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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 marson on January 10, 2007, 6:16 pm
I am building a house for a customer who is planning to do his own
hardwood flooring installation (above grade, installed on 3/4"
plywood.) He recently informed my that he intends to install a layer
of 1/4" cork, then a layer of 1/2" plywood, then his hardwood strip
flooring (nail down).

I have two concerns about this: first, wouldn't the fasteners that you
use, both to fasten the 1/2" plywood and then to staple down the
hardwood, penetrate into the subfloor and negate the soundproofing
qualities of the cork?

Second, what do you think of nailing hardwood flooring into 1/2"
plywood? I am somewhat skeptical about the nail holding ability of
just 1/2" plywood.

Anyone done this or know about this?


Posted by Don on January 10, 2007, 7:37 pm
use 3" nails and go through the whole mess.



>I am building a house for a customer who is planning to do his own
> hardwood flooring installation (above grade, installed on 3/4"
> plywood.) He recently informed my that he intends to install a layer
> of 1/4" cork, then a layer of 1/2" plywood, then his hardwood strip
> flooring (nail down).
>
> I have two concerns about this: first, wouldn't the fasteners that you
> use, both to fasten the 1/2" plywood and then to staple down the
> hardwood, penetrate into the subfloor and negate the soundproofing
> qualities of the cork?
>
> Second, what do you think of nailing hardwood flooring into 1/2"
> plywood? I am somewhat skeptical about the nail holding ability of
> just 1/2" plywood.
>
> Anyone done this or know about this?
>



Posted by RCW on January 11, 2007, 8:56 am
wrote:

>use 3" nails and go through the whole mess.

I suspect the sound will travel very nicely through all the nails.

Would you consider using a floating floor - Pergo type?

Richard

Posted by Don on January 11, 2007, 2:00 pm

> wrote:
>
>>use 3" nails and go through the whole mess.
>
> I suspect the sound will travel very nicely through all the nails.

How much noise are you talking about?

> Would you consider using a floating floor - Pergo type?
>
> Richard



Posted by Kris Krieger on January 11, 2007, 6:03 pm

> wrote:
>
>>use 3" nails and go through the whole mess.
>
> I suspect the sound will travel very nicely through all the nails.
>
> Would you consider using a floating floor - Pergo type?
>
> Richard
>

Aren't modern adhesives up to this sort of job? I read, for example, that
wood glue is stronger than wood itself. So it seems to me (not that I know
much of anything...) that one could easily question using nails in the
first place...?

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