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I <br /> i � t�" 'if <br /> [•1 L� <br /> D � x <br /> t"H f/� . <br /> y�H <br /> II '�H � �. � . � • . , r , . . <br /> N H <br />� x <br /> o�� <br /> ��g <br /> �V �] <br /> y y� ITEH "R" VALUE CALCULATIONS _ <br /> t� <br /> HH <br /> �� <br /> b y NALLS <br /> �❑ Nalls at Studs <br /> y� (Studs at 16" o.c.) <br /> H O V� <br /> Item R Value <br /> O.S. air film 0.17 <br /> 3/4" sidinq 1.05 <br /> 1/2" sheathinq 1.32 <br /> 2x4 studs at 16" o.c. 9.31 <br /> 5/8" gypsum Kall board •95 <br /> I.S. air film .68 <br /> TOTAL R VALUE 7.98 <br /> Wall at Insulation <br /> '�1 Component R Value <br /> O.S. air film 0.17 <br /> 3/9" sidinq 1.05 <br /> 1�' 1/2" sheatninq 1.32 <br /> � 3-1/2" batts 11.0 <br /> � � 5/8" qypsum rrall board 0.45 <br /> ' ' I.S. air film 0_68 <br /> � TOTAL R VALUE 19.67 <br /> 1 <br /> ' Average "U" Value of Hall: " ,?z' "'M�; 3r.: <br /> ��� �i'JEt 4 i t'- . . <br /> "U" avg. = F(insul) + F(framing) '�' �;�"`, . <br /> � <br /> ��' R(insul) R(framinq) ����r. � K�w . <br /> � y'�::,' <br /> �. <br /> � "U" avq. _ .85 + .15 = .058 + .p12 = .07 , <br /> � 19.67 7.98 �r;�- <br /> � <br /> � ' <br /> ,_. .,x•�����. :: � xcp�ai� <br /> �' � <br /> > <br /> � i� r lr4`�,. �t. . <br /> �...„�;».�. . <br />