At present, insulation materials for building exterior walls are one of the important choices for indoor decoration materials, as they often cause fires. For example, the fire in the CCTV building was caused by the use of flame retardants made of organic insulation materials. Due to incomplete combustion and pyrolysis of refractory materials, more smoke and toxic gases are generated, and the smoke inhaled by most people in the event of a fire can suffocate the toxic gases that cause death.

Therefore, the external wall insulation materials that cause danger in building fires are very high, which can easily cause major accidents and casualties. Based on the author's work experience, this article discusses the causes and countermeasures of fires. a. Analysis of the causes of external wall insulation materials is an industry standard with varying product quality. At present, the production and use of outdoor insulation coupling materials are disorderly. The organic insulation materials currently used in the construction field mainly include polystyrene board (EPS), extruded polystyrene board (XPS), and polyurethane (PU). Their biggest advantages are light weight and insulation, Maintenance.

The biggest drawback is the difference in fire safety, which can easily age and burn. Due to its widespread application in outdoor insulation materials such as secondary, low-cost, thermal conductivity, building performance, and combustion performance, such as industrial standard coefficients, the latter is not yet perfect, and some manufacturers also have defects in controlling loopholes, The production of insulation materials is a short requirement for building fire protection design, and the fire protection level and fire protection limit cannot meet national standards. The product is pushed to the market, which is a congenital hidden fire hazard in buildings.

Secondly, the construction cycle is long and there are safety hazards at work. For the construction industry, energy-saving insulation is a national policy, and wall insulation and achieving energy-saving are very important in buildings, so building insulation materials have a very wide range of applications. In reality, construction projects such as high-rise buildings and large sports venues typically take two to three years, with different cross construction processes and inconvenient management. Some management personnel overlook the fire hazards and screen control of temporary water fire control groups, focusing on pursuing construction time and reducing costs.