What are the warranty terms and service life of houses stipulated by the state?

According to the provisions of the Real Estate Law, real estate development enterprises should provide the Buyer with the Residential Quality Guarantee and the Residential Instruction Manual when the commercial housing is delivered for use. The former is the legal document of commercial housing quality responsibility, which shall specify the quality grade, warranty scope, warranty period and warranty unit verified by the engineering quality supervision unit. The residential warranty period is calculated from the date when the developer delivers the residential building that has passed the completion acceptance. The purchase of commercial housing as a whole shall ensure that its foundation and main structure are within a reasonable service life. Under normal use, the warranty content and warranty period of all parts are: roof waterproof for 3 years; Leakage of wall, kitchen floor, basement and pipeline 1 year; Wall and ceiling plastering layer falls off 1 year; The ground sags and cracks, resulting in large-area sand production 1 year; Cracked doors and windows, damaged hardware, sanitary ware 1 year; The pipeline is blocked for 2 months; Lighting and electrical switch for 6 months; The warranty period of heating and cooling systems and equipment is heating period or cooling period; The warranty period of other parts shall be agreed by both parties. Legal basis: "Measures for the Administration of Commercial Housing Sales" Article 33 A real estate development enterprise shall be responsible for the quality warranty of the commercial housing it sells. The parties shall stipulate the warranty scope, warranty period and warranty responsibility in the contract. The warranty period is calculated from the date of delivery. The warranty period of commercial housing shall not be less than the warranty period stipulated in the quality guarantee issued by the construction contractor to the construction unit; If the duration is less than the minimum warranty period stipulated in the Regulations, it shall not be less than the minimum warranty period stipulated in the Regulations.