Extruded plate (XPS) insulation in the exterior of the domestic construction has been widely used to analyze the reasons probably have two, one extruded plate with low thermal conductivity, thermal conductivity at 25 ° C in the 0.025 to 0.028W / (moK) , 
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 Extruded plate (XPS) insulation in the exterior of the domestic construction has been widely used to analyze the reasons probably have two, one extruded plate with low thermal conductivity, thermal conductivity at 25 ° C in the 0.025 to 0.028W / (moK) , and because of the small water absorption, while the thermal conductivity of long-term retention rate, the most economical (ie, the minimum thickness) materials to meet the requirements of building energy efficiency; strength. Some people think that is safer to do ceramic tiles of the extruded plate. 


 Removal of some important aspects to reflect the application of the current situation of the extruded plate and provide some of the existing problems measures. 

 The peeled handling. Ordinary extruded plate epidermis smooth, poor adhesion of the epidermis with the adhesive and the surface mortar. Resistant peking syndicate and Dow Chemical, etc. extruded plate peeled Process. The one hand, make the surface rough uniform favorable paste with tensile bond strength of adhesives and surface mortar, water, and freeze-thaw resistance strength in 0.25MPa above, greatly enhance the cohesion of the system, and increased reliability. On the other hand peeled processing uniform release a certain amount of internal stress. 

 Dimensional stability. Industry more than the extruded board for exterior insulation and poor dimensional stability due to the climate caused by the size of deformation, ultimately lead to the cracking of the facing layer coatings, as the EPS system. In fact, we can look at the elastic modulus from the three materials in the system, mortar approximately 15500MPa, EPS, about 4 ~ 6MPa, XPS, about 7 ~ 9MPa. EPS elastic modulus XPS slightly smaller, but compared with mortar elastic modulus, EPS and XPS are part of the same order of magnitude, the material between the constraints there will be no change in the nature. Does not exist mortar constraints of EPS to say better than the XPS binding effect, and many engineering examples to confirm this effect. 

 ≤ 2.0% of the dimensional stability of peeled extruded plate, Knauf did some research for this, set the expansion joints through exterior insulation system in the context of a certain area, you can effectively release the layers of the system specified in GB deformation. 

 GB. Extruded board application of a relevant national standard. Thus the number of applications have borrowed to the technical standards of expanded polystyrene board. In June 2009, the Shanghai Construction ASTRI and the National Building Standard Design Institute jointly organize the compilation of extruded plate plaster external wall insulation system of technical standards, while the resistant peking syndicate prepared GB 08CJ16 extruded board insulation system building construction "revision in August 2009 in the National Building Standard Design Institute. The industry is working to strengthen the application of norms and standards of the extruded plate, extruded plate so as to guarantee the rational use of external wall insulation. 
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