Back Butter the Tile

What happens here

Before placing the tile on the prepared mortar bed, a thin, even layer of thin-set mortar is applied to the entire back surface of the tile. This technique, called 'back buttering,' ensures 100% mortar coverage, eliminates air pockets, and maximizes adhesion between the tile and the subfloor mortar, which is crucial for a strong, long-lasting installation and to prevent hollow spots.

Goal: Apply mortar to the back of the tile for full coverage