What should I do if the open air balcony is paved with cement and then after the porcelain plate is

Clean up the original tile gaps, solve the problem of water seepage and alkali regeneration with tile caulking agent, and clean up the water on the ground in time after the rain.

Dig the best permeable waterproofing can be done by yourself. >>>More

If you are in the same place, you can press it back, but you can lose some of it, you need to make sure that the floor is still sold. Or you can install the floor according to the number when you restore it, but then the labor cost will be more than doubled.

If it is on the wall, it is a relatively common practice to use tile adhesive, which generally does not fall off; If you are laying floor tiles on the ground, then use cement, which is more economical. At this point, the question of pros and cons is actually a question of cost.

To be sturdy and reliable, it is better to remove the original floor tiles, re-pour the concrete, and lay them with pebbles. >>>More