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, � <br /> ZEP HARDWARE DESIGN CALCULATIONS - MP3&MP4__ .. <br /> Mountin Plane Information <br /> Roofin Material Comp Roof ' <br /> Roof Slope --_- --- __-- -_-- _ - Zi° <br /> - - - - -- -- -_-_.___ _____ __,___----- ----._ _ _- - ---- --. .�._.__._�-.- ____ .�----,--- <br /> Rafter S acin 24"O.C. � ' <br /> Freming Type/Direction _ _ __ _ _ __ __ ._ ,_ .__ Y-Y Rafters <br /> _ ----- --�-- -- <br /> ------ -- -- - -- -- - ----- ---- - -- •------ -- - - -_�_ <br /> "--`-- SolarCi SleekMountT"' ` <br /> PV System TYPe___ ------------ ---- - -�--- - - -- ----__.. ___------ty---- -- - --- - --------- -�-- --- ---- - ---- - <br /> Zep System_Type _. _ __.___�_ _ __ ZS Comp � <br /> _-_.- __ --_ - - --- --- -- -- - -- - ---- - --- --- ---� __ __ ____._-- - -- - <br /> Standoff Attachment Hardware Comp Mount Tvpe C <br /> Spanning Vents ,_. __ <br /> ._ ---_-- _.____-_ --- --. _ ._ ---- �- ---_.._ _. . _.__ �.. ___°--____ .,._ _- ---- ----- ------ - --- <br /> Wind Desi n Criteria <br /> Wind Design Code IBC 2012 ASCE 7-10 ___ __ __ _ __ _ __ _ <br /> --- --- - - - ----- --- -- --- ---;- --- -- <br /> Wind Design Method_y_______ _. __ _ ____ _ _ .___..___ _ �_ __y_� _Partially/Fully Enclosed Method _. <br /> -_ _ _._..-- - --- -- -- -- - <br /> Ultimate Wind Speed_._ ,_ _ _ _ ____V�UIt _ _ _ __ _ __ _ ,_150 mph __ _ Fig. 1609A_ <br /> Exposure Catego._ry--- - --- ------ - -.- -- _- --- -- -____,_._---- --. � - -- �- --- - --- -- - Section 26,7, - <br /> -- ----- <br /> Roof Style__ _ __ __. .__ _ Gable Roof Flg.30.4-2A/B/GSA/B <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 /> - - --- _ ._---- - - - .<_ ..__ __---- ---- - ---- ---- -- - --- �.__ ._ _.__e______..__�--.- <br /> Wind Directionality Factor__ 0.85 Sedion 26.6-1 <br /> ___ _ . _ . _ a ......_._. . _ .� � ---- � - - -d---- -- ---�_ .�. _NA - --• - - - - -__ _------ ---------- --- <br /> Im rtance Factor I <br /> Velocity Pressure qh qh = 0.00256(Kz)(Kzt)(Kd)(V^2) Equation 30.3-i <br /> 46.3 psf <br /> Wind Pressure <br /> Ext. Pressure Coefficient U GC U -0.88 Flg.30.4-2A/B/GSA/B <br /> Ext. Pressure Coefficient Down GC Down 0.45 , Flg.30.4-2A/B/GSA/B <br /> Desi n Wind Pressure p=qh(GCp) E uation 30.4-1 <br /> Wind Pressure U „ -40.5 psf <br /> Wind Pressure Down 20•9 P� <br /> ALLOWABLE STANDOFF SPACINGS _ � _ _ _ _ _ ' <br /> X-Direction Y-Direction <br /> Max Allowable Standoff Spacing_ __ _Landscape __ _ _ _ _ 7Z° _ ___ 39�� _.__ _ <br /> _- - - - -- - -- - -- - -_ . <br /> Max_Allowable Cantileyer ---._.- - -_ - --La_ndscape._._ _ ..-•-.--- --- -- �. -.24��- --___.� . _ - -- � ,__ �--_-- -NA-�._.__ <br /> Standoff Confi uration Landsca e Staggered <br /> Max Standoff.Tributary Area _--.--___.� _____�Trib . _ _ -_._ -_--- --. -_-__ .,20.sf_- -_---..___ <br /> -- - - -......._ - -------- - -�- -- <br /> PV Assembly Dead Load _ -- _.. ._ _ _ W�P�_. __- --- ---.. _ _._. ._ .3.0 psf <br /> - -- - _ _ ---- - ------ -�-_ --- -- - <br /> Net_Wind_Uplift at Standoff..__ ,__,.,_.___ _ T-actual . _ _ __ ___ __ _ __._. ,��?Ibs _ <br /> - _ -- ---- - __ _� _ _ _ _ a . __ <br /> Uplift Capacity of Standoff _ __ _ „ .T-allow __ _ 637 Ibs <br /> - -- ---- --- _ _ _ ---- -�..-- ---- - -_ _ . . .- - ---. �_ __ ___ <br /> Standoff Demand Ca ac' DCR 69.3% <br /> X-Direction Y-Direction <br /> Max Aliowable Standoff Spacing�__. . .____Portrait _ - - --- _._�.. _�_---- ---�-.-_48" _.-..- _ - �_ - --.- _- - _ __���__ _ _ <br /> Max Ailowable Cantilever._---._-- ----, ----Portrait � _ -- _ --,--..� :__ _�._._ _,..��. ,?���----.�_�... . _ _._ _ _��_ .._. .- -_ NA-_ �_ . <br /> Standoff Confi uration Portrait Staggered <br /> MaxStandoffTributaryArea_-_- -__ .�- -- -_Trib - ----- --- -.----- .-- -----_-_21sf __ _ ___.__ <br /> _ _ ,__ _ __�__�___�..---- <br /> PV Assembiy_Dead Load - _ -_--_ -_- -- _ W-P� 3.0 psF--, --` <br /> ____..._ ___ ._ ._ __. ._. _- - - -�-- -- -- - -,-- ---. _ _r____ �___ <br /> _ ._.._. <br /> Net Wind Uplift at_S_tando_ff_,__ _,_`_ ____ T-actual___ _ __ __ _ _�___ __ __.-483 Ibs„___ ,._.__ ___ _ __ <br /> Uplift Capac�y!of Standoff T-allow _ 637 Ibs _ _ _ _ _. _ _ , 6 <br /> -- - _. _. _- --___ -- ----- - -- --- ---- - - - -- -- -� -o - -. .. <br /> Standoff Demand Ca aci DCR ' 75.8/o <br />