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<br />COEFFICIENTS AND PRESSURES <br />Roof Components and Cladding <br /> <br />Actual pressure = Velocity pressure x Use factor x Coefficient <br />Velocity pressure = 21 psf Use factor = 1.0 <br />Edge strip width = 3 feet End zone width = 6 feet <br /> <br />Member 1 --Span 14 ft.. Spacing 24 in.. Slope 4 /12. Overhang 2 ft. <br />Member located in interior zone: Tributary area = 65.33334 square feet <br />Interior area : Coefficient - -1.139 Pressure = -23.919 psf <br />Eave and ridge areas: Coefficient = -1.278 Pressure = -26.838 psf <br />Overhang area : Coefficient = -1.647 Pressure = -34.587 psf <br />Wind uplift at truss bearing = 491 pounds <br /> <br />Member 2 --Span 14 ft.. Spacing 24 in.. Slope <br />Member located in end zone: Tributary area = <br />Interior area Coefficient - -2.147 <br />Eave and ridge areas: Coefficient = -2.147 <br />Overhang area : Coefficient = -1.947 <br />Wind uplift at truss bearing = 765 pounds <br /> <br />4 /12. Overhang 2 ft. <br />65.33334 square feet <br />Pressure = -45.087 <br />Pressure = -45.087 <br />Pressure = -40.887 <br /> <br />psf <br />psf <br />psf <br /> <br />