What does it mean to return to the bathroom kitchen?

In layman's terms, bai is called "reverse side", and there is often zhi water in the kitchen and toilet, right, and the water will seep from the wall after building the wall.

In order to prevent the penetration of water rights, the concrete is poured in front of the wall of the kitchen and bathroom, and the form of a circle of concrete anti-beams is formed around the entire kitchen and toilet, and the wall is built on the concrete beam, so as to effectively prevent the penetration of water. The reverse side is generally 200 meters high, as wide as the wall, and there is no need to place steel bars, which can be plain concrete.

The return means that when the bathroom is waterproofed, in addition to the ground waterproofing, around the wall, 30 cm of waterproofing is done upwards Generally, yes

That is, the water-stopping anti-beam, refers to the concrete beam that is higher than the overall floor plane and plays the role of water-stopping concrete beam that is set up along the bathroom, kitchen and other functional rooms with waterproof requirements, and the general height is about 15-20CM.

The meaning of the upper return is when the bathroom is waterproofed.