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` EXTERIOR ENVELOPE AVERAGE "U" COMPUTATION <br /> . . . . . ...... . . . . . . <br /> OROcopy <br /> OWNER; NRL� ---- nnUr :`.—Io=1(.0 <br /> SITE ADDRESS: PHONE : <br /> CONTRACTOR: U _':Kt BLVE fly'_\77 PLAN # C\ <br /> Determine working square footage of each <br /> 1. Total exposed wall area - ;c1 (9 sq. ft. x .11 = 395,GC9 <br /> 2. Total roof/ceiling area 2\ (rD2 sq. ft. x .026 = 5Cp,24 <br /> Total exposed wall area above .floor= ?2 r <br /> a. Total wall window area S 1A 32 <br /> b. Total door area `111-1 <br /> c. Total sliding glass door area 1\5, 5- - <br /> d. Total fireplace wall area <br /> e. Total wall framing area (average 10%) <br /> f. Total rim joist area �- <br /> g. net wall area above floor 2283,53 <br /> h. wall area above floor <br /> wall area above floor <br /> j. frame wall area at foundation <br /> Total exposed foundation area= \2S <br /> k. Total foundation window area <br /> 1 . Total net foundation area above grade 12� <br /> Determine "u" value of each wall segment <br /> (e.g. window, door, each separate wall section) <br /> a. G-14,32— - X "U" 53 = 11C0,32 <br /> • b. \--1 \1) X "un 4 1/ = , \ 1 <br /> c. 11 ,4 x • <br /> • d X "U" _ <br /> • <br /> e -2SA\-\g3 X "U" ,.Y\ <br /> f 2 • X „U„ = 1�� — <br /> g. 3\53 X „U" _ X11;TV <br /> h. X U = <br /> i X U = <br /> j . x ,1U" = <br /> A - <br /> If item #3 is the sam- <br /> k X "U" = as , or less than item <br /> #1 , you have met the <br /> 1 . Ix "u" \T 5 intent of SBC 6006 (c <br /> 3. Total = <br />