Acoustic sealant between studs and concrete? - AVS Forum | Home Theater Discussions And Reviews
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post #1 of 2 Old 12-21-2019, 08:38 AM - Thread Starter
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Acoustic sealant between studs and concrete?

I've learned that lumber and concrete floors are not perfectly straight.

1) When building 4-ft wall sections and assembling them together, should i put acoustical sealant between the vertical studs of each adjoining wall section? I try to pick the straightest studs for the ends, but there's frequently some tiny gap.

2) Should acoustical sealant be placed between the horizontal lumber of the wall sections and the concrete floor?

The discussions on this forum consistently address sealing between the drywall and the floor.
I anticipate that putting the sealant between the concrete and the lumber is a good idea. Using USG Sheetrock Acoustical Sealant.
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post #2 of 2 Old 12-21-2019, 10:23 AM
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be sure you are using lumber suitable for direct contact with concrete. Yes caulk is OK under framing, falls in the category of overkill but can't hurt. , still caulk the drywall to floor gap.

gaps between your vertical sections, I've always used a clamp and snug them together. Then run some screws to hold them tight together forever. remove clamp
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