Why do tiles fall off?

1, and the water absorption of normal ceramic tiles will not be lower than 10%. Too low water absorption will lead to insufficient water absorption and poor bonding of cement mortar, which will lead to the problem of falling off, but too much water absorption will expand and lead to cracking.

2. The mortar on the back of the ceramic tile is not cleaned up, which will make the bonding between cement mortar and ceramic tile more difficult, thus causing the problem of falling off.

3, the quality of cement mortar is not up to standard, which will lead to excessive heat loss, too fast water evaporation, cracks, and affect bonding.

4. Insufficient watering before construction will make the cement mortar after paving continue to absorb water, resulting in empty drum and falling off.

5, cement mortar daub is not balanced, not fully paste, will lead to the emergence of empty drum, thus the problem of falling off.