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CONSTRUCTION R VALUE- <br /> CEILING SECTION (INSULATED) : <br /> 1 Interior air film <br /> 2 <br /> 3 <br /> 3 4 4 Exterior air film (stili) n.Al <br /> TOTAL R = <br /> U - 1/R � <br /> CEILING FRAMING SECTION: <br /> I <br /> L@ 5 1 Interior air film 0•61 <br /> 2 <br /> AIR VENTED 4 Interior air film stilt 0 1 <br /> FLOW 5 inches soft wood <br /> TOTAL R - <br /> U i/R = <br /> CEILING SECTION (INSULATED) : <br /> ^b2S17rJ ,"�3�'i&Ta�+.3Ss�?.� b 1' Interior air film n.Fl <br /> 2 <br /> 3 <br /> 4 Exterior air film still 6.61 <br /> oil TOTAL, R = <br /> U � 1/R = <br /> I 2 3 4 5 CEILING, FRAMING, SECTION: <br /> 1• Interior air film n.6i <br /> VENTED 2 <br /> 3 <br /> 4 Exterior air film still n.6J <br /> • 5 Inches soft wood <br /> TOTAL R = <br /> U = t/R = <br /> 3 4 5 <br /> • ,_. ,;: ;�•=* "., i Inside air film <br /> 4 <br /> / I 2 S Outside air film n.17 <br /> TOTAL R <br /> 13 Page 4 <br />