Reflection on the Fire of External Wall Thermal Insulation Material


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2015-07-08

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Reflection on the Fire of External Wall Thermal Insulation Material

In recent years, with the country's vigorous advocacy of low-carbon economy, energy conservation and environmental protection have become the focus of common concern of the whole society. AndExterior wall insulation materialAs an important measure of energy saving and emission reduction, it is used by a large number of construction projects. The external wall insulation technology not only promotes building energy saving, but also brings new hidden dangers to people's life safety. In recent years, the rapid spread of fire caused by external wall insulation materials has not only aroused widespread public concern, but also caused the industry to study and pay attention to the safety performance of external wall insulation materials.
Analysis of the causes of fire of exterior wall insulation materials is that the industry standards are not perfect and the product quality is uneven. At present, the production and use of external insulation materials are chaotic. The organic insulation materials currently used in the construction field mainly include polystyrene board (EPS), extruded board (XPS) and polyurethane (PU). Its biggest advantage is light weight, heat preservation and good heat insulation. The biggest defect is poor fire safety, easy to aging, easy to burn. The former two are widely used because of their low price, and the latter is slightly better in terms of thermal conductivity, construction performance and combustion performance. The industry standard of external wall thermal insulation materials is not perfect, and there are loopholes in the management of individual manufacturers. The external thermal insulation materials produced can not meet the requirements of building fire protection design, and the fire resistance rating and fire resistance limit can not meet the national standard. After the product is put on the market, it lays a congenital potential safety hazard for building fire accidents. The construction period is long, and the hidden dangers of the work site are numerous. For the construction industry, energy-saving insulation is a national policy, and wall insulation is an important means to achieve building energy conservation, so the application of building insulation materials is very extensive. In reality, the construction period of high-rise buildings, large stadiums and other buildings is generally two to three years, and various construction processes cross each other and management is inconvenient. Individual managers ignore the investigation and rectification of fire hazards on site and the setting of temporary water for fire fighting, and focus all their energy on catching up with the construction period and reducing costs.
The regulatory authorities should strengthen the standardized management of building exterior wall insulation material production enterprises, construction enterprises and building insulation material market, carry out wall insulation system certification, and introduce permits, insurance and other systems to improve the safety of building wall insulation." When carrying out fire supervision and inspection, the fire department should convey the awareness of fire prevention to the management personnel of the construction site, and also require the construction site to ensure that each working face has a fire water source in case of fire. Only strict construction site management, in order to maximize the elimination of fire safety hazards. Three is to update and improve all kinds of fire fighting and rescue equipment, enhance the ability to attack. Only by carefully drawing lessons from domestic fire accidents, recognizing the root causes of fires caused by external wall insulation materials, and taking practical and effective measures, the city's fire safety can be based on the safety of people's lives and property can be guaranteed.

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