Maintenance of public facilities
The reason for water leakage is that rainwater pipes are public facilities and the property should be responsible for maintenance. Maintenance costs and losses should be paid from the public maintenance fund, and those without this fund should be borne by relevant parties (including you).
Water leakage treatment method
In case of water leakage, the property owner and the upstairs owner shall be informed at the same time if the floor or the contact part between the floor and the wall leaks; If there is water leakage on the wall at a certain distance under the external wall or floor, the property shall be notified. Who should bear the relevant expenses and losses first, and then the responsible person can claim compensation from the relevant units according to the situation.
Responsibility assumption
For example, the ceiling of the living room next to the bathroom bulges because of the waterproof leakage of the upstairs bathroom. After receiving your notice, the property owner and the upstairs owner should repair immediately, and the expenses and losses incurred should be borne by the upstairs owner first. If the house is still under warranty, the upstairs owner can claim compensation from the developer. If you pass the warranty period, you have to bear it yourself.