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<br />COEFFICIENTS AND PRESSURES <br />Roof Components and Cladding <br /> <br />Actual pressure <br />Velocity pressure <br />Edge strip width <br /> <br />= Velocity pressure x Use factor x Coefficient <br />= 21 psf Use factor = 1.0 <br />= 3 feet End zone width = 6 feet <br /> <br />Member 1 --Span 24 ft., Spacing 24 in., Slope 4 /12, Overhang 1.33 ft. <br />Member located in interior zone: Tributary area = 192 square feet <br />Interior area Coefficient - -1.1 Pressure = -23.1 psf <br />Eave and ridge areas: Coefficient = -1.2 Pressure = -25.2 psf <br />Overhang area : Coefficient = -1.55 Pressure = -32.55 psf <br />Wind uplift at truss bearing = 634 pounds <br /> <br />Member 2 --Span 24 ft., Spacing 24 in., Slope <br />Member located in end ZOlle: Tl-ibutary area = <br />Interior area Coefficient = -l.S <br />Eave and ridge areas: Coefficient = -l.S <br />Overhang area Coefficient = -1.6 <br />Wind uplift at truss bearing = 947 pounds <br /> <br />4 /12, Overhang 1.33 ft. <br />192 square feet <br />Pressure = -37.S psf <br />Pressure = -37.S psf <br />Pressure = -33.601 psf <br />