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Remodeling the office (new floor, ceiling & adding insulation) passive house retrofit
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10-30-12, 03:50 PM
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strider3700
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I believe that concrete board is smaller due to weight. 3x5 I'd assume has to do with around tubs? The surround on my tub is 5' long by just under 3' wide. and 5' tall all the way around.
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