The perfect combination of EPS sandwich panels and metal buildings

In the field of metal building, EPS sandwich panel (Expanded Polystyrene Sandwich Panel) has become one of the core building materials for industrial plants, warehousing and logistics, commercial buildings and other scenarios due to its lightweight, heat insulation and fast construction. As a professional sandwich panel manufacturer, Canglong Group provides customers with high-performance EPS sandwich panels and customized metal building solutions through technological innovation and global service experience, helping projects reduce costs and increase efficiency.

Characteristics and core advantages of EPS sandwich panels

EPS sandwich panels are made of two layers of metal panels (aluminum-zinc-plated sheet, color steel plate, etc.) compounded with an intermediate EPS foam core, whose comprehensive performance far exceeds that of traditional single-layer panels or other sandwich panels (e.g., rockwool panels, glasswool panels, PU sandwich panels), with the following specific advantages:

Lightweight and high-strength load-bearing

EPS core material density is low (12-30kg/m³), the overall weight of the plate is only 1/20 of the concrete roof, but can withstand high strength load (compressive strength ≥ 120kPa), significantly reducing the load of the main structure of the metal building, saving steel.

Excellent thermal insulation performance

The closed cell structure of EPS can effectively block heat conduction, and the thermal conductivity is as low as 0.033-0.038W/(m-K), which is better than rock wool (0.040-0.045W/(m-K)), and is especially suitable for factories or cold-chain warehouses with stringent temperature control requirements.

Fast installation and low cost

Modular design supports dry construction, can be directly fixed on metal building purlin by self-tapping screws, installation efficiency is increased by more than 50%, and there is no need for additional insulation layer, reducing the comprehensive cost by 30%.

Moisture and corrosion resistance, long service life

EPS core material does not absorb water, metal panels are plated or coated to adapt to high humidity, acidic and alkaline environment, the service life can be more than 20 years.

Compare with other panels:

• Rock wool/glass wool sandwich panel: higher fire rating (Class A), but high density, high cost, and easy to absorb moisture;
• PU sandwich panel: better thermal insulation performance, but expensive, environmental protection is limited;
• Single-layer metal plate: need to add additional insulation layer, construction is complex and high energy consumption.

When to choose EPS sandwich panel? Applicable scene analysis

EPS sandwich panels are not a “one-size-fits-all” solution, but their characteristics make them particularly effective in the following scenarios:

Buildings with moderate fire protection requirements

EPS sandwich panel is usually class B1 (flame retardant) and are suitable for common industrial buildings, logistics warehouses, agricultural sheds and other non-intensive places.

Projects requiring fast delivery

Prefabricated production and on-site assembly mode can significantly shorten the construction period, which is suitable for projects with urgent production or seasonal demand fluctuations.

Projects with limited budget and focus on long-term energy saving

Low initial investment, combined with excellent thermal insulation, results in long term savings on air conditioning and heating costs and a high return on investment.

Environment with high humidity or large temperature difference

For example, food processing workshops, cold chain logistics centers, and buildings in coastal areas, its moisture and condensation resistance can prevent structural corrosion.

Canglong Group: the world’s leading sandwich panel manufacturer

As a core material supplier in the field of metal construction, Canglong Group builds a high-performance EPS sandwich panel product chain oriented by technology research and customer demand, and its core competitiveness is reflected in:

1. Product performance advantages

• Customized core density: Adjust the EPS core density (16-30kg/m³) according to customers’ needs, balancing strength and cost.
• Diversified panel selection: provide panel types such as color steel plate, aluminum-zinc-plated plate, stainless steel plate, etc., with optional thickness of 0.4-0.8mm to adapt to different weathering requirements.
• Special functional coatings: anti-corrosion coating (PVDF), anti-static coating or anti-bacterial coating are available to meet the needs of special scenarios such as electronic factories and pharmaceutical workshops.

2. Technical adaptability

Climate adaptable design:

• Windy areas: Strengthen the board edge bite structure to improve the wind exposure resistance (passed EN 1015 standard test).
• Snowy area: optimize the span of plate and purlin spacing to ensure no deformation under snow load.
• Highly corrosive environments: adopting aluminum magnesium zinc plated panels to extend service life.

All-in-one solution:

Provide metal building design program, 3D model drawing and node detail drawing matching with EPS sandwich panels to ensure accurate matching between panels and steel structure.

3. Full-process service guarantee

• Globalization certification: the products have passed ISO 9001, CE, ASTM and other certifications, and comply with the building codes of Europe, America, Southeast Asia, the Middle East and other places.
• Rapid response mechanism: adjust the production process according to the climatic parameters (such as wind load, snow load, seismic intensity) of the project site, and complete the customized production in 7-15 days.
• Technical support network: stationed engineers to guide the installation, provide lifelong maintenance consulting, reduce customer operation and maintenance costs.

Canglong EPS sandwich panel application cases

Southeast Asian e-commerce logistics park: using 0.6mm aluminum-zinc plated panels + 20kg/m³ EPS core to resist high temperature and high humidity climate and save 40% of air-conditioning energy consumption.

North America Auto Parts Warehouse: with Canglong light steel frame, wind-resistant grade up to 150mph, 20,000 square meters of roofing completed in 3 weeks.

Middle East temporary exhibition center: removable EPS sandwich panel wall, reuse rate over 90%, in line with environmental protection and cost control needs.

Conclusion

EPS sandwich panels have become an irreplaceable “golden choice” in the field of metal construction due to its light weight, heat preservation and economy. Canglong Group, as a leading sandwich panel manufacturer, continues to provide customers with cost-effective and adaptable solutions through technological innovation and a globalized service network. Whether it is extreme climate challenges or complex functional requirements, Canglong EPS sandwich panels will empower metal buildings with excellent performance and reliable quality.