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Design Criteria <br />Roof Dead Loads <br />PVC Membrane <br />4" Insullation <br />1-1/2" x 18 GA Metal Deck <br />Misc. <br />W14x22 <br />W24x76 <br />Solar Dead Loads <br />Solar Panels (Max Array Load) <br />Ballast Weight (As Occurs per Plan View) <br />On Module Base Spacing "S" <br />Between Module Base Spacing "L" <br />Live Loads <br />Tributary Area = LL = Metal Deck <br />Tributary Area = LL = W14x22 <br />Tributary Area = LL = W24x76 <br />Wind Load <br />Downward Wind Load (Purlins & Girder) <br />Medtronics PV Project - Feasibility Study - Roof 1 DATE: <br />4642 Rockland Place La Canada <br />Flintridge, CA 91011 <br />CHECKED BY: NS <br />PAGE NO. 4 <br />NS STRUCTURAL ENGINEERING, INC MADE BY: JL <br />2.0 psf <br />3.30 psf <br />Before Solar <br />4.05 ft <br />3.44 ft <br />6.0 psf <br />2.9 psf <br />2.5 psf <br />13.9 psf <br />16.4 psf <br />11.4 psf <br />0.5 psf <br />2.5 psf <br />32.60 lbs <br />* No Live load is applied underneath modules due to being less than 24" from the roof surface. Live load is only applied <br />at walkway locations and is averaged over solar array area. <br />9.6 psf <br />-20.0 psf <br />280.5 ft²18.4 psf <br />1323.4 ft²12.0 psf <br />1851 E Deere Ave - 101118504 & <br />20182282 <br />4/11/2024