major project

coming soon

major project

Postby archive » Wed Mar 31, 2004 2:28 am

From: David Burleson <ddburleson@b...>
Date: Tue Jan 9, 2001 5:01 am
Subject: major project

Ok, having digested numerous posts here, and being brave about posting
myself, I have a major project in the works.... I recently inherited a
house from my dad, and it's a residential brick, 3-bedroom domicile, but
the room I'm interested in is an added-on den, which is
wood-construction, appears to be one or one-and-a-quarter inch thick,
inside and outside, with pink fiberglass inside the wall. It sits on a
slab, and there are two huge paned picture windows (about 4' x 6')....I
know the windows will have to be boarded up or whatever, but I'm
interested in thoughts as to adding layers of material inside, to the
walls, for soundproofing....I'm interested in making this a
practice/recording studio, but not sure if its practical.... I guess I
want to know, how much for "how loud" and "how late at night"..... any
thoughts would be appreciated....
archive
 
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Joined: Sun Mar 21, 2004 6:26 am

Postby archive » Wed Mar 31, 2004 2:30 am

From: "Mucha, Kevin S (Kevin)" <kmucha@l...>
Date: Tue Jan 9, 2001 4:32 pm
Subject: RE: [acoustics] major project

David-
Depending on how loud you want will describe how much mass you will need to
add. Mass is good. Mass is your friend. I have a project studio in a
detached garage structure that I treated extensively. The garage structure
is wood framing with about an inch of wood sheathing and wood siding on the
exterior. It resides about 25 feet from my neighbor's bedroom window but I
can have a full band blaring away at 2:00 am without any problems. I did
this by using multiple layers and using z-channel spacers to decrease
transmission between the layers. This is what I did and perhaps you can
modify to your own use.

First I sealed up the window cavities and door by blocking it out with wood
framing and then 3/4" ply both inside and out. I then added 8 inches of
fiberglass to the entire structure. This does not help much in terms of
sound reduction but it does help reduce resonances. I then built an
interior frame structure that was detached from the existing structure by
about six inches. Under the footers I used roofing rubber to further reduce
transmission. The six inch space is also important to reduce transmission
(box in a box theory). I built this out of metal framing but probably would
do wood if I had to do it over again. Just a matter of ease in working with
the materials. On to this I added 5/8" drywall (gypsum). To that I added
z-channels. This is a material that can be found at any home improvement
store that builds an airspace between two layers. I then connected a layer
of 1/2" drywall to the channels. Make sure to seal every layer. If it
leaks air it leaks sound.

This construction has worked out better than I had hoped. I had
unscientifically tested it by brining in some large PA speaks and some high
powered amps to produce 130db of some dance grooves at one meter from the
speakers located in the center of the live room. I then went to my
neighbor's window inside (we're good friends and he had a vested interest
to make sure it worked!) and I could not hear anything. Car traffic was
even louder than any leakage ten feet outside of the building. I am also
under a landing path of O'Hare airport and have no problems cranking up a
U87 on delicate patches with no bleed from outside. I'm sure it could have
been done better but it worked very well and overall was not that expensive
to do.

Good luck,

-----Original Message-----
From: David Burleson [mailto:ddburleson@b...]
Sent: Monday, January 08, 2001 11:01 PM
To: acoustics@e????ups.com
Subject: [acoustics] major project

Ok, having digested numerous posts here, and being brave about posting
myself, I have a major project in the works.... I recently inherited a
house from my dad, and it's a residential brick, 3-bedroom domicile, but
the room I'm interested in is an added-on den, which is
wood-construction, appears to be one or one-and-a-quarter inch thick,
inside and outside, with pink fiberglass inside the wall. It sits on a
slab, and there are two huge paned picture windows (about 4' x 6')....I
know the windows will have to be boarded up or whatever, but I'm
interested in thoughts as to adding layers of material inside, to the
walls, for soundproofing....I'm interested in making this a
practice/recording studio, but not sure if its practical.... I guess I
want to know, how much for "how loud" and "how late at night"..... any
thoughts would be appreciated....
archive
 
Posts: 4697
Joined: Sun Mar 21, 2004 6:26 am

Postby archive » Wed Mar 31, 2004 2:35 am

From: "David Seidel" <W_David_Seidel@e...>
Date: Wed Jan 10, 2001 4:24 am
Subject: Re: [acoustics] major project

Remember, if you are in an earthquake zone: (all up and down the west coast
for example) what is heavy, is more likely to fall down and crush people and
things. Make sure you consult with your local building department, architect
or structural engineer.

D.

. . .Mass is good. Mass is your friend. . . .
archive
 
Posts: 4697
Joined: Sun Mar 21, 2004 6:26 am


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