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�. <br /> i <br /> � ^•� V <br /> �c• 5r OF MIf�tNESOTA <br /> . . � . <br /> CONSTRUCTION: R-VALUE : <br /> � -------------------------- <br /> CEILING SECTION ( INSUL . ) : <br /> 1 ) INTERIOR AIR FILM � 0 . 610 <br /> 2 ) 5/8 " DRYWALL 0 . ?50 <br /> 3 ) 14 " BLOWN INSL . a4 . 000 <br /> 4 ) EXT . AIR FILM ( STILL ) O . E10 <br /> 31 TOTAL R-VALUE : 45 . E70 <br /> J <br /> c� U = 1/R = G . 022 <br /> , <br /> VEN TED � CEILING FRAMING SECTION: <br /> �� �, 1 INTERIOR AIR FILM 0 . 6�C <br /> 2 ) 5/8 " DRYWALL 0 . �5C� <br /> 3 ) 10-1/2 " BLOWN INSL . 3° . 000 <br /> S� q�R � ) EXT . AIR FILM ( STILL } C . E1� <br /> ��1 FLO�l� � �-1/2 � � SOFT wooD a . 3so <br /> 2J TOT�L R-VALUE : a� �50 <br /> U = 1/R = O . C23 <br />