1. Brush the first time waterproof coating. Ensure that the construction site is clean and dry before construction, and the waterproof coating should be covered without any omission. It is firmly combined with the base layer, without cracks, bubbles, and no falling off. The brushing height is consistent and the thickness is required to meet the product requirements.
2. Brush the second time waterproof coating. Note that there is a certain time interval between the first and second passes of the waterproof coating. The second pass can be carried out after the first pass of the coating is dry, depending on the coating. The interval is too short and the waterproof effect will be greatly reduced.
3. Spread the protective layer. In order to prevent the subsequent construction from damaging the waterproof layer, it is necessary to apply a protective layer on the surface of the waterproof coating. The protective layer should completely cover the waterproof layer, and there is no leakage. It is firmly bonded to the base layer, free from cracks, no bubbles, and no falling off.
4. Closed water test. In the closed water test, the water at the highest point on the ground shall not be less than 2 cm, and it shall be stored for at least 24 hours, and it shall be qualified after observing no leakage. If there is leakage, you need to redo it, and you should not neglect it.

Base treatment, cleaning, screed layer, joint layer, detail additional layer, acrylic waterproof layer, water storage test, protective layer construction, secondary water storage test.
The elevation of the kitchen and bathroom should be checked correctly, paying special attention to the correct position of the floor drain.