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ESR-2528 Page 6 of 19 <br />APPENDIX A (Continued) <br />DESIGN CONSIDERATIONS FOR HIGH WIND APPLICATIONS <br />Under The 2015 IBC and IRC and the 2012 IBC and IRC (ASCE 7-10) <br />2 θ θ <br />2 θ θ <br />Exposure B Ultimate Design Wind Speed (mph) <br />Mean Roof Height 110 120 130 140 150 160 170 180 190 <br />0-15 11.2 13.3 15.6 18.1 20.8 23.7 26.8 30.0 33.4 <br />20 11.2 13.3 15.6 18.1 20.8 23.7 26.8 30.0 33.4 <br />25 11.2 13.3 15.6 18.1 20.8 23.7 26.8 30.0 33.4 <br />30 11.2 13.3 15.6 18.1 20.8 23.7 26.8 30.0 33.4 <br />35 11.7 13.9 16.3 18.9 21.7 24.7 27.9 31.3 34.9 <br />40 12.2 14.5 17.0 19.7 22.6 25.7 29.1 32.6 36.3 <br />45 12.5 14.9 17.4 20.2 23.2 26.4 29.8 33.4 37.2 <br />50 12.9 15.4 18.1 21.0 24.1 27.4 31.0 34.7 38.7 <br />55 13.3 15.8 18.6 21.5 24.7 28.1 31.7 35.6 39.6 <br />60 13.6 16.2 19.0 22.0 25.3 28.8 32.5 36.4 40.6 <br />Exposure C Ultimate Design Wind Speed (mph) <br />Mean Roof Height 110 120 130 140 150 160 170 180 190 <br />0-15 13.6 16.2 19.0 22.0 25.3 28.8 32.5 36.4 40.6 <br />20 14.4 17.1 20.1 23.3 26.8 30.5 34.4 38.6 43.0 <br />25 15.0 17.9 21.0 24.4 28.0 31.8 35.9 40.3 44.9 <br />30 15.7 18.7 21.9 25.4 29.2 33.2 37.5 42.0 46.8 <br />35 16.1 19.2 22.6 26.2 30.1 34.2 38.6 43.3 48.2 <br />40 16.6 19.8 23.2 27.0 30.9 35.2 39.8 44.6 49.7 <br />45 17.0 20.2 23.7 27.5 31.5 35.9 40.5 45.4 50.6 <br />50 17.5 20.8 24.4 28.3 32.4 36.9 41.7 46.7 52.0 <br />55 17.7 21.1 24.8 28.8 33.0 37.6 42.4 47.6 53.0 <br />60 18.1 21.5 25.3 29.3 33.6 38.3 43.2 48.4 54.0 <br />Exposure D Ultimate Design Wind Speed (mph) <br />Mean Roof Height 110 120 130 140 150 160 170 180 190 <br />0-15 16.5 19.6 23.0 26.7 30.7 34.9 39.4 44.1 49.2 <br />20 17.3 20.6 24.1 28.0 32.1 36.6 41.3 46.2 51.6 <br />25 19.9 21.3 25.0 29.0 33.3 37.9 42.8 48.0 53.5 <br />30 18.6 22.1 25.9 30.1 34.5 39.3 44.3 49.7 55.4 <br />35 19.1 22.7 26.6 30.8 35.4 40.3 45.5 51.0 56.8 <br />40 19.5 23.2 27.3 31.6 36.3 41.3 46.6 52.2 58.3 <br />45 20.0 23.8 27.9 32.4 37.2 42.3 47.8 53.5 59.7 <br />50 20.3 24.2 28.4 32.9 37.8 43.0 48.5 54.4 60.6 <br />55 20.7 24.6 28.8 33.4 38.4 43.7 49.3 55.2 61.6 <br />60 20.9 24.9 29.3 34.0 39.0 44.4 50.1 56.1 62.5 <br />Wind Speeds are per ASCE 7-10 for Ultimate Design Wind Speed at 33 ft. above ground. MRH = Mean Roof Height in Feet for Roof Pitches <br />6:12 and Less Equates to Roof Slopes 12°< θ < 27° for Zone 3. <br />302 E Santa Clara Ave <br />9/25/2024