If the house stays for a long time, there will be problems, so we have to carry out regular inspections of the house. Some houses will have problems with wall leakage. At this time, we have to solve it. Before we solve it, we will solve it. It is necessary to find out the reasons first, then what are the reasons for the leakage of the external wall? How to deal with the leakage of the external wall? If you want to know, let's take a look at the small series of the decoration home network.
First, the reason for the leakage of the external wall
1. Various new wall materials used in modern building construction basically have the characteristics of large porosity, strong water absorption and poor resistance to penetration. Therefore, in the process of masonry, the gray mortar, especially the cement mortar in the vertical joint, is generally difficult to achieve the effect of fullness and compaction, the connection between the wall and the reinforced concrete beam and column, the window frame and the wall. The position often causes cracks due to the difference in properties of the material, which in turn causes leakage of the wall .
2. The connection position of the outer wall column of the frame structure with the cutting problem is not buried, the setting of the rib is not strong, or the spacing, length and quantity of the rib are not in accordance with the standard requirements, and the difference in temperature expansion coefficient is relatively When it is large, it will cause cracking of the connection position and form a flood-prone area;
3. During the construction process, there is a problem of insufficient adhesion between the outer wall brick and the bottoming mortar, which causes the occurrence of hollow drum disease. The joint of the facing brick is not dense enough, and there is a problem of trachoma or crack. Inducing water seepage on the wall;
Second, how to deal with leakage of external walls
1. When the gap on the surface of the wall is wide, first sprinkle the water to wet the gap, and fill the flat with inorganic waterproof plugging material (water does not leak, quick-drying cement, etc.). When the gap on the surface of the wall is narrow, the waterproof coating such as polyurethane waterproof coating is used to paint the gap. When the coating is applied, the thickness of the coating film is controlled to 1.0 to 1.5 mm, and the width of the gap is narrow. It should be filled with inorganic waterproof sealing material. The standard, when filled in, is included in the wider crack.
2. Leakage of the pipeline can also cause the house to leak water. This may be a problem with the joint between the pipeline and the floor. The contact surface between the pipeline and the floor is not fully closed, which may also cause water leakage. This solution only needs to treat the closed area between the pipe and the floor as closed.
3. Mix the Laurier mortar waterproofing agent with cement and sand at a weight ratio of 1:2:6 and mix it into a waterproof mortar. Apply it to the area to be repaired according to the ordinary plastering method, and at the same time level the base surface. Use Loyal water to mix with water and ash ratio 1:3 plus water, quickly stir into a slurry, and knead it into a clay mass by hand. When it is slightly hot, press the V-shaped slot to press it tightly.
Sometimes there are water leakage problems in the house, especially the water leakage on the wall. What is the reason for the leakage of the outer wall and how it is handled? The introduction of the above small series also understands these problems, if you still want to To understand more information about decoration, please continue to pay attention to the decoration home Internet cafe.
More related wonderful reading:
Introduction of leakage of external wall, introduction of external wall leakage maintenance company
What should I do if the exterior of the house leaks? Exterior wall decoration precautions
What should I do if the exterior wall of the building leaks? How to deal with the leakage of the exterior wall of the building?
What should I do if the outer wall leaks? Cause and treatment
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