What procedures are needed for waterproof maintenance in residential quarters?

The procedures required for waterproof maintenance of residential areas shall be applied by the owners' committee for the use of special funds for property maintenance, and the maintenance plan shall be entrusted to professional maintenance units for implementation.

The staff of the Municipal Construction Bureau replied: According to the provisions of the Consumer Protection Law, the quality warranty system is implemented for commercial housing. Under normal use, the anti-leakage warranty period of roofing waterproof works, toilets, rooms and external walls with waterproof requirements shall not be less than eight years, and the warranty period of other parts shall be implemented in accordance with state regulations; The warranty period shall be calculated from the date when the commercial house is delivered to the consumer, and special funds for property maintenance shall not be used during the warranty period.