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DocAign Envelope ID:04ABE318-282A-4C4C-8640-FC4EE5C83747 <br /> 1 r. u°�" 1800 W Ashton Blvd. <br /> 1 °! ' `� s o ll �°'"' Lehi, UT 840V3- <br /> Structural Group <br /> J.Mafthew Walsh, PE IGrk M. Nelson, SE Samuel Brown, PE- Civil <br /> Mector of Engineering -Structural Engineering Structural Engineering <br /> james.walst)@vivintsolar.com kiricnelson@vivintsolar.com sam.brown(d)vMnrsolancom <br /> Mount Spacing Calculation <br /> ASCE 7-10 Simplified Procedure for Components and Cladding <br /> NDS Section 12 <br /> Site�Specifi„c.Pa�ameter�s <br /> ICC Code Cycle 2015 <br /> Wind speed (V) 145 mph <br /> Exposure Category D <br /> Roof Slope (8) 24.0 deg <br /> Effective Wind Area 20 sf <br /> Least Horizontal Dimension 0.00 ft <br /> Adjustment Factor 1.47 <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) 0.77 ASCE 7-10 Fig. 7-2b <br /> Panel Snow Load 0 psf PfCS <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 46 psf 72 psf 131 psf A*Kzt*Pnet30 <br /> Fastener Capacity Calculation. <br /> Fastener Type 5/16 Yield E uations NDS Table 12.3.1A <br /> Diameter 5/16 in I_m 653 Ibs <br /> Fasteners 1 1_s 1232lbs <br /> Embedment(Dpen) 2 1/2 in II 362 Ibs <br /> Load Duration (Cd) 1.6 III m 375 Ibs <br /> Pullout per Inch (W) 235 lb/in III_s 392 Ibs <br /> IV 338 Ibs <br /> Uplift Capacity 939 Ibs . DpenCdW <br /> Shear Capacity 338 Ibs Based on equations from NDS 12.3.1A <br /> o � <br /> Page 3 of 4 <br />