R-Value of Roxul SafeNSound?
Does anyone know how the soundproofing SAFENSOUND product compares to the regular comfortbatt from Roxul?
Their site says:
“Roxul Safe’n’Sound is designed specifically for one purpose – soundproofing. It is not intended for thermal applications like insulating exterior walls or attics. Why? The higher density that makes it an excellent sound barrier actually compromises its ability to prevent heat loss. So if you’re objective is energy savings, choose Roxul ComfortBatt®. For a quiet home, Roxul Safe’n’Sound is the right choice. “
However if density compromises the R value, wouldn’t the ComfortBOARD be even lower R-value (the harder stuff used for exterior insulation). The comfortboard is rated at R4 per inch whereas the batt is R4.18 per inch. Makes me think the Safe’n’Sound is in the 4 to 4.18 range? Could it be lower than 4?
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