The roof is leaking, and the property said it would make several holes in it. What happened?

No matter what method is used in property management, as long as it can solve the problem. In the past, roofing leakage was mostly covered with materials such as coiled material or emulsified mud. Because of the complicated causes of building water leakage, it is difficult to deal with it, the cost is high and the effect is not ideal. In recent years, with the development of science and technology, according to the formation mechanism of building water leakage, PU hydrophilic plugging agent was developed to solve the water leakage problem, and the effect was ideal, which solved the problem thoroughly in time. It has been widely used at present. According to what you said, it may be this way. After drilling the hole, insert the special needle and inject the plugging agent at high pressure. Filling cracks in buildings can prevent water leakage. If so, you can rest assured.