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Total exposed roof/ceiling area 425 sq. ft. <br /> j. Total skylite area 0.00 <br /> k. Total roof/ceiling framing area (average 1%) 4.25 <br /> I. Total net insulated roof/ceiling area 420.75 <br /> "U" value for each roof/ceiling segment. <br /> j. 0 x "U" = 0.00 <br /> k. 4.25 x "U" 0.030 = 0.13 <br /> I. 420.75 x "U" 0.025 = 10.58 <br /> 4� TOTAL 10.70 <br /> If item #4 is the same as, or less than item #2, you have met the intent of SBC 6006(c)1. <br /> Alternate Building Envelope Design <br /> To utilize the total envelope system method, the values established by the sum of <br /> items#3 and #4 shall not be greater than the sum of items #1 and#2. <br /> #1 124.88 + #2 11.05 = 135.93 <br /> #3 164.74 + #4 10.70 = 175.45 <br />