The so-called external wall insulation material refers to placing high-efficiency insulation materials on the outside of the main structure of the external wall. It is a composite external insulation material, which is equivalent to the entire building. Using new technologies to insulate the building maintenance structure at a high level is the main measure for building energy conservation. The insulation function of the external insulation system is a key technology for building energy conservation. This technology can effectively solve the energy loss caused by the temperature difference between indoor and outdoor in winter and summer in China. It represents the development direction of our country's energy-saving and insulation technology. The system integrates functions such as insulation, waterproofing, and decoration, and is suitable for new industrial and civil buildings, and can also be used for energy-saving renovation of old buildings.

Compared with other building energy-saving technologies, external insulation will not produce "thermal bridge" and "cold bridge" phenomena, and has good building energy-saving effects. In winter, when indoor heat passes through the wall insulation material, it is isolated. When the indoor temperature drops, the heat in the wall will be released to adjust the indoor temperature. In summer, the external insulation of the exterior wall can also prevent solar radiation and external heat from entering the room, making the indoor environment of the building "cool in winter and cool in summer", pleasant in all seasons, and the indoor environment and the physical properties of the house are improved. It has been significantly improved.

External wall insulation materials can also play a role in protecting the main structure. External insulation materials are placed on the outside of the main structure to reduce the impact of external temperature, humidity and radiation on the main structure. Under the repeated effects of high temperatures in summer and low temperatures in winter, the main body of the building often breaks due to thermal expansion and contraction, shortening its service life. External insulation can minimize this adverse effect. Impact. External wall insulation technology also reflects the convenience and speed of renovation of old building facades. External insulation can be centrally renovated without indoor construction, without affecting the normal work and life of indoor residents. In addition, in external insulation technology, insulation materials are placed outside the main structure, saving indoor space and effectively increasing the use area.

External wall insulation materials have a protective effect on the main structure. External climate conditions cause large changes in the temperature inside the wall. This change occurs in the outer insulation layer of the outer wall, thereby avoiding large temperature changes in the internal main structure, thereby reducing the thermal stress of the wall and extending the use of the wall. Life. In decoration, the inner insulation layer is easily damaged, and external insulation can avoid this problem.