Tiling Over Old Plaster Walls

Mix degreasing cleaner with water in a bucket using a dilution recommended by the cleaner manufacturer.

Tiling over old plaster walls.

Follow manufacturer instructions to a tee. Bring plumbing to code. Holes or cracked plaster requires patching. If plaster is any way compromised you should tear out to studs and start over.

If you re tiling the wall doesn t need to be super smooth it just needs to be smooth enough that it won t interfere with the tiles as you site them on into the adhesive. Fresh plaster takes up to 30 days to dry and wooden surfaces can use a layer of polyurethane paint. Or flatten walls with a latex modified skim coat product. You should not tile over wallpaper glossy surfaces lead paint or plywood.

The adhesive and tile will block moisture from evaporating. Concrete plywood drywall or painted surfaces tiling requires appropriate preparation. Firstly check the condition of the plaster skim it should be fully dried out and a light pink colour. Add a diverter and shower line in the wall.

Fresh plaster whether applied as a patch or to the entire wall must dry completely before tile is applied. Tiling over damp plaster causes the wall to fail because the plaster won t become strong if it can t dry out. You may tile over existing tile painted or unpainted drywall plaster and textured walls. Layer newspaper on the floor across the bottom of the tiled wall.

However tiling over tile can add quite a bit of thickness so make sure your wall can handle the weight. I took a tile scraper the. Scrub the wall tiles with diluted degreasing cleaner and a nylon scrub brush. Then rinse the wall with a water dampened.

Bear in mind that raw brick blockwork and cement are mostly uneven. Cover with cement board tape off.