- 本站编辑：杭州博恩环保科技有限公司发布日期：2019-12-18 19:17 浏览次数：
Extrusion plate as the main material of the insulation system, cracking is also relatively common, serious is the whole will fall off, what is the reason? Although the fire-retardant extruded board has good heat preservation and water-proof performance, due to its high strength, large deformation stress, smooth surface, hydrophobic and difficult to absorb, the adhesive that binds the board to the wall has poor adhesion, etc. There will certainly be more serious quality problems. The density and strength of the extruded plate of the fire-retardant extruded plate are high, and the deformation stress produced by the deformation of the plate itself and the temperature difference deformation is also high Squeeze or pull on the plate joint, it will cause the plate joint crack, water seepage, cold, after a long time, it will cause the decline of weather resistance adhesion, make the external insulation system peeling off, off. Another reason is that the thermal conductivity of the fire-retardant extruded board is too different from that of the crack-resistant mortar, which makes it more prone to crack problems.