1 0.91 0.91 9.09 185.0 18.5 11 6.0 203.5 168 185 55.5 240.5 <br />2 4.72 4.72 5.28 107.4 96.1 11 6.0 203.5 507 185 55.5 240.5 <br />3 6.55 6.55 3.45 70.2 133.3 11 6.0 203.5 460 185 55.5 240.5 <br />4 10.35 0.35 9.65 196.4 7.1 11 6.0 203.5 69 185 55.5 240.5 <br />5 12.18 2.18 7.82 159.1 44.4 11 6.0 203.5 347 185 55.5 240.5 <br />6 15.99 5.99 4.01 81.6 121.9 11 6.0 203.5 489 185 55.5 240.5 <br />16.90 <br />Span 1 Uniform DL 10.00 91.2 91.2 9.1 psf 2.0 18.2 plf 228 <br />Span 2 Uniform DL 10.00 91.2 91.2 9.1 psf 2.0 18.2 228 <br />Reactions at Span1 453.8 339.1 Negative values are uplift reactions <br />Reactions at Span2 287.6 98.3 <br />Mmaxwindup = 451 ft-lb < 1110 ft-lb OK <br />Mmaxwinddown = 1085 ft-lb < 1110 ft-lb OK <br />For DL+LL including the PV system weight point loads w = 70.4 plf P = 55.5 lb <br />Mmax =847 ft-lb < 867 ft-lb OK <br />Deflection Check <br />DDL = 5wL4/(384EI)(5*18.2*10^4)*1728 = 1.019 in = L/ 117.8 OK <br />384*1.5E6*5.4 <br />PROJECT: <br />CLIENT: <br />BY: <br />PV Panels for Christopher Cleary & Mich <br />Solar Max Renewable Energy Provider, I <br />Doug Engineering <br />1/4/2024 <br />SMX-11152 <br />P = DL+WL <br />(lb) <br />1024 W Sharon Rd - <br />201822705/28/2024