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SHEET: 6 OF 7 <br />DATE: <br />DE JOB NO.: <br />CHECK SCREW ATTACHMENTS FOR WIND UPLIFT <br />Pwuplift = 272 lb 5/16" Lag with min 2.5" penetration for each attachment <br />Table 12.2A - NDS - Lag Screw Withdrawal Values <br />For 5/16" Lag into .5G wood 266 lb <br />Allowable wind load = 1.6*2.5*266 1064 lb > 272 lb OK <br />CHECK SCREW ATTACHMENTS FOR SHEAR DUE TO SEISMIC Fp <br />Fp = 51.95 lb <br />Roof slope/module tilt 22 deg <br />Shear = Fp*cos(22 ) = 48.2 lb Fp sin(ang) <br />Tension = Fp*sin(22 ) = 19.5 lb <br />Fp cos(ang) <br />Table 11K - NDS Z =190 lb <br />CD =1.6 ` <br />Z' = Z*CD =304 lb >48.17 lb OK Withdrawal capacity W' = 1064 lb <br />Interaction Equation ft/Ft+fv/Fv 0.274 +0.158 = 0.432 < 1 OK <br />RAIL SPAN CHECK <br />Everest Railing Check <br />Load for half a panel = 2.7' <br />W = 57.78 plf <br />Per the Everest Engineering for 110 mph, 0 psf snow, and 22 deg roof slope, the max span <br />for Crossrail44-X is 80" for Array Interior Panels and 57" for Array Array Edge panels <br />Use Crossrail44-X PV Rails with a spacing of 72" o.c. max for attachment points, typ. <br />PROJECT: <br />CLIENT: <br />BY: <br />PV Panels for Jeanne Thai <br />Solar Max Renewable Energy Provider, Inc. <br />Doug Engineering <br />5/23/2023 <br />SMX-10613 <br />760 W Aster Pl - <br />2018031708/09/23