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• ? <br /> _ • V P <br /> CONSTRUCTI�N R VALUC• ' <br /> CE I L I�ir, SECT1 tlN (I NSULATED) : � <br /> � Intertor air film t1.F1 <br /> . 3 '�O <br /> 3 4 �+ Exterio� air fitm still ) �.�t <br /> TOTAL R = ��S� <br /> U s �I R =��Z� <br />� <br />� / CEILING FRAMING SECTION: <br /> � 2 5 1 Interior ai r fi lm � Q."F1 <br /> . 2 O,�„���\ s/A , s� <br /> AIR VENTED 3 �� �;�.,-�,�5 2���u� <br /> 4 intert' or ai r fi lm sti 11 A.� <br /> FLOW 5 z.X�z inches sof t woo�i _ �3,9y <br /> , TOTAL R = e��, <br /> ' u � t/R = �,gb <br /> � . • � � . <br /> ' . CEILING SECTION (IMSULATE[�) : <br /> ,�.,�,,�,�y�����,���,�,c,�p,��,�s�.► 1' 1 n te r i or a i r f i 1 m � 0•F 1 <br /> 2 <br />\ 3 •� ` <br /> 4 Exterior air film still �• 1 <br />'� TOTAL R = <br /> J � u = t/R = <br /> , . <br /> i, � . <br /> I . 2 3 4 5 CE 1 L I Nr, FRAM I�Jr, SECT I O�i: � <br /> � 1• Intertor air film A.F1 <br /> VENTED 2 <br /> � 3 <br /> . 4 Exterior ai� fiim still �. 1 <br /> . 5 ioches soft wood <br /> TOTAL R = <br /> . . • U = 1/R = <br /> 3 4 5 � <br />' .�..- •:==.:;: ::%_ �•":`' ., • � � <br /> • • .;: .•:}�:.'=*+:".,�. � . 1 inside air f i Im A.�1 <br /> . �.r•,s.,•,..,..�.•�tj����r� � .. . . � � . . . <br /> - . . 3 <br /> . � � � y �� � -; <br /> / � � ' 2 . 5 Outside aT� film �• 17 <br /> y . TOTAL R � <br /> / <br /> ,C� U � 1/R � __ <br /> 13 Page 4 <br />