I live in a condo building built in the 70's, bathroom was tiled with 1x1 squares in thinset or some kind of mortar. It is ridiculously hard to take off. The subfloor is sound and the tiles are good and level. Can I put thinset over this tile and then some cement board over that? Followed by thinset and tile?
Or can I pour self leveling cement followed by tile+thinset?
Doesn't require anything special. Install the new tile directly to the old tile using modified thinset. If the old tiles are glazed (really smooth and slick) then they should be scuffed first.
Hello Bud, thank you for responding. Is that all that's needed? I'm almost afraid that scuffing the surface (every 4th tile is smooth), won't give a good grab for the modified thinset
That's all that's necessary in this case. Pretty simple and inexpensive actually. Usually a belt sander with 60 (or less) grit sand paper will cause a sufficient amount of ruin to a glazed tiles surface. Aluminum Oxide paper is readily available but Silicon Carbide is better to use if you can find it.
I would call it "scarifying" instead of scuffing. Bud might be right, and simple scuffing with heavy grit sandpaper might be just fine. I prefer to scarify with a diamond wheel on my grinder, but if you don't own one, I suppose it could be overkill.
I would call it "scarifying" instead of scuffing. Bud might be right, and simple scuffing with heavy grit sandpaper might be just fine. I prefer to scarify with a diamond wheel on my grinder, but if you don't own one, I suppose it could be overkill.
in that case, could i perhaps use SLC post scarifying (primer first)? I'd like to raise the level by about 1/4 inch or more.
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
Related Threads
?
?
?
?
?
DIY Home Improvement Forum
3.1M posts
319.6K members
Since 2003
A forum community dedicated to Do it yourself-ers and home improvement enthusiasts. Come join the discussion about tools, projects, builds, styles, scales, reviews, accessories, classifieds, and more! Helping You to Do It Yourself!