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DocuSign Envelope ID:6C20BEA2-C653-4B9C-9E3D-OB977E9160BE <br /> vivint. sol a r 1800 W Ashton Blvd. <br /> Structural Group Lehi, UT W43 <br /> J.Matthew Walsh, PE Mrk M.Nelson, SE Samuel Brown,PE-Civil <br /> Director of Engineering Structural Engineering Strudwa!Engineering <br /> j4mes.waish@vivintsolar.com kirk.nelson@Wvintsolar.com sam.brown p_vrvintsolar corn <br /> Mount Spacing CalculationIN <br /> Mount Types: Uplift Shear Fasteners (Capacities based on manufacturer testing) <br /> RL-U S eedSeal 443 Ibs 238 Ibs 1 <br /> Fastener Capacity 939 Ibs 339 Ibs <br /> Controlling Capacity 443 Ibs 238 Ibs <br /> Portrait Zone 1 Zone 2 Zone 3 <br /> Uplift 33 in 31 in 34 in <br /> Shear 437 in 658 in 1316 in Capacity <br /> Manufacturer or AHJ 48 in 48 in 48 in L*SIN(6)*D <br /> Controlling Spacing 33 in 31 in 34 in <br /> Landscape Zone 1 Zone 2 Zone 3 Capacity <br /> Uplift 57 in 54 in 58 in L*0.6(D-W) <br /> Shear 750 in 1127 in 2255 in Capacity <br /> Manufacturer or AHJ 48 in 48 in 48 in L*SIN(A)*D <br /> Controlling Spacing 48 in 48 in 48 in <br /> Wind Uplift on Each Fastener <br /> Tributary Area (Atrib) Zone 1 Zone 2 Zone 3 Mount Spacing *Vertical Spacing <br /> Portrait 15 sf 10 sf 5 sf <br /> Landscape 13 sf 9 sf 4 sf <br /> Demand in Uplift Atdb*0.6(Pd-W) <br /> Portrait 443lbs 443lbs 443lbs <br /> Landscape 372lbs 395lbs 365lbs <br /> Capacity in Uplift 443lbs 443lbs 443lbs Max Utilization=1.00 <br /> Demand in Shear Atfb*SIN(A)*D <br /> Portrait 18lbs 11lbs 6lbs <br /> Landscape 15lbs 10lbs 5lbs <br /> Capacity in Shear 238 lbs 238 Ibs 238 Ibs Max Utilization=0.08 <br /> Page 4 of 4t' . Solar <br />