If plaster is any way compromised you should tear out to studs and start over.
Tile over plaster walls in shower.
How to tile over existing wall tile.
If you re not sure if you have lead paint test kits are available.
Some products are designed specifically for use between tile and plaster walls but any tile setting adhesive designed for thin set use will work.
Colorful tiles may go out of style and some tiles are inappropriate for the space.
I didn t want to demo the bedroom bath so i used wedi board over the existing tiles pla.
The mesh composition of this material will serve as teeth and lock in plaster applied to its surface.
Or flatten walls with a latex modified skim coat product.
You may tile over existing tile painted or unpainted drywall plaster and textured walls.
Use 7 5 cm 3 inch galvanised screws and screw directly through the mesh and into the wall framing behind the tile.
This is a renovation i did of my 1960 s plaster mud job bathroom.
This was back in the 80 s.
Add a diverter and shower line in the wall.
Tiled walls can last many years but that s not always a good thing.
Bring plumbing to code.
I have repaired tile jobs that were over 20 years old that the tile was applied directly to regular sheetrock and plaster walls.
Install the diamond mesh directly over your tile surface.
The surface of a plaster wall is too smooth for the cement to grip to.
A glue adhesive works better for installing tile over plaster.
Follow manufacturer instructions to a tee.
Learn the largest tile industry secret to remodel your bathroom for just 200 bucks and 1 days work.
However tiling over tile can add quite a bit of thickness so make sure your wall can handle the weight.
Tile on tile or as i say it.
You should not tile over wallpaper glossy surfaces lead paint or plywood.