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Wood Floor - Subfloor question jmyszka 08-10-2006
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Posted by jmyszka on August 10, 2006, 2:14 pm
I am planning on installing 5/8'' bamboo flooring in my three story
townhouse. I just ripped up the carpet and pad on the second floor and
discovered the subfloor material is not wood, but rather something that
resembles cement board used for tiling. When I pulled the nails from
the carpet tack strips out, some small pieces flaked off.

Does anyone have an idea of what material this subfloor might be? Is
my guess of cement board correct? I would take a piece of it to home
depot to compare, but just haven't had the time. If it is cement
board, am I correct in assuming that my nail-down job just became a
glue down job?

Thanks in advance,

Joe


Posted by on August 10, 2006, 8:57 pm
What the heck. Is it gray like cement board ? Cement board is not
strong enough to stand on without something, like a wood subfloor,
underneath it. I'd find out what it is and also what is underneath
it.

jmyszka wrote:
> I am planning on installing 5/8'' bamboo flooring in my three story
> townhouse. I just ripped up the carpet and pad on the second floor and
> discovered the subfloor material is not wood, but rather something that
> resembles cement board used for tiling. When I pulled the nails from
> the carpet tack strips out, some small pieces flaked off.
>
> Does anyone have an idea of what material this subfloor might be? Is
> my guess of cement board correct? I would take a piece of it to home
> depot to compare, but just haven't had the time. If it is cement
> board, am I correct in assuming that my nail-down job just became a
> glue down job?
>
> Thanks in advance,
>
> Joe


Posted by Joe on August 10, 2006, 10:38 pm

jmyszka wrote:
> I am planning on installing 5/8'' bamboo flooring in my three story
> townhouse. I just ripped up the carpet and pad on the second floor and
> discovered the subfloor material is not wood, but rather something that
> resembles cement board used for tiling.

Get rid of the crumble board. It would be huge mistake not to install
bamboo or any nice wood on a proper subfloor. By all means call
customer service at the flooring manufacturer for recommendations. They
will have the best advice you can get. You might get lucky and find a
nice solid plywood subfloor, and that is likely what the flooring
people would advise you to use. Good luck.

Joe


Posted by krw on August 11, 2006, 3:50 pm
jmyszka@sbcglobal.net says...
> I am planning on installing 5/8'' bamboo flooring in my three story
> townhouse. I just ripped up the carpet and pad on the second floor and
> discovered the subfloor material is not wood, but rather something that
> resembles cement board used for tiling. When I pulled the nails from
> the carpet tack strips out, some small pieces flaked off.

Could it be homasote and someone thought this would make the floor
quieter? Maybe there is plywood underneath? In any case, I think
it's got to go.

> Does anyone have an idea of what material this subfloor might be? Is
> my guess of cement board correct? I would take a piece of it to home
> depot to compare, but just haven't had the time. If it is cement
> board, am I correct in assuming that my nail-down job just became a
> glue down job?

No, I think you now have a "rip up" job first. Bummer, eh?

--
Keith

Posted by jmyszka on August 11, 2006, 5:04 pm
I just spoke with the builder, and they tell me that it is 2-3'' of
lightweight concrete for noise/fire prevention purposes (the garage is
on the first floor). My guess is that this means I now have a
glue-down job?

The concrete is fairly clean, I have swept and vaccumed. Do I need to
use concrete cleaner before I can glue?

Thanks,

Joe


krw wrote:
> jmyszka@sbcglobal.net says...
> > I am planning on installing 5/8'' bamboo flooring in my three story
> > townhouse. I just ripped up the carpet and pad on the second floor and
> > discovered the subfloor material is not wood, but rather something that
> > resembles cement board used for tiling. When I pulled the nails from
> > the carpet tack strips out, some small pieces flaked off.
>
> Could it be homasote and someone thought this would make the floor
> quieter? Maybe there is plywood underneath? In any case, I think
> it's got to go.
>
> > Does anyone have an idea of what material this subfloor might be? Is
> > my guess of cement board correct? I would take a piece of it to home
> > depot to compare, but just haven't had the time. If it is cement
> > board, am I correct in assuming that my nail-down job just became a
> > glue down job?
>
> No, I think you now have a "rip up" job first. Bummer, eh?
>
> --
> Keith


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