How to install ceramic tile over a painted concrete floor?

  • Thread starter Thread starter I no do "NICE"
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I no do "NICE"

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Why? The whole idea of plywood and "concrete" backer boards is to give you a surface that "won't move(thereby cracking the tiles).
Seeing the floor is concrete already, you already got the "backer board" in place. Gravity will hold the tiles down. Ceramic tile glue sticks like cement"to anything". So the paint can stay. Just use a 4" spackle knife to lift up any obviously flaking paint.. However, did you check to see that your floor is 100% flat? Using a long straight edge.48-96" long. You may have to "float the floor first" with a thin slurry of concrete to give you a perfectly flat surface. That way the tiles won't break because they are supported completely.
Then go for it. Tiling is the same around swimming pools which are concrete patio's. Paint is not a concern. Make sure to grout the grooves afterwards.
 
Just put in right on top of the painted concrete.
No need for backer board.
As long as the paint is not pealing off. If it is glossy paint then give it a good sanding first.
 
Can we nail down concrete backer boards or do we have to put plywood down first then the backer boards. Our room is indoors and can't use strippers because of rinsing . Can't find a shot blaster anywhere close by.
 
I would think that as long as you take the sheen off the paint thinnset should adhere to the cement.

You might want to mix up a small batch and test it. You can chip off your test area and then do the entire floor.

You might be able to use mastic, but for floors I have always preferred to use thinnset.
 
Just put in right on top of the painted concrete.
No need for backer board.
As long as the paint is not pealing off. If it is glossy paint then give it a good sanding first.
 
as long as there is no signs of moisture, the paint is not flaking, and the surface is smooth, you should be able to tile right over the existing floor. Tile cement will adhere to a painted surface just as well as a cement surface.
 
as long as there is no signs of moisture, the paint is not flaking, and the surface is smooth, you should be able to tile right over the existing floor. Tile cement will adhere to a painted surface just as well as a cement surface.
 
as long as there is no signs of moisture, the paint is not flaking, and the surface is smooth, you should be able to tile right over the existing floor. Tile cement will adhere to a painted surface just as well as a cement surface.
 
as long as there is no signs of moisture, the paint is not flaking, and the surface is smooth, you should be able to tile right over the existing floor. Tile cement will adhere to a painted surface just as well as a cement surface.
 
as long as there is no signs of moisture, the paint is not flaking, and the surface is smooth, you should be able to tile right over the existing floor. Tile cement will adhere to a painted surface just as well as a cement surface.
 
as long as there is no signs of moisture, the paint is not flaking, and the surface is smooth, you should be able to tile right over the existing floor. Tile cement will adhere to a painted surface just as well as a cement surface.
 
as long as there is no signs of moisture, the paint is not flaking, and the surface is smooth, you should be able to tile right over the existing floor. Tile cement will adhere to a painted surface just as well as a cement surface.
 
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