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, CONSTRUCTION R VALUE <br /> CEILING SECTION ( INSULATED) <br /> 1 INTERIOR AIR FILM 0 . 61 <br /> 2 5/8" GYPSUM BOARD 0 . 56 <br /> 3 12" BLOWN INSULATION 44 . 00 <br /> 4 EXTERIOR AIR FILM (STILL) 0 . 61 <br /> 4 TOTAL R = 45 . 78 <br /> U = 1 /R = . 02 <br /> 5V10, <br /> CEILING FRAMING SECTION <br /> 1 INTERIOR AIR FILM 0 . 61 <br /> 2 5/8" GYPSUM BOARD 0 . 56 <br /> ' W3 6 1/2" BLOWN INSULATION 20 . 17 <br /> 4 EXTERIOR AIR FILM ( STILL) 0 . 61 <br /> 5 5 1/2" SOFT WOOD 6 . 87 <br /> TOTAL R = 28 . 82 <br /> U = 1/R = . 04 <br /> 7 74V <br /> • <br /> \NN <br /> ‘ . . . • <br /> 1 <br /> � 1 <br /> , \k. <br />