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� Element <br />NOTE: Copr �hi� pag� la u mary lormt u th� buAdfry has �Iw��nts <br />.' <br />Frartvng Ra6o ( A �ppAcabl�) _ <br />� �� R-38 insulation <br />� <br />2x4 joist 24" o/c <br />SKETCH OF ELEMENT <br />5/8" G.W.B. <br />M�� Thiekn�zs R/In R Valu� R vakN <br />Inch�s Thiekn�ss Solid CM� <br />Air Film - - .6l .61 <br />Insulation in cavity l4 - _ gg <br />Insulation above joist 10.5 - 28.35 <br />7oist 3.5 1.25 4.38 <br />G.W.B. 5/8 .9 .56 .56 <br />Air Film - - .61' .61 <br />� <br />I <br />. i <br />Summatlon R Values 34.51 39.78 <br />U = 1/R .029 .0251 <br />U V�lu� lor Elem�M IAvg.1 = i.94*.0251)+(.06*.029) <br />.0235+.00174=.0253 <br />Area of El�mant• _ <br />` Ana o1 El�m�rrt b net area aher openings r��ch ss doors, whdows md fky�ghtz haw <br />b � � n su0tac4d. <br />0 <br />