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EXTERIOR ENVELOPE <br /> AVERAGE"U"COMPUTA'fION <br /> Page 4 <br /> ROOF/CLG SECTIONS 10%Ceiling Framing(Item"L") R-Value <br /> 1. Interior air film 0.61 <br /> —"`'- 2. 5/8"gypsum wallboard 0.56 <br /> .r✓�'-=""" <br /> �.��-�"' 3. Framing member(3 1/2"soft wood) 4.38 <br /> �rF. <br /> __----+==.-=--' 4. Insulation above framing(3.33/inch) 41.625 <br /> _.-c�-�.-%".---^ t��.`4; i'a: <br /> _,..-:-�-,:---..�. ._...�.� .. .} 6. E�rterior air film(15 mph movement) 0.17 <br /> r"�" -'�''"- ._ <br /> =�� `"�"`��T"��'�''� Total R-Value = 47.35 <br /> �ta.n `.._� \` � <br /> � <br /> ♦ : � :`: .:�. - U-ValUe = 0.021 <br /> �. .� � .. , <br /> . '� `' ' <br /> �. , ,� s- <br /> .-- <br /> �.�,,.- <br /> �.: ��-�;;•__;��:;_;__------- <br /> _=�<= �t.- 1, �--- Insulated Ceiling Area(Item"M") R-Value <br /> -- t'�' �'t`' 1. Interior air film 0.61 <br /> � �s .... .....� ...� <br /> � r�'�'•� 2. 5/8"gypsum wallboard 0.56 <br /> � <br /> ' � '�'a`� K"� 5. 16"blown insulation(3.33/inch) 53.28 <br /> 6. E�cterior air film(15 mph movement) 0.17 <br /> �;��� Total R-Value = 54.62 <br /> '`"s'�':;';�k:'u�,"K,,-;^>, U-V alue = 0.018 <br />