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soundproofing with a layer of cork under hardwood.

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soundproofing with a layer of cork under hardwood. marson 01-10-2007
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Posted by Don on January 11, 2007, 8:43 pm
"Noral Stewart"> wrote
> For best results he needs to also isolate the ceiling from structure and
> install sound absorptive material in the cavity.


There ya go.
Install a suspended acoustical ceiling on the 1st floor and blow the cavity
full of insulation.



AppliancePartsPros.com, Inc.
Posted by marson on January 11, 2007, 9:07 pm
yeah, i suggested resilient channel and sound batts as a much cheaper
way to go (he is trying to save money) and perfectly adequete for a
residential situation. But he has been doing internet research and has
been told by companies that sell various fancy soundproofing products
that resilient channel or dropped ceilings aren't the most effective
way to soundproof. Which is true if you were building a recording
studio, but for a house?

Oh well, he is going to be putting in 2000 sq ft of wood, after laying
down cork (now it's acoustical glue under 1/2" plywood) and 65 sheets
of 1/2" plywood. He doesn't have a clue of how much work he is up
against. I get to sit back and say "I told you so".

Someone suggested spraying an inch or so of foam (either icynene or two
part urethane) onto the bottom of the subfloor. Comments?


Posted by Don on January 11, 2007, 9:23 pm
"marson"> wrote
> Oh well, he is going to be putting in 2000 sq ft of wood, after laying
> down cork (now it's acoustical glue under 1/2" plywood) and 65 sheets
> of 1/2" plywood. He doesn't have a clue of how much work he is up
> against. I get to sit back and say "I told you so".

How thick is the cork and how is it packaged?
Sheets, rolls?
Why cork as opposed to say styrofoam?



Posted by Goedjn on January 12, 2007, 12:24 pm

>yeah, i suggested resilient channel and sound batts as a much cheaper
>way to go (he is trying to save money) and perfectly adequete for a
>residential situation. But he has been doing internet research and has
>been told by companies that sell various fancy soundproofing products
>that resilient channel or dropped ceilings aren't the most effective
>way to soundproof. Which is true if you were building a recording
>studio, but for a house?
>
>Oh well, he is going to be putting in 2000 sq ft of wood, after laying
>down cork (now it's acoustical glue under 1/2" plywood) and 65 sheets
>of 1/2" plywood. He doesn't have a clue of how much work he is up
>against. I get to sit back and say "I told you so".
>
>Someone suggested spraying an inch or so of foam (either icynene or two
>part urethane) onto the bottom of the subfloor. Comments?

That's one way to make sure you've plugged all the air gaps.



Posted by M&S on January 12, 2007, 6:47 pm
marson wrote:
> yeah, i suggested resilient channel and sound batts as a much cheaper
> way to go (he is trying to save money) and perfectly adequete for a
> residential situation. But he has been doing internet research and has
> been told by companies that sell various fancy soundproofing products
> that resilient channel or dropped ceilings aren't the most effective
> way to soundproof. Which is true if you were building a recording
> studio, but for a house?
>
> Oh well, he is going to be putting in 2000 sq ft of wood, after laying
> down cork (now it's acoustical glue under 1/2" plywood) and 65 sheets
> of 1/2" plywood. He doesn't have a clue of how much work he is up
> against. I get to sit back and say "I told you so".
>
> Someone suggested spraying an inch or so of foam (either icynene or two
> part urethane) onto the bottom of the subfloor. Comments?
>

Hey Marson,
May be OT or not, but how is the double walled house you asked about a
while back going? I remember you were asking about how to seal VB to
windows in DW construction and have many times wondered how that project
went/is going?

Sounds like you get a lot of customers similar to what we deal with hehe.

Mark


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