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Loyd W. Martin Professional Engineer, Inc. <br />9924 Universal Boulevard #224-406 Orlando, FL 32819 Tel:1.310.464.1804 <br /> Email: loydwmartin@gmail.com www.loydwmartin.com <br />Check attachment of Support to Existing Structure for Wind Uplift - Cont'd <br />Use Support connected to 2x Min. Roof Member <br />w/ (1) 5/16" x 3.5" lag screw per connection minimum. <br />Determine allowable load per 5/16" lag screw w/ 2.5" embedment into wood below <br />according to the 2018 NDS. <br />W ' = W x Cd x Ct Table 10.3.1 2018 NDS <br />where: <br />W = 266 lbs / in. of embedment per Table 12.2A <br />Cd = 1.6 per Table 2.3.2 of 2018 NDS <br />Ct = 1.0 per Table 10.3.4 of 2018 NDS <br />W ' = 266 lbs/ in. x 2.5 in. x 1.6 x 1.0 = 1,064 lbs > 416 lbs OK <br />Sht # 5 of 8 <br />Exp. 3-31-19 <br />No. C58724 <br />NITRAMW.DYO <br />REGISTEREDPROFESSIONALENGINEER <br />C <br />V <br />L <br />FOETATS <br />ALIFORNIAICIL <br />123 <br />2022- 3209 Plug It In Solar Chad Barker Date: August 09, 2022 <br />2014 N Flower St <br />09/12/22