Why choose Pupanel PIR sandwich panel?
- Integrated continuous manufacturing system
- FM, CE, SIRMI, SGS & fire test certified panels
- Stable export experience to the EU, the US, and SEA
- Custom thickness, length, coating & fire ratings
- Compliant with B1 fire rating and AS1530 standards
Your Reliable PIR Sandwich Panel Manufacturer in China
The PIR sandwich panel is made of BASF closed-cell PIR foam core material, which has an extremely low thermal conductivity and lower thermal bridges. It provides detailed insulation and energy-saving effects. PIR material is non-absorbent, lightweight, and highly strong, so it is convenient for transportation and quick installation. At the same time, it has outstanding fire resistance and can operate stably for a long time.
Pupanel, as a professional PIR sandwich supplier, strictly follows international certification standards, providing you with a enough supply and personalized customized solutions. If you have any needs, please feel free to contact us at any time.
PIR Sandwich Panel Types We Supply
The high-density PIR core material combined with a steel plate coating offers outstanding heat insulation and sound insulation effects. The hidden screw joint design reduces thermal bridges, and it makes the construction process convenient. It can be utilized for exterior walls, interior walls, partitions, and ceilings.
The hidden screw and over lap joint is tight, preventing the intrusion of air and dampness. The lightweight material is easy to handle and install quickly. It provides long-term stable insulation protection for workshops, warehouses, and industrial roofs.
A combination of double-layer color-coated steel plates and high-density PIR core material accomplishes high insulation and airtightness. Customized organic coatings can be provided to satisfy the hygiene and energy-saving requirements of cooling, freezing, and constant-temperature buildings.
Pre-fabricated corner design, allowing for fixation without additional corner flashing. It combines fire resistance, insulation, and aesthetics, suitable for facade edge finishing, improving construction efficiency, and the entire appearance of the construction.
Features of PIR Sandwich Panel
Reduces heat loss and lowers long-term energy costs.
Improves fire safety and keeps structural stability under high temperatures.
Save limited indoor space and accomplish the desired insulation effect.
Provides better load-bearing performance than EPS-based panels.
Ensures uniform insulation and consistent panel quality.
Prevents water uptake and lowers condensation risks.
Helps reduce HVAC demand in industrial and commercial buildings.
Dense PIR core resists damage in warehouses and food-related facilities.
Superior Fire Safety
The PIR sandwich panel is made of polyisocyanurate foam core material, which has greatly better fire resistance than ordinary PUR or EPS materials. As a thermosetting material, PIR does not melt at high temperatures, effectively preventing the contagion of fire and helping the structure keep integrity during a fire. With B1/B2 fire resistance levels and multiple international standard certifications, it enables you to be more at ease in cold storage, industrial buildings, or public building projects.
High Thermal Efficiency
The PIR foam has a highly uniform closed-cell structure, with a thermal conductivity as low as approximately 0.023W/(m·K). Under the same insulation effect, the required thickness is significantly less than that of materials like EPS. So you can reduce the thickness of walls or roofs without sacrificing the insulation effects, and gain more usable building space. In the long run, it also generates cost savings in operation.
Lightweight & Strong
The PIR sandwich panel is composed of a metal panel and a high-strength foam core material. It is lightweight yet highly rigid and possesses excellent compressive, wind-resistant, and impact-resistant capabilities. The hidden screw joint design enables a quicker installation process, shortening the on-site construction period. Meanwhile, by taking advantage of its windproof, rainproof, and corrosion-resistant properties. You can keep stable performance and appearance throughout long-term use.
Applications of PIR Sandwich Panel
PIR sandwich panels are always applied in the roofs and exteriors of industrial factories, warehousing and logistics centers, production workshops, etc., providing efficient insulation, reliable structural support, and lowering power consumption while improving fire safety.
In refrigerated storage facilities, walk-in cold storage, and refrigerated warehouses, sandwich panels have an extremely low thermal conductivity. They can keep a low-temperature environment and reduce temperature fluctuations and energy consumption. So they are an outstanding insulation solution in the food, pharmaceutical, and cold chain logistics industries.
For food processing factories, clean rooms, laboratories, and cold and heat control spaces with high requirements for temperature, hygiene, and structural safety, PIR sandwich panels can provide excellent insulation, moisture-proofing, and fire-resistant properties, guaranteeing the consistency and safety compliance of environmental conditions during the production process.
PIR sandwich panels are well-suited for use in prefabricated houses, modular building systems, emergency buildings, and fire-risk areas with high fire hazards; their lightweight, high-strength, and rapid installation features enable more efficient and safe construction of buildings.
- Our Factory
- Project Case
The thermal conductivity of PIR sandwich panels is extremely low. Compared to PUR and EPS panels, it has better fire resistance, higher structural strength, and long-term durability. This helps you lower power consumption, improve building safety, and optimize usable space with thinner insulation layers.
Yes. The fire resistance performance of PIR panel is superior to that of PUR and EPS panels, and its thermal conductivity is lower. At the same thickness, PIR has higher insulation efficiency. In the event of a fire, its structural stability performance lasts longer, so it is the preferred material in industrial and commercial projects.
PIR sandwich panels are always applied in industrial buildings, warehouses, logistics centers, refrigeration rooms, food processing factories, clean rooms, and modular buildings. They are well-suited for those applications that require strict temperature control, have fire safety performance, and are convenient for installation.
Yes. PIR sandwich panels are well-suited for refrigeration rooms or refrigerated warehouses. Their closed-cell structure effectively lowers heat transfer, cuts the risk of condensation, and helps keep a stable low-temperature environment, while also reducing long-term energy consumption costs.
The thickness, length, width, surface material, coating, and seam design of PIR sandwich panels can all be customized according to your needs. As a manufacturer, we can match the insulation, fire resistance level, and installation requirements of your project to adjust the specifications of the panels.
What is A PIR Sandwich Panel?
PIR sandwich panels are high-performance insulation boards, composed of two metal panels (steel plates or aluminum plates) sandwiched between a hard PIR foam core material. PIR foam is a thermosetting polymer produced by the reaction of isocyanates and polyols, featuring low thermal conductivity, light weight, high strength, and excellent impact resistance.
PIR sandwich panels are manufactured through a continuous foaming process, creating a highly cross-linked closed-cell structure within the core material. It guarantees uniform insulation layers, minimizes thermal bridges, and improves building energy efficiency. The panels can be additionally coated with aluminum foil or coated metals to enhance moisture resistance and fire retardancy, meeting the safety and environmental requirements of various construction projects.
Advantages of PIR Sandwich Panel
Excellent Thermal Insulation Performance
The thermal conductivity of PIR coreboard is extremely low, so it can accomplish heat insulation. The uniform core material and precise dovetail joint effectively prevent thermal bridges, allowing your building to keep warmth in winter, cool down in summer, and significantly lower heating and cooling costs.
High Fire Safety
The core material of PIR is a thermosetting polymer. PIR has superior fire resistance. In the event of a fire, the PIRsandwich board can effectively prevent the spread of the fire, ensuring the integrity of the building structure and the safety of personnel. If your engineering project has high requirements for fire safety, such as industrial, commercial, and cold storage facilities, you can choose PIR.
Strength and Lightweight
Two layers of steel or aluminum plates are wrapped around the hard PIR foam, giving the sandwich panel both high hardness and light characteristics. You can design the building structure more flexibly, while reducing the load on the supporting framework, and it is convenient for you to transport and install, and save construction costs.
Waterproof and Durable
The closed-cell foam structure of the PIR sandwich panel hardly absorbs water, and it can maintain outstanding insulation and mechanical properties even in a humid environment. Its corrosion resistance, weather resistance, and UV resistance guarantee the long-term stability, safety, and reliability of the building.
Save Space
A PIR sandwich panel has low thermal conductivity, so that it can be thinner than materials with the same insulation effect. You can save building thickness while maintaining insulation effect, maximize indoor usable space, and improve space utilization.
Easy to Install And Process
The PIR sandwich panel adopts a self-locking interlocking design, is lightweight and easy to handle and install on-site. You can quickly complete roof or wall construction, and can also cut or customize the size as the project needs, flexibly adapting to a variety of architectural schemes.
Sustainable and Eco-friendly
APIR sandwich panel is a prefabricated product, and the production process is environmentally controlled. The board can be recycled: the metal surface can be melted and regenerated, the PIR core material can be mechanically or chemically recycled or used for power generation, offering solutions for your building project.
Diverse Options
PIR sandwich panel offers various thicknesses, widths, lengths, and surface material options, including galvanized steel plate, aluminum plate, and special coatings. You can choose the appropriate solution according to diverse requirements, such as roofs, walls, cold storage, or modular buildings.
PIR vs PUR Sandwich Panel
Core Material Composition and Heat Endurance
The chemical basis of PIR and PUR is quite similar. Both are formed through the chemical reaction of isocyanates and polyols. Polyols are further classified into polyether polyols and polyester polyols. The reaction between polyether polyols and isocyanates yields polyurethane (PUR), while the reaction between polyester polyols and isocyanates produces polyisocyanurate (PIR). Therefore, it has a higher aromatic content, which makes PIR more structurally stable under high-temperature conditions.
Fire Performance and Structural Stability
The chemical chain stability temperature of PIR foam is approximately 300°C, while that of PUR foam is about 200°C. This makes PIR more resistant to high temperatures under fire conditions. After being heated, the surface of PIR forms a dense carbonized protective layer, which delays the spread of flames and protects the internal structure. In engineering, PUR core panels usually only reach the EI15 fire rating, while PIR core panels can accomplish the EI30 rating, which is well-suited for building applications with higher fire protection requirements.
Smoke Generation and Flame-Retardant Behavior
PIR sheets usually do not require additional flame retardants. The amount of smoke produced when they burn is significantly lower than that of PUR sheets. Some PIR products can also adopt halogen-free flame-retardant systems. It makes PIR well-suited fordensely inhabited districts or construction projects with high requirements for smoke control.
Thermal Insulation Efficiency
Both PIR and PUR belong to high-performance insulation core materials. Polyurethane (PUR) foam: Thermal conductivity typically ranges from 0.022 to 0.024W/mK at 25°C.Polyisocyanurate (PIR) foam: Thermal conductivity can reach 0.019 W/mK at 25°C.However, in comparison, PIR can keep stable insulation efficiency within a wider operating temperature range. The thermal conductivity of its foam core material can be as low as 0.019 W/(m·K), so when achieving the same insulation standard, the thickness of PIR sandwich panels required is smaller, which optimizes the building space.
Mechanical Strength and Long-Term Durability
About mechanical properties, both PIR and PUR sandwich panels have high compressive strength and impact resistance. They can withstand common mechanical damage and avoid the growth of moisture, mold, and bacteria. While both perform reliably during transport, installation, and long-term use, PIR demonstrates greater durability under high-temperature and fire-related conditions.
How to Choose Between Them
If your project has strict cost requirements and presents minimal fire risk, PUR sandwich panels are still a proven and economical solution. However, if you are more concerned about fire resistance levels, thermal stability, and long-term safety, or always apply for roofs, industrial factories, or high-standard buildings, PIR sandwich panels will better satisfy your needs.
