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CONSTRUCTI�N R VALUC ' <br /> CEILING SECTIQ�� (INSULATED) : <br /> , � Interlor air film 11.F1 <br /> 2 �=tYr'�J i,t�-� /�t 'r f�.4� <br /> ' 3 � ,. ��r��,�,!�"�.�x.��r ? �..LL�, <br /> 3 4 4 Exterior air film still) �•�1 <br /> TOTAL R =s�j,�,� <br /> U = 1/R = r�'`� �� <br />�• / CEfLlNG FRANINf SECTION: <br /> � 2 5 1 Interior air film �.f�t <br /> . 2 <br /> AIR VENTED 3 <br /> k Interior air film stiil �. 1 <br /> FLOW �j inches soft wooci <br /> TOTAL R a <br /> ' U = i/R = <br /> ' . CEILING SECTION (IFJSULATED) : <br /> ,�„�,�����,•��,��._�c,4����u� 1' I n t e r i o r a i r f i 1 m �•F 1 <br /> 2 <br /> . 3 � <br /> 1 4 Exterior air film still �• 1 <br />� TOTAL R = <br /> � •I \ U s 1�R = <br /> �' ,-�, <br /> � 2 3 4 � CEIL1Nr, FRAMINr, SECTIO��: <br /> 1• Interior air film �.F1 <br /> VENTED 2 <br /> � 3 <br /> � Exterio� air film still �• 1 <br /> 5 tnches soft wood <br /> TOTAL R = <br /> • U = t/R = <br /> 3 4 5 � • <br /> ■ : - -- .`''.�l <br /> � •• '�;i``='���� � ��` � �. 1 Inside air film �.�1 <br /> ;; =:;:.;. .�� :- � 2 <br /> - 3 <br /> � 4 � . <br /> / � � ( 2 5 Outside air film �• 17 <br /> y . TOTAL R � <br /> � , U � 1/Rs <br /> .1 _— <br /> 13 Page 4 <br />