| China has a large population, per capita resources are relatively scarce, in order to reverse this situation, the Ministry of Construction has drawn up a series of regulatory document since the mid-1980s.During the 1970s, Germany, France, Britain and other countries have set a mandatory building energy efficiency standards, energy-saving standards required much higher than China.Widespread use of external wall insulation and efficient composite materials technology. Currently, there is still a big gap in energy-saving buildings between China and advanced countries.This paper mainly focus on energy conservation of the exterior wall. Contrast to Exterior Insulation abroad ,domestic and Zhengzhou, probe for the external wall insulation systems that adapt the construction market in Zhengzhou City.From 2006,Zhengzhou City promote compulsory Exterior Insulation external saving mode. However, external wall insulation system is a new topic, for design, construction, supervision and government supervision departments, a series of facilities is not introduced, it is still a confusing market in energy conservation of the exterior wall. With the growth time, more problems arose.By analysising the problems and the reasons in external wall insulation systems , raise proposal and recommendations suitable Zhengzhou City for Exterior Insulation regulatory programs and proposals.This paper first access to the relevant literature, and then analysis commonly used form of external wall insulation in China and abroad. By Contrasting the powder particles EPS insulation slurry wall insulation system, EPS (PS) plate thin plaster external wall insulation system, EPS board cast-in-place concrete wall insulation system, cast-in-place concrete panels XPS insulation systems, mechanical fixed EPS steel mesh frame Exterior Insulation System from Zhengzhou City in the construction market share ratio, and economic characteristics for a comparison, the most comprehensive analysis for the construction market in Zhengzhou of external wall insulation system. Secondly, from the building form, this paper discusses the problems in raw materials, construction technology, thermal insulation system of fire prevention, detection and other energy-saving effect in Zhengzhou City wall insulation system, and raise the solution to the problem of above issues . |