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China Sandwich Roof Panel Suppliers - PIR/PUR Foam Core Factory for Superior Insulation and Structural Integrity
Products Description
Our PIR or PUR Sandwich Roof Panel with the features of high thermal insulation value, lightweight, moisture resistant, durability, energy efficiency, versatility and easy installation, sandwich roof panel become a popular solution. PIR or PUR Sandwich roof panels are used in a wide variety of applications including industrial buildings, commercial buildings, agricultural structures as well as cold storage facilities.
Product Details
Our PIR/PUR roof panels adopt a three-wave crest design with a crest height of 36mm, which greatly improves the roof drainage effect and load-bearing capacity. It can effectively reduce construction costs while ensuring the thermal insulation effect of the building. The roof slope can be low as 3%. With exposed nail design, the nail fixing space is adjustable from 250mm to 1000mm.
| TECHNICAL PARAMETERS OF ROOF SANDWICH PANEL | |||||||||
| THICKNESS | Effective Width | Length | Core | Density | Fire Resistance | Weight | Heat Transfer Coefficient Ud,s | Surface Thickness | Surface Material |
| mm | mm | m | / | Kg/m³ | / | Kg/㎡ | W/[m x K] | mm | / |
| 100 | 1000 | 1–18 | PIR PUR |
43±2 40±2 |
B1 B2 |
12.5 11.8 |
≤0.022 ≤0.024 |
0.3–0.8 | Customized |
The Joint
The exposed nail design with split joint of our sandwich roof panels are widely used in industrial, commercial, and agricultural buildings, including warehouses, cold storage facilities and manufacturing plants.
Their ease of installation and low maintenance requirements make them a cost-effective option for modern construction projects, helping to increase sustainability and efficiency.
Surface Material
Our PIR/PUR Sandwich Roof Panel have multiple customizable surface steel material and color choices such as PPGI, Stainless steel, embossed aluminum etc. Their durability, moisture resistance and chemical resistance further enhance their appeal.
PPGI
PPGI, or Preprinted Galvanized Iron, is a versatile metal material widely used in construction and manufacturing. It features a galvanized steel base that is coated with a layer of paint for excellent corrosion resistance and durability. Key features include its lightweight nature and its availability in a variety of colors and finishes for aesthetic customization. PPGI is also very environmentally friendly as its production process produces less waste. PPGI has a long service life and minimal maintenance requirements, making it ideal for roofing, wall cladding and other applications.
Typical Color (PPGI)
More Colors
PPGI has a variety of color finishes, we provide customized color service, please contact us for whatever color you need.
Other Surface Material
To obtain better or specific function, other surface materials can also be customized, such as Stainless Steel (SUS304 / SUS201), Aluminum, or other alloy (Zinc, Magnesium, Titanium, etc.).
Ti-Mg-Zn-Al Alloy
Embossed Aluminum
Stainless Steel (SUS304)
Extra Coating
PPGI can also be enhanced with various advanced coatings to improve its performance and durability.
Typical coatings include:
- 1. PVDF (Polyvinylidene Fluoride): Known for its exceptional resistance to UV radiation, chemicals, and weathering, PVDF provides a glossy finish that retains color vibrancy over time. This makes it ideal for outdoor applications, particularly in architectural projects.
- 2. HDP (High-Durability Polyester): HDP coatings offer superior durability and scratch resistance, making them suitable for high-traffic areas and industrial environments. They protect against corrosion and environmental factors, extending the lifespan of the material.
- 3. EP (Epoxy Polyester): This coating combines the benefits of epoxy and polyester, providing excellent adhesion and resistance to chemicals and moisture. EP coatings are ideal for indoor applications and environments where chemical exposure is a concern.
These advanced coatings significantly enhance the functionality and longevity of surface, making it a preferred choice for various applications in construction and manufacturing.
More About PIR/PUR Sandwich Roof Panel
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High Thermal Insulation Value
PUR foam has one of the lowest thermal conductivity among thermal insulation materials, usually about 0.022–0.025 W/m·K. This high insulation value minimizes heat transfer and ensures the building's energy efficiency.
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Lightweight
Although PUR panels have strong insulating properties, they are lightweight, which simplifies handling and installation. This feature reduces the overall structural load on the building, making it suitable for a variety of applications.
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Moisture Resistant
The closed-cell structure of polyurethane foam prevents moisture absorption, which is critical to maintaining the integrity of your roof and preventing problems like mold and mildew.
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Durability
PUR boards are resistant to a variety of environmental factors, including chemicals, UV radiation, and physical impact. This durability ensures a long service life, reducing the need for frequent maintenance or replacement.
PUR (Polyurethane) / PIR (Polyisocyanurate) sandwich roofing panels are an excellent choice for modern construction due to their high heat resistance, lightness, moisture resistance and durability. Its unique construction enables efficient temperature control, making it essential in a variety of applications from industrial and commercial buildings to agricultural buildings and cold storage facilities. As industries continue to prioritize energy efficiency and sustainability, demand for PUR panels is likely to grow, cementing its role as the cornerstone of contemporary roofing solutions. By investing in PUR sandwich roof panels, businesses can ensure the integrity of their buildings while optimizing operating costs and minimizing environmental impact.
Frequently Asked Questions
QWhat is the difference between PIR and PUR sandwich roof panels?
PIR (Polyisocyanurate) and PUR (Polyurethane) are both high-performance foam core materials. PIR has a slightly higher density (43±2 kg/m³) and better fire resistance rating (B1), while PUR has a density of 40±2 kg/m³ with a B2 fire rating. PIR generally offers better thermal performance and fire resistance, making it preferred for stricter building code requirements, while PUR is a cost-effective alternative for standard applications.
QWhat is the minimum roof slope for PIR/PUR sandwich roof panels?
Our PIR/PUR sandwich roof panels can be installed on roofs with a minimum slope of 3%. The three-wave crest design with a crest height of 36mm significantly improves drainage performance, making them suitable for low-pitch roof applications while maintaining effective water runoff.
QWhat surface material options are available for the sandwich roof panels?
We offer a wide range of customizable surface materials including PPGI (Prepainted Galvanized Iron) in various colors and finishes, Stainless Steel (SUS304/SUS201), Embossed Aluminum, and specialty alloys such as Ti-Mg-Zn-Al Alloy. Additional coating options such as PVDF, HDP, and EP are also available to enhance durability and performance.
QWhat are the standard dimensions and customization options for the roof panels?
Our standard roof panels come with a thickness of 100mm, an effective width of 1000mm, and lengths ranging from 1 to 18 meters. Surface steel thickness can be customized between 0.3mm and 0.8mm. The nail fixing space is also adjustable from 250mm to 1000mm to suit different structural requirements. Custom dimensions and surface materials are available upon request.
QWhat applications are PIR/PUR sandwich roof panels suitable for?
PIR/PUR sandwich roof panels are suitable for a wide range of applications including industrial buildings, commercial facilities, agricultural structures, warehouses, manufacturing plants, and cold storage facilities. Their excellent thermal insulation, lightweight nature, and moisture resistance make them an ideal solution for any project requiring energy efficiency and structural performance.
QHow do PVDF, HDP, and EP coatings differ, and which should I choose?
PVDF (Polyvinylidene Fluoride) is best for outdoor and architectural projects due to its superior UV resistance and long-lasting color retention. HDP (High-Durability Polyester) is ideal for high-traffic or industrial environments requiring scratch and corrosion resistance. EP (Epoxy Polyester) is recommended for indoor or chemical-exposed environments due to its excellent adhesion and chemical resistance. The right choice depends on your specific environment and performance requirements.