Third, the first main factor exterior insulation material selection: the low thermal conductivity? Because EIFS technology threshold is not high, Zichuan XPS board in standard setting and policy guidance materials and system components tend to separate the system itself and there is hysteresis, the domestic part of the design staff for external thermal insulation technology has not good understanding and grasp some of the practices still exist for external insulation vague concept, Huantai XPS board, often think the choice of external insulation, low thermal conductivity main material, is a good exterior insulation system, lead to the design and Construction of touch, plus misguided some enterprises, but also to a wide variety of exterior insulation technology, good and bad. From the perspective of building mechanical and thermal engineering in building exterior insulation and external decoration system, it should be regarded as a composite whole structure to study, and should not be separated into structural layer, insulating layer, crack layer, and Research finish layer separately. Thermal studies show that after installing insulation, XPS extruded board manufacturers, due to good thermal insulation properties, resulting in the insulation layer, the outer side showing a different thermal environment, therefore, composite structures, it should be based on the insulation layer boundaries to engage in various studies. Based on this understanding, we choose the external wall insulation system for basic analysis. 1, thermal insulation properties: EPS and XPS insulation performance is gradually rising. EPS was 0.045, XPS is 0.028. Because the thickness of the wall decoration in insulation and other performance indicators to meet the situation, the thinner the better. So the same insulation effect of two kinds of practices. Pure plate prices more expensive than EPS board XPS board, XPS Extrusion board, if full account of technology and building height, EPS and XPS almost the same price per square meter, because about 15 yuan. Currently EPS or XPS thin plaster systems fully meet the requirements. Yiyuan XPS board | Zibo Rui environment Building Materials Co. | XPS extruded plate by Zibo Rui environment Building Materials Co., Ltd. Zibo Rui environment Building Materials Co., Ltd. (www.lcxps.com) Shandong Zibo, insulation, insulation materials, leaders, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Zibo Rui environment Building Materials Co., Ltd. leadership with the staff warmly welcome all inquiries negotiations to create Zibo Rui environment Building Materials Co., a better future.