I just got the keys to the auction house. After the rain, I found that the wall was leaking. The property pushed a little waterproof paint from the inside and said it was repaired. But how can externa

I just got the keys to the auction house. After the rain, I found that the wall was leaking. The property pushed a little waterproof paint from the inside and said it was repaired. But how can external wall seepage be repaired from the inside? For waterproof countries, it is a five-year warranty. This requires developers to be responsible for the demands of safeguarding rights.

Building leakage is normal, but if there is no professional leakage maintenance in place, it is easy to have repeated leakage in the later period. There is a saying called annual maintenance. When the external wall leaks water, it is best to apply waterproof material to the external wall facing the water surface. Silicone waterproof agent and cement-based waterproof coating can be used, which requires professional construction personnel. If the leakage is made up from the inside, it is also possible. It is necessary to select a special leakage-patching material for the back water surface, UD00 1 high-strength, special and long-lasting impervious material. This material has a good anti-seepage effect as the back water surface.