This most often occurs with wall tile.
Tile grout issues.
Ideally grout has a consistent coloring from one side of the room to the other.
Tapping a broomstick onto the tile tells if the tile has a hollow spot in the setting material.
The worst possible scenario is that the substrate.
Grout is a very porous.
Efflorescence is generally a porous tile issue however it clusters of the crystals often appear on grout joints due to grout being a highly porous substance.
Common tile stone and grout problems.
White residue stains on tiles.
Improper cleaning of grout haze from the surface of the floor or wall or failing.
You must remove loose or hollow tiles and fix the installation or subfloor problem.
Typically the most common causes are as follows.
In practice it isn t.
1 excessive deflection in the substrate this movement can cause the grout to crack and if sufficiently severe can cause tile to crack.
Grout cracks caused by improper tile installation or a loose subfloor are often fairly major.
They are often found around loose or hollow tiles.
It is caused by moisture entering the grout either from above or below.
Known as efflorescence white stains appearing on the surface of tiles is caused by water penetration underneath stone or tiles.
Cracks in your grout can be caused by a number of issues.
The minerals in the water crystalise which results in white residue appearing on the surface of tiles.
Grout tends to be more porous than tile and so provides an easier pathway for moisture to travel beyond its bounds.
Tile grout problems cracking.