I have a new Ryland Home that I having a noise issue with the
shower/tub within my master bath. The tub/shower combo is partly on a
wall that faces a large open area that is open to the level below. So
when the shower is on it can be heard through out the entire house.
If you are watching TV in the living space below it is so loud it
requires turning up the volume when the shower is in use. Not
surprisingly, we have a fiberglass shower/tub surround so I am
assuming the water hitting the bottom of the tub is echoing in the
large area between the floor and the surround. I don't believe it is
the plumbling noise issue as almost all of the plumbing runs in the
house are made with some sort of plastic tubing. I would like to
remedy this by insulating this open area between the surround and the
floor but am curious what insulation to use? Should I use similar
fiberglass insulation used to insulate the exterior of my home, or
should a try to cut foam panels and try to fit them between the studs
of the outfacing wall via the access panel used to access the back of
the tub/shower plumbing fixtures? I am concerned about using foam (in
a can) as it may expand and crack the drywall or tub surround or is
that my only option?
Any suggestions would be greatly appreciated.
You'll be disappointed with the performance of fiberglass I think.
Sound-deadening is a complex/difficult issue.
Some info here:
Frequently, the water from above comes into the main drain by
way of a "T". So one of the noises ends up being that water coming
down from above and striking the inner face of the drain, often a 3
or 4 inch line. Just something like that can account for a lot of noise.
So if you're ever doing a plumbing redo, it's nicer to come down at
an angle, and the transition in from the side so there's no flow striking
the inner surface. Which I'll bet is accounting for some of your noise
when the water drains during a shower.
<< should I try to cut foam panels and try to fit them between the studs of the
outfacing wall via the access panel used to access the back of the tub/shower
plumbing fixtures? >>
That's by far your best option. Urethane foam is a dandy sound deadening
material. To prove it, hold a foam cushion in front of a high output speaker
and note how much the sound is attenuated. Rubber based foams are not as
effective. Urethanes are commonly used for automotive sound deadening where
minimal weight is also required. HTH
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