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�' ® 'n� 1800 WAshton Blvd. <br /> =' 'ry' ' Lehi, UT 84043 <br /> Structural Group <br /> J. Matthew Walsh, PE Kirk M: Nelson,SE Samuel Brown,PE-Civil <br /> Director of Engineering Structural Engineering Structural Engineering <br /> james.waish@vnrintsolarcom kiricnelson@vivintsolar.com sam.brown@vivintsolar.com <br /> Mount Spacing Calculation <br /> ASCE 7-10 Simplified Procedure for Components and Cladding <br /> NDS Section 12 <br /> [CC Code Cycle 2015 <br /> Wind speed (V) 145 mph <br /> Exposure Category D <br /> Roof Slope (0) 17.0 deg \ <br /> Effective Wind Area 20 sf <br /> Least Horizontal Dimension 30.00 ft <br /> Adjustment Factor(A) 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) 0.88 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 Type 5/16 Yield Equations NDS Table 12.3.1A <br /> Diameter 5/16 in I m 665 Ibs <br /> Fasteners 1 1 s 1255lbs <br /> Embedment (Dpen) 2 1/2 in II 368 Ibs <br /> Load Duration (Cd) 1.6 III m 382 Ibs <br /> Pullout per Inch (W) 235 lb/in III s 400 Ibs <br /> 11V 345 Ibs <br /> Uplift Capacity 939.lbs DpenCdW <br /> Shear Capacity 345 Ibs Based on equations from NDS 12.3.1A <br /> Page 3 of 4vivint. ->>`� - �•,�� y <br />