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Is there a direct correlation between the Rw and Dncw tested values for ceilings?

April 26, 2017ceilings correlation RW tested values

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Is there a direct correlation between the Rw and Dncw tested values for ceilings?

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No. Although there are some empirically derived relationships between the two different values for the same product, there are no theoretically based methods for deriving one value from the other. The overall process is far too complicated and it is certainly NOT the case that Dncw = 2 x Rw!