Tile Over Plaster Walls

Bring plumbing to code.

Tile over plaster walls.

Or flatten walls with a latex modified skim coat product. I have repaired tile jobs that were over 20 years old that the tile was applied directly to regular sheetrock and plaster walls. Then rinse the wall with a water dampened. However tiling over tile can add quite a bit of thickness so make sure your wall can handle the weight.

Loose paint must be scraped. Scrub the wall tiles with diluted degreasing cleaner and a nylon scrub brush. Adhesive grout and tile 20kg max weight onto plaster. You may tile over existing tile painted or unpainted drywall plaster and textured walls.

Can you lay tile on plaster walls. Cover with cement board tape off. Mix degreasing cleaner with water in a bucket using a dilution recommended by the cleaner manufacturer. Testing the wall for durability.

The problem otherwise is that grout is porous and any slight crack will cause moisture and mold on any other surface. Layer newspaper on the floor across the bottom of the tiled wall. You should not tile over wallpaper glossy surfaces lead paint or plywood. This was back in the 80 s.

Follow manufacturer instructions to a tee. Mold does not grow on cement. But with cement board. Don t use paint glue pva wall paper paste only use the primer recommended by the adhesive manufacturer of your chosen tile adhesive.

That is true you cannot tile over plaster if that s your plan. Add a diverter and shower line in the wall. Both painted and bare plaster allows for the installation of tile. Not all plaster wall surfaces will support the tile properly.

It used to be very common to put tile up on whatever the wall was and seal the the tile. If plaster is any way compromised you should tear out to studs and start over.