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External wall insulation materials are building materials that can provide excellent thermal conductivity and insulation performance. It can reduce the heat dissipation of buildings in cold seasons and improve the indoor temperature retention capacity, thereby reducing the energy consumption and cost of heating.

External wall insulation materials are generally divided into two categories: organic and inorganic. External wall insulation materials are mainly represented by polystyrene boards, extruded boards and polyurethane foam. These materials have good thermal insulation properties and are favored because of their lightness and easy construction. However, insulation materials are more flammable and fire prevention measures need to be taken to ensure the safety of the building.

Inorganic external wall insulation materials mainly include rock wool boards, glass wool boards and silicate insulation boards. These materials are widely used in large high-rise buildings and public buildings because of their good fire resistance, strong corrosion resistance and frost resistance, and are environmentally friendly.

Whether using organic or inorganic insulation materials, the key to the external wall insulation system is the construction quality of the materials. The correct construction methods and techniques can ensure the stability and durability of the insulation materials, thereby ensuring the long-term insulation effect of the building.

The selection of exterior wall insulation materials also needs to take into account the regional climate characteristics and the structural conditions of the building. In the northern region, due to the high degree of cold air invasion on buildings, insulation materials are usually not cold-resistant enough. Therefore, inorganic insulation materials are more suitable for the insulation needs of buildings in the northern region.

In general, exterior wall insulation materials are an important means to improve the energy efficiency of buildings. It can not only save energy and reduce emissions, but also improve living comfort. Choosing suitable exterior wall insulation materials and correctly constructing them will provide long-term insulation effects for buildings.