backupmike2000

Hi guys,

I am a painter by trade, but was planning on ripping up my bathroom floor - its a small bathroom floor (excluding tub) 6'x4. The problem is that my house is old - built in the 1880s - and the bathroom floor has a slight wave to it. The tile on the floor now is ceramic 1inch tile. I was planning on replacing it with 4 or 6 inch tile. But, I figured I would run into problems due to the wave. So, I considered a self-leveling product from Durock (multi use self-leveling floor underlayment). I didnt know if any of you guys used this and what you thought. From everything I have read, you are supposed to apply this to the subfloor. But, I was wondering if I could apply it over the existing tile? Any help would be appreciated.

R&D Tile

I would remove the old tile, probably over a mud floor, remove that too and re-mud it, then tile.

I guess the old tile isn't flat?

backupmike2000

not at all

bwalley

I would use a minimum of 12" tiles if not 16" or 18".

Mud set the floor to get the tile level.

Do not install your new tile over the existing tile, it is not a good idea.