Performance Comparison editing insulation board exterior insulation system mainly has: EPS board external wall insulation system, XPS board external wall insulation system one or two kinds of system performance comparison 1, the insulation performance: EPS and XPS insulation performance of the same thickness is gradually elevated. EPS was 0.041, XPS 0.030. Therefore, to achieve the same insulating effect under the circumstances, XPS plate thinner than the thickness of EPS board, but the pure plate prices in EPS boards XPS plate expensive. XPS system shortcomings: 1), XPS board itself xps extruded high strength steel prices, resulting in more brittle plate, easy to bend. 2) higher prices compared to the EPS system. For an insulated terms Chengdu extruded sheet, mainly to see the thermal inertia index D, D coefficient is proportional to the value of the accumulator. But on the whole system, regenerative 200mm of concrete has been big enough xps extrusion board, plus external insulation, fully meet the energy requirements. It is also integrated with national regulatory requirements of the wall thermal conductivity and heat storage coefficient of reasons to be satisfied. EPS or XPS thin plaster systems fully meet the requirements. 2. Strength: The strength should be noted here that the tensile strength, density and tensile strength of polystyrene board have absolute relationship, the average EPS density 18Kg / m3 tensile strength of 110 ~ 120KPa, 20Kg / m3 density in 140KPa around. XPS normal bulk density from 25Kg ~ 45Kg, intensity from 150KPa ~ 700KPa or higher. (Only if it meets the thermal conductivity of about 0.03). 5), XPS board in our country after 10 years of development, has been a lot of attention and promotion. And the formation of a national xps insulation system standards. 6), XPS panels on combustion levels, with fire A grade extruded plate, B1 level, B2 level; the current domestic standards: GB8624-1997 / GB8624-2006 / GB8624-2012, these criteria are based on extruded plate Oxygen content in the index do different standards.