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lost 07-10-2007 11:24 AM

engineered wood floor
 
I am putting BR 1-11 6" engineered floor over about 700 sqf. in my house. The planks are 5/16 thick. Should I glue the wood to the concrete or use a pad under the wood?

I am looking for opinions of someone who has done this before. No one can tell me the best way to do it.

Thanks in advance

KUIPORNG 07-10-2007 01:04 PM

I have someone did similar on my condo few years back... he did a great job and what we did is, putting underlayment pad then glue the planks and let the floor float as a whole... I don't like gluing on concrete because by any chance future removal is a nightmare and I don't really see a need for gluing it... assume you have a pretty level surface... one good reason of underlayment is it can hide minor (very minor) rough sufaces... whereas gluing... you may have a piece pop up and unable to lay it untill you fix the surface to perfection...

slakker 07-10-2007 01:19 PM

I did 450 square feet with acoustic dampening foam underlay in a floating installation. I'm not sure if all engineered floors can be done this way, but had asked the distributor before buying to ensure.

But I didn't put it direct on concrete, I put down dricore first.

troubleseeker 07-10-2007 10:07 PM

Although I personally am not a fan of floating floors, it would be my choice here. I have seen way to many problems with wood glued directly to concrete, both engineered products and real wood, all installed by professional flooring companies. We will no longer provide glue down on concrete for customers. If they insist on it, we let them handle the flooring directly.

weekender62 09-25-2007 04:23 PM

What kind of problems have you seen with wood floors glued directly to concrete. I'm getting ready to glue some engineered wood to my concrete which is very flat, and there is no moisture problem.
Thanks for any input.

Floorwizard 09-25-2007 09:38 PM

check the specs on gluedown install from the manufacturer, then do a moisture test.
there are many types of tests out there.

I also recommend floating over a moisture barrier.
Just cheap insurance.

slakker 09-26-2007 01:10 AM

Quote:

Originally Posted by weekender62 (Post 64736)
What kind of problems have you seen with wood floors glued directly to concrete. I'm getting ready to glue some engineered wood to my concrete which is very flat, and there is no moisture problem.
Thanks for any input.

I'd double check the specs of the flooring product... concrete isn't waterproof and even if there's no visible water, it's still wicks moisture from the ground below. This moisture is usually enough to wreck some wood flooring, engineered or otherwise.

Floorwizard 09-30-2007 01:51 PM

slakker is right.

flooring dude 10-01-2007 07:55 PM

Quote:

Originally Posted by lost (Post 52380)
I am putting BR 1-11 6" engineered floor over about 700 sqf. in my house. The planks are 5/16 thick. Should I glue the wood to the concrete or use a pad under the wood?

I am looking for opinions of someone who has done this before. No one can tell me the best way to do it.

Thanks in advance


If the manufacturer allows either type of installation, then it is matter of preference. With floating floors the sound difference is the biggest issue, regardless of what underlay you use it still sounds different than glue down.
I do agree it is a nightmare to remove glue down.

Zoomingo 10-09-2007 04:45 PM

I would recommend floating the floor, if it is the type of engineered that allows it. Any time you glue a floor to concrete or nail to a subfloor, you risk the chance of the house shifting and creating "cracks" in the floor. With a hardwood that you can sand and finish, typically not a problem...all you have to do is sand it down, fill it in with a filler, stain and finish it. Not so with an engineered...once it's down (glued or nail) you will have to replace it to fix the cracks. You can buy fillers for this type of floor but I am not a big fan of filler on engineered floors. You typically can't sand and finish any prefinished flooring because of the amount of urethane.

My recommendation...if you can float it, float it.

Jason

flooring dude 10-09-2007 07:16 PM

Quote:

Originally Posted by Zoomingo (Post 67293)
I would recommend floating the floor, if it is the type of engineered that allows it. Any time you glue a floor to concrete or nail to a subfloor, you risk the chance of the house shifting and creating "cracks" in the floor. With a hardwood that you can sand and finish, typically not a problem...all you have to do is sand it down, fill it in with a filler, stain and finish it. Not so with an engineered...once it's down (glued or nail) you will have to replace it to fix the cracks. You can buy fillers for this type of floor but I am not a big fan of filler on engineered floors. You typically can't sand and finish any prefinished flooring because of the amount of urethane.

My recommendation...if you can float it, float it.

Jason

This is not true, with most engineered hardwood you can sand and refinish, or at the very least screen and urethane.

Zoomingo 10-09-2007 08:55 PM

True...you can sand and finish engineered but it needs to be done by a professional, not a diy. This type of floor, when sanding, can be easily nicked and cause more harm than good. On top of that, and definitely not that it would need it, but it shouldn't be sanded more than a couple times. With that said, if your a diy, I wouldn't recommend sanding an engineered on your own unless you really know what your doing.

Jason

ltcobretti 10-10-2007 02:27 PM

Putting the wood directly on the concrete will almost definately void the product's warranty. Also, excessive moisture will ruin wood floors, although the engineered will do better. Go with the moisture barrier ;) - I agree on floating it as well.

Floorwizard 10-11-2007 10:49 PM

Sounds like floating it is the answer.

Quote:

you can sand and finish engineered but it needs to be done by a professional, not a diy. This type of floor, when sanding, can be easily nicked and cause more harm than good.
How come an engineered floor can be more easily damaged?

Quote:

I wouldn't recommend sanding an engineered on your own unless you really know what your doing.
It would probably be a good idea to also state that it is not recommended to sand a solid wood floor unless you know what you are doing as well.
I believe they are both equal in this area.


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