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joey44 01-04-2009 03:31 PM

floating floor boards over uneven tiles
I am intalling timber laminate floor boards and the room i am doing it in had half ceramic tiles and half carpet. I have removed the carpet and the tiles are still there and are quite hard to remove. I wanted to know is it possible to lay a double underlay on the concrete where the carpet was to make it he same level as the tiles, and then lay the floating floor boards over the whole floor?

Bud Cline 01-04-2009 03:52 PM

Remove the tiles it isn't that difficult. You can find a lot of reasons not to remove the tiles and one good reason to remove the tiles. The one good reason is so that your new floor installation will be successful.:)

joey44 01-04-2009 04:03 PM

ok so the answer to my question is???? no
And how do I remove the tiles so "easy"

Bud Cline 01-04-2009 04:10 PM

A hammer and a chisel will remove the tiles.
An air powered floor chisel will remove the tiles.
An electric chipping hammer will remove the tiles.
An electric floor scraper will remove the tiles.

onlinehandyman 01-04-2009 08:37 PM

Normally you can install the laminate over tile, but unfortunately not in this situation - you will need a hammer or a chisel or whatever works. We used to use a tool used for roofing that looked like an ice chopper to scrap the tiles up from the side.

HardwoodGuy 01-05-2009 06:01 PM

I'm not sure if I follow this correctly, but I'm thinking you want to add a subfloor so it comes up to the height of the tile then install a floating floor over that? It's been done, but if you use plywood for the carpeted area, once the floating floor is installed it may become noticeable in sound under foot.

In other words, some may notice it while others will not. If that's important to you I would install some concrete backer board for a corresponding sound effect.

As far as tile removal. I've never considered it being easy! Some thoughts...

Bud Cline 01-05-2009 06:10 PM


I would install some concrete backer board for a corresponding sound effect.
There is no feasible way to install cement board over concrete.:)

HardwoodGuy 01-05-2009 06:29 PM

Really? Why not? Can't the backerboard be attached with tapcons?

Bud Cline 01-05-2009 08:58 PM

The backerboard needs to be set in thinset. Tapcons could be used but what about the spoils that erupt from the hole when drilling through everything? Where are those spoils going to go especially with wet thinset down there to collect it. This will result in an eruption of the board. If two boards are necessary then you have double trouble. Cement board is irregular enough on its own without drawing it into wet thinset with Tapcons that are erupting spoils and forcing the boards upward at each fastener location. The surface could end up as smooth as a golf ball. This entire theory has been bandied around Internet forums for ten years now and the conclusion is installing cement boards to concrete is a losing proposition.:)

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