What is the reason why waterproof coiled material is not waterproof?
Time:
2021-07-12
You should know that there are many reasons why waterproof coiled materials are not waterproof. If it is not the quality problem of the waterproof roll itself, it may be the wrong construction method. The waterproof coiled material is not waterproof mainly for the following reasons:
You should know that there are many reasons why waterproof coiled materials are not waterproof. If it is not the quality problem of the waterproof roll itself, it may be the wrong construction method. The waterproof coiled material is not waterproof mainly for the following reasons:
1. The design factors of waterproof treatment are not perfect. Once the waterproof design has problems, it will directly lead to the leakage of the building exterior wall.
2. Building materials may have the characteristics of high porosity, strong water absorption and poor water permeability. This may happen to developers who want to save money.
3. Wall leakage caused by construction factors. It may be that the frame structure is unstable, or the building wall does not meet the standards. It may also be that the adhesion between wall tiles and mortar is not enough, various pipes are perforated, and the windowsill slope is not enough.
4. There is residue on the ground base course, which is not clean, so that water vapor seeps into the waterproof membrane base course at the bottom of the waterproof layer. The base course treatment agent is not applied or the application is uneven.
5. Some consumers do not know how to choose a good elongation waterproof coiled material. They blindly use coiled materials with low elongation, so that the board end and joint details are not added as buffer layer and reinforcement layer, so a series of construction errors of waterproof coiled materials occur.
6. During the construction of leveling layer, rigid waterproof layer, etc., it shall be directly close to the parapet wall, and shall not be seamed. There is no expansion joint in the long railing masonry. Under the action of temperature difference, gable and parapet will crack; The inner corner at the root of guardrail is not arced as required, the waterproof layer of coiled material is not used as a buffer layer as required, and the end of coiled material is not tightly sealed, causing cracks, cracks and water leakage.
The reasons for leakage of waterproof coiled materials are actually quite complicated. Some people still leak after many times of waterproof construction, indicating that the root cause of water leakage has not been found. Experienced workers and teachers will go to the site to investigate the leakage, find out the cause, and then find the correct solution. Only in this way can we solve the problem fundamentally.
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