In recent years, many fire accidents caused by building […]
In recent years, many fire accidents caused by building insulation materials have triggered huge responses in the industry. After suffering major losses, some construction contractors have begun to transfer risks in the contract to downstream insulation material suppliers, explicitly requiring manufacturers to provide a shelf life ranging from 10 to 25 years. Seeking transformation and upgrading is a "test question" that urgently needs to be answered by new-type thermal insulation material manufacturing enterprises.
It is understood that the organic insulation materials currently used in the construction field are mainly three types: polystyrene board, extruded board and polyurethane. However, these materials are not only very easy to be ignited, but also have a very fast burning speed. Once they are ignited on the periphery of the building, a large-scale three-dimensional fire will soon form. These organic insulation materials will also generate a large amount of toxic gases after they are burned. It is very difficult, which poses a huge threat to the safety of people's lives. Some industry experts said that the state advocates the use of new energy-saving and emission-reducing insulation materials, and even qualified products have great safety risks. For example, he said that the property right of the house is 70 years. In fact, less than 20 or 30 years, the surface of the wall will fall off, and the life of the insulation material product will not reach that long, so let alone use it. Qualified product too.
In order to eliminate the fire hazards of the building's external insulation system from the source and curb the high incidence of this fire accident, the Fire Bureau of the Ministry of Public Security urges the national public security fire departments at all levels to strengthen the fire supervision and management of civil building's external insulation materials, and Combustion performance is included in the audit and acceptance content; at the same time, fire departments in various places are required to strictly implement the "Temporary Provisions on Civil Building Exterior Insulation Systems and Fire Protection of External Wall Fire" when conducting fire design review, fire acceptance and spot checks of civil construction projects. All materials used in building exterior insulation are A grades. In this regard, industry insiders said that the upgrade of energy-saving materials for building exterior walls is imminent, and the market's call for fire-retardant and heat-insulation materials and technologies is getting higher and higher. This has also forced the market and enterprises to seek technical upgrades and seek new ones. Way out.
In fact, the fire protection of external wall insulation is a comprehensive problem. We can not only stress fire prevention and relax the requirements for thermal insulation effects, nor can we only require thermal insulation effects and neglect fire prevention performance, nor can we save energy because we are afraid of fire. . The fire prevention performance of thermal insulation materials cannot be relied upon to prevent fires, and the four branches of building science, materials science, fire science and environmental protection science should be organically combined.