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. _ . . <br /> CONSTRUCTIQN R,VALUE•' � • <br /> CEILING SECTIAN (INSULATED) : � <br /> � Interior air film A.F1 <br /> � 2 �, <br /> � 3 a � <br /> 3 4 4 Exterio� air film still) �.:� <br /> TOTAL R = _r. 6'� <br /> U � i/R = � Da-- <br />.. • . <br />� CEILING FRAHING SECTION: <br /> � 2 5 1 Interior ai r fi 1m A.f+l <br /> � 2 .�/ <br /> q�R VENTED 3 � sk I ,3 <br /> 4 Interior air film still 0. 1 <br /> FLOW 5 inches soft wooci <br /> . TOTAL R = � a— <br /> � U E i/R � �d�� <br /> � . . <br /> ' . CEILING SEf,T10N (INSULATED) : <br /> �,�^�,,,,�,c,�,,;_���+,r ��o���_��� 1' I 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 �. i <br />� TOTAL� R = <br /> J � \, u - ��R a <br /> 1' �, <br /> I . 2 3 4 � CEILlNr, FRAHINr, SECTION: � <br /> 1• Interior air film A.F1 <br /> VENTED 2 <br /> � 3 <br /> . 4 Exterior air fiim still �. 1 <br /> � 5 laches soft wood <br /> T07AL R = <br /> . __ <br /> . . • U = 1/R = <br /> 3 4 5 � <br /> I :..:•• ;;:;:;`'`''�`` -. . . <br /> ' .,;�.:•.,•.•...;y{`.'_��:►�'.."`:• " . � inside atr f.ilm A.f+l <br /> .<.� r?;;:;::� :�.::�. � . _ 3 . , • . <br /> :"'" . ' � <br /> � � � � y�� • , . <br /> / � _ ( 2 S Outside ai� ilm �• t7 <br /> � . . TOTAL R � �_ <br /> �•�' U � 1�R " <br /> 13 . Page 4 <br />