Repair and repair methods of top floor leakage in buildings Causes and treatment of top floor leakage

Usually, the problem of water leakage at the top floor of a building can be divided into two main reasons: external and internal.

Part of it is caused by external reasons, that is, the roof structure is unreasonable. In the past, the external walls of some old buildings leaked after rain or the walls were moldy because of their concrete slabs.

Relatively speaking, most of the internal causes of water leakage at the top floor of the building come from the waterproof layer or various pipes. Because the water leakage points are generally concentrated in the kitchen and bathroom, we can do the closed water test first when checking the water leakage points. If problems are found during this period, we should redo waterproofing. If there is no water leakage, the problem may be the pipe.

Second, how often does the top floor leak?

Whether the top roof leaks or not is related to the concrete pouring, vibrating and curing of the roof and the construction quality of the waterproof layer of the roof. General waterproof warranty period is 5 years.

3. What should I do if the top floor of the building leaks?

1, find a property solution.

According to the relevant regulations of the building, if it is a commercial house, you can find the property management and let them solve it. If it is not solved, you can complain to them.

2. Find the cause of water leakage

If the roof leaks, it can only be repaired by itself if it is not within the scope of property management. Then, look for the leaking place first, and then see what can be done to remedy it.

3. Cement joint filling

If you find a leaking place, if the area is relatively small, it means that waterproofing is not done well. If it is a gap, you can cut the gap a little more and make it bigger, and then fill it with cement again. After filling in the gap, brush cement ash on it.

4, laying asphalt

The common method of roof leakage is paving asphalt, which is generally aimed at the situation of small leakage area, simple construction and relatively cheap price.

5, redo waterproof

If the area is relatively large and the waterproof layer can no longer be waterproof, it can only be waterproof again, preferably in hot summer.

6, laying color steel tile

In many cases, paving asphalt is only a temporary measure. After some waterproof projects are done, the effect is not very good and it will leak rain. You can lay colored steel tiles. This is the best, but the cost is higher.

7. Avoid stagnant water and plants

Roof leakage is directly related to roof water accumulation, especially in old buildings. Waterproof aging, drainage should be smooth, if there are wild plants on the roof, it is easy to leak, and planting will affect the waterproof effect.

4. What should I do if the drain pipe on the top floor leaks?

First of all, look at whether the upper and lower waterproof parts are properly handled, that is, whether they are firmly connected with the pipeline. Try to replace them with a bigger rain hat.

If there is no problem above, there is a problem with the overall waterproof layer. It is normal that the structural plate blocks water, and the water is left from the weak point. If it gets stuck below, it will come out from somewhere else. If the roof itself is waterproof, it is necessary to redo the whole roof, or find the leakage point to connect with the original waterproof layer.

5. What should I do if the seepage wall on the top floor is moldy?

If the moldy wall is not serious, you can wipe it with a wet cloth or rinse it with water. If it can't be completely removed, it can also be cleaned with bleach, so that mildew spots can be removed. If there is no moisture in the moldy wall, it is said that the moldy spot comes from the inside of the wall. It is necessary to remove the plastering layer of the interior wall, repaint the cement, and paint a quarter of pearl salt to keep it warm and waterproof. Then batch hanging putty, brush ordinary latex paint.