You may tile over existing tile painted or unpainted drywall plaster and textured walls.
Marble over drywall.
If you are tiling an area that is not in a bathroom tiles can be applied directly to the sheetrock simply and easily.
You should not tile over wallpaper glossy surfaces lead paint or plywood.
By locating wall studs outside the tile perimeter and cutting through the drywall along the centers of the studs you can then pry the drywall along with the marble tiles away from the studs.
However tiling over tile can add quite a bit of thickness so make sure your wall can handle the weight.
The wall has to simply be prepared in order to complete this task properly.
How to tile over painted drywall.
However the cultured stone can only be installed on certain surfaces and drywall does not serve as a proper base for this material.
Sheetrock or drywall is no different for tiling over than wood plaster cement or other wall materials.
Problems with drywall while it is a reliable building material drywall is not waterproof or water resistant which limits the materials that can be applied directly over the surface.
These tape lines will protect paint that will not be tiled over when sanding.
If you re not sure if you have lead paint test kits are available.
Tiles are ideal for showers bathtubs and backsplashes.