Cracked tiles are usually the result of other underlying issues, mostly likely incorrect installation. However, it could also be due to extreme temperature changes, cracks in the substrate (or surface the tile is laid on), supporting too much weight or something as simple as a heavy item being dropped on them.

How do you stop tiles from cracking?

Additional Details to Avoid Cracked Tile As with wood floors, the best way to avoid cracks is to install an anti-fracture membrane. Isolation and uncoupling membranes work, as do liquid-applied coatings or synthetic fabrics for use over concrete.

What causes hairline cracks in tile?

During the manufacturing process, the glaze and the body of the porcelain and ceramic tile are bonded together using extreme heat in a kiln. These two materials can expand and contact at different rates naturally and this is what causes the hairline cracks known as crazing.