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' Element <br />NOTE: Cop� thi� pag� la u many �om+t u ths buldkig has d�mMti <br />� <br />� �_ R-38 insulation <br />2x4 joist 24" o/c � <br />5/8" G.W.B. <br />SKETGH OF ELEMENT <br />Frarning Raoo f A �ppM1�aN�I = <br />�rt� Thickn�ss R/I� <br />Inch�s Thiekn�ss <br />Air Film - - <br />Insulation in cavity 14 - <br />Insulation abovc joist 10.5 - <br />7oist 3.5 1.25 <br />G.W.B. 5/8 .9 <br />Air Film ' - <br />RSoi�{d�� C+ a I <br />i <br />.61 .61 <br />_ 38 <br />.56 <br />. 61' <br />.56 <br />.61 <br />Summation R Valuss 34.51 39•78 <br />U = 1/R ,029 .0251 <br />� <br />U valu� for Elam�nt lAvg.) = i•94•.0251)+(.06+".029) <br />.0235+.00174=.0253 <br />Mea oi El�ment• = <br />•!wa o1 EMm�rrt ir net vea atter openi+gs :txh as doort� whdows �nd s�9� � <br />b � �n subtacs�d. <br />s <br />