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OWNER <br />EXTERIOR ENVELOPE AVERAGE '*U’* COMPUTATION <br />SITE ADDRESS /. e a-f gV. <br />CONTRACTOR date phone <br />Determine working square footage of each. <br />1. Total exposed wall area_ _ s.f. X .19 »!XL. /L <br />2.Total roof/ceiling area .... s.f. x .04 « ^ g. <br />Total exposed wall area above floor = <br />. . . . . . . . . . . . . . . //^a. Total wall window area....... <br />b. Total door area. . . . . . . . . <br />c. Total sliding glass door area <br />d. Total fireplace wall area <br />e. Total wall framing area (average 10%). . . s.-T. <br />f# Total net wall area above floor... . . . . <br />g. Total rim joist area. . . . . . ... . . . . . (^Lf^o s.-P. <br />& Vv <br />Total exposed foundation area ® -f. <br />h. Total foundation window area... V •f, <br />i. Total net foundation area above grade. . S^3 •f. <br />Determine **U** value of each wall segment. <br />a./So r.X ”U". <»4 as <br />b.iSo 5. f X "U".e>t>- <br />c.■A5fc f.-r X "U”/ cb a- <br />d.5.y:X "U"f c 6*= <br />e.X *'U" <br />f.X "ir a: <br />s-X "U"= <br />h.X "U"B <br />i.X "U”s <br />/c .^0 <br />!t> >S:C <br />IT.34> <br />A, <br />3..Total 31-6^ <br />If Item y/3 is the same as, or less than Item #1, you have met the <br />intent of SBC 6006(c)2. <br />■i <br />V 4