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CONSTRUCTION R VALUC <br /> CEILING SECTI��i (INSULATED) : <br /> 1 in[erlor air film (1,�� <br /> . 2 ,/� " S�e�-�- � ►t ��, <br /> 3 t �' L <br /> 3 ,4 4 Exterior air f11m still ) �.�1 <br /> TOTAL R = L�J� <br /> U � 1/R = „Q � <br /> � � CEILING FRAHINr SECTION: <br /> I 2 �J 1 Interlor air f11m f1.E,1 <br /> 2 _5/�? '� SK��-t- -�r� ..Sh <br /> AIR VENTED 3 10;• � �7-od <br /> FLOW � Interior air film stil �. 1 <br /> 5 ,���' inches sof t woo�i i�_'�r� <br /> TOTAL R = e�.3•�� <br /> U = 1/R = .,�,� <br /> ' . CE(L I�dG SECT l ON (I NSULATED) : <br /> d���"�����.� .����__T�� 1' I n te r i or a i r f i 1 m �.F 1 <br /> � 2 <br /> � 3 _ .. <br /> 4 Exterior air film still �. 1 <br /> TOTAL R <br /> � � UR 1/R = <br /> / {, <br /> I 2 3 4 5 CEILINr, FRAMINr, SECTION: <br /> 1• InterTor 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 /> � :� y` :�'� `•,,,~� <br /> � ., _:• ;: '':`►<�"YJ:;: ��`� 1 Inside air film �.F1 <br /> ;; :::.%-�• '. •. � 2 <br /> 3 • <br /> 4 <br /> �� .�i Outside air film �. 17 <br /> � � 2 TOTAL R � <br /> �� <br /> U � 1/R � <br /> Page 4 <br />