There are many causes for leaks, and it is very difficult to determine where they are coming from.
If it leaks immediately after the building is completed, it may be due to a bad fit design or a construction error, but if it starts leaking about 5 to 10 years after the building is completed. Is often due to poor waterproofing.
Негізгі бет Тәжірибелік нұсқаулар және стиль In Japan, Waterproofing work to stop unstoppable rain leaks
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