Warranty period of foundation and main structure

Legal analysis: According to the reasonable service life stipulated in the design, the average building is 50 years, and the important building is 100 years.

Construction project quality warranty system refers to the quality defects caused by survey, design, construction, materials and other reasons within the specified warranty period after the completion acceptance procedures. The construction contractor is responsible for maintenance, rework or replacement, and the responsible unit is responsible for compensation for losses. The implementation of quality warranty system in construction projects is an important measure to implement the quality responsibility of construction projects.

Legal basis: Regulations of People's Republic of China (PRC) Municipality on Quality Management of Construction Projects.

Thirty-second construction units should be responsible for the repair of construction projects with quality problems or construction projects that fail to pass the final acceptance. Article 40 Under normal use conditions, the minimum warranty period of a construction project is: (1) the reasonable service life of the project specified in the design documents for the foundation project, the foundation project and the main structure project of the building; (2) 5 years for roofing waterproof works, toilets, rooms and external walls with waterproof and anti-leakage requirements; (3) The heating and cooling system consists of two heating periods and cooling periods; (four) electrical pipelines, water supply and drainage pipelines, equipment installation and decoration works, for 2 years.

Forty-first construction projects in the warranty scope and warranty period of quality problems, the construction unit shall fulfill the warranty obligations, and be responsible for the losses caused. Construction project quality deposit (warranty deposit) refers to the funds agreed by the employer and the contractor in the construction project contract, which are reserved from the payable project funds to ensure the contractor to repair the defects of the construction project during the defect liability period. The warranty period is calculated from the day after completion/handover acceptance.