Type of Hollow Sound

Tile hollowing is generally categorized into the following situations:

Edge and Corner: The tiles' edges or four corners are lifting or hollow.

A section: A small area of the tiles has come loose, with minimal damage.

Midsection: The central part of the tile, for larger-sized tiles, the treatment method is more complex.

In fact, compared to floor tiles, wall tiles are more prone to hollowing due to the difficulty in adhering to walls, the higher construction complexity, and the stricter requirements for workers' laying skills. If not addressed, it's easy for them to fall off.