Subsequently, the reporter consulted Zhang Zhiqiang, director of the operation department of Changchun Property Maintenance Fund Management Center. He explained that the property fees paid by the owners have included the daily maintenance costs of public parts and public facilities and equipment in the community. If the owner has not stayed for more than 5 years since the date of occupancy of the commercial house, the leakage of the owner's roof shall be repaired by the developer free of charge. For more than 5 years, and the damaged area of public parts, public facilities and equipment exceeds 30%, or the maintenance cost reaches 20% of its original cost, and it is necessary to use special property maintenance funds for medium repair or overhaul. Obviously, Ms. Zhang's home has been occupied for more than five years. As for the damaged area and maintenance cost of waterproof layer, staff will be sent to check it in the near future. Zhang Zhiqiang further explained that there is an emergency maintenance fund in the special property maintenance fund, and a very important prerequisite for activating it is that all owners of the building have paid the property maintenance fund. He checked the payment of the property maintenance fund of the owner of Ms. Zhang's building and found that only 57 of the 70 owners of the building had paid, so they could not apply for emergency maintenance fund, but only for non-emergency maintenance fund. Zhang Zhiqiang said that if the owners' committee doesn't act when applying for opening the non-emergency maintenance fund, it can organize several families upstairs, inside the building and downstairs to set up maintenance teams, and handle relevant procedures in the community according to the provisions of the Management Measures for Changchun Property Special Maintenance Fund, with the building expansion joints as the boundary and the roof leakage unit as the whole.