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SolarMount Unfrac Code-Compl-lani_Instrillation Moniial 1:UNIRAC <br />Step 3: Determine RoofZone (continued) <br />Using RoofZone Dimeilsion Length, a, determ ine the roof zone <br />locations according to your roof type, gable, hip or monoslope. <br />Determine in wlijch roof zone your pv system is located, Zone <br />1, 2, or 3 according to Figure 2. <br />A <br />a2 <br />ire 2. Enclosed buildings, wan and roofs <br />t Roof Hip Roof (7° < 0 5 27°) U + in-:£LImlk <br />,-2=E>"- <br />1\ <br />e Roof (7° < 8 5 45°li#067- <br />- Interior Zoncs End Zones 'CUillel-LulleS <br />Roofs - Zone I /Walls - Zone 4 Roofs - Zone 2/Walls - Zone 5 Roofs - Zone 3 <br />Souice: ASCUS[] 7-05, M„,imurn Dcaig„ Luad. Eu, Bu,!J,-i,p ui,J Odic, Sliu:Luic«h®Le, 4 2.41. <br />Step 4: Determine NetDesign WindPressule, pnetso (ps/9 <br />1 Using the Ofective Wind Area (Step 2), RoofZone Location <br />-(St@0 3)75-nd liasic Wznd Speed (Step 1.), 1(,ok up the <br />appropriate Net Design Wind Pressure in Table 2, page 6. Use <br />the l.*ective Wind Area value in the table which is smaller than <br />the vallie calculated in Step 2. [fthe installation is located on a <br />- roof.oved=naruge-Table-By-page 7. <br />Both downforce and uplift pressures must be considered <br />in overall design«Refer to Section II, Step 1 for applying <br />- downforce.and-wplift pressures. Positive values are acting <br />toward the surface. Negative values are acting away from the <br />surface. <br />Page <br />5 <br />0