The common extruded board is a rigid board that is continuously extruded and foamed through a special process, using polystyrene resin as raw material. Its interior is an independent closed bubble structure. , Airtight, lightweight, corrosion-resistant, long service life, low thermal conductivity, and other excellent environmental protection thermal insulation materials.

    Typically, extruded polystyrene boards are more expensive than PVC foam sheets. At the same time, there is a certain gap in the production process between the two. The extruded board has a simple process, but the strength of the extruded polystyrene board is higher than that of the foam board, and the thermal insulation performance of the extruded board is much better than that of the foam board.

    The strength of the extruded board is higher than that of the foam, and the flame retardant effect of the extruded board is more prominent. Compared with the extruded board, the flame retardant performance of the foam board is relatively poor. Therefore, it can be seen as a whole that although both are more commonly used in energy-saving building materials, they are used as floor-heating insulation materials. The performance of the extruded board is much better than that of an expandable polystyrene foam board.