Fireproof grade and use effect of foam sandwich board
Foam sandwich board is a composite material widely used in buildings, cold storage and other industrial facilities. They are usually composed of two layers of steel or aluminum plates sandwiching foam materials (such as polystyrene or polyurethane). Its fire resistance and use effect are important factors affecting its performance in practical applications.
Foam sandwich board is fireproof, and the fireproof grade is B2. It is also called foam board, EPS panel, expandable polystyrene foam panel, etc. It is a white object made of expandable polystyrene beads containing volatile liquid foaming agent, which is heated and preheated in the mold. It has the structural characteristics of tiny closed cells and is mainly used for building walls, roof insulation, composite board insulation, cold storage, air conditioning, vehicle and ship insulation, floor heating, decorative carving, etc.
EPS panel is the abbreviation of expandable polystyrene panel. It is made of raw materials through pre-hair, aging, molding, drying and cutting. It can be made into foam products of different densities and shapes, and foam boards of different thicknesses can also be produced. It can be used to manufacture exhibition halls, commodity cabinets, advertising signs and toys. In order to meet the national requirements for building energy conservation, it is mainly used for exterior wall insulation, interior wall insulation and floor heating.
The use effect of foam sandwich board:
1. Protect the main structure of the building and extend the service life of the building. Because external insulation is to place the insulation layer outside the structure, it reduces the pressure caused by structural deformation caused by temperature changes, and reduces the erosion of the structure by harmful substances and ultraviolet rays in the air.
2. In the past, internal insulation was inevitable, while external wall insulation effectively prevented the generation of thermal bridges and condensation.
3. In order to increase the tidal temperature of the wall, a steam insulation layer is generally required for internal insulation, while the temperature permeability of the external insulation material is much stronger than the main structure. Condensation generally does not occur inside the wall, which increases the overall wall temperature of the structural layer and further enhances the thermal insulation performance of the wall.
4. It is conducive to maintaining stable room temperature and adopting external wall insulation. Since the structural layer with large heat storage capacity of the wall is inside the wall, it is conducive to maintaining stable room temperature.
5. Increase the usable area of the house. It can avoid the damage to the insulation layer by secondary decoration.
Foam sandwich panels are widely used in various types of buildings due to their excellent thermal insulation, lightweight construction and good acoustic effects. However, their fire resistance is relatively low, especially polystyrene and polyurethane materials may have fire hazards at high temperatures. Therefore, when choosing foam sandwich panels, their fire resistance rating and use effect should be comprehensively considered according to the use environment and specific needs. At the same time, for projects with higher fire protection requirements, it is recommended to give priority to rock wool sandwich panels or other materials with higher fire resistance to ensure the safety and stability of the building.