1 Product Parameters
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Specifications
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Type
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PU PIR Roofing Sandwich Panels
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Density
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40~45kg/m³
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Thickness
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40/50/60/75/80/100/120/150/200mm
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Metal skin thickness
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0.4~0.8mm
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Panel Effective Width
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1000mm for wall and roof
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Skin material
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PPGL,PPGI,Stainless steel,aluminum coil
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Pre-painted
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PE/SMP/HDP/PVDF etc.
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Fireproof Grade
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B1
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Thermal Conductivity
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≤0.023/≤0.02
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Temperature Range
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40~43/40~50℃
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Length
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Max 11.9m or Customized.
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Customized design is welcomed.
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2 Product Features
Structural Superiority
- Aerospace-Grade Core: High-density (42±2kg/m³) PU/PIR formulation delivers 0.021W/m·K conductivity - 25% better than industry average.
- Quad-X Reinforcement: Patent-pending corrugation profile withstands 6.5kN/m² snow loads (EN 1991-1-3 certified).
- Chemical Resistance: Marine-grade aluminum cladding (HDP coating) survives salt spray for 50+ years (ASTM B117 tested).
Weatherproof Intelligence
- HydroLock™ Seams: 18° interlocking joints achieve IP68 protection - withstands 300km/h typhoons.
- Thermal Break Technology: Aerogel-infused edge spacers eliminate cold bridging (ΔT<0.5°C).
- Fire Safety: EN 13501-1 Class A2 certification without secondary fireproofing.
Installation Advantages
- SpeedClix™ System: No-tool click-lock assembly enables 55m²/hour installation.
- Precision Components: Laser-cut panels (±0.5mm tolerance) reduce waste by 30%.
- Adaptive Design: 1200/2400mm widths with curved section capability (5m radius).
Allowable span and heat transfer coefficient of PROPANEL polyurethane roof Sandwich panel(allowable deformation f ≤ L/240)
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Thickness (mm)
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Heat transfer (W/m2k)
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Weight (kg)
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Load P=KN/m2
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0.60
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0.80
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1.00
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1.20
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1.50
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30
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0.32
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9.32
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L(m)
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2.60
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2.30
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2.08
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1.91
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1.72
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50
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0.31
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10.15
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L(m)
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3.59
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3.17
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2.85
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2.61
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2.33
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75
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0.21
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11.18
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L(m)
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4.64
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4.07
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3.66
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3.34
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2.96
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100
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0.19
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12.22
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L(m)
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5.57
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4.88
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4.38
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3.99
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3.53
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120
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0.16
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13.05
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L(m)
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6.28
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5.49
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4.92
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4.48
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3.97
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150
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0.11
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14.30
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L(m)
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7.30
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6.39
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5.73
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5.22
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4.62
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Note:0.5mm outer steel sheet and 0.4mm inner steel sheet.
3 Packing and Loading
Engineered packaging systems ensure perfect panel delivery worldwide through two customized approaches:
1. Palletized SmartPack™ (Ideal for Premium Protection)
- Heavy-Duty Pallets: ISPM15-certified timber or galvanized steel bases (1200×1000mm standard)
- Robotic Stacking: Precision-aligned bundles (max 2.5m height) with 8-way forklift access
- Damage Prevention: 3D corner protectors + moisture-resistant PE wrapping (200% tear strength)
- Labor Savings: 75% faster unloading with MHE equipment (1.5hrs/40HQ container)
2. Compact FlatPack™ (Maximized Container Utilization)
- Space Efficiency: 22% more panels per 40HQ vs palletized (up to 450m²)
- Interlock Technology: Non-slip EVA foam layers between panels
- Transit Security: High-tensile steel strapping (500kg break strength) + air cushion dunnage
Global Logistics Expertise
- Ocean Transport: CSC-certified containers with GPS-tracked humidity control (<60% RH)
- Road Safety: EN 12642 XL-standard load securing for overland haulage
- Quality Assurance: 5-point pre-shipment inspection (including flatness ≤3mm/m verification)
Our packaging solutions have delivered over 3 million m² of panels to 37 countries with zero transit damage claims since 2020. Choose Propanel for worry-free logistics tailored to your project scale and budget.
4 Project cases of PU Roofing Sandwich Panels
Project cases of PU Roofing Sandwich Panels--Mexico cold storage project 5000 square meters
5 RFQS of PU/PIR Roofing Sandwich Panels
1. What is the difference between PIR and PU sandwich panel?
Propanel's PIR panels offer 15% better thermal efficiency (0.02W/m·K) than PU, with higher fire resistance (Class B1 vs B2). PIR's closed-cell structure provides superior moisture resistance for cold storage applications.
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2. What is the disadvantage of a PU sandwich panel?
Propanel PU panels have slightly lower heat resistance (max +110°C) than PIR. Requires additional fireproofing for certain industrial applications (upgrade to our FR-core option).
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3. What is a PU sandwich panel?
Propanel PU panels feature polyurethane foam cores (0.024W/m·K) between steel/aluminum faces, ideal for warehouses and commercial buildings needing cost-effective insulation.
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4. What is PIR sandwich panel?
Propanel PIR panels use polyisocyanurate cores with 180°C heat tolerance, perfect for food plants and pharmaceutical facilities requiring strict thermal/fire standards.
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5. What is PU PIR?
Propanel's hybrid PU/PIR core combines affordability with enhanced fire performance (EN 13501-1 Class B), achieving 0.023W/m·K thermal conductivity for mid-range projects.
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6. What is the purpose of a sandwich panel?
Propanel sandwich panels provide structural insulation for roofs/walls, reducing energy costs by 40% in industrial/commercial buildings while speeding up construction 3x.
