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Normnu <br />Scheel <br />Structural <br />Engineer <br />5022 Sunrisc Blvd. <br />Fair Oats, CA 95624 <br />(916)536-9595 <br />(916) 536-0260 (faa) <br />1989.2013 <br />2/}ran. nfercellence <br />Norman Scheel, S.E. <br />TEED AP nMC <br />tEED AP tlnnt4 <br />rcltow -SEAOC <br />Fellow ASCE <br />E-mail: " mra:nsicsom <br />Rob Coon <br />Gmmjl Maws" <br />E•mailmbewna swcom <br />Steve Smith P.F. <br />Pmjml Manager <br />EmailiinvMMitha nVLrnm <br />Steven Cooksey <br />CAD Supervisor <br />Email strvrrancar corn <br />.Inekie Winslow <br />Ofnre?,I of a <br />F.-nnil pcl.i'�. n"r corn <br />Tuesday, December 31, 2013 <br />SnapNrack <br />775 Ficro Lane, Suite 200 <br />San Luis Obispo, CA 93401 <br />"Series 100 Roof Mount" Cover Letter <br />To Whom It Mny Concern, <br />Snap <br />rack - <br />We have performed calculations for the 100 series roof mount PV system based <br />on the infomtation provided by SnapNrack. Included with this letter are the <br />report and calculations. We did the calculations in accordance with the 2012 <br />IBC, ASCE 7.10, 2012 NDS, and guidelines stated in the Solar America Board <br />for Codes and Standards. <br />Some of the components in the SnapNrack test data were used to determine the <br />capacity and section properties of materials. We collected the test data using the <br />procedures outlined In the 2012 IBC Chapter 17. <br />We included the following types of load combinations and building parameters <br />into our calculations: <br />a ASCE 7-10 wind speeds from 110 mph to 190 for B and C exposure <br />categories <br />• ASCE 7-10 Seismic Design Category E <br />• ASCE 7-10 Snow Loads up to 120 psf ground snow <br />• Buildings with mean roof heights up to 60 foot tilt angles / roof pitches <br />from 0 degrees to 60 degrees. <br />In our opinion, the mounting system outlined by SnapNrack's Series 100 PV <br />Mounting System Code Compliant Installation Manual 2012 is acceptable and <br />meets the loading requirements as slated above. See the report and calculations <br />included with this letter for more information. <br />If there are any further questions, please contact Nonn Scheel. <br />Norman Scheel PE, SE <br />LEED-AP BD•C, LEED•AP Homo <br />Fclluw SEAOC <br />Fclluw A.S.C.E. <br />