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How air-tight is Hemcrete® ?

April 26, 2017air-tight hemcrete®

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How air-tight is Hemcrete® ?

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A Because Hemcrete® is used to build monolithic walls, it is extremely air-tight and air leakage through the walls is negligible. The R-value for a 12″ wall is approximately 23.2. The R-value for a 20″ wall is approximately 40.