Product Overview
The PU Cold Storage Roof Panel is an insulated roofing system designed for cold storage warehouses, refrigerated logistics facilities, and temperature-controlled industrial buildings.
It consists of a rigid polyurethane (PU) foam core bonded between steel facings, providing thermal insulation, structural strength, and airtight performance for cold chain applications.
Technical Specifications
|
Item |
Specification |
|
Core Material |
PU / PIR (optional) |
|
Density |
40–45 kg/m³ |
|
Thickness |
50–200 mm |
|
Width |
1000–1120 mm |
|
Steel Thickness |
0.3–0.8 mm |
|
Surface |
PPGI / PPGL / Stainless Steel / Aluminum |
|
Thermal Conductivity |
0.018–0.022 W/m·K |
|
Fire Rating |
B1 / B2 / PIR option |
|
Temperature Range |
-40°C to +80°C |
|
Water Absorption |
≤1.5% |
|
Max Length |
Up to 16 m |
Key Technical Advantages
Maximum Thermal Efficiency
Ultra-low thermal conductivity (0.018–0.024 W/m·K) provides unmatched heat resistance.
20%–40% Energy Savings
Dramatically lowers the power consumption of commercial refrigeration systems.
Advanced Vapor Barrier
A closed-cell structure (≥ 90%) blocks moisture penetration and eliminates condensation risk.
High Load-Bearing Capacity
Engineered steel facings withstand heavy wind, snow loads, and support long-span roof designs.
20–30 Years Extended Lifespan
Built for long-term durability in highly humid and corrosive environments.
Rapid Modular Assembly
Lightweight, precision-engineered panels significantly reduce on-site construction time and labor costs.
Global Project Applications
Deep-Freeze Storage
Frozen meat, poultry, and seafood logistics centers (-25°C to -40°C).
High-Standard Processing
Food and seafood processing clean rooms.
Medical Cold Chain
Pharmaceutical and vaccine temperature-controlled rooms (2°C to 8°C).
Logistics Hubs
Mega e-commerce cold chain hubs, airport or port cold storage facilities.
Premium Material Structure
Metal Steel Facings
Material Options: Pre-painted Galvanized Steel (PPGI), Galvalume (Aluzinc), or Stainless Steel (Grade 304/316 for hygienic environments).
Thickness Range: 0.40 mm – 0.75 mm (Industrial Grade).
Protective Coatings: Polyester (PE), Silicone Modified Polyester (SMP), or Polyvinylidene Fluoride (PVDF) for ultimate UV and corrosion protection.
High-Density Insulation Core
Material: Rigid Polyurethane (PU) / Polyisocyanurate (PIR) foam.
Density: 40–45 kg/m³ (The industry sweet spot for optimal strength and insulation).
Cell Structure: ≥ 90% Closed-cell rate.
Heavy-Duty Joint Systems
Standard: Tight interlocking Tongue & Groove joint system.
Roofing System: Hidden fastener roofing system for 100% waterproof sealing.
Optional: Integrated Cam-lock system for modular cold rooms requiring easy relocation.
Professional Installation Options
Hidden Fastener System
A premium waterproof design where screws are concealed, eliminating any potential water leakage paths.
Overlap Joint System
Engineered for high wind resistance zones, securing the roof against severe tropical storms or coastal winds.
Cam-Lock Interlocking System
Best for modular, fast-assembly walk-in freezers and smaller cold rooms.
System Comparison
|
Item |
Wanxiang System |
Standard Panel |
|
Thermal Stability |
Consistent performance |
Variable |
|
Airtightness |
System-level sealing |
Basic joints |
|
Energy Efficiency |
Optimized design |
Material-based |
|
Structural Design |
Engineering support |
Single component |
|
Project Suitability |
EPC projects |
Basic buildings |
Global Project Footprint
Saudi Arabia
12,000 square meters Mega Cold Storage Warehouse for commercial food distribution.
01
UAE
Frozen Logistics Center featuring high-density PIR fire-retardant panels.
02
Vietnam
Large-scale Seafood Processing Facility with anti-corrosive stainless steel facings.
03
Philippines
Industrial Cold Chain Hub engineered for high-velocity typhoon zones.
04
Germany
Automated Pharmaceutical Distribution Cold Room with strict temperature stability.
05
Stringent Quality Control
Every panel leaving the Wanxiang facility undergoes precise testing on our advanced production line:
Continuous PU Foaming Line: Guarantees uniform foam density and eliminates internal air pockets.
Physical Properties Testing: Strict verification of core density, peeling strength, and thermal conductivity.
Safety Inspections: On-site water absorption testing and ASTM/EN standard fire resistance tests.
Global Compliance: Manufactured in compliance with international standards (CE, ISO9001, FM standards - please adjust based on your actual certificates).
Pre-Shipment Inspection: Full structural and aesthetic inspection prior to container sealing.
Customization Options
Thickness: 50–200 mm
Steel material: Galvanized / stainless / aluminum
Surface coating: Anti-corrosion / ral colors
Fire performance: PU / pir options
Edge system: Hidden or exposed fastening
Custom lengths for container optimization
Heavy-Duty Packaging & Global Delivery
Seaworthy Export Packaging
Bundled with protective plastic film to prevent surface scratches.
Heavy-Duty Edge Protection
Reinforced corners to withstand multi-modal sea and land transport.
Container Loading Optimization
Maximized space utilization to minimize ocean freight costs per square meter.
Turnaround Time
Swift factory production and dispatch within 15–25 days from order confirmation.
Why Global Buyers Choose Wanxiang
Direct Factory Supplier: Eliminates Middleman markups; offers competitive factory-direct wholesale pricing.
Massive Production Capacity: Stable, continuous output ensuring on-time delivery for large-scale infrastructure.
Extensive Overseas Experience: Deep understanding of international shipping regulations, port clearances, and quality standards.
24-Hour Technical Response: Direct communication with expert engineers, offering rapid quotes within 24 hours.
OEM / ODM Customization: Fully tailored panel widths, lengths, thicknesses, and coatings to fit your unique project specifications.
Certificates
FAQ
Q: Can PU roof panels be used for large-span cold storage buildings?
A: Yes, PU roof panels are suitable for large-span structures due to their lightweight nature and high structural rigidity, reducing the need for heavy steel support systems.
Q: What type of steel surface is recommended for cold storage applications?
A: PPGI (pre-painted galvanized steel) is commonly used for general cold storage, while stainless steel is recommended for high-humidity or corrosion-prone environments such as seafood processing facilities.
Q: Do PU panels help reduce refrigeration system size or operating cost?
A: Yes. By improving thermal insulation and airtightness, PU panels reduce heat gain, which can lower refrigeration load and potentially reduce compressor operating costs.
Q: Can the panels be installed in existing cold storage facilities during renovation?
A: Yes. PU roof panels can be used for both new construction and retrofit projects, provided the structural framework is compatible.
Q: How is joint sealing handled to ensure airtight performance?
A: Panels use tongue-and-groove interlocking joints combined with PU foam or silicone sealing to minimize air leakage and thermal bridging.
Q: Are PU cold storage roof panels suitable for pharmaceutical-grade cold rooms?
A: Yes. They are widely used in pharmaceutical storage environments (2°C–8°C) where temperature stability and hygiene are required.
Q: What is the minimum order quantity (MOQ) for export projects?
A: MOQ depends on specification, but standard export orders typically start from one 20GP container. Mixed loading with wall panels is also available.
Q: Can Wanxiang provide installation guidance or technical support overseas?
A: Yes. We provide installation manuals, CAD drawings, and technical consultation. For large EPC projects, remote engineering support is available.
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