DIY Home Improvement Forum banner

floating floor boards over uneven tiles

8K views 8 replies 4 participants last post by  Bud Cline 
#1 ·
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?
 
#6 ·
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...

http://www.hardwoodinstaller.com/hardwoodinstaller/remove-tile.htm
 
#9 ·
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.:)
 
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
Top