Container House Sandwich Materials
Common sandwich materials for container houses include rock wool, expanded polystyrene (EPS), polyurethane (PU), glass wool, phenolic foam, polyisocyanurate (PIR), and foam metals, among others. Here is a detailed introduction:
Rock Wool Sandwich Panels: Using rock wool as the core material, these panels offer excellent fire resistance, withstanding temperatures up to 1000°C, and are classified as Class A fire-retardant materials. They also provide good thermal insulation and sound absorption properties, commonly used in steel structure enclosure scenarios, such as fire-resistant color steel plate houses specifically for construction sites.
Expanded Polystyrene (EPS) Sandwich Panels: Widely used in the market, these panels achieve Class A fire resistance by adding fire-retardant materials to the foam core. They are lightweight and efficient but have weaker fire resistance compared to rock wool, often used for partition walls in ordinary movable board houses or interior partitions.
Polyurethane (PU) Sandwich Panels: With rigid polyurethane foam as the core material, these panels have a low thermal conductivity coefficient, providing outstanding thermal insulation performance while maintaining high structural strength. Some products enhance fire resistance through polyurethane edge-sealing processes, suitable for scenarios with high thermal insulation requirements, such as cold storage or temporary residences.
Glass Wool Sandwich Panels: Similar to rock wool, glass wool also offers Class A fire resistance and significant sound absorption effects, but its thermal insulation performance is slightly weaker than that of polyurethane. They are commonly used in industrial temporary structures or movable board houses requiring noise reduction.
Phenolic Foam and Polyisocyanurate (PIR) Sandwich Panels: Phenolic foam sandwich panels are heat-resistant and produce low smoke and toxins, suitable for scenarios with stringent fire safety and environmental protection requirements; PIR sandwich panels combine the thermal insulation performance of polyurethane with the fire resistance of phenolic foam but have higher costs and relatively limited market applications.
Foam Metal Sandwich Panels: Using metal foam as the core material, these panels combine lightweight properties with high strength but have higher costs, mostly used in special industrial scenarios, such as aerospace or high-end temporary structures.
Selection Recommendations: If both fire resistance and thermal insulation are required, rock wool or polyurethane sandwich panels are preferred; if the budget is limited and fire resistance requirements are general, EPS sandwich panels can meet basic needs; in humid environments, the moisture resistance of glass wool offers advantages.
