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Total exposed roof/ceiling area = Z��, O � <br /> j. Total skylight area. .. . . . . . . . . . . . . . ... ... . -� � <br /> k. Total roof/ceiling framing area (average 10%). . . 2��,(,o <br /> 1 . Total net insulated roof/ceiling area... . . .. . . . . �-y�, � <br /> � . Oetermine "U" value for each roof/ceiling segment. <br /> �. �- X ��U�� .� _ -E3 ' <br /> k• 'Z7 -rj� C� X ���„ � a21 _ �� � <br /> , � . f�'T�� I `"f' X uU n . � �� = f V ' <br /> . 4. . . . . . . . . . ... .. . .. . . . . . . .. . . . . . .Total = <br /> If total of n4 is the same as, or less than �2, you have met the intent of <br /> SBC 6006(c}1 , . . <br /> Alternate Building Envelope Design � . .. <br /> � To utilize the total envelope system method, the values established ,by the <br /> sum of items ;3 and n4 shall not be greater than the sum of items nl and n2. <br /> l. + 2, _ <br /> 3. + 4. _ � - <br />