The roof of the newly bought house leaks. How many years is the warranty period?

According to Article 40 of the State Council's Regulations on Quality Management of Construction Projects,

Under normal use conditions, the minimum warranty period of construction projects is:

Roofing waterproofing works, toilets, rooms and external walls with waterproof requirements shall be impervious for 5 years.

Extended information Article 41 If a construction project has quality problems within the warranty scope and warranty period, the construction unit shall perform the warranty obligations and be responsible for the losses caused.

Article 66 If the construction unit violates the provisions of these Regulations, fails to perform the warranty obligations or delays the performance of the warranty obligations, it shall be ordered to make corrections, and be fined between 654.38 million yuan and 200,000 yuan, and shall be liable for the losses caused by quality defects during the warranty period.

References:

Baidu Encyclopedia "House Warranty"