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1. If the upstairs water is turned off and leaking, it means that there is a crack in the sewer pipe and seeps down from the upper layer of the upper floor.
2. Sometimes the waterproofing of the top layer is not done to penetrate downward, and when it penetrates downward through internal pipelines such as threading pipes, it can even penetrate several floors in a row, which is the most difficult to find. This is a matter of careful search through the property.
3. Reconfirm whether the main switch upstairs is not tightly closed, and turn on the lowest faucet in their house.
4. The connection of the sewer cracks under the action of thermal expansion and contraction, and this situation also occurs, I have repaired this kind of pipeline and shown you a picture.
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Is there only one upstairs?
If there are other upstairs that are not waterproofed.
It just so happens that the density of the cement slab on the roof of your house is relatively small, and it will leak in your home
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Take the heating into account, if it is floor heating, it may be caused by floor heating leakage!
Re-do the waterproofing upstairs, the waterproof material that does not smash the tiles, I have used the tile leakage of Sino building materials before, high and low temperature resistance, water pressure resistance, dry and wet alternation, the time is very long, the durability is particularly good, and the waterproof made by myself saves labor.
If you want to go upstairs to block this place, seal it with sealing materials, and explain the intention to the owner of the upstairs, and most people will understand and cooperate.
If you can't find the correct cause of the leakage, you can find a professional leakage team to take a look.
Bathroom roof leakage, generally speaking, the pipe will not come out. >>>More
If the upstairs cannot be coordinated, it is necessary to make the square ceiling into a funnel type to drain the dirty water to the sewer, and the whole fan to exhaust the odor to the outside.