I believe that a lot of young people will encounter some empty tiles after staying in the new house for a few years. We will wonder if the master who worked in the first place gave us Jerry built materials or other reasons?
Next, let's analyze the specific situation
The back of some ceramic tiles is very clean, and the cement is well stuck on the wall, but there is ceramic tile powder stuck on the cement. The main reason for the falling off is that the quality of ceramic tiles is not up to standard, and there is a layer of powder on the back of ceramic tiles that has not been handled well. There is a problem with the tiles falling off. The tiles have cement on them, and the walls are clean. The main reason is that the bricklayer is lazy and doesn't roughen them.
The reason for the bulge at the pipe guarantee is the heat expansion and cold contraction. To prevent this accident, we need to leave a big gap for the workers when tiling. Generally, the gap is 1.5mm. We can make it 2-2.5mm, which is too big and ugly.
There are two reasons for tile falling off
The first reason is that the cement is not full. In your opinion, there is no cement in some places. How can it not be empty?
The second reason is that the back glue of ceramic tile is not applied. If the back glue of ceramic tile is applied, even if it is empty, it will not fall off
So how to solve these problems perfectly? Let's take a look at our construction site. This is basically a perfect solution.
Ceramic tile thin paste technology: first of all, roughen the whole wall surface and then level it with cement. When the cement is dry, brush a layer of wall to prevent the pitted surface from falling and not firm. Then use a special ceramic tile adhesive to pave and paste, so that the bonding is relatively firm and not prone to hollowing!
However, the cost of decoration is relatively high, and it is cheaper to use for a long time, and the maintenance rate is almost zero.
The next step is to use the adhesive on the back of the ceramic tile, that is, brush a layer of adhesive on the back of the ceramic tile and then pave it. It is relatively firm to do so, even if there is an empty place, it will not fall off, because I have done experiments on this adhesive myself. It's not easy to smash it with a hammer after pasting.
Below is the red part of tile. We use tile leveler, or tile positioner. The purpose is to make the flatness of ceramic tiles more perfect
Comprehensive suggestion: if the decoration cost is tight, we can consider using ceramic tile back glue. This thing is still very effective and the price is not high. If the decoration cost is sufficient, it is suggested to use ceramic tile thin paste technology, whether it is firmness, flatness or hollowing rate will be better than the previous one. If you are a local tyrant, you can consider both of the above suggestions, tile thin paste and back glue. Even if it's three generations, I don't think it will be lost!
