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�/�-.�� ��G � � , . . <br /> CONSTRUCTION R VALUC , <br /> � CEILIN� SECT1��2 (INSULATED) : <br /> � Incerlor a ( r f( ln � • �� <br /> 2 %O i� (Zt:k. ���: <br /> 3 ----� s� <br /> ct �i�oGv 't�c�'?�� <br /> j 4 4 Exterior air f in (stili ) �•�1 U <br /> � TOTAL R = .3 t� D <br /> � 1 U = 1/R = . UzS� <br /> � � 1 � j' �I <br /> ., <br /> \\ <br /> / � C� ILING FRAHING SECTION: <br /> � 2 � 1 Interfor air riln �•�� <br /> 2 SI�l�� SU�.ze� Y�c::/c <br /> AIR VENTtD 3 <br /> 4 Interiot air 'ilm sti11 �• 1 <br /> FLOW � J;, inc~es SorC woo�i •�7 <br /> TOTAL R = ��5' <br /> � U = 1/R = �(� <br /> • <br /> � �/D �=l���� . <br /> ����✓ d ' . CciLIt1G SECT10�1 (1PlSULATED) : <br /> l„�� ���r� ���� 1' {nterior air film �•F� <br /> ._1�,,^,,--,-,.��,�. � <--��--� -,�.= <br /> 2 u �l-v��c <br /> � � 3 �t F v�-�. I'D �- <br /> 4 Fxterior ai r fi im sti I i �•�'1 <br /> T^�ra�*� = 3c:�.c�U <br /> ��,.� � 4 << F,�',,,�C�.�a o��. ll� _ �/,"7� <br /> '� �/ �;, t <br /> v - . � D2`f <br /> I 2 3 4 5 CEIL(Nr, FRAHINr, SECTION: <br /> 1• Interior air film �•�'� <br /> V E N T E D 2 j�ry 5�.e�.f-�'�� • SG� <br /> . 3 << wl D <br /> 4 Exterior air fiim still ) �• � <br /> ' S �2, �+ inches sof t wood j2 <br /> TOTAL R = �� <br /> � u = t/R = o y'Z. <br /> 3 4 5 . <br /> P A�r���� �tu�e <br /> , - <br /> L - `� <br /> -� �;�:: n.�t <br /> � -,.�'��=�-`"•�" 1 1 n s i d e a i r f i 1 m <br /> � :�=� �' ,1 3 � G ,�`-�rE <br /> �:1' � t . <br /> . � 4 � 2�� - w.r►c�u l�L� <br /> 5 Outside air film �� 17 <br /> /,�� � 2 TOTAL R - yd• � <br /> '/��, U � 1/R � �� <br /> 18 <br />