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ASCE 7-16 Design Wind Pressure - Envelope Procedure <br />Risk Category II (low risk) <br />Exposure C 1 <br />Dimensions X (ft) Y (ft) <br />51 55 <br />Mean roof Ht 11.5 ft <br />Elevation 59.982 ft above sea level <br />wind speed (V) 95 mph ok <br />Roof slope rise 5 run 12 <br />θ = 22.631 deg not flat roof <br />Kzt 1 <br />Ps30 - Fig. 28.5-1 <br />A B C D E F G H Eoh Goh <br />θ = 20-25 deg 18 2.9 13 3 -8 -10.9 -5.8 -8.7 -14.9 -12.7 <br />λ= 1.35 <br />𝜆 <br />Adj. Zone Press. A B roof C D roof E F G H Eoh Goh <br />θ = less than 15 deg 24.3 3.9 17.6 4.1 -10.8 -14.7 -7.8 -11.7 -20.1 -17.1 Ultimate (psf) <br />14.6 2.3 10.5 2.4 -6.5 -8.8 -4.7 -7.0 -12.1 -10.3 ASD (psf) <br />*roof - horizontal pressure on the roof <br />Base Shear (ASD) <br />Case A (long dir,max)9222 lbs Y-direction <br />Case B (narrow dir. max)8551 lbs X-direction <br />Vert Pressures Overhang Pressures <br />Horz Pressues Vert Pressures Overhang Pressures <br />Horz Pressues <br />5/16