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Window soundproofing Kevin 03-30-2008
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Posted by Glenn on March 31, 2008, 11:06 am

> wrote in
>
> > So it would appear going from 1/8" to 1/4" should
> > reduce noise by 6db.
>
> I built 2 radio stations. Stopping sound through the
> glass is simple. Nothing fancy like different
> thicknesses and all that stuff. Any glass will work.
> Just use 2 panes and space them uneven as in maybe 1
> inch apart on the top and 3 inches on the bottom. The
> sound will lose itself in there bouncing around. You
> still need to double stud the walls etc though. I
> know
> this works.

Glenn,
What was the frame material?
T

1 X door jamb material. Sound through there is
negligible .

The walls, we used 2 X 3 KD studs 16" oc but in 2
separate walls with the studs on the facing wall in the
center of the other studs. We did use a 2 X 6 plate
deciding that sound was negligible too. We did
insulate both 16" stud widths.




Posted by tbasc@bellsouth.net on March 31, 2008, 12:28 pm
>
>
>
>
> > wrote in
>
> > > So it would appear going from 1/8" to 1/4" should
> > > reduce noise by 6db.
>
> > I built 2 radio stations. Stopping sound through the
> > glass is simple. Nothing fancy like different
> > thicknesses and all that stuff. Any glass will work.
> > Just use 2 panes and space them uneven as in maybe 1
> > inch apart on the top and 3 inches on the bottom. The
> > sound will lose itself in there bouncing around. You
> > still need to double stud the walls etc though. I
> > know
> > this works.
>
> Glenn,
> What was the frame material?
> T
>
> 1 X door jamb material. =A0Sound through there is
> negligible .
>
> The walls, we used 2 X 3 KD studs 16" oc but in 2
> separate walls with the studs on the facing wall in the
> center of the other studs. =A0We did use a 2 X 6 plate
> deciding that sound was negligible too. =A0We did
> insulate both 16" stud widths.

Thanks, I assume you sealed plates.
T

Posted by RicodJour on March 31, 2008, 9:14 am
>
> I built 2 radio stations. Stopping sound through the
> glass is simple. Nothing fancy like different
> thicknesses and all that stuff. Any glass will work.
> Just use 2 panes and space them uneven as in maybe 1
> inch apart on the top and 3 inches on the bottom. The
> sound will lose itself in there bouncing around. You
> still need to double stud the walls etc though. I know
> this works.

What sort of advice is that, Glenn? Simple and effective...? You're
ruining our reputation! ;)

To the OP: Sound transmission follows different routes. To keep
sound in use absorptive materials (think eggcrate foam on the walls of
a studio), mass (dense wall materials) and construction intended to
prevent structure borne sound (resilient channel and staggered
studs). It's unclear whether your window concern is to keep inside
noise in or outside noise out. Since your question is just about the
window, you could apply a solar film to the inside pane of glass which
would change its resonant frequencies, _slightly_ increase its mass,
and make the surface a bit softer and therefore more absorptive.
Glenn's method is good, but it sounds like you're intending to use a
factory made window for a reason (looks?, ventilation when the theater
isn't in use?), you'd have to use two windows (four panes of glass and
three air spaces). If it's a picture window for light and view you
could build the window yourself incline one pane of glass and seal the
unit to prevent dust. Depending on your location and climate
conditions it might be better to have an insulated unit made for the
interior, incline it a bit, and add a thicker pane of glass on the
outside.

R

Posted by S. Barker on March 30, 2008, 6:31 pm
do you live next to the airport or a drag strip? and just how deep IS this
crawl space? Or did you mean to say basement?


s


> I'm constructing a room in the crawl space of my house, that will be used
> in
> part for a home theather, and I want to make it as soundproof as possible.
> This room will have one 5040 window. Home Depot tells me that they can
> supply windows that have 3/16" or 1/4" thick panes, as opposed to the
> normal
> 1/8". I'm wondering if any one has experience or information as to the
> soundproofing effectivesness of these thicker windows?
>
> One alternative I have considered is to frame the window opening using
> 2x4's
> in the 2x6 wall and installing a regular 1/8 pane window as normal. Then
> installing a second window on the inside of the 2x4 opening. this would
> leave an approx 2" airspace between the two windows, which could present a
> cleaning problem with the inevitable collection of dust in this space,
> (the
> windows are going to be sliders), and it might look a little weird. If the
> thicker panes are substantially effective, I think I'd would rather go
> that
> route because of the normal appearance.
>
> I'd apprecite any comments on the thicker pane windows or the double
> window
> arrangement, and any other suggestions as to how to make this window as
> soundprrof as possible.
>
> TIA
> Kevin
>
>
>
>
>
>
>
>



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