We all know that the most important thing when decorating is waterproofing, and many people do not know how to do it during construction because of their lack of understanding of the waterproof construction. For waterproof construction, how do we need to do it? Many people don't know it! Today, Xiaobian will take a look at the waterproof construction method and construction precautions! What are the methods of waterproof construction? 1. Cleaning of the base layer: Before the construction of the waterproof layer of the coating film, remove the gray skin on the surface of the base layer with a blade, and clean the dust, sand and other debris with sputum, especially the roots, floor drains and drains. Be careful to clean it up. If there is oil, brush it with a wire brush and sandpaper. The surface of the base layer must be flat, and the depression should be filled with cement putty. 2. Ingredients: Take the material according to the specified ratio and stir it with a stirrer for about 5~10min until the material does not contain agglomerates. Generally, mechanical agitation is used, and manual mixing is not suitable. To apply primer, etc. If you need to add water, you should first add water to the liquid, and add the powder with a stirrer while stirring. The color layer coating has a pigment addition amount of less than 10% of the liquid material, and it is only necessary to add a pigment to the top layer coating. 3. Coating: According to the characteristics and requirements of the project, choose the appropriate method. When coating, it should be as uniform as possible, there should be no local deposition, and it is required to brush several times to make the coating and the base layer dense, no air bubbles, and the bonding is strict. When used on a wet or non-absorbent substrate, there is no need to apply a primer. The time interval between the layers is based on the dry coating of the previous layer. If the thickness of the waterproof layer is not sufficient, especially for the construction of the facade, one or more layers may be applied. When adding non-woven fabrics, the undercoating and topcoating should be continuously applied. The non-woven fabric should be laid flat and the brush should not be left empty. 4. Protective layer and decorative layer: It must be done 2 days after the waterproof layer is completed. In order to facilitate the construction of the mortar, it is also possible to sprinkle the clean medium coarse sand immediately after the waterproof layer is applied one time later. Waterproof construction precautions 1. Empty drum: The waterproof layer hollow drum generally occurs between the screed layer and the waterproof layer of the coating film and at the joint. The reason is that the base layer contains too much water to make the coating film hollow and form bubbles. The moisture content should be controlled during construction and carefully operated. 2. The joint between the wall and the ground and the joint between the upper and lower water pipes and the ground are the most prone to problems. Therefore, these parts must be paid special attention, the treatment must be meticulous, and there must be no sloppy. 3. All the sewer pipes in the bathroom, including floor drains and sanitary pipes, should be kept open. In this way, the phenomenon of water seepage can be avoided fundamentally. 4. Leakage: Water leakage in the waterproof layer occurs mostly in the roots, floor drains, sanitary ware and yin and yang corners of the floor. The reason is that the roots, floor drains and other components are loose, the bonding is not strong, and the coating is not tight. Or the waterproof layer is partially damaged, and the length of the joint at the joint is not enough. Before the construction of the waterproof layer of the coating film, it should be carefully checked and repaired. Waterproof construction is the most important thing when we decorate the house, so it is most important to learn how to do it before renovation. The above is the waterproof construction method and construction precautions introduced by Xiaobian today. It is over here. For more information, please continue to pay attention to the decoration home. More related wonderful reading: What is the waterproof construction plan for the basement? Waterproof construction precautions External wall waterproof construction precautions External wall waterproof construction steps What is the waterproof price of the bathroom? Toilet waterproof construction precautions What are the roof waterproofing practices? 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