The extruded board has a good thermal insulation effect. The insulation layer is located on the outside of the building envelope, which reduces the stress and stress accumulation caused by structural deformation due to external temperature changes, and avoids rain, snow and ice. Create continuous and discontinuous cladding structures for the exterior walls of the building envelope, and the wall is given extremely high thermal resistance, thereby creating excellent low energy consumption, that is, energy-saving effect.

XPS extruded board is mostly used for home decoration and ground covering. First of all, the extruded board is not very hard. When it is laid indoors, people's feet will have a certain buffer, making people feel particularly comfortable. Because furniture is placed indoors, it takes many years of trampling activities. Bulk density is an important indicator of extruded board. It is directly linked to compressive performance. The bulk density of white crystal board for floor heating is 35 to 36KG/m³, and the bulk density of good blue board is also this value, but due to the problem of raw materials of blue board, even if the bulk density is the same.

Rock wool board and rubber-plastic insulation board use fiber cement board for insulation, and the weight is only 1/15 of the same thickness brick wall and 1/10 of the block wall, which is conducive to structural earthquake resistance and can effectively reduce the cost of foundation and main structure. The texture of extruded board is relatively light, and it is very simple and convenient to use and operate. It is not easy to be damaged during transportation, installation and cutting.

The insulation effect of extruded board is very good and the chemical properties are very stable. An important indicator of extruded board, and it is directly related to compressive strength. The bulk density of graphite extruded board for floor heating is 35 to 36KG/m3. The bulk density of good extruded board is the same value, and the bulk density of poor extruded board is about 25KG/m3-30KG/m3.