If your old ceramic tile is worn or dated you can lay new tile right over the old and avoid the huge job of tearing out the old tile.
Can i tile over old floor tile adhesive.
As i can understand if the floor adhesive was loose then definately not but this is stuck like removed to a blanket.
Without a sound solid base no tiling job will ever be perfect.
In fact a lot of the basic rules for tiling still apply exactly as they do for any surface.
If the old tiles are loose then it won t be long before your new tiles go the same way.
Try and lever the old tiles off.
The answer to this is simple.
If they move or come off do not tile over them.
But this assumes that the floor underneath is solid concrete and that there are no cracks in the existing tile indicating.
Thin set mortar with latex fortifier.
Can i tile over old tiles.
Strip them all off and start again it simply is not worth the risk.
Yes but why would you.
The result of this type of installation is especially dramatic if you re changing to a larger size tile as we are in this kitchen.
Tiling on top of old tiles means that any problems with the originals such as becoming loose will still be an issue with the new layer while the extra thickness can also make it more difficult to accurately install fixtures and fittings.
In fact pros do it all the time.
Just ripped out a large bathroom and was a tiled concrete floor pretty much all the old tile adhesive has stayed on the floor have scraped a few areas but has taken ages as it has bonded extremely well to the concrete floor would this be ok to tile over.
Therefore it is necessary to remove or encapsulate the cutback residue before installing floor coverings since the chemicals in cutback can bleed through standard patching or leveling compounds and negatively react with the adhesive and discolor the flooring.
The short answer is most likely yes.
If the installation is over a wood subfloor the easiest way to remedy cutback is to cover the entire floor with 2 layers of felt paper and 1 layer of plywood underlayment and then install the new floor covering over the new plywood.
Tile can be installed directly over a concrete slab or over a wood subfloor with an added layer of backer board.
If your tiles are in relatively good condition evenly placed without cracks and not appearing to retain any moisture then you can probably leave.