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. � � . <br /> , . . <br /> `ZEP HARDWARE_DESIGN CALCULATIONS-MP3 . � . _ _ _ __ . �_ _ _ _ _ _ _ __ _� � � <br /> Mountin Plane Information <br /> Roofin Material Comp Roof !, <br /> Roof Slope igo <br /> ------- - --_�__.___�._._.___.._�__.-------�..�._�,._.__.__. .__....__..�_.a______.__.,_...a ._.._'_.w._._._�.....__.. T__.�___m. _- --- -�.__.__� <br /> Rafter S acin 24"O.C. <br /> Framin T_a e/Direction Y-Y Rafters <br /> ___ __.-_---- <br /> - - -- -- ---_,..___,.._.__ --- -----._._ �___ ___.. _��-------- ------�----------------__-___ --___-_ <br /> PVSystemTYP_e_.�---_--__-- _.----. _.._�.____..._.__ __ ____ ___----SolarCitySleekMount'"" -____-_--w_ _�_,V __ _ __�._____ <br /> Zep System Type_� _v._ -- ZS Comp _^�__-- <br /> �. n_...__--- ---_�____.. _.___..__�._____.______. _________- ---__.___�_.,..__. _ __�_�_,�_�___s___ <br /> Standoff Attachment Hardware Com�Mount Tvoe C <br /> Spanning Vents_-- -______..__._N0 --------------.--- -- -- --- <br /> Wind Desi n Criteria <br /> Wind Design Code IBC 2012 ASCE 7-10 <br /> Wind Design_Method _,__`__� �._ ^ � _. _ �ar _ Partially/Fully Enclosed Method^ �_``T_� -:___.�.e__,__� <br /> Ultimate Wmd Speed___ _. ___�_. ---�V-Ult _0 _ �P_-�- --- _-150 mph ___.__--_-J-T_---_ _�Fig. 1609A_ _ <br /> --- _ ._ _T _ _ � __,___ <br /> Exposure Category_-- --- --------_--- _-- --------- -- ---- -__,_ .»----__ �__�____._.____._--_ -----v._,.._�.__Section 26,7___ <br /> Roof Style____� Gable Roof Fg.30.4-2A/B/GSA/B <br /> _�.__-- -------- ---------__ _�__�___ ___._4_ _______.—�---_ _��,_�..._.__ _��_�____...�_ ____,,....___. .-- <br /> Mean Roof Hei ht h 15 ft Section 26.2 <br /> Wind Pressure Calculation Coefficients <br /> Wind Pressure Exposure�_�_ � ___ __KZ 0.85 Table 30.3-1 <br /> _�___ _.__._�__.___.____y_ _.....__�_----__._____ __---- --__.___._._.___ __., ._____�. <br /> Topographic Factor.,___..__�___. �.�_ �_�.__ Krt.....�_ .__.______._.-- �---_____. _._.._1.00 __.___.�__ Y___.�_ ._....- ---Section 26,8 _ <br /> VVind Directionality Factor_� __ _ ___ __ 0.85 Section 26.6-1 <br /> � - - � � - ----- -- - --------w.__-- ------------------- ----- - ----____---- ----- - <br /> Im ortance Factor I NA <br /> Velocity Pressure qh qh= 0.00256(Kz)(Kzt)(Kd)(V^2) Equation 30.3-1 <br /> 41.6 psf <br /> Wind Pressure <br /> Ext. Pressure Coefficient U GC Up -0.88 Flg.30.4-2A/B/C-SA/B <br /> Ext. Pressure Coefficient Down GC Down 0.45 Fig.30.4-2A/B/GSA/B <br /> Desi n Wind Pressure p= qh(GCp) E uation 30.4-1 <br /> Wind Pressure U „ -36.4 psf <br /> Wind Pressure Down 18.8 psf <br /> - - - - - - - ---- - - -- - - - - <br /> �ALLOWABLE STANDOFF SPACINGS _ _ _ �� <br /> - --- - - -- - - - - - - -- - - <br /> X-Direction Y-Direction <br /> MaxAllowableStandoffSpacing__ _____ Landscape_ _ _�_�_ _ 72" _ __ _v __ _ 39" _�_ <br /> _.__-----__.��__a____e��. _-- _-.- -------- _____-----____ __ __ <br /> Max Allowabl_e Cantileyer_�__�._.__ _ �_�ndscape-- ---�__r_ __�____�__ ..._24�� �____.__ _ _ <br /> Standoff Confi uration Landscape Staggered <br /> - - ---_._..._- ----NA_ __ <br /> Max,Stando_ff_TributaryArea.`...___._.___. e__Trib__�_�_._ _�_�._ ___--- _.__ _�_. 20sf_�_�_-- ------ ___..�----, __.�a_�__�_� <br /> ,.. _ <br /> PV Assembly Dead Load___._. �. _ ___ W-PV ---—�___ _ - --- -__.�.._ 3.0 psf „__..�----___. ____--------______�__� <br /> ------ - - -- � .__.___ . <br /> Net Wind Uplift at Standoff-_--� - _- _-_, T-actual__- ---.-- � ---___ �_�.__,393 Ibs __m_�__� _ ._._--..v---�__--,-__---,--� <br /> Uplift Capacity_of Sta`ndoff ____...�..�.-- ---T-allow _-------•-------_�_____�___....637 Ibs __..____ _____...__...___.----______�..__.--- <br /> Standoff Demand Ca ac' DCR 61.7% <br /> X-Direction Y-Direction <br /> Max Allowable Standoff Spacing�___ __ Portrait 48" ___64" v__� <br /> Max Ailowable Cantilever__,.__.___�_� .__Portrait__���-- _-_d__, _y__�_,_� 20"'�Y-�-�_6- _-^�-- -'_- - NA-_-- <br /> Standoff Confi uration Portrait Staggered <br /> Mex Standoff Tributa_ry Area` _.,_�_�__�_ Trib 21 sf <br /> ----- ---�___.__._--�----_._.__. _, ---s�___e_..____._______.�.....�___ _._�_�___.__...._.-- <br /> PV As�sembly Dead Load___ __�..__._ _. W-PV _ ._..� __._- ---..� .. � 3.0 psf __r_____ ._ ___.__, __-- -___4 _- -- <br /> Net Wind Uplift_at Standoff____.�_, ,__T-actual--, -,-�---_-- --_____ v_�430 Ibs�_-e---_--_ -_--�- -�--. _�__ _ <br /> Uplift Cepacity of Standoff -------- ---T-allow-,--- T_=. _ -- -^--.T 637 1bs -�-- --- ------___- - --- _. _.._.___ -- <br /> Standoff Demand Ca aci DCR 67.5%' _ <br />