Service life of gas station carport

The service life of the gas station carport is 25 years. According to the relevant information, professional testing institutions have evaluated the awnings that have been used for many years, and if there is danger, construction personnel will be arranged for construction. The design service life of the awning structure is 25 years, the safety level of the building structure should be Grade II, and the seismic fortification category should be implemented according to Class C buildings. Tempered glass awnings have no problem for 30 years, sun-resistant awnings for 6 or 7 years and iron awnings for about 4 years.