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Composite material refers to the radiation absorbing materials, rock wool, and even the treated crop straw, you can have insulation and sound-treated waste, and other technical means by foaming production hollow materials. Composite thermal insulation effect is better, it has many advantages inorganic insulation materials: fire retardant, the deformation coefficient is small, aging, stable performance, environmental protection, and high insulation strength, long life, small construction difficulty low cost of the project, its wide range of guardian composite decking sources of raw materials, low energy consumption, can not only save resources, but also improve the efficiency of the recycling loop. Other insulation materials such as insulation coatings, paint and other radiation, these materials have a certain insulation effect, the application also made some progress, but there are limitations on their properties and applications, higher material costs first, second, coating aging fast, limited life. Applications Applications insulation materials Building insulation is a highly specialized system Ding Cheng, from all aspects of design, construction, material selection, construction, resource and environmental protection, to the actual needs of local climate characteristics and thermal efficiency, architectural design, construction according to the main material characteristics, adversely affect the performance of thermal insulation materials and windows, roof insulation measures, the resources, the level of resource utilization, fire and security insulation, service life, insulation whether it will live and the ecological price composite vs wood planks environment and technical feasibility of the proposed selection process on many conditions to determine the insulation system. South, north of climatic conditions and indoor temperature climate complex incident, larger temperature changes, significant climatic features are: northern air is dry, cold winter, wind, little rain, the northern winter heating time in 120-150 days, the main requirement insulation effect. Choose from the thermal insulation properties, the use of expanded polystyrene board (EPS), extruded polystyrene board (XPS), spray polyurethane (SPU), more efficient composite insulating material; and southern air temperature big, foggy, rainy cold weather less, more humid weather, in addition to star-rated hotels, restaurants have central air conditioning, the general building no heating. When winter outdoor sunny outdoor temperature rather than the indoor high. In this case, if the use of polystyrene board thin plaster exterior insulation and finish systems. Not only does not feel warm indoor temperature. But it will feel more cold. Therefore, building insulation southern region should be based on the primary purpose of the hot air barrier, thermal insulation material should inorganic composite material or efficient insulation material is more appropriate.