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CONSTRUCTION R VALUE. <br /> CEILING SECTION (INSULATED) : <br /> I Interior air film n.61 <br /> 2 -SL.+,,� sz <br /> 3 L3 �..S„s _ 94 00 <br /> 3 4 4 Exterior air film (still) O.A1 <br /> TOTAL R - Jsi <br /> U - 1/R - .o2.z <br /> CEILING FRAMING SECTION: <br /> 2 5 1 Interior air film O,FiI <br /> 2 56de.-is I S L <br /> AIR VENTED 3 _aioW,, 14TJ 30,00 <br /> FLOW 4 Interior air film still 0. 1 <br /> inches sof t wood y,3g <br /> TOTAL R = 36•I z., <br /> U = 1/R - oz <br /> II <br /> I - CEILING SECTION (INSULATED) : <br /> V Interior air film 0.61 <br /> 2 <br /> 3 <br /> 4 Exterior air film still n.61 <br /> TOTAL R = <br /> J <br /> U - 1/R = <br /> I 2 3 4 5 CEILING, FRAMING SECTION: <br /> 1• Interior air film 0.61 <br /> VENTED 2 <br /> 3 <br /> 4 Exterior air film still n.6r <br /> 5 Inches soft wood <br /> TOTAL R - <br /> U - 1/R - <br /> 3 4 5 <br /> Inside air film n.Al <br /> II i+ l 1 <br /> 2 <br /> 5 Outside air film n, 17 <br /> TOTAL R = <br /> U - 1/R - <br /> Page 4 <br />