Ask Your Question

Angie's List Answers is the trusted spot to ask home improvement and health questions and get answers from service companies, health providers and consumers. For ratings and reviews on companies in your area, search Angie's List.

Top 30 Days Experts
Rank Leader Points*
1 kstreett 240
2 Guest_9020487 110
3 Guest_9190926 105
4 GoldenKid 100
5 ahowell 95
6 KnowledgeBase 95
7 skbloom 80
8 Guest_98024861 70
9 Guest_9311297 70
10 Guest_9400529 70

*Updates every 4 hours

Browse Projects By Category

Question DetailsAsked on 1/4/2015

Can pour self leveling concrete over a large areas of ceramic tile???

We have unlevel areas of our monolithic slab floor that have 14x14 ceramic tiles.We want to put down wood flooring over it once it's level.

Do you have the same question? Follow this Question

Voted Best Answer

As you can guess, self-levelling grout does not bond well to tile - though there are textured epoxy products out there designed to act as a bonding agent. Personally, I would not do this with a self-levelling coating - just too much chance of it popping up and bubbling your floor. The only time I would overlay a tile for a fastened-down (as opposed to floating) flooring product would be with an overlay slab - mesh reinforced 3 to 4 inch concrete overlay, which would then of course reduce your headroom (perhaps unacceptably or contrary to code) and of course causes floor step-up issues at any adjacent rooms.

Don't forget you also need a very good, edge-sealed vapor barrier under the wood/engineered/laminate flooring, because concrete/tile floors transmit a lot of moisture from the underlying soil to the room, and very commonly cause mildew/mold/buckling issues under overlying flooring.

For my money - I would spend the money (anywhere from $0.30 - 2.50/SF depending on how put down and how well it is bonded) to have the tile removed, or go with a floating flooring like a laminate that can go over tile. Over a concrete on-grade or basement slab, I would recommend a snap vinyl flooring made entirely of laminate with no wood or paticle board at all, to minimize the potential moisture issues - many of them look almost like real wood, commonly have the same type of clear finish over them to further enhance that look, are much cheapaer and far more durable.

You can find a few more comments on flooring over concrete slabs in the Home > Flooring link in Browse Projects, at lower left. Here are a few of those links that appear to be pretty much right along the line of what you are asking:

Answered 5 years ago by LCD

Related Questions

Terms Of Use
Privacy Policy