This should help keep the sound from traveling
under the walls, and also reduce the vibration of the walls when
sound hits them. I spoke with a couple of DIYers who thought it
was probably a waste of time, and that it wouldn't do any good.
Nonetheless, I decided to give it a shot.
I was looking for Owens Corning Quiet Zone acoustic caulk, but
none of the stores I checked carry it. I ended up going with a
silicon caulk from Lowe's. Some parts of the bottom plate needed
quite a bit of caulk to seal the gap in places where the board
was bowed a bit. Other spots were tight and required very little
caulk to seal. It took about 4 tubes of caulk and about an hour
of my time to seal all the walls in the basement.
Not sure if I'd have noticed the difference, but I'm glad I went
ahead and did it!
Additional soundproofing resources
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