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. , , � <br /> ,ZEP HARDWARE DESIGN CALCULATIONS - MP5&MP6 . <br /> Mountin Plane Information <br /> Roofin Material Comp Roof � <br /> Roof Slope__ _ _ 17° � <br /> ___ _ _. ..w ___ �__- _.__ _. ._ .�___. _ . _.. . . - - ----- - • - -_. -_- - ----�- -- - ---- - - _ _ --- - --- -- --- __ i <br /> Rafter S acin 24"O.C. ' <br /> Framing Type/_Direction Y-Y Rafters <br /> --- _. _ - -- --- - - - ---- - - - -,_-- -- --_._ =-- - -- -- _ _ ___-�-- -- <br /> PV System Type _ __. _ _ , __ �_ ____ _ , .,. _ e SolarCity SleekMount'"^ � <br /> - --- - - -- -- - •-- - - - -- -- <br /> Zep System Type � _ _ _ _ ZS Comp _ _ _ <br /> - - - --_ __ __ _ _ .�_ - - - ---- --- __ .._ _- <br /> Standoff Attachment Hardware � Comp Mount Type C � <br /> Spanning Vents _ _ _ No <br /> Wind Desi n Criteria <br /> Wind Design Code.__ IBC 2012 ASCE 7-10 <br /> - - _ . . --.__ _ _ ._. _--- -- - -- -- ---- <br /> _� _ <br /> Wind Design Method_, ___�, .,_ _ _ __,�__ _ _, .__ _� .._ ____Partieliy/Fully Enclosed Method <br /> - -- .. _ .. _ _ _..._ ._ <br /> Uitimate Wind Speed _ V-Ult _ 150 mph _ Fig. 1609A <br /> - -- -- - --- - - <br /> - - -- --- - - <br /> . ,.- - - - - <br /> Exposure_Category _ ._, _ __ _. __C___ __ , __ __ ._ __ _Section_26.7__ <br /> . . .. - --- _ � . __. -- --- - <br /> Roof Style _ _ __ _ Gable Roof _ Fg.so_4-u,/s/c_5n/s <br /> ._ _� -- - - --- - --- - -- - -- - - - �- - --- ___ - - - - - - - - -- <br /> Mean Roof Hei ht h 25 ft Section 26.2 <br /> Wind Pressure Calculation Coefficients <br /> Wind Pressure Exposure _ _ _ _ KZ 0.95 _ _ Table 30.3-1__ <br /> �. _ __ ___._._._ _ - - - - -... - -- - - - - <br /> Topographic Factor_, _ _ _ _ . Krt, _ _ 1.00 _ _ Section 26.8 <br /> Wind Directionality Factor _ _ ICd __ _ . _ _ _ 0.85 _ _ _ Section 26.6-1 <br /> Im ortance Factor � I NA � v <br /> Velocity Pressure qh qh = 0.00256(Kz)(Kzt)(Kd)(V^2) Equation 30.3-1 <br /> 46.3 psf <br /> Wind Pressure <br /> Ext. Pressure Coefficient U GC U -0.88 Fg.30.4-2A/B/C-5A/B <br /> Ext. Pressure Coefficient Down GC Down) 0.45 Flg.30.4-2A/B/C-5A/B <br /> Desi n Wind Pressure p= qh(GCp) E uation 30.4-1 <br /> Wind Pressure U p„ -40.5 psf <br /> Wind Pressure Down Z�.9 psf <br /> ALLOWABLE STANDOFF SPACINGS <br /> X-Direction Y-Direction <br /> Max Allowable Standoff Spacing_ _ Landscape _ _ _ 72" _ 39" _ <br /> ---- -- -- - _ _ __ ._�._ ._ _ _.. -- - - _ __ . . <br /> . - - - - - - <br /> Max Allowable�ntilever ___ _ _,_._ _ Landscape__ ._ __ ____ _24" NA __ _ <br /> Standoff Confi uration Landscape Staggered <br /> Max Standoff Tributary Area _ , _ __ _Trib, __ ,,_ : . ._ _ _ 20 sf_ <br /> - - - --- - - - - - -- - - -- <br /> PV Assembly Dead Load W-PV 3.0 psf <br /> ._ _- - - -- - -- � - - --- - -- - - - -•- --- <br /> - - - - - <br /> Net Wind_Uplift_at Standoff __ . _, _ T-actual _ _,__ . _ .. _ _ -441.Ibs � <br /> Uplift Capacity of Standoff T-allow 637 Ibs <br /> . _ _ - - - - -- - -- -- -- - <br /> - -- - - --- - - - ---__ - - --- - - - o-- - --- - - - -- - ---- - — <br /> Standoff Demand Ca aci DCR 69.2/o <br /> X-Direction Y-Direction <br /> Max Allowable Standoff Spacing _ __ Portrait__ 48" _ _ ___ 64" <br /> ----- --- -- ----__ __-- - - -- _ . __ ._ . . _ - - - - - - - - - <br /> Max Allowable Cantileyer_ __ , _ __Portrait __. _ , ---.--,- -- -- .. . 20"-_ -- -- - - -- -- „- ,-_ - --_ NA _, _ _ <br /> Standoff Confi uration Portrait Staggered <br /> Max Standoff Tributary_Area._.___ _ __ _,_Trib_ __ ,_ _ .. ___ _ _ . _ _ _ 21 sf__ _ .. <br /> - -- - - - - - - - -- -- <br /> PV Assembly Dead_Load W-PV _ 3.0 psf � <br /> - --- - _ -- - <- - - ._ - - -- -- <br /> NetaWind Uplift at Standoff_ ._ ._ _._. T-actual __ _ _ �� � _� , _, -482.Ibs � � <br /> -- - - - - _ _ . ._ -- - _. ___ <br /> Uplift Capacity of Standoff T-allow 637 Ibs <br /> --- -- •-- - - -- -. _._ _ -- - - - -- - � - - - - - - - - -- ... - - -�-- .- <br /> Standoff Demand Ca aci DCR 75.7% <br />