The floor tiles in the living room are hollow

Even if it's the reason for underfloor heating, what about other rooms? So this reason is not valid. When the floor heating is laid, there is a gap between the lines and the lines, and this interval is enough to make the cement and the original ground compact.

There are several reasons why your floor is hollow, 1 The original floor was not cleaned before being laid.

2. The cement is too dry during laying, and there is no solidified medium.

3. After the construction is completed, it is caused by the Venerable Master stepping on it in a hurry without waiting for solidification.

4. The cement slurry poured when the dry ash is laid is too thin.

5. When the wet ash is laid, the cement is too thin, so that the moisture between the cement and the floor tile is too large and not easy to stick.

6 There is also a method of laying, which is to touch the plain cement on the back of the floor tiles, and if the bottom ash is too dry, it will also be hollow.

Listen to the sound, because there is floor heating and there will be a hollow drum sound, but it is heavier than the hollow drum brick sound of the tiles.

There is also a possibility of this, because the contact between the floor heating tiles and the ground is not very good, it may be empty.

It depends on the thickness of your cement mortar. If 3-4 cm is not this possibility, is there a metal knock or is there a sound of a hollow drum when a person walks on it? Large-scale underfloor heating is possible.