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External wall insulation materials refer to materials used to insulate walls, in order to save energy and improve the insulation performance of buildings. In the construction industry, external wall insulation is considered a very important project, requiring consideration of various factors such as security, economy, durability, and construction difficulty when using insulation materials.

In terms of external wall insulation materials, polystyrene foam board, rock wool board, vitrified beads, etc. are common. Among them, polystyrene foam board is widely used because of its lightweight, good thermal insulation performance, affordable and other characteristics. Rock wool board and vitrified microbeads have higher insulation and compressive properties, but correspondingly, their prices are also higher.

When choosing external wall insulation materials, it is necessary to consider comprehensively based on the actual situation of the building. Firstly, the location and thickness of insulation should be considered, and the appropriate thickness should be calculated based on factors such as temperature and humidity. Secondly, it is necessary to consider the fire resistance and durability of insulation materials, and choose insulation materials that meet the standards as much as possible. At the same time, the construction difficulty of materials and their impact on the Earth's environment should also be considered.

After selecting external wall insulation materials, various issues need to be paid attention to during the construction process, such as the installation method of insulation materials, edge sealing treatment, waterproof measures, and so on. The construction quality of insulation materials directly affects the insulation effect, service life, and security of buildings. Therefore, relevant building engineering standards should be followed to ensure that the construction quality is qualified.

When using external wall insulation materials, attention should be paid to the maintenance and upkeep of the materials, timely detection and handling of various problems, and timely replacement of insulation materials that need to be replaced. Only in this way can the role of external wall insulation be fully utilized, contributing to the energy conservation and environmental protection of buildings.