Then we get for the NRC rating. That score is all about absorption, so I see it generally while in the context of acoustic Regulate as an alternative to seem attenuation/blocking. It can be, certainly, popular to work with mineral wool batts to create reasonably priced acoustic Management panels. #4 https://rockwool-insulation70368.articlesblogger.com/57718385/5-tips-about-rubber-insulation-you-can-use-today