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. �. <br /> - . � <br /> CONSTRUCTI�N R VALUE� - ( <br /> - . � <br /> CEtLING SECTION (INSULATED) : <br /> 1 lntertor air film �.F1 <br /> 2 5 "�i � rt- D o�S l0 <br /> � 3 -5d i�E�C ��v <br /> 3 4 � Exterio� air fllm still ) �.�1 <br /> TOTAL R � 5/,'] <br /> U � 1/R = ��/� <br />�.. � <br />� <br />�"� � CEILiNG FRAHING SECTION: <br />' I 2 5 1 Interior air film �.f�l <br /> � 2 $ '' � 9 Q r �O <br /> AIR VENTED 3 ' � � ���' �'� <br /> 4 Interior air film still �. 1 <br /> FLOW 5 /y, inches soft wooci �,3�' <br /> . TOTAL R = 48,i� <br /> � U = T/R = /�2 <br /> ' . CE I L I NG SECT I ON (I PlSULATED) : <br /> �y��T�,��,��,��,�saa��r�,�ata�� 1' I n te r i or a i r f i 1 m �.F 1 <br /> 2 <br /> 1 3 .. <br /> 4 Exterior air film still �. 1 <br />� TOTAL R = <br /> � ' � � Ua 1/R = <br /> �� �, <br /> i 2 3 4 5 CE I L I Nr, FRAH I Nr, SECT I O�J: � <br /> 1• interior ai r film �.F1 <br /> VENTED 2 <br /> � 3 <br /> . 4 Extertor air film still �. 1 <br /> 5 tnches soft wood <br /> TOTAL R = <br /> • U � 1/R = <br /> 3 4 5 . <br />� �.. :. ;: : "�' :`� <br /> , �, -�..{•"Y::�: �.�;, ., 1 InsTde air film �.�1 <br /> ;; ::�;: ,1 � 3 . <br /> 4 � <br /> /J/� ( 2 5 Outside air film �. 17 <br /> � TOTAL R � <br /> � , <br /> � U � 1/R = <br /> 13 page 4 <br />