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Ted White

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  1. This is a very popular solution because it's very comprehensive. You damp the subfloor where the vibration starts. You would not use a roller, and instead use a Speedload. Drywall strips is pretty fast if you leave the drywall strips 1/4" narrower than the joist opening. They fit right up there quickly.
  2. If you have impact noise, you might consider the following:
  3. Membrane would be used on top of the floor, not from below
  4. I later noticed this, but by then there were already other replies... I did report that post as well as another as SPAM, but no reaction from mods.
  5. Decoupling the large mass is key for LF isolation. The primary low frequency resonance point of the new partition must be significantly below the potential sound waves it will encounter in order to have a shot at containing them.
  6. Agreed. The biggest driver here is mass. The problem with factory-damped drywall is it's a lot of $$ relative to the final mass. Field-damped drywall uses double 5/8" resulting in a much less expensive and more massive result. Field apply for higher performance at a lower cost.
  7. Consider double 5/8" drywall and a field application of damping compound. The resulting wall / ceiling will be more massive and less than 1/2 the cost.
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