The bathroom is a storage box type how to make waterproof

Hello! The waterproofing construction of caisson toilet is as follows: Step 1:

Do two times of waterproof coating, these two times of waterproofing must be done together with the wall, and the height of the wall should be more than 40 cm higher than the upper edge of the caisson. Ensure that the seepage water in the upper layer will not expand to the periphery, and can only be discharged to the floor drain. Step 2:

Red brick or concrete is used as a partition overhead, and the caisson is divided into several 400*400 lattices. Many people don't do this step, in fact, this is a very important step, with such a load-bearing partition, the concrete layer above will not fall. Otherwise, after a few years, the bathroom floor will sink, crack and leak.

Step 3: Fill in ceramsite or cinder. Fill the moisture-proof ceramsite and lattice, do not press too tightly, naturally, because it is not load-bearing, only plays the role of absorbing water vapor.

Step 4: Cloth the rebar. A layer of 200mm*200mm square steel mesh composed of 5 mm diameter steel bars is placed above the lattice to ensure the firmness of the concrete layer and the uniform force.

Step 5: Pour the concrete layer, 40 mm thickness of C25 fine stone concrete leveling. This layer should be done to make a waterproof layer, do two times of waterproof coating, even the wall to do, after the waterproof layer is dry, to brush a plain cement layer to protect it, so as not to scratch when paving the floor tiles and porcelain tiles, and the protective layer can only be done after the next step of paving work.