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Concrete Slab Glue Down Vapor Barrier?

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Concrete Slab Glue Down Vapor Barrier? Mark 07-11-2006
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Posted by Mark on July 11, 2006, 10:12 am
I need some guidance from the group. I have an existing slab on grade
and I'm hoping to install engineered wood flooring. Most likely glue
down. I received some advice from an installer to glue down a vapor
barrier underlayment first then glue the wood flooring to the vapor
barrier. Sounded strange to me. He said there was flooring underlayment

product intended for the job....but I have not found anything yet. Any
suggestions?
thanks
Mark


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Posted by Just mee on July 11, 2006, 11:12 am
There is NO glue down engineered wood flooring for slabs.

Its a floating floor...



>I need some guidance from the group. I have an existing slab on grade
> and I'm hoping to install engineered wood flooring. Most likely glue
> down. I received some advice from an installer to glue down a vapor
> barrier underlayment first then glue the wood flooring to the vapor
> barrier. Sounded strange to me. He said there was flooring underlayment
>
> product intended for the job....but I have not found anything yet. Any
> suggestions?
> thanks
> Mark
>



Posted by MDT at Paragon Home Inspection on July 11, 2006, 11:45 am
First step: have you ascertained that the slab is suitable for this
application?

For example the manufacturers of engineered flooring designed for
adhesive application to concrete slabs ("glue-down" floors)
generally recommend that these not be installed to a slab unless it has
a *measured year-around* moisture content below 4-5% (see the
manufacturer's specs for the specific product you are considering),
which renders many slabs at or below grade unsuitiable for this floring
method.

Michael Thomas
Paragon Home Inspection, LLC
Chicago, IL
mdtATparagoninspectsDOT


Posted by Edwin Pawlowski on July 11, 2006, 11:54 am

>I need some guidance from the group. I have an existing slab on grade
> and I'm hoping to install engineered wood flooring. Most likely glue
> down. I received some advice from an installer to glue down a vapor
> barrier underlayment first then glue the wood flooring to the vapor
> barrier. Sounded strange to me. He said there was flooring underlayment
>
> product intended for the job....but I have not found anything yet. Any
> suggestions?

Do a floating floor. Glue down on concrete is risky. Yes, you need a
barrier.

I used www.mannington.com and it is very good after 3 years.



Posted by James \"Cubby\" Culbertson on July 11, 2006, 8:58 pm

>I need some guidance from the group. I have an existing slab on grade
> and I'm hoping to install engineered wood flooring. Most likely glue
> down. I received some advice from an installer to glue down a vapor
> barrier underlayment first then glue the wood flooring to the vapor
> barrier. Sounded strange to me. He said there was flooring underlayment
>
> product intended for the job....but I have not found anything yet. Any
> suggestions?
> thanks
> Mark
>

I glued solid floor down. I didn't use a vapor barrier as my concrete was
dry and I live in an arid part of the world (plus the suppliers said not to
bother due to my location). Anyway, Bostic's makes a membrane that you
trowel on before gluing etc... I believe it's called "Bostic's MVP".
Cheers,
cc



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