[[email protected]]

Hi, I live is a side by side Condo complex that doesn't have good sound
insulation between units. Is there any way to achieve around a 55-60
STC for the vertical walls between my unit and the other two without
having to replace the drywall with something like the QuietRock system?
I looked at Fomo Foam but can't find any reviews of it and what kind
of STC it would provide me. Thanks, Danno

[Scott Dorsey]

In article , wrote:
Hi, I live is a side by side Condo complex that doesn't have good sound
insulation between units. Is there any way to achieve around a 55-60
STC for the vertical walls between my unit and the other two without
having to replace the drywall with something like the QuietRock system?
I looked at Fomo Foam but can't find any reviews of it and what kind
of STC it would provide me. Thanks, Danno

It's easy to get high frequency isolation.

If you want low frequency isolation, you need to float the room to keep
sound from being coupled through the building structure. That's the part
that isn't cheap.
--scott
--
"C'est un Nagra. C'est suisse, et tres, tres precis."

[Richard Crowley]

wrote ...
Hi, I live is a side by side Condo complex that doesn't have good sound
insulation between units. Is there any way to achieve around a 55-60 STC
for the vertical walls between my unit and the other two without having to
replace the drywall with something like the QuietRock system? I looked at
Fomo Foam but can't find any reviews of it and what kind of STC it would
provide me. Thanks, Danno

Rigid (or semi-rigid) foam is fine for thermal insulation,
but any rigidity will just conduct sound from one wall to
the other. If you want to install insulation into an existing
wall cavity, I would consider the fluffy kind that is "blown"
in through a large pipe. This is the kind typically used for
ceiling insulation in attic spaces, etc. But not clear whether
the sound transmission reduction would be worth the
expense??

The big question is whether your "parti-wall" is double-
stud or single. If it is single, then added insulation will
likely be far less effective because the walls are hard-
coupled together every 18 inches by the studs.

But there's really no magic bullet. Non of the "high-tech"
solutions are a good substitute for mass and distance.

[[email protected]]

Richard Crowley wrote:
wrote ...
Hi, I live is a side by side Condo complex that doesn't have good sound
insulation between units. Is there any way to achieve around a 55-60 STC
for the vertical walls between my unit and the other two without having to
replace the drywall with something like the QuietRock system? I looked at
Fomo Foam but can't find any reviews of it and what kind of STC it would
provide me. Thanks, Danno

Rigid (or semi-rigid) foam is fine for thermal insulation,
but any rigidity will just conduct sound from one wall to
the other. If you want to install insulation into an existing
wall cavity, I would consider the fluffy kind that is "blown"
in through a large pipe. This is the kind typically used for
ceiling insulation in attic spaces, etc. But not clear whether
the sound transmission reduction would be worth the
expense??

The big question is whether your "parti-wall" is double-
stud or single. If it is single, then added insulation will
likely be far less effective because the walls are hard-
coupled together every 18 inches by the studs.

But there's really no magic bullet. Non of the "high-tech"
solutions are a good substitute for mass and distance.



I think I will just wait until I move then (just one more reason now).

[Arny Krueger]

wrote in message

Hi, I live is a side by side Condo complex that doesn't
have good sound insulation between units. Is there any
way to achieve around a 55-60 STC for the vertical walls
between my unit and the other two without having to
replace the drywall with something like the QuietRock
system?


I looked at Fomo Foam but can't find any reviews
of it and what kind of STC it would provide me.

What I see at http://www.fomofoam.com/ is rigid polyurethane foam, both
do-it-yoursel components delivered in disposable pressure vessels. Rigid
polyurethane foam is thermal insulation, not acoustic treatment. It probably
has some residual acoustical effects, but that's not its strength.

[[email protected]]

Arny Krueger wrote:
wrote in message

Hi, I live is a side by side Condo complex that doesn't
have good sound insulation between units. Is there any
way to achieve around a 55-60 STC for the vertical walls
between my unit and the other two without having to
replace the drywall with something like the QuietRock
system?


I looked at Fomo Foam but can't find any reviews
of it and what kind of STC it would provide me.

What I see at http://www.fomofoam.com/ is rigid polyurethane foam, both
do-it-yoursel components delivered in disposable pressure vessels. Rigid
polyurethane foam is thermal insulation, not acoustic treatment. It probably
has some residual acoustical effects, but that's not its strength.



Do you think this http://www.fomofoam.com/Soundproofing.htm is B.S.?

[Richard Crowley]

wrote ...
Do you think this http://www.fomofoam.com/Soundproofing.htm is B.S.?

IF that stuff is really effective for sound absorbtion (which is
hard to believe, IMHO), then they have allowed some marketing
genius to turn their evidence into online gibberish. Much of the
prose on that page is laughable. Looks like it was written by
someone with no understanding of acoustics, or else it has
been "dumbed down" beyond recognition.

They even admit that rigid foam is not ideal for blocking sound...
"This foam is high-density foam, and is often not the most
economical soundproofing for between floors. Cellulose
insulation dense-packed between floors is suggested as
one excellent and economical solution..."

If it is the kind of two-part, chemical-reaction foam I've seen
and used in the past, it has no real acoustic value.

[Arny Krueger]

wrote in message

Arny Krueger wrote:
wrote in message

Hi, I live is a side by side Condo complex that doesn't
have good sound insulation between units. Is there any
way to achieve around a 55-60 STC for the vertical walls
between my unit and the other two without having to
replace the drywall with something like the QuietRock
system?


I looked at Fomo Foam but can't find any reviews
of it and what kind of STC it would provide me.

What I see at http://www.fomofoam.com/ is rigid
polyurethane foam, both do-it-yoursel components
delivered in disposable pressure vessels. Rigid
polyurethane foam is thermal insulation, not acoustic
treatment. It probably has some residual acoustical
effects, but that's not its strength.

Do you think this
http://www.fomofoam.com/Soundproofing.htm is B.S.?


Compare to this:

http://www.stcratings.com/assemblies.html

[Albert]

On Nov 15, 10:31 am, wrote:
Hi, I live is a side by side Condo complex that doesn't have good sound
insulation between units. Is there any way to achieve around a 55-60
STC for the vertical walls between my unit and the other two without
having to replace the drywall with something like the QuietRock system?

There is this stuff called Green Glue. You put another layer of
drywall on top of your existing wall with the Green Glue on the back.
I haven't used it personally but from things I've read it sounds like
it could be fairly effective. If you want more isolation, do 2 layers
of drywall with GG between each layer.

http://www.greengluecompany.com/

Albert

[Mogens V.]

Arny Krueger wrote:
wrote in message


Arny Krueger wrote:

wrote in message


Hi, I live is a side by side Condo complex that doesn't
have good sound insulation between units. Is there any
way to achieve around a 55-60 STC for the vertical walls
between my unit and the other two without having to
replace the drywall with something like the QuietRock
system?


I looked at Fomo Foam but can't find any reviews
of it and what kind of STC it would provide me.

What I see at http://www.fomofoam.com/ is rigid
polyurethane foam, both do-it-yoursel components
delivered in disposable pressure vessels. Rigid
polyurethane foam is thermal insulation, not acoustic
treatment. It probably has some residual acoustical
effects, but that's not its strength.

Do you think this
http://www.fomofoam.com/Soundproofing.htm is B.S.?



Compare to this:

http://www.stcratings.com/assemblies.html

Haven't got time to close read it, but AFAIR, the STC ratings are
sometimes said not to cover low enough frequencies for 'our' uses.
The GreenGlue company is one source of such comments.

--
Kind regards,
Mogens V.

[Mogens V.]

Albert wrote:
On Nov 15, 10:31 am, wrote:

Hi, I live is a side by side Condo complex that doesn't have good sound
insulation between units. Is there any way to achieve around a 55-60
STC for the vertical walls between my unit and the other two without
having to replace the drywall with something like the QuietRock system?


There is this stuff called Green Glue. You put another layer of
drywall on top of your existing wall with the Green Glue on the back.
I haven't used it personally but from things I've read it sounds like
it could be fairly effective. If you want more isolation, do 2 layers
of drywall with GG between each layer.

http://www.greengluecompany.com/

Yup, they provide lotsa detailed info, which seems scientifically and
practically valid. Before hitting a temp unemployment situation, I was
about to fix my ceiling problem (heel impact noise and bass goig
through) using this. Worth going through all their pages.

And worth searching this NG for references to these topics on
googlegroups; several good threads to poke.

--
Kind regards,
Mogens V.

[Tim Padrick]

"Mogens V." wrote in message
. dk...
Albert wrote:
On Nov 15, 10:31 am, wrote:

Hi, I live is a side by side Condo complex that doesn't have good sound
insulation between units. Is there any way to achieve around a 55-60
STC for the vertical walls between my unit and the other two without
having to replace the drywall with something like the QuietRock system?


There is this stuff called Green Glue. You put another layer of
drywall on top of your existing wall with the Green Glue on the back.
I haven't used it personally but from things I've read it sounds like
it could be fairly effective. If you want more isolation, do 2 layers
of drywall with GG between each layer.

http://www.greengluecompany.com/

Yup, they provide lotsa detailed info, which seems scientifically and
practically valid. Before hitting a temp unemployment situation, I was
about to fix my ceiling problem (heel impact noise and bass goig through)
using this. Worth going through all their pages.

And worth searching this NG for references to these topics on
googlegroups; several good threads to poke.

--
Kind regards,
Mogens V.


Absorber and insulator:
http://www.sm.com.sg/Absorption/Coustone/Coustone.htm

[Mogens V.]

Tim Padrick wrote:
"Mogens V." wrote in message
. dk...

Albert wrote:

On Nov 15, 10:31 am, wrote:


Hi, I live is a side by side Condo complex that doesn't have good sound
insulation between units. Is there any way to achieve around a 55-60
STC for the vertical walls between my unit and the other two without
having to replace the drywall with something like the QuietRock system?


There is this stuff called Green Glue. You put another layer of
drywall on top of your existing wall with the Green Glue on the back.
I haven't used it personally but from things I've read it sounds like
it could be fairly effective. If you want more isolation, do 2 layers
of drywall with GG between each layer.

http://www.greengluecompany.com/

Yup, they provide lotsa detailed info, which seems scientifically and
practically valid. Before hitting a temp unemployment situation, I was
about to fix my ceiling problem (heel impact noise and bass goig through)
using this. Worth going through all their pages.

And worth searching this NG for references to these topics on
googlegroups; several good threads to poke.

--
Kind regards,
Mogens V.



Absorber and insulator:
http://www.sm.com.sg/Absorption/Coustone/Coustone.htm

Very interesting product, thanks.

--
Kind regards,
Mogens V.

[Arny Krueger]

"Tim Padrick" wrote in message



Absorber and insulator:
http://www.sm.com.sg/Absorption/Coustone/Coustone.htm

Interesting stuff!

[Arny Krueger]

"Arny Krueger" wrote in message

"Tim Padrick" wrote in message



Absorber and insulator:
http://www.sm.com.sg/Absorption/Coustone/Coustone.htm

Interesting stuff!

Also on the list of interesting stuff:

http://www.tectum.com/

[trent]

On Nov 15, 2:31 pm, wrote:
Hi, I live is a side by side Condo complex that doesn't have good sound
insulation between units. Is there any way to achieve around a 55-60
STC for the vertical walls between my unit and the other two without
having to replace the drywall with something like the QuietRock system?
I looked at Fomo Foam but can't find any reviews of it and what kind
of STC it would provide me. Thanks, Danno

I tried the Sheetblock from aurelex and an additional 5/8" of
sheetrock.
It quieted normal speech and muffled raised voices, but didn't do much
for music especially the bass . The spaces are still coupled from the
floors
etc.; there's an air return channel in the corner and i don't know if
the
neighbors have one in the same spot or not. Save your money.