1. During the maintenance period, the development engineering department is responsible for coordinating repairs by the construction unit;
2. During the maintenance period, the property owner can help the owner coordinate, notify, and notify the engineering department;
3. Outside the maintenance period, maintenance costs should be withdrawn from the company's maintenance fund. To withdraw the public maintenance fund, the Housing Authority has a system and property management system that can help owners approve, report, supervise and inspect to the Housing Authority.
Warranty period for waterproofing of external walls of commercial housing
Article 6 of the "Quality Warranty Measures for Housing Construction Projects" No. 80 of the People's Republic of China and the Ministry of Construction stipulates: Construction units and construction The unit shall stipulate the warranty scope, warranty period and warranty responsibilities in the project quality warranty letter. The warranty scope and warranty period agreed by both parties must comply with relevant national regulations.
According to Article 7 of the "Quality Warranty Measures for Housing Construction Projects" No. 80 of the Ministry of Construction of the People's Republic of China and the People's Republic of China: Under normal use, the minimum warranty period for housing construction projects is:
p>1. Foundation and main structure projects, the reasonable service life of the project specified in the design documents;
2. Roof waterproofing projects, bathrooms, rooms and exterior walls with waterproofing requirements Anti-leakage, for 5 years;
3. Heating and cooling system, for 2 heating or cooling periods;
4. Electrical system, water supply and drainage pipes , equipment installation is 2 years;
5. Decoration project is 2 years.