Whose family is responsible for the leakage of the water pipe on the roof of the bathroom

First of all, make sure that it is not the responsibility of your home, if the upstairs neighbor has made modifications to the sewer pipe during the renovation, then the responsibility must be theirs, if not, then eighty percent is the responsibility of the developer. You can go to the property to inquire about the specific situation during the renovation.

Now the common phenomenon, mainly the tile joint infiltration to make the shed leakage, generally the tile joint with white cement mixed with glue can be done, maintenance it, so that the tile joint no leakage can be.

If you have such a problem before moving in without decoration, it is recommended that you find a developer. If it is caused by a water leak caused by repairing it yourself, you may be responsible for it. It is recommended that you consult the relevant professional legal department for your actual situation.

Your bathroom is not waterproofed.

Make a hole in the leaking area, cut off the bottom section with a mineral water bottle, turn it upside down, and then use a hose to connect the mouth of the mineral water to the sewer.