Why does the bathroom need to be waterproof? What problems should I pay attention to when doing waterproofing?

The first thing in the renovation of a new house is to waterproof the toilet, which must not be forgotten, because if this is not done, it will bring you great trouble in the later stage. Because the waterproof membrane is done between our old houses, we always quarrel with the downstairs when we move in later, because our house always leaks water. I didn't know the reason at first, but I went to their house to see it, and I realized that all the water in our toilet leaked into their toilet.

I had experience after buying a new house. First of all, the first thing was to waterproof the bathroom. After finishing, I had to fill it with at least 2 cm of water. Then I went downstairs in a couple of days to make sure there was no water leakage, and then I did it again. At first, the waterproofing in our house was a bit complicated, because there was always a little leakage. Later, I asked the property to rework it, and then I did it again myself to make sure it was safe.

Strange to say, even the kitchen and balcony should be waterproof. It is said that some owners who didn't do it before suggested that we must do it because of water leakage and unpleasantness downstairs, otherwise it would be very troublesome if it leaked later. Anyway, it won't cost much, so it's better to do it. Otherwise, if it isn't done well in the future, it will cost all rework, and the decoration is full of pits, so everyone must pay close attention to it, otherwise the effect will be as you expected.

In our family, we just contract and don't contract materials. We buy everything by ourselves in the material market. Although it's a little hard, at least it's genuine. If you contract and contract what others give you, the quality may not be very good, and the money will be spent. That's what we thought at first, so we chose to contract and don't contract materials. After we finished, we were quite satisfied with everything, and we felt particularly fulfilled, because everything was selected by ourselves, and it was really disappointing.