Scrape the surface of the adhesive with a stiff bristle brush.
How to remove tile from sheetrock walls.
Fold the towel around the dry ice and twist the ends to give you a handle.
For semi soft adhesive mastic use 120 grit sandpaper to remove it from the wall.
To remove thinset use a stiff putty knife and some elbow grease to scrape it from the wall.
Vacuum to remove dust.
Work the spreader in several different directions to push the grout into the spaces between the tile.
Fill drywall gouges with drywall joint compound and sand it smooth.
Tiles installed with thinset or another tile adhesive often require more work to remove them.
Put on protective gloves and place a piece of dry ice in a towel.
Step 3 wipe some tile adhesive remover over the surface of the wall.
The rock hard adhesive will be thinset a cement based product.
Be careful not to gouge the drywall any more.
If any adhesive gets stuck to the brush remove it by hand and continue until no more adhesive remains on the wall.
Once those tiles loosen pry them off.
Remove any remaining dust oils and grease from the wall with tsp tri sodium phosphate or an ammonia based cleanser.
Move the spreader down the face of the tile to remove any excess grout leaving a indentation.
Pry the tiles loose one at a time by pushing the trowel behind the tile and mastic.
You will be peeling the outer paper layer loose from the drywall.
A wide blade putty knife is helpful in prying the tiles loose.
Clean the drywall of stubborn thinset encrustation with a razor blade scraper.
Hold the ice against the tile for a minute or two then try prying.
Scrape the wall to remove any texture and to create a flat surface.