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Posted by marson on February 21, 2008, 8:17 pm
wrote:
> http://www.soundproofing.org/
>
> In general you want to block air exchange. Air caries sound very well.
> (Try opening your car's window as a train is going by.)
>
> Next you want weight. Heavy things (drywall lead sheets etc.) block
> sound well.
>
> You also want to prevent any direct solid connections. Stagger wall
> studs or use special isolation devices to keep the sound from traveling
> through the wall (remember the two cans on a string (well wire actuarially
> worked) you want to break the wire).
>
> Filling in wall cavities with sound absorbing materials (acoustical
> fiberglass bats) will do a little.
>
> Supply and drain lines are also sources of noise. Be sure to address
> them.
>
> --
> Joseph Meehan
>
> Dia 's Muire duit
>
>
>
> > I recently bought a tub surround from a local store and need advice on
> > how to properly insulate behind the walls. I have one exterior facing
> > wall and the rest are interior. I plan on installing the surround
> > direct to stud with green board (actually purple) in the space above
> > the walls. There is a bedroom on the other side of the tubs back wall
> > that I would like to insulate against noise. I also don't want the
> > wall facing the exterior wall to be too cold to the touch. Any
> > suggestions would be appreciated. Also on a separate topic has anyone
> > install one of these surrounds direct to studs? Are decking screws or
> > nails preferred to install the walls.
We insulate the exterior wall next to the tub with fiberglass. We
install a 6 mil poly vapor barrier, and cover this with plywood to
prevent it from flapping when, for example, people open and close
doors. Haven't heard that sound between the shower and the bathroom
is a big concern. All I can ever hear is the sound of water running.
Since the tub only contacts the studs in one spot basically, that
probably helps. I bet if you put resilient channel behind the rock
above the tub, and insulated the wall with fiberglass, that would be
sufficient. You aren't building a recording studio after all.
If you keep the caulking in order, regular galvanized deck screws will
outlast the fiberglass tub.
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