Tile Over Plaster Walls

Mold does not grow on cement.

Tile over plaster walls.

If plaster is any way compromised you should tear out to studs and start over. Bring plumbing to code. Then rinse the wall with a water dampened. This was back in the 80 s.

Not all plaster wall surfaces will support the tile properly. Mix degreasing cleaner with water in a bucket using a dilution recommended by the cleaner manufacturer. Loose paint must be scraped. Cover with cement board tape off.

It used to be very common to put tile up on whatever the wall was and seal the the tile. Can you lay tile on plaster walls. You would have to remove the plaster and replace it not with drywall run from a contractor who says that. Follow manufacturer instructions to a tee.

Both painted and bare plaster allows for the installation of tile. Also now it s been plastered you will be restricting yourself to a tile with a max weight of about 16 kg m2. Adhesive grout and tile 20kg max weight onto plaster. Scrub the wall tiles with diluted degreasing cleaner and a nylon scrub brush.

Don t use paint glue pva wall paper paste only use the primer recommended by the adhesive manufacturer of your chosen tile adhesive. If you re not sure if you have lead paint test kits are available. That is true you cannot tile over plaster if that s your plan. Or flatten walls with a latex modified skim coat product.

Layer newspaper on the floor across the bottom of the tiled wall. You should not tile over wallpaper glossy surfaces lead paint or plywood. However tiling over tile can add quite a bit of thickness so make sure your wall can handle the weight. I have repaired tile jobs that were over 20 years old that the tile was applied directly to regular sheetrock and plaster walls.

Add a diverter and shower line in the wall. The problem otherwise is that grout is porous and any slight crack will cause moisture and mold on any other surface.