After the 21st century, due to the rapid development trend of modernization, there has been an unprecedented change in our way of life. Everyone began to enjoy provided by modernization to the life of all kinds of convenient way, also with the bear in the process of modernization and rapid development of the natural environment is damaged, the global climate warming, the destruction of the earth's atmosphere, many of the dissolving of ice, higher horizontal plane, and so on, has obvious harm to everybody and modern life. Now the whole world is vigorously advocating green environmental protection, so that everyone can live in an environmentally friendly earth. Therefore, buildings need to put on cold insulation coat -- external wall insulation layer, can faster block the building and the external temperature, in order to achieve the goal of energy saving and consumption reduction.

Whether the external wall insulation board is fireproof

The answer is definitely fire prevention, building insulation can effectively reduce energy consumption. Traditional exterior insulation boards are organic materials, such as extruded boards and phenolic boards, which are easy to burn. In recent years, there have been many huge fires caused by external insulation materials. In view of this situation, the state introduces relevant policies to advocate the fire protection grade of external wall insulation materials to reach GRADE A.

1, exterior fire insulation board system structure mainly includes: bonding layer, insulation layer, coating layer, decorative layer and accessories. The finishing layer should be light functional coating such as finishing mortar, decorative mortar or water-based exterior wall coating with good air permeability.

2, exterior wall fire insulation board to carry out building energy conservation, but also can improve the indoor environment, is not only more stable indoor thermal environment, but also more comfortable, and greatly improve the level of living environment. Thermal insulation materials can provide a good housing environment for people.

3, exterior wall insulation rock wool composite board is a new type of exterior wall insulation board composed of magnesite fireproof board as the surface layer and rock wool as the core layer. Exterior wall insulation rock wool composite board is specially designed for the building exterior wall insulation thin plastering system and production, can be used as a fire isolation belt, significantly improve the building exterior wall fire prevention function.

At present, the most common wall insulation material on the market is polyethylene insulation material. As engineering building exterior wall insulation, the thermal insulation characteristics of this kind of material is obviously very good. At present, this kind of EPS material is not high utilization rate in the field of external wall insulation of engineering buildings, mainly because of the flammability of this kind of material when the building fire occurs. Little do they know about this kind of wall insulation material flammability and fire accident characteristics are not deeper and specific scientific research. Only some scientific research projects have done some in-depth analysis, with mathematical analysis model of external wall insulation board to achieve a scientific study of fire accident characteristics and fire diffusion.

This scientific research project also shows that EPS polystyrene insulation board in the ignition and fire diffusion is also affected by various elements and levels of harm. But if it is very high for flame retardant grade building regulations, now there are already many wall heat preservation material can be selected, such as foam concrete, foam sandwich glass materials and vacuum insulation board, rock wool board, composite rock wool board, phenolic insulation board, the exterior wall insulation board is all to be able to achieve A level of flame retardant level. Most of these products are inorganic thermal insulation materials, with fire-resistant characteristics. Therefore, these exterior insulation boards are undoubtedly better for the prevention of infectious diseases.