The national law stipulates that every bathroom should be waterproofed before the house is delivered. The reason is to ensure our daily life, not let the bathroom leak to the floor and prevent water from penetrating into the building. This is for the safety of the building floor, but also to ensure the harmony of neighbors. So, how to apply waterproof coating to ensure the waterproof effect of the bathroom?
How to apply waterproof coating for bathroom
1. Brush the first time waterproof coating: Ensure that the construction site is clean and dry before construction, the waterproof coating should be covered, no omission, solid combination with the base layer, no cracks, no bubbles, no shedding. 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 waterproof coatings. After the first coating is dry, the second time can be carried out. The specific time depends on the coating. The interval is too short and the waterproof effect will be greatly reduced.
3. Laying the protective layer: In order to prevent the subsequent construction from damaging the waterproof layer, it is necessary to lay 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: When the water is closed, the water at the highest point on the ground should not be less than 2 cm, and it should be kept for at least 24 hours. If there is leakage, you need to redo it, and you should not neglect it.
How to construct the waterproof coating of bathroom
The base layer is treated and cleaned, and the water storage test, the protective layer construction and the secondary water storage test of the screed layer, the joint layer, the detail additional layer, the acrylic waterproof layer are performed.
1. The elevation of the bathroom should be checked correctly, paying special attention to the correct position of the floor drain.
2. The quality of the floor drain and the root wall of the pipeline should be carefully checked. The wall hole should be compact and qualified. The root of the pipeline must be caulked as required during the screed construction.
3. The yin and yang angle should be made into a circular arc shape, and straight and flat.
4. Leveling construction: There are voids, cracks, and unequal defects on the base surface, and the mortar is repaired and smoothed. The base surface must be firm, smooth, clean, free of dust, greasy, wax, mold release agents, and other debris.
5. After the screed is dry, the waterproof layer can be constructed. It should be fireproof and waterproof during construction. Construction workers should wear soft-soled shoes.
6. After the waterproof layer is completed, the finished product protection shall be carried out, and no businessman shall walk. After passing the inspection and confirming the qualification, the concealed project acceptance visa can only be processed before the next process can be carried out.
7. After the waterproof construction is completed, the water storage test is carried out, and no leakage after 24 hours or more is regarded as qualified. Perform a secondary water storage test after the equipment is installed.
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