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CONSTRUCTION R VALUE• ' <br /> CE f L(Nr, SECTI 0�2 (I NSULATED) : � <br /> - � Interlor a( r ffim �.F1 <br /> . 2 �� „ � s��. .S6 <br /> 3 �?- �1 Y i5/o�••n S/�5y.o <br /> 3 4 �, Exterior air ffim (stiil ) �•�1 <br /> TOTAL R = �j� <br /> U = 1/R � ' � Z <br /> t <br /> \ . <br /> / CEILING FRAHING SECTION: <br /> � 2 5 1 Interior air riln �.�1 <br /> ' 2 i� 6 Su n. •.S�i <br /> AIR VENTED 3 0 -' �a�^- 3fr,a <br /> 4 Interior air film still �. 1 <br /> FLOW 5 •S ' inches so�c woo� S�•3S <br /> TOTAL R � 3G��3 <br /> • U = 1/R � •03 <br /> � • <br /> � . CEILI�IG SECT10tt (Il15ULATED) : <br />,�r�������.,�ri�t���.������ 1' I n te r i or a i r f i 1 m �.F 1 <br /> 2 <br /> - 3 -- <br /> 4 Exterior air filn still �• 1 <br /> TOTAL R = <br /> � � �� ua i/R = <br /> � �� �i ��� <br /> ( �----0 3 4 5 cE� ��Nr, FRAt11 Nr, sFc�i ori: <br /> 1• Interior air film �•�� <br /> VENTED 2 <br /> � 3 <br /> 4 Exterior air film still �. 1 <br /> ' S lnches soft wood <br /> T07AL R = <br /> . ' U = 1/R = <br /> 3 4 5 � <br /> , - <br /> , -� �'iL=+ ��� �, ,'�. `• � instde atr fitm �.�1 <br /> :;: �' 3 <br /> .,l r ;; � . . � <br /> . � � <br /> /// � Outstde air film �• 17 <br /> /�/�' � 2 TOTAL R - <br /> %/ ,( <br /> i� ,�, U = 1/R : <br /> 18 <br />