Practice has proved that, if the insulation layer high water absorption material as the adhesive material (fully adhered) or plaster leveling materials, engineering often damp, freeze-thaw damage and other quality problems after two to three years. I invite by the relevant departments involved in the quality of Xinjiang, Inner Mongolia and Anhui part of the outer insulation engineering analysis, tenants reflect poor insulation effect, the anatomy of the project, we observed that the works are more than two years of construction, without exception high water absorption materials are used as a full bonding material polystyrene board and plaster leveling material, insulation board manufacturer, wall surface is substantially free of cracks, but full adhesive layer and wipe the surface screeds are very moist, Liaocheng insulation board manufacturer, and precipitates out of water phenomenon. After analysis, we believe that the polystyrene board with high water absorption over sticky adhesive material, two to three years, the new building foundation wall due to the outward diffusion of water saturated with water vapor, easily lead to full absorption of high viscosity material moisture absorbent layer; at the same time, when the water vapor moved from indoor outdoor low temperature side to side, if the plaster leveling material is also high water absorption materials, rubber insulation board manufacturer, is often easy to wipe the surface leveling layer condensation water accumulation phenomenon , insulation board factory direct, so that both sides of the polystyrene board damp, moldy and even led to the destruction insulation properties and other issues. A, XPS extruded insulation board Features 1, excellent thermal insulation performance lasting a thermal conductivity of 0.028 0.030W / (m? K) 2, high compressive strength surface compressive strength 2 00-5 00KPa / cm23, very low 2 3 ℃ temperature water absorption, soaking 96 hours water absorption less than 1% 4, preferably 7 0 ℃ dimensional stability thermostat 48 hours later, the size of the deformation rate of less than 2%