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336 12.11 4,070 <br />0 0.00 0 <br />182 5.00 910 <br />338 8.50 2,873 <br />Net Weight of Existing Building Elements (Wexist)7,853 <br />Check % Increase in Weight: PV System / Ex. Building Elements <br />% increase of Pcr of Lateral Force Reisiting System Wpv / Wexist 5.0% <br />Increase in Seismic Shear Load <10%: OK <br />Note: Seismic base shear is directly proportional to roof weight. Pcr = critical buckling load <br />DOWNWARD <br />Presume loading directly over member. <br />Combined Dead and Wind Pressure Downward Loading <br />Rafter span <br />PV <br />Module <br />Row <br />Point load <br />loc's from <br />Left <br />support <br />Module <br />Support <br />Point Load <br />Comment Module <br />Orientation <br />ft from left lb <br />1 1.67 0 Support placed on adjoining rafter Landscape <br />1 5.39 70 Landscape <br />Exterior Walls (top half) <br />Existing Roof <br />Insulation, MEP, Ceiling <br />Interior Walls (top half) <br />Array AR-1 iRooFATM Copyright © 2020 Richard Pantel. All Rights Reserved.7 of 13 <br />2341 S Park Dr - <br />10-26-231/22/2024