Plywood and osb are not suitable surfaces for installing tile on walls and foam does not have the tensile strength to support tile.
How to install tile on sheetrock wall.
Spread the adhesive with the smooth side of your notched trowel and then go over it with the notched side to create ridges in the adhesive.
Next take the tile adhesive thinset mortar and apply it to the drywall with a trowel.
Wipe down with a damp cloth to remove any remaining dust and allow to dry.
Wash the wall with tsp tri sodium phosphate or an ammonia based cleaner to remove any grease or oil.
To do so make sure all of the tiles are intact and secure.
Once you spread the mortar press the tiles into place.
Set the second tile next to the first sandwiching two 1 4 inch spacers in between for even spacing.
To install ceramic wall tile use a level and measuring tape to mark the tile locations on the wall with chalk.
Starting in the center on one side of your reference line apply a coat of tile setting adhesive to an area about 3x3 feet square.
Place the level horizontally on this line and.
Prime the area to seal the new drywall.
Step 4 place tile adhesive on the sheetrock.
It doesn t need to be paint ready and blemish free but it needs to be smooth.
Clean the surface thoroughly and allow it to dry before applying the thinset to sheetrock.
Take care not to cover your lines.
Sheetrock is the trademark of the gypsum company.
Remove the tile and prepare the wall according to the corresponding instructions above or tile over the existing tile.
Be sure to put spacers between each tile as you go.
Repair any loose or cracked tiles.
Seal seams on new drywall with drywall tape and compound and let dry.
Sand the area with medium grit sandpaper and vacuum up the dust.
If existing tiles are beyond repair remove the tile and install a piece of wallboard in its place.
Bare gypsum drywall is a suitable substrate in all dry interior applications.
Add another 1 8 inch to the height measurement and place a mark on the vertical line.
Follow the manufacturer s instructions for using the thinset.
Set the first tile next to where the vertical and horizontal lines meet on the wall.
Use long sweeping motions to apply mortar to the wall and start placing your tiles in the marked locations.
Spread the adhesive evenly in small in sections since the adhesive can dry before you lay any tile if your work area is too large.
Measure up from the bottom of the wall the height of the tile.
Line up the tile edges with the vertical and horizontal marks on the wall to ensure that they re level and plum.