Old master to do a good job of the secret of waterproof! Pay attention to these three principles!
2023-11-22 14:20:38
Let the quality of home improvement waterproof project better, has been the pursuit of all practitioners. The selection of qualified and high-quality waterproof materials is the basis for waterproof, and the correct construction can better play the effect of waterproof materials. Today, Brother Wen will tell you about the major principles to be followed in waterproofing ~
01
The wall is just soft
In waterproof construction, the performance characteristics and applicable occasions of rigid waterproof and flexible waterproof are different.
Rigid waterproof hard deformation, durable, good moisture resistance. Suitable for wall moistureproof, with high compression strength, tensile strength and anti-penetration ability, long service life.
The so-called "wall just", refers to the wall using rigid waterproof material. Because the wall surface is vertical, tiles should be pasted after waterproofing. Too flexible and smooth waterproof coating is easy to cause weak bonding of ceramic tiles, and water on the vertical wall surface will flow down, so the waterproof requirement is slightly lower, and rigid waterproof materials can completely meet the requirements.
Flexible waterproof coating, after drying in the wall, the ground to form a layer of flexible, dense protective layer, to avoid water leakage caused by harm. It can resist the cracks caused by the small displacement of the base wall and the ground, and the blisters do not leak and the moisture does not return.
The so-called "soft", refers to the ground using flexible waterproof material. Because the ground is level, especially the yin and yang angle (wall ground junction), the root of the tube often water, and prone to gaps, the use of flexible waterproof material, its tensile strength is better, not easy to crack, more reliable.
02
Thin brush many times
In the waterproof construction, stable elder brother suggested to follow the principle of "thin brush many times.
If the single coating is too thick, the waterproof coating will be partially cured unevenly, resulting in different internal and external shrinkage forces causing the waterproof layer to crack. In terms of cost performance, it is time-consuming, labor-consuming, material-consuming and uneconomical.
If the waterproof layer is too thin and the strength is insufficient, it is easy to be destroyed, and it cannot withstand a certain amount of displacement. After a period of time, it is easy to leak locally, and the waterproof service life cannot be guaranteed.
According to the requirements of waterproof technical specifications, the thickness of the coating film of the ground waterproof layer shall not be less than 1.5mm, and the thickness of the wall shall not be less than 1.2mm. Note that the thickness mentioned here refers to the total thickness after each thin brush, not the thickness of a single brush.
03
Cross-cross method brushing
Cross method, that is, the direction of the second brush is perpendicular to the first brush. First far and then near, first difficult and then easy, to ensure that the waterproof coating completely covers the base, to prevent leakage brush.
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