We build high-quality tent buildings based on SNIPA SP20.13330.2016 "Loads and impacts", so they can be operated as capital and have a service life of 50 years or more. The only question that may occur during long-term operation is to replace the enclosing structures. For example, for the awning structure, the replacement of the tent itself may be needed after 15 years, but these are small costs compared to the cost of all construction. And the metal structures themselves will serve for decades.