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Total exposed roof/ceiling area = � � f� � <br /> j . Total skylight area. . . . . . . . . . . . . . . . . . . . . . . . . . --..._._ <br /> k. Total roof/ceiling framing area (average 10%) . ��� <br /> l. Total net insulated roof/ceiling area. . . . . . . . . ' .' ��� <br /> Determine "U°' value for each roof/ceiling segment. <br /> � �R X ��U�� . _ .� <br /> . <br /> k. �:r-i X ��U�� . -- _ _ � <br /> 1�. � ,� ��:� X ��U,� ,. , , _ „ - <br /> 4. . . . . . . . . . . . . . . . . . . . . . . . . . . . .Tota1 - <br /> If total of ��4 is the same as, or less than ��2, you have met the <br /> intent of SBC 6006(c}1, <br /> Alternate Building Envelope Design <br /> To utilize the total envelope system method, the values e�tablished <br /> by the sum of Items ��3 and ��4 shall not be greater than the sum of <br /> Items ��1 and ��2. <br /> � r� �/}I.. % r ^.r <br /> 1. �c� ��,I i �� � L• I � 1 '�° U~ I� � ',_ <br /> ,, �. <br /> 3 . `,;: _ - + 4. -- �- _ • - `, <br />