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4 <br /> MINNESOTA STATE BUILDING CODE DIVISION <br /> EXTERIOR ENVELOPE AVERAGE "U" COMPUTATION <br /> OWNER <br /> SITE ADDRESS <br /> CONTRACTOR DATE PHONE <br /> Determine working square footage of each. <br /> 1 . Total exposed wall area ;91 sq. ft. x ,/ / _ g)"../.2 <br /> 2. Total roof/ceiling area ,1/‘q sq. ft. x .02[0 = 6,. ,3L, <br /> Total exposed wall area above floor = <br /> a. Total wall window area f <br /> b. Total door area .2/1 <br /> c. Total sliding glass door area .5.� <br /> d. Total fireplace wall area _ O <br /> e. Total wall framing area (average 10%) <br /> f. Total net wall area above floor 4 <br /> g. Total rim joist area 4' <br /> Total exposed foundation area = <br /> h. Total foundation window area L� <br /> i. Toal net foundation area above grade y <br /> Determine "U" value of each wall segment. <br /> a L?7 x "u" = , v5 <br /> b. „G, X "U" . b/ = <br /> c. _S3 x "U 3_S = j � <br /> R,�._c_S- <br /> d. X "U" = <br /> • <br /> e. Sq X "u" , C7/ = x,9/6 <br /> f. Lf93•:.) x "u" ,eV3 = (, /:v? <br /> g. `f,o X "U" .C/ / = t, 64( <br /> h. X "U" = <br /> i. 49. x ,.U„ 083 = 3. &.5- <br /> 3 <br /> 53. Total = F�5/•(0� <br /> If item #3 is the same as, or less than item #1 , you have met the intent <br /> of SBC 6006(c)2. <br /> 4, <br />