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ti , -. <br />' � � � Roof Envelope: <br /> � k. Total exposed roof/ceiling area: (sq.ft.) 753 <br /> 1. Total roof/ceiling skylight area: (sq.ft.) 0.00 <br /> Total new roof/ceiling area: (sq.ft.) 753 <br /> m. Roof Framing Area:(sq.ft.) <br /> (10%of total roof framing area) 75.3 <br /> n. Total net insulated roof/ceiling <br /> azea: (sq.ft.)(k.-1. -m.) 677.7 <br /> Determine"U"value of each roof/ceiling element: <br /> 1. 0.00 x "U" 0.25 = 0.00 <br /> m. 75.3 x "U" 0.02 = 1.55 <br /> n. 678 x "U" 0.02 = 12.82 <br /> 4. total= 14.37 <br /> If item 4.is the same or less than item 2.,you have met the intent of SBC 6006(c)1. <br /> Compare item 2.to 4.: O.K <br /> Alternate Method: (Total Envelope System Method) <br /> SBC 6006(c)1 may also be satisfied even if item 4.is greater than 2.by considering the total envelope <br /> system method.To utiilize the total envelope system method,the values established by the sum of <br /> item 3.and 4. shall not be greater than the sum of items 1.and 2. <br /> 1 82.17 + 2 19.58 = 101.75 <br /> 3 42.82 + 4. 14.37 = 57.19 <br /> Compare summation of items 1.and 2.to 3.and 4.: O.K <br /> Page 2 <br />