"dpb" wrote in message ...
wrote:
On Thu, 09 Oct 2008 08:15:35 -0500, dpb wrote:

Ron wrote:
On Oct 8, 6:24 pm, dpb wrote:
jim evans wrote:
I'm about to hang one of the LED big screen TVs on my wall. To tidy
it up I decided to run the cables through the wall. When I cut a
hole
in the wall I discovered it was filled with insulation. It's an
inside wall. The master bath is on the other side of the wall. Why
is an inside wall insulated?
Minimal amount of noise reduction

--
A lot of noise reduction.
Not really only from fiberglass insulation unless also did something
about separating studs, etc., ...

It is a damper to prevent the drywall from acting as a soundboard.

But if the rock is mounted on the the opposite sides of the studs w/o
isolation it still transmits.

I'm not saying it doesn't have some benefit and it depends greatly on how
much but a typical exterior wall cavity w/ the air volume and uncompressed
batt won't make a tremendous difference. If they did put in extra and
took some extra steps it can...


We insulated our half bath walls with fiberglass. It doesn't help much with
noise. It might keep a full bath warmer after a shower though.