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There should be no damage, but the smell is also unpleasant, how to live, or re-do the wall again, in addition, you have to solve the big problem of waterproofing the bathroom.
1. All look for property management companies or upstairs residents. If people don't care about you, just remember to use an umbrella when you go to the bathroom.
The reason for this situation is that the waterproofing is not done well - when there is a lot of water in this and the part, it will seep into the inside of the wall. The second is the water pipe - also near this location, there is a water pipe rupture, this situation is rapid penetration, will not gradually become damp. >>>More
Won't be good on its own. Wood rises when it encounters water. >>>More
It's normal for your son to do this, protest.
Generally depends on what the damp part of your wall is like If it is locally damp and not at the top, it may be that your bathroom waterproofing is not done well, if it is at the top, it may be the waterproofing problem upstairs.