Scrape away stuck-on tile adhesive from the drywall with a plastic putty knife. Hold the putty knife as flat as possible to reduce gouges in the drywall. Cut away loose bits of peeling drywall paper with a utility knife. Sand the wall with a drywall-sanding pad to smooth the surface. Sand the walls with sanding block to smooth it out lightly and remove any traces of mastic. Wipe the walls down, and survey the area for any cracks, holes, or uneven areas. Scrape away stuck-on tile adhesive from the drywall with a plastic putty knife. Hold the putty knife as flat as possible to reduce gouges in the drywall. Cut away loose bits of peeling drywall paper with a utility knife. Sand the wall with a drywall-sanding pad to smooth the surface. So while you don't have to reinstall new drywall, before you're able to apply the new tile, you first have to prep the wall for the new application. Start by removing any excess adhesive from the wall. This can be done with a scraper. Fill the cracks and hole/divots with the drywall compound or Spackle. Ceramic wall tiles provide an easy-to-clean surface for kitchen backsplashes and bathroom walls. It's possible to remove ceramic tiles on drywall, but it does take patience. Sometimes, additional minor repairs to the drywall may be necessary, once the tiles are out of the way.
To remove wall tiles, start by heating up the grout between the tiles with a blow dryer so it's easier to remove. Then, use a utility knife or rotary grinder to scrape away the grout until the spacer lugs between the tiles are visible. Next, use a chisel and hammer to pry the tiles off of the wall.
Supplies needed: Dust mask. Safety goggles. Ear protection. Heavy-duty work gloves. Flat-edge shovel. Floor scraper (also known as a bully tool) Hammer. Masonry chisel.
Clean any loose residue. Soak clean, absorbent rags in warm water. Gently scrape the mastic off of the tile. Remove the thin layer of mastic residue left on the tile by soaking for 10 minutes with citrus cleaner. Buff the tile with a clean soft rag after removing residue.
Sheetrock, or drywall, is no different for tiling over than wood, plaster, cement, or other wall materials. If you are tiling an area that is not in a bathroom, tiles can be applied directly to the sheetrock simply and easily. The wall has to simply be prepared in order to complete this task properly.
If you're working with new drywall, there's no need to tape the drywall joints. Seal the walls with a skim coat and let it dry thoroughly. Thoroughly vacuum the area and give the wall a once-over with a damp sponge or cleaning cloth. Allow the area to thoroughly dry before beginning tile installation.
As long as your wall is smooth and flat, you can install a ceramic tile kitchen backsplash directly over drywall or plaster with no problem. Start by cleaning the wall to remove any grease, then apply thin-set adhesive, and set the tile. After the adhesive has set, apply grout, and you're done.
Thinset bonds best with a porous surface, such as new drywall or backerboard, which needs no preparation, but you can apply it over painted walls or tiles that are flat and in good condition as long as the shiny finish is removed. Use the type of thinset mortar specified for your particular tile.
It will be fine to tile over drywall in low-moisture areas, such as tiling around a fireplace. In areas of high moisture, such as walls in a shower, for long term durability, it is NOT advised to install tile over drywall, even if the drywall is Type MR, moisture resistant.