External wall insulation materials are a vital part of modern buildings, which can improve the energy efficiency and suitability of buildings. With the increasing attention paid to energy conservation and environmental protection, the selection of external wall insulation materials has become more and more important.

External wall insulation materials are mainly divided into two categories: organic insulation materials and inorganic insulation materials. Organic insulation materials mainly include polystyrene boards, polyurethane spray materials, extruded polystyrene boards, etc. These materials have the advantages of low thermal conductivity, good waterproof performance, and corrosion resistance, and are suitable for external wall insulation of various buildings. Inorganic insulation materials mainly include rock wool, glass wool, etc. These materials have the characteristics of high temperature resistance, non-combustibility, non-toxicity and harmlessness, and are suitable for external wall insulation in high temperature environments.

When selecting external wall insulation materials, in addition to considering the insulation performance of the materials, it is also necessary to consider their construction convenience, durability and environmental protection. On the one hand, choosing materials with simple construction can reduce the construction period and improve construction efficiency; on the other hand, choosing materials with long service life and environmental friendliness can reduce the frequency of maintenance and replacement and reduce the impact on the environment.

At the same time, the type and thickness of external wall insulation materials also need to be determined according to the needs and geographical conditions of the specific building. In cold climates, it is necessary to select materials with lower thermal conductivity and better thermal insulation performance, and increase the thickness of the materials to improve the thermal insulation performance of the building; in hot climates, materials with higher thermal conductivity and better thermal insulation performance can be selected, and the thickness of the materials can be reduced to achieve better thermal insulation effects.

In general, exterior wall insulation materials are of great significance as an important part of building energy conservation. Reasonable selection and use of exterior wall insulation materials can improve the energy efficiency of buildings, reduce energy consumption, and achieve sustainable development. Of course, when selecting exterior wall insulation materials, it is also necessary to fully consider the actual needs and geographical environment of the building to select the appropriate materials, and ask relevant personnel to provide technical support to ensure construction quality and effect.