Is the house responsible for blocking the property?

Have the responsibility, if it is a house quality problem, the developer also has the responsibility. According to the "Regulations on Quality Management of Construction Projects", the minimum warranty period for leakage prevention of roofing waterproof projects, toilets, rooms and external walls with waterproof requirements is 5 years; Only negotiate with the developer. The sewer pipe on the roof should not leak in principle. If you want to be reasonable, go to court and sue your neighbor for blocking the downpipe. If it's too much trouble, open the blocked place. Property is not a law enforcement unit, and some people can only admonish illegal properties, not to mention the property has scruples, and he will not pay property fees if it is strictly managed.