The tiles on the balcony floor are warped!

There are many reasons for the protrusion of floor tiles, materials, processes, temperatures, etc. Or the cement used in laying is inferior cement, so that the ground base layer fails to produce strong viscosity to the brick, so that the brick warps in the process of thermal expansion and cold contraction. There is also that the floor tiles are paved side by side, the size of the gap is not properly handled (generally 2mm), and the expansion and contraction of the base layer is larger than that of the tile, which will cause the arch of the tile layer, and the warping of your balcony is likely to be due to the thermal expansion and contraction produced in winter. The treatment method is to pry up the warped floor tiles, remove the ground base, and then use high-quality 325 cement and yellow sand to lay the bricks.

Is your first year of new home?

If the floor tiles are broken. That's the wrong choice of decoration materials. It's cold in the winter. Antifreeze bricks should be used. --Buy antifreeze bricks and install them.

If the floor tiles are in good condition. It's just that the cement underneath is broken. That's because the people who did the decoration construction did not make the ratio according to the correct materials. And it is quite possible that the gaps between bricks are too dense. --Installation from the ground up with fresh cement.

If it is not very powerful, you can pour cement and slurry (a little thinner) into it along the seam.

If it's too powerful, it's only going to have to be redone once.

Shovel off completely, including the bonded cement layer. Then sprinkle the ground with water, 1: cement mortar paving tiles.

There is no choice but to re-lay it all.