Why Choose Our Roof Sandwich Panel
- All our products have obtained CE/FM certification and can meet the standards of international engineering projects.
- Our in-house production line and reliable raw material system ensure consistent performance across each batch of roof sandwich panels.
- Provide wind pressure calculation and structural solutions, and issue wind resistance technical reports that comply with the project’s landmarks.
- A strict quality inspection process ensures the strength, waterproofing, and insulation performance of the roof sandwich panels.
- Supports customization of thickness, plate type, metal surface material, and length to match different roof structures and project requirements.
Pupanel — Your Reliable Roof Sandwich Panel Supplier
As a professional supplier of roof sandwich panels, Pupanel, with years of industry experience, not only offers A- or B1-level fire-resistant, energy-efficient sandwich panels that meet global standards, but also customizes wind-resistant solutions and provides technical support for each of your projects to ensure the safety and durability of your buildings.
Our Products
Rock wool core materials have excellent fire resistance and good sound insulation, making them suitable for industrial plants, public buildings, and special-function buildings with high fire protection grade requirements.
With a polyurethane core, it features excellent thermal insulation and heat retention performance, as well as a relatively low self-weight, making it suitable for building roofing systems with high energy-saving requirements and a focus on economy and construction efficiency.
With PIR core material as the core, this type of sandwich panel not only maintains excellent thermal insulation performance but also has superior fire resistance compared to ordinary polyurethane. It is suitable for roofing projects with stringent requirements for both energy conservation and fire resistance.
Features of Roof Sandwich Panels
Our high-performance core materials form a continuous insulation layer that effectively reduces heat loss from the roof and lowers your building’s energy consumption.
The panel type and lap system, specifically designed for roofs, can effectively prevent rainwater leakage and enhance the roof’s overall air tightness.
The metal panel and sandwich structure are combined, providing excellent load-bearing capacity and suitability for large-span and high-wind-pressure areas.
Our roof sandwich panels are lighter, reducing load on the building’s main structure and optimizing the overall design.
Stable Thermal Insulation Performance
Our roof sandwich panels feature a high-density core that forms a continuous, stable insulation layer, effectively reducing heat transfer through the roof. This helps your building minimize energy consumption and meet your long-term energy-saving goals.
Roof Waterproofing Design
Our roof sandwich panels feature specially designed panel shapes and lap structures for roofing systems, ensuring smooth rainwater drainage and effective leak prevention. It still maintains long-term stable waterproof performance in rainy, high-humidity, or harsh weather conditions.
Excellent Wind Resistance
Through the composite design of metal panels and sandwich structures, our roof sandwich panels deliver excellent load-bearing capacity and wind resistance, making them suitable for large-span roofs and areas with high wind loads, thereby enhancing the safety and reliability of the overall roof system.
Applications of Roof Sandwich Panel
Our roof sandwich panels deliver stable insulation and waterproofing performance for industrial plants while meeting wind-resistance and durability requirements.
In warehouses and logistics centers, roof sandwich panels help maintain a stable indoor environment, reduce energy consumption, and shorten construction timelines through their quick installation.
Cold storage buildings have extremely high requirements for temperature insulation and air tightness. Our roof sandwich panels can effectively reduce cold loss, lower operational energy consumption, and ensure long-term stable operation.
Roof sandwich panels balance appearance, performance, and cost. They are used in commercial buildings and agricultural facilities and fully meet basic protection and energy-saving requirements.
- Our Factory
- Project Case
Under normal usage conditions, the lifespan of our roof sandwich panels can reach about 20 years. Their durability mainly depends on the long-term stability of the coating on the metal panel and the core material.
Rock wool (the preferred choice for A-level fire protection), polyurethane (the best insulation), and polyisocyanurate are the three mainstream core materials. You need to make a comprehensive decision based on the fire protection grade, insulation requirements, and your project’s budget.
Rock wool core material has the best sound insulation performance in the medium and low frequency bands, while polyurethane and PIR have better sound insulation performance in the high frequency bands. The actual differences need to be analyzed specifically in combination with the characteristics of sound conduction.
Compared with single-layer metal roofs, sandwich panels integrate insulation and structural layers, significantly enhancing insulation performance, reducing energy consumption, and minimizing rainwater leakage. Their overall performance is more stable.
The board’s thickness directly affects its thermal insulation performance and structural strength. You should make a reasonable choice, taking into account climatic conditions and energy-saving standards, to avoid underperformance or unnecessary cost increases.
You can customize the thickness, plate type, metal surface material, and length to meet your project requirements and adapt to different roof structures and design requirements.
What is a Roof Sandwich Panel?
The roof sandwich panel is firmly combined by two layers of metal panels on the top and bottom, and a high-molecular-weight insulation core material (such as polyurethane or rock wool) is filled in the middle using adhesives.
It integrates load-bearing, insulation, waterproofing, and decoration functions. The roof sandwich panel offers lightweight, high-strength, quick installation, energy conservation, and good appearance, and is widely used in roofing systems for industrial plants, warehouses, and other buildings.
The Structure and Materials of Roof Sandwich Panels
Outer Panel
- Materials: The most commonly used panel material is aluminized zinc color steel plate, which has excellent corrosion resistance.
- Coating: The panel surface is typically coated with polyester, PVDF, or similar materials, providing color options and weather protection.
Internal Core Material
- Rock Wool: Rock wool is an A-level non-combustible material with excellent fire resistance. It offers excellent heat retention and sound insulation, making it the top choice for factories and public spaces with strict fire protection requirements.
- Polyurethane: Polyurethane has the best thermal insulation performance. It is lightweight yet strong and waterproof and moisture-proof. It is the core material with the best overall performance and the widest market application.
- Polyisocyanurate: PIR core material is an upgraded version of polyurethane. While retaining the superior thermal insulation performance and lightweight, high-strength characteristics of polyurethane, it significantly enhances fire resistance through modification technology, achieving a balance among efficiency, energy conservation, and safety.
- Polystyrene: EPS has excellent thermal insulation and is lightweight, while also offering significant economic benefits. However, it has relatively low strength and poor fire resistance and is primarily used in temporary buildings and situations where fire protection requirements are not stringent.
What are the Advantages of Using Roof Sandwich Panels?
Provide Stable Thermal Insulation Performance
The roof is the part of a building where heat loss is most severe. Our roof sandwich panels provide a continuous insulation layer using high-performance core materials such as PU/PIR/rock wool, which can significantly reduce energy consumption, help your building project meet energy-saving standards, and lower long-term operating costs.
Enhance Waterproof and Airtight Performance
Compared with traditional single-layer metal roofs, roof sandwich panels use dedicated panel types and lap structures that effectively prevent rainwater leakage and air infiltration, making them particularly suitable for areas with heavy rain, typhoons, or high humidity.
Ensure Wind Resistance Safety
Roof sandwich panels have excellent load-bearing capacity and wind resistance, which makes them suitable for large-span roof designs and capable of meeting the safety requirements of your industrial plants and warehouses.
Meet Compliance Requirements
For your project requirements, our roof sandwich panels offer fire-resistance ratings that meet local standards, helping your building pass fire protection and building approvals smoothly and reducing compliance risks.
Reduce the Comprehensive Cost
Roof sandwich panels are prefabricated products. They can be installed on site quickly, significantly reducing your construction procedures and labor input, shortening the project delivery cycle, and lowering your overall project costs.
Extend the Service Life
Our high-quality roof sandwich panels deliver exceptional corrosion resistance, anti-aging, and structural stability, helping maintain consistent performance over the long term and reducing the risk of future maintenance and rework.
How to Choose the Right Roof Sandwich Panel?
Based on Building Use
Core materials vary significantly in insulation, fire resistance, and cost. You should select the appropriate core material based on the building’s intended use. For example, for projects with stringent insulation requirements, PU or PIR should be prioritized. For projects with higher fire protection requirements, rock wool core materials can be selected.
Evaluate Sheet Thickness
You should select sandwich panel thickness and thermal conductivity values based on local climate conditions and applicable energy-efficiency standards to ensure long-term energy savings and avoid over-engineering.
Pay Attention to Wind Resistance Performance
You should confirm the load-bearing capacity, span capacity, and wind resistance performance of the panels, which is particularly important in typhoon areas or large-span industrial buildings.
Ensure Compliance
Before making a selection, you should clearly define the required fire resistance grade for your project and confirm that our roof sandwich panels comply with local fire protection and building regulations to avoid compliance risks during later approvals or use.
Prioritize Waterproof Design
The panel types of different roof sandwich panels perform differently in terms of drainage, leakage prevention, and air tightness. You should choose a sandwich panel structure specifically designed for roofing to ensure waterproofing reliability over the long term.
Consider the Overall Cost
A suitable roof sandwich panel design can significantly enhance your installation efficiency, reduce construction time,e and labor costs. When evaluating material prices, you should consider their impact on the project schedule and the overall long-term cost.
