How to prevent fires in color steel sandwich panel buildings?
The color steel sandwich panel is also called the metal surface insulation sandwich panel for construction. The upper and lower layers are colored coated metal sheets with a thickness of not less than 0.5mm. The middle core material can be made of combustible organic insulation materials such as polystyrene foam plastic. , polyurethane foam and non-combustible insulation materials such as rock wool.
Color steel sandwich panels are widely used, and can be seen in many places such as industrial plants, warehouses, cold storage, vegetable markets, and temporary offices. Most construction sites use color steel plates to build temporary dormitories for workers. This color steel plate house has an extremely low ignition point and poor flame retardancy. Once a fire breaks out, it is very easy to cause casualties.
Therefore, fires in color steel sandwich panel buildings occur from time to time and should not be underestimated. Let's follow the color steel plate processing manufacturers to learn what needs attention.
Fire characteristics of color steel sandwich panel buildings
1. The fire spreads quickly, and it is easy to cause multi-point combustion and comprehensive combustion. Once the color steel plate with polystyrene core material and polyurethane core material is ignited, the organic insulation material spreads rapidly inside the steel plate, and polystyrene has the characteristic of melting and dripping, which can be used as an ignition source to further ignite the combustible materials below it Burning occurs.
2. The building structure may collapse. The main reason is that the color steel plate house usually adopts light steel structure, and the steel structure will be deformed by the high temperature of the burning color steel plate, which will reduce its bearing capacity.
3. The smoke concentration at the fire scene is relatively high. Both polystyrene and polyurethane will be accompanied by thick black smoke when they burn, and toxic smoke will accumulate in the room, which will affect the escape and evacuation of personnel.
4. Fire rescue is relatively difficult. When a fire occurs in a color steel house, the thermal insulation material is simmering inside the metal panel. When extinguishing the fire, it is mainly to cool the outside of the metal panel, and it is difficult to directly extinguish the fire point.
The color steel sandwich panel building fire is so dangerous, how can we prevent it?
1. Select color steel sandwich panels in strict accordance with the requirements of the national fire protection code, and limit the application of color steel panels with organic insulation core materials.
2. Open flames are prohibited inside the color steel sandwich panel building with organic thermal insulation core material, and flammable and explosive dangerous goods cannot be stored.
3. Ensure the safety of the electrical circuits in the color steel plate building with organic thermal insulation materials, conduct regular inspections and maintenance, and strictly prohibit the use of electrical appliances in violation of regulations.
4. Special attention should be paid to construction safety when demolition and reconstruction of color steel sandwich panel buildings with organic thermal insulation core materials. Open flames are strictly prohibited on site and fire safety management is done well.
There are many fire hazards in the color steel sandwich panel building. After the color steel sandwich panel is burned, a large amount of thick smoke and toxic gas are produced, which poses a huge threat to people's life safety.
