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DocuSign Envelope ID:6C20BEA2-C653-4B9C-9E3D-OB977E916OBE <br /> VIVIn' ue-dar <br /> ts <br /> 1800 W Ashton Blvd. <br /> Structural Group Lehi, UT a <br /> 4043 <br /> J.Matthew Walsh, PE Kirk M. Nelson, SE Samuel Brown,PE- Civil <br /> QftectorofEngineerfng Strixturef Engineering Slructuref€Vneering <br /> ibmes.waistp@yMnmoiar.com kirknelson@vivintsolar.com sam brown c@vivinzsolar com <br /> Mount Spacing Calculation <br /> ASCE 7-10 Simplified Procedure for Components and Cladding <br /> NDS Section 12 <br /> Site-Specific Parameters <br /> ICC Code Cycle 2015 <br /> Wind speed (V) 145 mph <br /> Exposure Category D <br /> Roof Slope (A) 23.0 deg <br /> Effective Wind Area 20 sf <br /> Least Horizontal Dimension 30.00 ft <br /> Adjustment Factor(A) 1.61 <br /> Topographic(Kt) 1 <br /> Panel Dead Load (Pd) 3 psf <br /> Ground Snow Load 0 psf <br /> Flat Roof Snow Load (pf) 0 psf ASCE 7-10 Eq. 7.3-1 <br /> Slope Factor(CS) 0.78 ASCE 7-10 Fig. 7-2b- <br /> Panel Snow Load 0 psf Pfc. <br /> Total Dead Load (D) 3 psf Panel Dead Load + Roof Snow Load <br /> Portrait Landscape <br /> Vertical Spacing (L) 67 in 39 in Based on length of the panel <br /> Wind Pressure Zone 1 Zone 2 Zone 3 <br /> Lookup Pressure (Pnet30) 31 psf 49 psf 89 psf ASCE 7-10 Fig. 30.5-1 <br /> Uplift Pressure W 51 psf 79,psf 144 psf A*Kzt*Pnet30 <br /> Fastener Capacity Calculation <br /> Fastener Type 5/16 Yield Equations NDS Table 12.3.1A <br /> Diameter 5/16 in I_m 654 Ibs <br /> Fasteners 1 1 s 1235lbs <br /> Embedment (Dpen) 2 1/2 in II 363 Ibs <br /> Load Duration (Cd) 1.6 III m 376 Ibs <br /> Pullout per Inch (W) 235 lb/in III_s 393 Ibs <br /> IV 339 Ibs <br /> Uplift Capacity 939 Ibs DpenCdW <br /> Shear Capacity 339 Ibs Based on equations from NDS 12.3.1A <br /> Page 3 of 4 mmn <br /> r , S' ; <br />