Images of Insulation Boards for Prefabricated Houses

Although we cannot directly provide images of insulation boards for prefabricated houses, we can offer detailed descriptions of their appearance features and types to help you identify and choose them.

Insulation boards for prefabricated houses are commonly used energy-saving materials in modern construction. Their core function is to reduce heat transfer through efficient thermal insulation layers, thereby improving building energy efficiency. Depending on the material and manufacturing process, insulation boards can be classified into the following three categories, each with distinct appearances and characteristics:

1. Polystyrene (EPS/XPS) Insulation Boards

• Appearance: Typically, they are white or light gray flat panels with smooth, flat surfaces and neat edges. EPS (Expanded Polystyrene) has a softer texture and lower density, while XPS (Extruded Polystyrene) features a closed-cell honeycomb structure due to its different foaming process, resulting in a harder texture and higher density.
• Characteristics: EPS insulation boards have a thermal conductivity of approximately 0.038-0.042 W/(m·K), while XPS boards have an even lower thermal conductivity of 0.028-0.034 W/(m·K), offering excellent thermal insulation performance. XPS boards also have stronger compressive strength (up to over 300 kPa) due to their closed-cell structure, making them suitable for load-bearing areas such as floors or roofs.
• Applications: Widely used in external wall insulation systems, cold storage insulation layers, and floor insulation layers.

2. Polyurethane (PU) Insulation Boards

• Appearance: Commonly seen as yellow or gray rigid panels, possibly with an aluminum foil or fiberglass cloth reinforcement layer on the surface. The edges of the panels may appear slightly rough due to the foaming process, but the overall flatness is high.
• Characteristics: They have a thermal conductivity as low as 0.022-0.024 W/(m·K), providing better thermal insulation performance than polystyrene boards. Additionally, they offer excellent waterproofing (water absorption rate < 1%) and adhesion, allowing direct bonding to the wall substrate and reducing thermal bridges.
• Applications: Suitable for low-temperature environments (such as cold storage and refrigerated vehicles) or building components with extremely high waterproofing requirements.

3. Rock Wool/Glass Wool Insulation Boards

• Appearance: Rock wool boards are light yellow or grayish-white with a distinct fibrous structure and a loose yet strong texture. Glass wool boards are mostly white or light yellow with finer fibers, resembling compressed cotton batting in appearance.
• Characteristics: Rock wool has a thermal conductivity of approximately 0.036-0.044 W/(m·K), while glass wool has a slightly higher thermal conductivity of 0.032-0.040 W/(m·K). However, both are classified as Class A non-combustible materials, offering excellent fire resistance. Furthermore, rock wool has stronger heat resistance (with a maximum operating temperature of up to 600°C), while glass wool is lighter (with a density of approximately 10-30 kg/m³).
• Applications: Primarily used in buildings with strict fire safety requirements (such as high-rise residential buildings and commercial complexes) or for thermal insulation of high-temperature industrial equipment.

Purchase Recommendations: To visually understand the appearance of insulation boards, you can search for keywords such as "EPS insulation board," "XPS extruded board," "polyurethane insulation board," and "rock wool board" and compare the images with the above characteristics. When making an actual selection, it is essential to comprehensively evaluate the material properties based on the building component, climatic conditions, and fire safety requirements.