Would it be a good idea to put a concrete sealer on the concrete slab before putting on the hardwood flooring?
Sunday, May 16th, 2010 at
10:45 am
My condo is on the bottom floor. I'm changing the carpet into hardwood flooring. I have a concrete slab under the carpet. I was wondering if it would be a good idea to put some type of concrete sealer before putting on the engineered hardwood flooring and underlayment? Or is the underlayment enough to stop the moisture?
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US $.99



I would do that and also lay down a vapor barrier.
Hi JD
I think I would contact the maker of your engineered hardwood. They would know better than anyone else. Better safe than sorry.
I’m going to assume this is not a basement but a slab floor. It will depend on if there are issues currently with dampness as to what you do here. Sealing it should not hurt in any case. a 6 or 7 lb underlayment will serve you greatly. But for an engineered floor I strongly suggest Dricore.
http://www.dricore.com/en/eIndex.aspx
To produce similar results to Dricore less expensivly use Delta-FL it’s 50 cents a sq foot. then normal underlayment.
http://www.cosella-dorken.com/bvf-ca-en/products/foundation_residential/floor/products/fl.php