Recently the Ministry of Housing issued a "construction industry" second five "plan" (the "Plan" ""). "Plan" put forward the national construction industry output, "Twelve Five" period, average annual growth of value added of construction by more than 15% of foreign contracted projects average annual turnover growth of more than 20%. Actively promote the construction of industrialization, to encourage and promote new affordable housing and commercial housing menus full-decorated house. Engineering design of new construction in line with the national building energy efficiency standards to reach 100% of resource-saving society contribution the industry has improved significantly. Requirements building construction process unit product energy consumption decreased by 10% increase in value, increasing the proportion of steel works. Building energy-saving materials, especially organic materials is the future direction of the main polyurethane foam insulation materials development. China's current construction industry and building materials market in general only concerned whether the fire safety performance of building insulation materials, but they ignore the ability to achieve energy efficiency targets. Obviously, this will give a major decision the national building energy efficiency and carbon emissions have serious negative effects. Guide the development of insulation materials is the path of development of building energy efficiency and fire safety of a combination of both. Market analysts believe that if the state policy implementation in selected 40 cities, each city within the next two years to complete the transformation of the construction area 4,000,000 square meters, such as the use of polyurethane insulation materials ratio increased to 50%, corresponding only to pull the pilot project MDI consumes about 46,000 tons, insulation boards, consumes about 25,000 tons of propylene oxide, such as taking into account domestic stock of 40 billion square meters of floor space and nearly half of public floor area, the market is vast. The so-called exterior insulation, refers to the outer surface of the vertical external wall insulation construction. I believe that the function of insulation, wall insulation is limited to increasing the effectiveness and resulting requirements, and should not count on the stability of this layer of insulation structure play a role in the body wall; the main wall, the exterior insulation layer The substrate must meet the requirements of the mechanical stability of the building, can withstand a vertical load, wind load, and can withstand impact and safe to use, but also make the surface of the insulation layer and the decoration layer can be firmly fixed on its cover. Of course, the insulation board is installed, the exterior insulation system, in terms of the composition of materials, systems design, application, experimental research and other construction there are many erroneous understanding, these four basic errors directly affect the depth of the exterior insulation technology and development, insulation board classification, should be taken seriously enough. External thermal insulation system specific studies and operations, as well as a business conscience and social responsibility issues, while the government should take effective measures to properly guide the direction of development of exterior insulation, exterior insulation effectively get rid of the current market, "design look safe the owners look at the price, the total package look rebate, supervision see red, "the unspoken rules and rules of the game.