Share some information about the types of exterior wall insulation materials. As people's requirements for building energy efficiency continue to increase, the status of exterior wall insulation materials in construction projects has become increasingly prominent. There are many types of exterior wall insulation materials, each with its own characteristics and applicable scenarios.

1. Polystyrene foam board (EPS): This is the most common type of exterior wall insulation material, which is widely used for its excellent insulation performance and low cost. EPS board has a closed-cell structure, low thermal conductivity and good water resistance.

2. Extruded polystyrene foam board (XPS): Compared with EPS, XPS has higher compressive strength and lower thermal conductivity, so its insulation effect is better. XPS board also has excellent moisture resistance and durability.

3. Polyurethane (PU): PU is a liquid insulation material that is applied by on-site spraying or pouring. It has good adhesion and sealing properties, can adapt to complex exterior wall shapes, and form a continuous insulation layer.

4. Rock wool: Rock wool is an inorganic insulation material made from melted natural rocks. It has high fire resistance and good thermal insulation performance, and is suitable for buildings with high fire protection requirements.

5. Silicate insulation material: This is a new type of inorganic thermal insulation material with aluminum silicate fiber as the main component. It has excellent thermal insulation and anti-aging properties, and is environmentally friendly and non-toxic.

To select suitable exterior wall insulation materials, it is necessary to comprehensively consider the building's use environment, thermal insulation requirements, cost budget, construction conditions and other factors.