Mineral wool batts open to interior?
I have a basement split into two, half finished and half not separated by an interior wall. Home theater on one side, all mechanicals on the unfinshed side along with a workout area and storage. I’m not looking to sound proof, as noise isn’t really that bad between the two, even a decrease of 5% just to dull it slightly when the furnace or well pump is running wouldn’t hurt. I have several bags of safe n sound batts that I’d like to just place in the open studs as I don’t have any other use for them. Can I do that and not drywall off the other side, or do the mineral wool batts have to be covered on both sides? (I don’t know if the fibers can float around like fiber glass does even after it’s installed; mineral wool after installing and not being touched seems stable compared to fiber glass and isn’t covered in the rim joists on the interior) If they do need to be covered, can I use something other than drywall to cover them, something thinner?
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