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<br />Elevation Sample Calculation Step 1: Calculate Vertical Loads <br /> <br />Elevation Sample Calculation <br /> <br />Total Weights by Level <br /> <br />Roof: <br /> <br />Surface Area = [15.81 ft. + 2 ft. overhang]x[60 ft+ 2 ft, overhang]x[2] =2208 ft2 <br />Projected Area = [15 + 2 (15/15,81)]x[60 + 2]x[2] = 2095 ft2 <br /> <br />Shingles: <br />Felt <br />Plywood: <br />Truss: <br /> <br />2208 ft2(2 pst) <br />2208 ft2(0.7 pst) <br />2208 ft2(1.5 pst) <br />2095 ft2( 5 pst) <br /> <br />=44161bs <br />= 15461bs <br />= 33121bs <br />= 10,4751bs <br /> <br />First Floor Ceiling: <br />Area = 60 x 30 = 1800 ft2 <br /> <br />1nsuIation: <br />Plywood <br />Plaster <br />Mise, <br />Walls <br />1801fext. <br />157lfint. <br /> <br />Subtotal <br /> <br />1800 ft2(8 pst) <br />1800,ft2(1.5 pst) <br />1800 ft2(10 pst) <br />1800 ft2(2 pst) <br /> <br />(4' trib.)(18 pst) <br />(4' trib. )(20 pst) <br /> <br />= 14,400 Ibs <br />= 2,700 Ibs <br />= 18,000 Ibs <br />= 3,600 Ibs <br /> <br />= 12,960 Ibs <br />= 12,560 Ibs <br /> <br />W2 = 83,970 Ibs <br /> <br />60144 <br /> <br />VI-E,51 <br /> <br />Engineering Principles and Practices of Retrofitting Flood-Prone Residential Structures <br />January 1995 <br />