Humpy
Diamond Member
- Mar 3, 2011
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While that would probably be virtually 100% soundproof, a couple layers of soundproof drywall and some roxul insulation will do the trick. Even better is two separate walls with a void in between. Yes they will be connected at the ground and ceiling but it still provides a decent buffer. Something loud enough will still travel through but talking and general noise probably wont.
If you could find a material that will absorb sound and convert it 100% to heat, that could actually work very well too.
I think that material exists in rigid fiberglass insulation but it would have to be something like 80' thick to absorb 20hz at below ear damaging levels.
I was the GC on a music studio build where each room was built on individual 12" thick slabs floated on Sorbothane pucks. The only other connections between rooms were convoluted lengths of flexible duct and wiring that took an indirect route through another room first. I don't know if this would help with the OP's bathroom problem though, I think a medicinal solution may be more appropriate.