As we all know, because the top floor is a place frequented by water, the waterproofing process must be indispensable. If there is no corresponding waterproofing measure, over time, rainwater will easily penetrate into the interior through the top layer, so in order to use the house safely, you must Do the waterproof work on the top layer, so as not to affect the daily life, then how to do the best roof waterproof ? Let's take a look with the editor.
How to do the best roof waterproof
First of all, the aging and waterproof surface layer of the top layer that needs to be operated must be cleaned and cleaned, and then the base layer treatment should be performed. Usually, 1: 3 cement mortar leveling layer is required, and 1: 1 cement mortar trench joint detail treatment is required. , Rainwater outlets, parapet walls, wall-penetrating pipes and Other nodes are first strengthened, the longitudinal slope along the ditch and eaves should not be less than 1%, the water drop at the bottom of the ditch should not exceed 200mm, and other important details should be treated with soft treatment and sealed with grease .
4 precautions for roof waterproof construction
1. Ruggedness requirements
Because it needs to bear the load brought by wind and rain, but also to transfer the construction load, it must have sufficient strength and hardness. For the engineering design requirements, 1: 3 cement mortar is used as the leveling layer. The water-cement ratio should be strictly controlled during construction and moderate Master the consistency, water content, etc.
2. Flatness requirements
The flatness of the flat layer needs to be tested with a 2M ruler. The gap of the plane should not exceed 3MM. At the same time, the surface layer must be flat and the thickness is consistent, so as to prevent the water of the roof area and clear the leakage, so it is best not to bury the pipe in the flat layer .
3. Dryness requirements
Generally speaking, the moisture content of the base layer should not exceed 6%. If it does not meet the requirements, it will have a great impact on the later construction. The lighter will play the role of isolation, damage the adhesion, and the heavy will cause hollow cracking and damage the waterproof effect, so In order to ensure the waterproof effect, the moisture content of the grassroots must be effectively controlled.
4. Cleanliness requirements
The base layer must be kept clean and tidy. After cleaning, the dust left in the gaps and corners should be blown off with compressed air. For oil stains, welding stains, brushes, and rust spots, the sand should be cleaned, and only the surface should be kept clean. In order to ensure that the waterproof coating can effectively penetrate into the cement mortar, strengthen the adhesion of the waterproof coating and the base layer, and improve the waterproof ability.
Summary: Well, that's about roofing how to do best describes the content, hoping to provide some help to you, I believe in the future of the roof waterproofing how best to do the course, my friends will be more handy, build their own satisfaction Effect.
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