The hidden dangers of traditional external wall insulation materials

The hidden dangers of traditional external wall insulation materials

At present, there are mainly two types of external thermal insulation materials used in buildings: one is polystyrene foam, and the other is extruded polystyrene foam. These two materials are widely used because they have better insulation, water resistance and air-tightness. However, through certain experimental tests, it is found that if these two materials are not modified by flame retardant chemical molecules, but only part of the flame retardant is added to the materials, once they encounter a flame, it is easy to cause them to burn, and they are burning. In the process, corresponding toxic gas is generated, which affects people's life safety. In addition, in the case of high temperature, polystyrene foam and extruded polystyrene foam are easy to cause a crash, that is, they have the hidden danger of causing fire.

Fire prevention is one of the key tasks in the construction process, and it is necessary to strengthen the standardization of workers' operation. Under normal circumstances, the fire of the outer insulation material is caused by accidental mistakes or illegal operations of the workers. There are many different suggestions and strategies for the specific methods of fire prevention. At present, the commonly used external wall insulation materials are polystyrene foam and extruded polystyrene foam, both of which are flammable, but that is to say, there is a corresponding fire hazard. During the construction of the building, the appearance of open flames cannot be completely avoided, for example, sparks generated during electric welding. Therefore, there is a source of fire in the construction site. Since combustibles and fire sources are two factors that cause fires, we cannot prohibit them. Therefore, fires caused by external wall insulation materials are actually accidental inevitable. Based on the above discussion, it can be concluded that there are two main factors that cause the external wall insulation material to catch fire: the fire source is an external factor. During the construction process, improving the standardization of the construction can reduce the probability of fire; polystyrene foam The two combustibles and extruded polystyrene foam are inherent factors. In order to prevent the occurrence of fire, only use non-combustible or non-combustible external wall insulation materials, which is an effective solution strategy.

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