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A • , ��-�5'��� <br /> �a <br /> R� <br /> � EBTERIOR ENVELOPE AVERAGE U COMPUTATION <br /> � <br /> OWNER: � DATE: 8'3O �� <br /> SITE ADDRESS: <br /> CONTRACTOR: PHONE: � <br /> Determine working square footage of each: <br /> 1. Total exposed wall area. . sq. ft. x .11 = <br /> 2. Total roof/ceiling area. . sq. ft. x .026 = • <br /> Total exposed wall area above floor = �/qg ' <br /> a. Total wall window area. . . . . . . . . . . . . . . . . . . . . . . . 7/7 <br /> b. Total door area. . . . . . . . . . . . . . . . . . . . . . . . . . . . . /�ls <br /> c. Total sliding glass door�area. . . . . . . . . . . . . . . . Z�D <br /> d. Total wall framing area (average 10$) . . . . . . . . . <br /> e. Total net wall area above floor. . . . . . . . . . . . . . . <br /> f. Total rim joist area. . . . . . . . . . . . . . . . . . . . . . . . <br /> Total exposed foundation area = _� � <br /> g. Total foundation window area. . . . . . . . . . . . . . . . . _ O <br /> h. Total net foundation area above grade. . . . . . . . . /,L <br /> Determine "U" value of each wall segment: <br /> a. x ��U„ .2�s = /bd'. S' <br /> b. x "U" _ <br /> . <br /> c. x "U" _ <br /> .. <br /> d. X ��U�� ,/ _ . <br /> e. 4Z x "u" .OS/s" _ �/ir. G <br /> f. x "�,� .ay� = 9- <br /> h. x "U" •088 = <br /> 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Total = �22. �_ <br /> If item #3 is less than or equal to item #1, than the have met the <br /> intent of SBC 6006(c)2 . <br /> Total exposed roof/ceiling area = Z,��� <br /> i. Total roof/ceiling framing area (average 10$) . <br /> j . Total new insulated roof/ceiling area. . . . . . . . . <br /> Determine "U" value of each roof/ceiling se ent: <br /> i. 1'f!�— x ,�U�� _ � <br /> ] • .�1,� / X „U„ = 3 <br /> 4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Tota1 = �9�, ? <br /> If total of #4 is less than or equal to #2, than you have met the <br /> intent of SBC 6006(c) 1 . <br /> Alternate Huilding Envelope Design <br /> To utilize the total envelope system method, the values established <br /> by the sum of items #3 and #4 shall not be greater than the sum of <br /> iteme �1 and #2 : <br /> �. +���`•� + Z. ` 7", 3�' _ <br /> 3. ��� � 7 + 4. ��.7 = <br />