Laserfiche WebLink
>10* Roof Slope/ Residential Applications <br /> C.H.I. ASCE 7-05 ASCE 7-10 Pressure(PSF)by Door Width <br /> Wind Zone Exp 8 MPH Exp B MPH 8'x 7' 9'x 7' 10'x 7' 12'x 7' 14'x 7' 15'x 7' 16'x 7' <br /> Zone 1 90 116 12.9/-14.7 12.8/-14.5 12.7/44.3 12.5/-141 12.4/-13.9 12.3/-13.8 12.3/-13.7 <br /> =9ie 2 1_2 <br /> Zone 3 110 142 19.3/-21.9 19.1/-21.6 19.0/-21.4 18.7/-21.0 18.5/-20.7 18.4/-20.6 18.3/-20.4 <br /> i4—,3 77, <br /> one <br /> Zone 5 130 168 27.0/-30.6 26.7/-30.2 26.5/-29.9 26.2/-29.3 25.9/-28.9 25.7/-28.7 25.6/-28.5 <br /> Zone 7 1SO 194 35.9/-40.8 35.6/40.2 35.3/-39.8 34.8/-39.1 34.4/-38.5 34.3/-33.2 34.1/-38.0 <br /> Zone 9� 166 214 43.9/-49.8 43.6/-49.3 43.3/-48.7 42.7/-47.8 42.2/-47.1 42.0/-46.8 41.8/-46.6 <br /> -77 <br /> 'the higher Exp B values apply to doors greater than SO'wide <br /> :510* Roof Slope/Commercial Applications <br /> C.H.I. ASCE 7-05 ASCE 7-10 Pressure(PSF)by Door Width <br /> Wind Zone ixp BMPH Exp B IAPH 8'X 8' 91 X 81 10'X 8' 12'x 8' 14'x 8' 15'X 8' 16,X 81 <br /> Zone 1 90 ills 11.7/43.3 11.6/-13.1 11.6/-13.0 11.4/-12.7 11.3/42.6 11.2/-12.5 11,2/-12.4 <br /> 7— 77143%=1t6Q——7 <br /> L F <br /> L <br /> Zone 3 110 142 17.5/-19.9 17.4/-19.6 17.3/-19.4 17.0/-19.0 16.8/-18.8 15.7/-18.6 16.7/-18.5 <br /> 7. <br /> Zone 5 130 168 24.5/-27.7 24.3/-27.4 24.1/-27.1 23.8/-26.6 23.5/-26.2 23.4/-26.0 23.3/-25.9 <br /> Zone 7 150 194 32.6/-36.9 32.3/-36.4 32.1/-36.0 31.7/-35.4 31.3/-34.9 31.1/-34.7 31.0/-34.5 <br /> 2—A <br /> Zone 9 166 214 39.8/-45,0 39.4/-44.4 39.1/-44.0 38.6/-43.2 38.2/-42.5 38.0/-42.3 37.8/-42.0 <br /> General Notes <br /> -Exp B values are to nearest miles-per-hour(MPH) <br /> -Pressure values are pounds-per-square-foot(PSF) Mean Roof Height (MRH)/ Exposures(Exp) <br /> -Positive pressure signifies pressure acting inward to the building MRH Exp B Exp C Exp D <br /> -Negative pressure signifies pressure acting outward from the building is, 100% 90% 82% <br /> -Enclosed structure classification with 2'of the.door In the end zone 7_16-0— 7 <br /> 8 <br /> L-L-Z <br /> -60'x 40'building size(larger buildings may require higher negative PSF) 25' 100% 86% 78% <br /> 7_77 <br /> 30'Mean Roof Height(MRH),see chart for differing MRH and Exp values <br /> -Greater door heights require lower PSF values to meetsameMPH 35' 97% 83% 76% <br /> ASCE 7-OS notes 45' 94% 80% 74% <br /> -Importance Factor of 1.00 <br /> 7 <br /> -Utilizes nominal basic wind speeds 55, 91% 79% 73% <br /> 7, <br /> ASCE 7-10.notes These percentages reduce Exp 8 wind speeds to approximate MPH for mean roof <br /> -Risk Catergory If heights shown in MRH column. <br /> -Utilizes ultimate wind speeds <br /> Page 2 of 6 <br />