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CON57RUCTION R VALUC ' <br /> CE I L I NG SECTI Oti (I NSULATED) : • <br /> � Interior air ftlm �.F1 <br /> 2 � .S <br /> ' , 3 �6 R 56 (� '1• <br /> 3 4 4 Exte rio� air film still ) �.�1 <br /> TOTAL R = . $ <br /> U - i/R = �020 <br /> � . <br />� / CEILING FRAHING SECTION: <br /> � 2 5 1 Interior atr film f1.f�1 <br /> � 2 . . . <br /> AIR VENTED . . . 3 '^ <br /> 4 Interior ai� film still �. 1 <br /> FLOW ' S 2 inches sof t wooci . <br /> ' TOTAI R =��_ � <br /> ' U = i/R = • �I <br /> ' . CEILIHG SECTION (IFlSULATEO) : <br /> , r ��y���� t e �.�,,���t;�. 1' I n te r i or a i r f i 1 m � �.F 1 <br /> �2 <br /> ' - ' � 3 � .. <br />'1 4 Exterior air film stiil �. 1 <br /> " ' TOTAL R = <br /> J , �i . U s 1/R = <br /> ti• �. <br /> I _ 2 3 4 5 CE 1 L 1 Nr FRAM I Nr, SECT 10�1: � <br /> 1• Interior air fTlm �.F1 , <br /> VENTED 2 <br /> . 4 Exterior air film still �• 1 <br /> .� 5 tnches soft wood <br /> TOTAL R a __ <br /> . U = 1/R ' <br /> 3 4 5 � � <br />� •Y.1':"^•`.`,. .f: .`����! . � ' <br /> � : •� _,.:,.� � � n.�t <br /> • ,::.••:�=t�•• `nside air film <br /> .,.,,_ . <br /> :;:,.:;��:;::' :::� � . 3 . <br /> . . �•• . . <br /> .�i Outstde air film �• » <br /> �I� � 2 TOTAL R � <br /> � . U = 1/R � <br /> � _— <br /> 13 PaQe 4 <br />