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External wall insulation materials are a key component of building external wall insulation systems, mainly used to reduce building energy consumption and improve indoor comfort. The commonly used exterior wall insulation materials in the current market are mainly divided into the following categories:

Polystyrene (EPS): EPS is a lightweight, porous foam plastic with good thermal insulation performance. EPS external wall insulation materials are commonly used in building wall and roof insulation projects, with the advantages of easy construction and low cost.

Polyurethane (PU): Polyurethane is an organic polymer material with extremely low thermal conductivity, and its insulation performance is superior to EPS. Polyurethane exterior wall insulation materials are usually applied to the exterior wall of buildings in the form of spraying, plate, etc., with high durability and anti-aging performance.

Rock wool: Rock wool is a natural mineral fiber material with excellent fire resistance, insulation, and sound absorption properties. Rock wool exterior wall insulation materials are often used in the form of boards, felt, etc. for building exterior walls, especially for buildings with high fire protection requirements.

Glass fiber mesh cloth: Glass fiber mesh cloth is a mesh material woven from glass fibers, which has good tensile strength and insulation performance. It is usually used together with bonding materials such as polymer mortar to form an external wall insulation system.

Expanded perlite: Expanded perlite is a natural mineral material that, after high-temperature expansion treatment, has the characteristics of being lightweight and porous. Expanded perlite is often mixed with other insulation materials to improve the overall performance of exterior wall insulation systems.

These external wall insulation materials each have their own advantages and disadvantages, and in practical applications, they need to be selected according to the specific needs and budget of the building.