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+ ~ CO�iSTRUCT I ON R VALUC <br /> CEILING SECTIQN (ft�SU�ATEQ) : <br /> 1 Intertor at� fllm (1.F1 <br /> 2 �� � -T , � <br /> 3 ,�s�` y' .� <br /> 3 4 4 Exterior air film still �.F�1 <br /> TOTAL R a 4��g <br /> U - 1/R - , o2Z <br /> � CEILING FRAHING SECTION: <br /> I 2 5 1 intertor atr film (1.F1 <br /> 2 /� SQ . ,s6 <br /> AIR VENTED 3 u �A � I o <br /> FLOW 4 Interior air film sti11 �. 1 <br /> 5 ?� Z i nches sof[ wooci c-} , �� <br /> • 70TAL R s-��Z <br /> u - 1/R - , o G <br /> � <br /> CEILING SEf,TiON (INSULATED) : <br /> :�^���"�°�`� �s ' �.�. 1' 1 n t e r T o r a i r f T 1 m �.F 1 <br /> 2 <br /> G 3 <br /> 4 Exterior air film still �. 1 <br /> TOTAL R a <br /> � u - ��R - <br /> �, <br /> I 2 3 4 5 CEILINr, FRAMINt; SECTION: <br /> 1• Interior air fllm �.F1 <br /> VENTED 2 <br /> 3 <br /> - 4 Exterior air Ilm still �. 1 <br /> 5 lnches soft wood <br /> TOTAL R � <br /> U � 1/R � <br /> 3 4 5 <br /> � . .. �•.. <br /> ,- :.'''.4:•.,. <br /> .� :: '''�;``Y'j,''' ^`:'• .'. 1 Inside air film �.�1 <br /> .' -�,��•�•` � 3 . <br /> 4 <br /> �� ( 2 5 Outside air ilm � n. 17 <br /> �/� TOTAL R � <br /> �" � <br /> U � 1/R � <br /> Page 4 <br />