The owner of the factory. According to the provisions of China's Property Law and Construction Law, the 20-year maintenance and repair responsibility of the workshop should be borne by the workshop owner. If the tile house leaks and collapses, the responsibility should be borne by the owner. Factory building refers to the building used by industrial enterprises to produce, process and store products, which usually includes production workshops, warehouses, offices and supporting facilities, and has certain production, use and management functions.