It simply involves applying mortar as normal to the substrate but then also applying mortar to the back of the tiles.
Tiling with unlevel walls.
There are numerous ways to make a bumpy uneven or unlevel surface ready for tiling.
If you put a 48 straight edge up against the most sunken areas there s a gap of almost a 1 2.
Things you will need measuring tape tile wet saw leveling spacers and wedges trowel thinset mortar rubber mallet grout grout float grout sponge.
Plastering backer boards and self levelling compound are all great options.
Believe it or not there are more uneven walls and floors than there are even ones.
Short answer to how to prepare an uneven wall or floor for tiling.
The mortar is spread.
The problem is that the wall is uneven.
Back buttering is a common solution to tiling uneven walls and floors or using tiles of varying thicknesses.
Extra mortar is applied to areas that need it either areas with dips in or areas with thinner tiles.
I explain why this method works soooo easy.