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� CONSTRUCTION R VALUC• � � <br /> CEILirt� SECTt��� (I��SULATED) : � <br /> . � � Intertor atr film �•F�� <br /> ' 2 t��n/� 8 C!-' <br /> 3 1 'Fi�1�.�`S!�:�5 ��� <br /> 3 4 4 Exterior air filn still) �•fl <br /> TOTAL R = <br /> . - � . 1/R =C��Zc� <br /> � CEILING FRAHIHG SECTION: � . <br /> I 2 5 1 Intertor atr fitm �•�1 <br /> 2 r� �- S/B`� o� - <br /> VENTED 3 'Z � `b���`°� <br /> A�R 4 Interior air film still �. 1 <br /> FL�w � ��y inches sof t woocl �{ <br /> � TOTAL R = � <br /> � U = 1/R = (�Q,_Z.� . <br /> � • . . <br /> ' . CEILING SECTION (1!lSULATE[�) : <br /> �i�,���„��M���t e g��q.��t�, 1' I n t e r i o r a i� f i l m � �.F 1 . <br /> 2 <br /> . - 3 . .. : <br /> 4 Exterior air film still �• 1 <br /> T07AL� R = <br /> J (� a lIR = <br /> ., <br /> � �• �. . � <br /> I 2 3 4 5 CE t L(Nr, FRArt 1 Hr, SECT!O�l: <br /> . . 1� Intertor ai r film �•�� <br /> VENTED 2 <br /> • . 3 <br /> 4 Extetior air film stilt �• 1 <br /> .' S trtches soft wood <br /> � � TOTAL R = <br /> , U = 1/R = <br /> 3 4 5 � . <br /> • �,,�,,t�.s+s �• � '�'';', . � � <br /> •--•'• -'�`�''" � n.�t <br /> .. •-:;�:=''''"� � 1 InsTde air film <br /> ••:l.:�':•r,' - 2 <br /> ;.� :=;3.:;:;� :, •- � . 3 . . <br /> ,..._ . . . <br /> ' � 4 n. 17 <br /> / � � I 2 S Outstde air film <br /> � TOTAL R � __ <br /> / . <br /> � U � �IR = _ <br /> . <br /> . 17 . <br />