If you re not sure if you have lead paint test kits are available.
Tiling over plaster walls bathroom.
Fresh plaster whether applied as a patch or to the entire wall must dry completely before tile is applied.
The adhesive and tile will block moisture from evaporating.
However tiling over tile can add quite a bit of thickness so make sure your wall can handle the weight.
If plaster is any way compromised you should tear out to studs and start over.
The problem otherwise is that grout is porous and any slight crack will cause moisture and mold on any other surface.
This was back in the 80 s.
You may not have lathe but compressed board under the plaster and scratch coat.
Bring plumbing to code.
You may tile over existing tile painted or unpainted drywall plaster and textured walls.
If you have a tiling job to do in your bathroom and the walls have been skimmed with plaster you have.
It used to be very common to put tile up on whatever the wall was and seal the the tile.
Cover with cement board tape off.
That is true you cannot tile over plaster if that s your plan.
Add a diverter and shower line in the wall.
I have repaired tile jobs that were over 20 years old that the tile was applied directly to regular sheetrock and plaster walls.
You should not tile over wallpaper glossy surfaces lead paint or plywood.
You would have to remove the plaster and replace it not with drywall run from a contractor who says that.
It is important to check the weight of your tiles as plaster skim has a 20kg per square meter weight ratio.
Follow manufacturer instructions to a tee.
Tiling over damp plaster causes the wall to fail because the plaster won t become strong if it can t dry out.