• EPS Sandwich Panel

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  • What is EPS Sandwich Panel?

    EPS (Expanded Polystyrene) Sandwich Panel is a lightweight, cost-effective building material composed of two outer layers of durable steel sheets and a core of EPS foam. The EPS core provides excellent thermal insulation, while the steel surfaces offer structural strength and protection. This combination makes EPS sandwich panels ideal for use in prefab house wall systems, offering quick installation and efficient performance.

  • Properties of EPS Sandwich Panels

    Thermal Insulation

    The EPS core significantly reduces heat transfer, helping maintain indoor temperature and improve energy efficiency in prefab buildings.

    Lightweight & Easy Installation

    EPS panels are light in weight, reducing structural load and allowing for quick, easy installation on-site, saving time and labor.

    Cost-Effective

    Compared to other insulated panels, EPS sandwich panels offer an economical solution without sacrificing essential performance.

    Moisture Resistance

    EPS foam is resistant to moisture absorption, reducing the risk of mold and maintaining panel integrity over time.

    Good Acoustic Performance

    While not as sound-absorbing as mineral wool, EPS panels still provide a reasonable level of noise reduction in residential and light commercial settings.

    Fire Performance

    Standard EPS is combustible, but panels can be upgraded with fire-retardant additives or protective facings to improve fire behavior depending on project needs.

  • Common Specifications

    EPS Sandwich panels are often customized to meet specific needs, but some common specifications include:

    Thickness

    Common core thicknesses include 50 mm, 75 mm, and 100 mm, with custom thicknesses available on request.

    Panel Width

    Standard effective width is 950 mm or 1150 mm, depending on design.

    Panel Length

    Custom lengths are available, typically ranging from 1.8 m to 12 m, depending on transportation and installation requirements.

    Steel Sheet

    Pre-painted galvanized steel (PPGI) or aluminum-zinc coated steel is used for outer layers, typically 0.4 mm – 0.6 mm thick.

    Core Density

    Standard EPS core density is around 12 – 20 kg/m³.

    Surface Finish

    Flat or corrugated surface options, available in various colors and coatings for aesthetic and durability preferences

  • Applications

    EPS Sandwich Panels are commonly used in:

    • Exterior and Interior Walls
      Providing thermal insulation and structural support in residential, commercial, and industrial prefab buildings.
    • Partition Walls
      Lightweight and easy to install, ideal for internal dividing walls in modular units or office cabins.
    • Cold Storage & Temporary Buildings
      EPS panels are often used in low-cost cold rooms and temporary housing due to their insulation and affordability.
    • Roof Panels (with proper slope)
      In certain designs, EPS sandwich panels can also be used for roofing with appropriate slope and sealing.

  • Conclusion

    EPS Sandwich Panels offer a practical, lightweight, and economical solution for prefab house wall systems. With good thermal insulation, ease of installation, and customization options, they are a popular choice in a wide range of modular and prefabricated construction projects.

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