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. -� � <br /> Total exposed roof/ceiling area = �� � <br /> TataY�--�grQs�""ro�o�''"/'ce}iTi�n`g area = <br /> � . Total skylight area. . . . . . . . . . . . . . . . <br /> k. Total roof/ceiling framing area. . . . s�, �1 <br /> 1. Total net insulated roof/ceiling area �Z , <br /> Determine "U" value for each roof/ceiling segment . <br /> � X rrUn - <br /> . <br /> k, .�8� � X ,�U" � �`� = i � 8 <br /> 1. -� ?�• �-- X „U t� -��— _ �o. 6 <br /> � . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Total = ��%Z, yO <br /> If total of #4 is the same as , or less than #2 , you have met the intent <br /> of SBC 6006 (c) 1. <br /> To utilize the total envelope system method, the values established by <br /> the sum of items #3 and #4 , shall not be greater than the sume of items <br /> #1 and #2, <br /> 1. ♦ 2� a <br /> 3 . + 4 . _ <br /> Materials Therm. Resistance "R" <br /> Exterior Air � �� <br /> Siding Material � �'�� <br /> Sheathing L .o� <br /> Insulation ry. � <br /> Sheetrock , +�jj <br /> Interior Air , �� <br /> Studs C •�� <br /> Rim f= � � <br /> Conc . Blks . t ' �` � <br />