1, joint filling: most of the water leakage in the roof is caused by cracks, so when filling the joints, it is necessary to fill the gaps with the joint filling paste first, and then brush the waterproof paint after drying. If the gap is small, you can paint directly.
2. Waterproof coating: Waterproof coating is a common material for roof leakage. First, water-based waterproof coating should be applied twice on the gap, at least 20cm above. In this way, the adhesion and long service life can be ensured, and it is also necessary to pay attention not to get caught in the rain within 12 hours.
3, waterproofing membrane: sbs waterproofing membrane can also be used for roof leakage, you can use better quality, such as polyester tire waterproofing membrane, waterproof effect is good, the price is not expensive.
4. Roofs in rural areas
If the roof leaks in rural areas, it is recommended to use cf-2000 high-efficiency composite waterproofing agent to repair it, because this material is environmentally friendly, has a long service life and is affordable. Most roofs in rural areas are used to dry grain. Never repair them with asphalt. Asphalt has a strong carcinogenic effect, and it is harmful to people's health if it penetrates into grains.
5, pouring concrete
If the roof leaks, you can also directly pour a layer of concrete on the roof, or you can directly pour a layer of concrete on it for protection after the waterproofing membrane is finished. The concrete method is: firstly, the roof is paved with fine steel bars, and then concrete is poured on it with a pump truck. After pouring, it needs to be cured for about half a month, and the surface is covered with a cover.