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U values... I thought brick/cavity/brick wall was 1.73...
U values... I thought brick/cavity/brick wall was 1.73?
I get something quite different... Brick Commons - 102mm --- 0.132 Air Cavity - 50mm ------- 0.180 Brick - 102mm ----------- 0.132 Plaster - 6mm ----------- 0.025 Total R Value = 0.469 where U = 1/R = 2.132 Just noticed a cell in an old spreadsheet got corrupted and defaulted to 1.37 which I am sure is wrong, thought it was 1.73, but calculating from data I get 2.132 (6mm plaster, most are 13mm obviously). Thanks. |
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