With the continuous improvement of people's living standards, people's requirements for their office environment and residential environment are also constantly improving. More and more people try to make their living areas in a good state. As a new building material product with environmental protection and energy conservation, building film is favored by the majority of users mainly because of its economic and practical value of energy conservation and environmental protection.

National policies have begun to favor the long-term development of energy conservation, environmental protection and low carbon:

(1) National policy background - energy conservation, environmental protection and consumption reduction (supporting glass membrane)

With the constant increase of energy consumption, all countries in the world are vigorously advocating energy conservation or making full use of the value of resources. As early as March 28, 2006, Wang Guangtao, the minister of the Ministry of Construction, said to the outside world that from then on, China will vigorously develop energy-saving buildings and green buildings, organize the implementation of building energy conservation projects, implement the local standard of 65% energy conservation, and gradually become a national standard. However, in modern buildings, the first thing glass should bear is the responsibility of energy conservation, because ordinary glass will let the hot sun penetrate into the room in summer, making you and your family feel very uncomfortable, and also making the air conditioning burden heavier, while in winter it will lose most of the indoor heat. But building membrane is a reasonable way to solve this problem. Building film is a kind of multilayer structure polyester film (called building film) pasted on the surface of flat glass. It can improve the performance and strength of glass to make it have the functions of heat preservation, heat insulation, energy conservation, explosion protection, ultraviolet protection, beautification of appearance, privacy protection, safety, etc., and is mainly used for car glass and building doors and windows, glass partitions, glass ceilings, etc. Compared with ordinary flat glass, tempered glass and semi tempered glass alone, the safety of film coated glass is greatly improved. At present, more than 60 countries in the world have used film glass.

(2) Large market space and strong extensibility

The existing glass area is huge. According to the estimation of the national authority, there is a glass maintenance market of more than 15 billion square meters in China, and more than 90% of them have no film. The existing building film market has huge space, which brings great business opportunities to project investors. In recent years, urban construction, energy-saving transformation, and glass area have increased rapidly. In order to improve the appearance of rooms, many residential and public buildings use glass products in large areas, such as large glass windows, floor to floor glass doors, and balcony windows, providing a broad market space for building membranes; According to statistics, the glass production industry in China produces about 13.44 million square meters of glass every year. In addition to 16% - 18% of the deeply processed glass, the remaining about 11.02 million square meters of original glass are directly used in construction, decoration and other fields, which is equivalent to the market space of building film increasing at an annual rate of 11.02 million square meters; The total area of public buildings in China is about 4.5 billion square meters, of which 99% are high energy consumption buildings. The energy conservation reconstruction project of buildings is extremely urgent. Building membrane has unique functional effects in building energy-saving transformation, appearance beautification, etc. A thin layer of Shengwei membrane can solve the energy-saving, safe and beautiful effects of building transformation, providing an effective way to save costs for all building owners.