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CONSTRUCTION R vnt_u� <br /> CEILING SECTI��i (INSULl1TE�) : <br /> 1 Interlor air film fl,(,1 <br /> . z _ 58 `17e.�w��� 053 <br /> 3 zo" r.�s.,.� S�• o 0 <br /> 3 4 4 Exterlor air fllm still) �.�1 <br /> TOTAL R = s 1, �S <br /> U - 1/R = •o� <br /> � \ <br /> � CEILING FRAHING SECTION: <br /> � 2 5 1 Interlor air film t1.F1 <br /> 2 s��' ��-`�v�r4 �L �S 3 <br /> AIR VENTED 3 4 '� �, 3 , z <br /> FL�w 4 Interior air film still n. 1 <br /> 5 5%y" inches soft woo�1 (a�gg <br /> � TOTAL R =�4,� <br /> U = 1/R = , oZZ <br /> ' • CEILItdG SEf,TION (IFlSULATED) : <br /> �,^.�sc^,�S'.����s���.�__ 1' 1 n te r i or a i r f i 1 m �.F 1 <br /> . 2 <br /> � 3 � <br />� 4 f.xterior air film still �. 1 <br /> TOTAL R = <br /> � '� � Ua 1/R = <br /> {' �� <br /> I 2 3 4 5 cE���Nr, FRANIfJr, SECT101i: <br /> 1• Interior air film �.F1 <br /> VENTED 2 <br /> � 3 <br /> . � Exterior air film sti )1 �. 1 <br /> 5 inches soft wood <br /> TOTAL R = <br /> ' U � 1/R = <br /> 3 4 5 � . <br />� . . .' =`..;� ;�.s c• •w� <br /> . .. �: •�t`'�`Y,..•1t-.� �7��1� <br /> .,�;r :. ► 1 ,Inside air film <br /> ;; =:::::;::� :: � - 3 . . <br /> . 4 .. <br /> �,�� I 2 5 Outside alr film �. 17 <br /> '/f TOTAL R � <br /> ��' s <br /> U � 1/R <br /> Page 4 <br />