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• by admin
• 2025-07-08

50mm thick red eps roof panels manufacturer

The roof must withstand wind, rain and sun, as well as temperature and energy consumption, and must match the overall style of the building. Traditional roof materials are either heavy and energy-consuming (such as concrete boards) or monotonous and boring (such as ordinary color steel plates), which are difficult to meet the comprehensive needs of modern buildings for efficiency, beauty and sustainability.

The emergence of 50mm red EPS roof panels have redefined the value of the roof. With a 50mm thin body, it combines super insulation, light load-bearing, colorful beauty, and durability, becoming a common roof material for industrial plants, logistics warehousing, commercial complexes, agricultural greenhouses and other scenes. As a manufacturer of Yirong sandwich panel manufacturer with 15 years of deep cultivation in the sandwich panel industry, we use technology as the backbone and quality as the wings to make each EPS sandwich panel a breathing building guardian.

1. Introduction of 50mm red EPS roof panels

1.1 Core material

The structure of 50mm thick red EPS roof panel adopts "sandwich" composite technology, with 50mm thick high-density polystyrene foam board (density ≥30kg/m³) in the middle, 0.4mm thick color-coated steel plate wrapped on both sides, and Q235B cold-rolled steel plate on the surface treated with polyester PVDF coating. This design not only retains the lightweight insulation characteristics of EPS, but also solves the problem of easy breakage and weather resistance of traditional EPS panel through the steel plate layer, achieving a breakthrough of being as light as foam and as stable as a rock.

1.2 50mm thickness

The common thickness of EPS roof panel on the market is 30-150mm, and 50mm is the best thickness obtained by Yirong R&D team through thermal calculation and cost optimization.

Thermal insulation performance​​: EPS thermal conductivity is only 0.038W/(m·K) (about 1/100 of concrete), and 50mm thickness can reduce the roof heat transfer coefficient (K value) to below 0.35W/(㎡·K), meeting the energy-saving requirements for hot summer and cold winter areas in the "Civil Building Thermal Design Code", increasing the room temperature by 3-5℃ in winter and reducing air conditioning energy consumption by 25% in summer.

​​Cost control​​: Compared with 100mm thick EPS sandwich panel, 50mm thickness reduces the material consumption by 30%, reducing the initial construction cost. At the same time, the lightweight design reduces the load of the roof steel truss (weight reduction of about 8kg per ㎡), saving about 10% of the basic structure cost.

1.3 ​​Red aesthetics

Traditional roofs are mostly industrial colors such as gray and blue, which are incompatible with the colorful design of modern buildings. Yirong's 50mm red EPS roof panel adopts fluorocarbon PVDF color coating technology. The red color number has not faded after 2000 hours of salt spray test (in line with GB/T 12754-2019 standard). It is matched with the matte texture on the surface of the steel plate, which not only retains the industrial texture, but also adds warmth and vitality to the building. Whether it is the sense of technology in the modern logistics park or the pastoral style of the cultural and tourism project, it can be easily matched.

2. Why choose 50mm red EPS roof panels?

2.1 Super insulation

The low thermal conductivity of the 50mm EPS layer makes the roof a natural insulation layer. Taking a 30,000㎡ logistics warehouse in the Dominican Republic as an example, after using EPS roof panels, the winter heating energy consumption is reduced by 32%, the summer cooling energy consumption is reduced by 28%, and the annual electricity bill is saved by more than 20,000 US dollars.

2.2 Light weight

The weight of a single board is only about 12kg/㎡ (including the steel plate layer), which is 1/20 of the concrete board and 1/3 of the traditional sandwich board. With Yirong's quick-install buckle design, a single person can complete the installation of a single board, and the daily installation efficiency reaches 500 square meters, greatly shortening the construction period. In a Southeast Asian food factory expansion project, 50mm red EPS roof panels were used, and the 1000 square meter roof was installed in only 3 days, which was put into production 10 days ahead of schedule.

2.3 Weathering and corrosion resistance

The PVDF coating on the steel plate surface is resistant to UV aging (no obvious discoloration in the 5000-hour aging test), and the EPS layer is double-treated with an interface agent and a waterproof membrane, with a water absorption rate of <0.5% (much lower than the industry standard of 1%). Even in harsh environments such as acid rain, salt spray, and high humidity, the structure can still remain stable for 20 years. After 8 years of use, a warehouse in a chemical park in Africa was tested and found that there was no cracking or leakage in the roof, and the EPS layer thickness only lost 1mm.

2.4 Flexible adaptation

Industrial scenarios: factories, warehouses, cold storage-adapted to heavy equipment loads (allowed uniform load ≥1.5kN/㎡).

​​Commercial scenarios​​: shopping malls, exhibition halls, hotels - by customizing the red color (such as Chinese red, wine red, brick red), it forms a visual unity with the building facade.

​​Agricultural scenarios​​: greenhouses, plantations - the thermal insulation of the EPS layer can increase the temperature in the greenhouse by 3-8℃, which helps off-season planting.

​​Special scenarios​​: temporary shelters for emergency rescue, scenic viewing platforms - lightweight design + fast installation to meet temporary/mobile needs.

3. Advantages of Yirong sandwich panel manufacturer

As one of the top ten brands in China's sandwich panel industry, Yirong always believes that good products come from the ultimate control of details. From raw materials to finished products, we have built a full-chain quality control system of R&D, production, testing, and service, making every EPS sandwich panel a quality commitment.

Yirong sandwich panel production base is equipped with German TRUMPF laser cutting machines, Swiss Jinma fully automatic spraying lines, and Italian Prima Power bending machines to achieve full automation of steel plate flattening, color coating, compounding, and cutting. The 50mm EPS core material adopts a continuous foaming process, and the thickness error is ≤0.5mm. The composite accuracy of steel plate and EPS reaches ±0.3mm, ensuring the flatness and sealing of each board.

Before each batch of EPS roof panels leaves the factory, it must undergo 108 tests in three categories: physical properties, weather resistance, and safety performance.

Physical properties: density, thermal conductivity, compressive strength (≥150kPa).

Weather resistance: salt spray test (no corrosion for 1000 hours), ultraviolet aging (no yellowing for 5000 hours).

Safety performance: combustion performance (B1 grade), wind resistance (no shedding in a 12-level typhoon).

Yirong's services

Customized services: support red color customization (provide Pantone color card selection), size cutting (minimum cutting unit 300mm), special-shaped board processing (such as arc, trapezoid).

​​Installation guidance​​: Free BIM installation drawings, on-site technical training, and "one-to-one" engineer remote guidance;

​​After-sales guarantee​​: Provide 10-year warranty (industry average 5 years), respond to maintenance needs 24 hours a day, and arrive at the site in remote areas within 48 hours.

4. Conclusion

Yirong 50mm thick red EPS roof panels, with a thin and light body of 50mm, carries the multiple missions of insulation, beauty, and durability, allowing every building to be lightly equipped and warm.

Whether you are a builder of industrial plants, a designer of commercial complexes, or a developer of cultural and tourism projects, Yirong sandwich panel manufacturer can customize a breathing red roof for you. Because we believe that good buildings start from the "top".

​​Contact Yirong now to get free samples and professional solution quotes, let the 50mm red EPS roof panels inject new vitality into your building!