Why Choose Our Fire-Rated Sandwich Panel
- The fully automatic production line ensures uniform core material density and maintains its excellent fire resistance.
- The water absorption rate of high-density rock wool <1%, and it can maintain long-term stable performance in a humid environment.
- Provide on-site installation guidance to ensure that 100% of the project nodes pass the fire protection acceptance.
- All our products have passed the test results of EN, ASTM, and BS standards.
- Supports customized thicknesses and panel materials, with in-house production and consistent delivery times.
Pupanel — Your Reliable Fire-Rated Sandwich Panel Supplier
As a professional supplier of fire-rated sandwich panels, Pupanel takes A-grade fireproof rock wool and B1-grade PIR as core materials and provides you with high-quality fire-rated sandwich panel materials through fully automatic production lines.
Our products are globally certified, and we offer on-site installation guidance, providing you with a safe and compliant full-cycle solution. Contact us immediately to obtain the fire protection test report and project quotation!
Classified by Fire-Rated Core Materials
Rock wool is an A-level non-combustible material that has strong fire resistance. It is suitable for applications in chemical plants and warehouses that require fire-resistant grades.
With polyisocyanurate as the core material, it meets the B1-grade flame-retardant standard, delivering efficient fire resistance and flame retardancy while maintaining excellent thermal insulation performance.
Features of Fire-Rated Sandwich Panels
The core material of our fire-rated sandwich panels is rated from A (e.g., rock wool) to B1 (e.g., PIR), providing strong fire resistance.
Fire-rated sandwich panels possess multiple functional characteristics such as thermal insulation, sound insulation, light weight, high strength, and corrosion resistance.
Our fire-rated sandwich panels are accompanied by fire resistance rating test reports issued by national authoritative institutions to ensure the safety, reliability and compliance.
Fire-rated sandwich panels offer excellent thermal insulation performance, helping reduce long-term energy consumption and improving construction efficiency.
Fire Prevention Guarantee
We adopt a self-developed composite structure design: the surface layer is an aluminized zinc steel plate, and the middle is filled with A-grade rock wool core material (density ≥140kg/m³). Our fire-rated sandwich panels have passed UL certification, with a fire resistance limit of up to 4 hours. Even at 1000℃, it maintains structural integrity and stability.
Intelligent Insulation Technology
Our PIR core material adopts a closed-cell foaming process, with a stable thermal conductivity ranging from 0.021 to 0.023W/(m·K). After testing, it was found that in an environment ranging from -30℃ to 80℃, the temperature difference on the board surface is maintained at ≤2℃, and energy-saving efficiency increases by 40% compared with traditional materials.
Weather-Resistant Structure
Our fire-rated sandwich panels are coated with an aluminum-zinc alloy layer and HDP coating, and have passed the salt spray test. In addition, our independently developed locking system enables seamless splicing between your boards and offers wind pressure resistance of up to 4.0kPa, as verified in practical applications.
Applications of Fire-Rated Sandwich Panel
Fire-rated sandwich panels not only meet the requirements for lightweight and high strength but also provide stringent fire protection, conforming to mandatory fire protection regulations for industrial buildings.
In cold storage, our fire-rated sandwich panels not only provide excellent thermal insulation but also feature fireproof core materials that block potential fire sources.
For high-risk environments such as chemical engineering and petroleum, our fire-rated sandwich panels resist high temperatures and corrosive gases, ensuring safety in these areas.
Our fire-rated sandwich panels are seamlessly installed and meet the requirements of clean environments. At the same time, its fire resistance performance provides a crucial safety guarantee.
The lightweight nature of fire-rated sandwich panels reduces structural loads, while their fire-resistance performance ensures overall fire compliance for modular buildings.
- Our Factory
- Project Case
China’s fire protection grades are classified under GB 8624: Grade A is for non-combustible materials (e.g., rock wool), and Grade B1 is for flame-retardant materials (e.g., PIR).
Different grades correspond to different combustion performances. You need to select appropriate materials based on the building type and applicable fire protection regulations.
Its price is primarily determined by the core material type (rock wool > PIR > conventional foam), density, panel thickness, and other factors. Low-price fire-rated sandwich panels usually use inferior core materials, which pose serious safety hazards.
When installing fire-rated sandwich panels, ensure the panels are tightly joined and firmly fixed to avoid creating weak points in fire resistance. Besides, you should regularly check whether the panel coating and joints are sealed to prevent the core material from being exposed for a long time or from seeping water.
All our qualified products comply with environmental protection standards. Rock wool fibers may slightly irritate the skin, but once completely sealed after installation, there will be no effect. PIR and other movement materials only release toxic gases when they burn, so the fire resistance rating is of vital importance.
The normal service life of our fire-rated sandwich panels is about 15 to 25 years. The main factors affecting its lifespan include the quality of the panel coating, the moisture resistance of the core material, the installation process, and environmental corrosiveness.
Although the thickness of the panel cannot change the fire resistance grade of the core material, it directly affects the fire resistance time of the overall structure. Thicker panels better protect the core material and delay penetration at high temperatures.
What is a Fire-Rated Sandwich Panel?
Fire-rated sandwich panels are a type of composite building material that is made by combining two layers of metal panels with a core material filled in the middle through high-strength adhesives. Its core feature is to enhance the overall component’s safety by leveraging the core material’s fire resistance.
Our fire-rated sandwich panels are widely used in the exterior walls and roofs of industrial and commercial buildings. The fire resistance grades vary significantly depending on the core material. When choosing building materials, you must strictly follow fire protection regulations to ensure that the core material’s combustion performance is higher than B1 grade, so as to effectively prevent the spread of fire and safeguard life and property safety.
The Core Material of Fire-Rated Sandwich Panels
Panel Material
The panel materials of fire-rated sandwich panels are usually metal panels, such as color steel plates, stainless steel plates, and aluminized zinc plates, and there are also non-metal panels, such as gypsum boards.
Core Material
- Rock Wool: Rock wool has a fire resistance rating of Class A (non-combustible), which offers the best fire resistance performance. It can also insulate heat and has excellent sound insulation.
- Polyurethane: Polyurethane is classified under fire resistance grades ranging from B1 (difficult to ignite) to B2 (flammable). It has excellent thermal insulation and heat preservation performance, and is lightweight and highly strong. However, it is best to select B1-grade high-quality polyurethane as the fireproof core material.
- Polyisocyanurate: Polyisocyanurate (PIR) is a B1 grade (difficult to ignite) core material with excellent thermal insulation performance. It has higher heat resistance, better carbonization, and self-extinguishing properties when exposed to fire than polyurethane.
The Advantages of Using Fire-Rated Sandwich Panels
Enhance Fire Safety
Using non-combustible or flame-retardant core materials, such as rock wool or PIR, can effectively prevent the spread of flames and the transmission of high temperatures, providing precious time for personnel evacuation and fire rescue in the event of an unexpected fire. This significantly enhances your building’s overall fire resistance rating and meets national mandatory fire protection standards.
Reduce Energy Consumption and Costs
The core material in the middle of the fire-rated sandwich panel also serves as an excellent thermal insulating layer. Its porous structure can significantly reduce heat transfer between your building’s interior and exterior, thereby lowering energy consumption for heating and cooling and reducing your overall operating costs.
Shorten Your Construction Period
Our fire-rated sandwich panels are lightweight overall but offer high strength and rigidity. On-site installation only requires simple splicing and fixation. The installation speed is extremely fast, which can significantly shorten your construction period and reduce labor costs.
Meet Your Multi-Functional Needs
In addition to fire resistance and heat insulation, our fire-rated sandwich panels also have excellent sound insulation, moisture-proof, anti-corrosion, and aesthetic effects. It can meet multiple functional requirements simultaneously and simplify the complex procedures associated with traditional building materials.
How to Choose Safe Fire-Rated Sandwich Panels?
Clarify the Fire Protection Grade and Regulations
Before making a purchase, you must follow the minimum fire protection grade (usually Grade A or B1) clearly stipulated in the Building Design Fire Protection Code based on the purpose, height, and type of the building.
Verify the Product
You need to carefully check whether the product name, core material type, and combustion performance grade in the report are exactly consistent with your procurement requirements and verify their compliance.
Physical Inspection
You need to view the core material sample of the fire-rated sandwich panel. For instance, the rock wool core material should be uniform in texture and free of large particle impurities.
In addition, you need to observe the edge banding and bonding of the fire-rated sandwich panel. The side edge banding of high-quality sandwich panels should be tight and neat, and the core material should be firmly bonded to the panel without any delamination.
