High-Insulation Polyurethane Exterior Wall Cladding Panels are prefabricated, rigid composite panels engineered for exterior thermal insulation and architectural finishing. Consisting of a continuous closed-cell polyurethane (PUR/PIR) core bonded between a durable metal exterior skin and a protective interior backing, these panels deliver continuous insulation (ci) that eliminates thermal bridges.
Designed for mechanical face-fastening on steel and timber frame structures, the panel system integrates a tongue-and-groove joint profile to ensure air and water tightness. It serves as a direct-to-framing exterior cladding option for industrial plants, warehouses, cold storage facilities, and commercial buildings.
Technical Specifications
|
Property |
Technical Data / Value |
Testing Standard |
|
Core Material |
Rigid Polyurethane (PUR) / Polyisocyanurate (PIR) |
ISO 845 |
|
Core Density |
40 +/- 3 kg/m3 |
ISO 845 |
|
Thermal Conductivity (lambda) |
<= 0.022 W/(m*K) |
EN 12667 / ASTM C518 |
|
Standard Panel Thickness |
50 mm, 75 mm, 100 mm, 120 mm, 150 mm |
ISO 2796 |
|
Exterior Skin Material |
Hot-dipped Al-Zn coated steel sheet (AZ150) / Aluminum |
ASTM A792 / EN 10346 |
|
Skin Thickness |
0.40 mm - 0.70 mm |
EN 10143 |
|
Fire Performance |
Class B-s1, d0 (PIR core) / ASTM E84 Class A |
EN 13501-1 / ASTM E84 |
|
Water Vapor Permeability |
<= 3.0 x 10^-12 kg/(Pasm) |
EN 12086 |
|
Compressive Strength |
>= 150 kPa (Parallel to surface) |
EN 826 |
|
Standard Width |
1000 mm, 1200 mm (Effective coverage) |
- |
Key Features
Continuous Insulation (ci): Eliminates structural thermal bridging associated with traditional stud-wall cavities, maintaining stable interior temperatures and reducing HVAC energy consumption.
Closed-Cell Core Structure: Achieves a closed-cell content exceeding 95%, restricting moisture ingress, vapor transmission, and internal mold growth.
High Strength-to-Weight Ratio: Rigid foam bonding provides structural rigidity, allowing for longer spans between purlins and reducing primary steel framing loads.
Concealed Fastener System: Integrated fastener channels hide fixing screws from direct weather exposure, protecting against fastener corrosion and water leakage.
Weather-Resistant Coatings: Exterior steel skins receive multi-layer coil coating (PVDF or Polyester), providing UV resistance and color stability in harsh environments.
Applications & Reference Cases
Industrial & Manufacturing Plants: Exterior wall cladding for steel-structure manufacturing facilities requiring rapid enclosure and climate control.
Reference Case: Automotive Logistics Warehouse Envelope, Germany (45,000 m2 using 100 mm PIR panels).
Logistics Warehouses & Distribution Centers: Large-scale wall envelopes requiring high fire ratings and efficient installation timelines.
Reference Case: Regional E-Commerce Fulfillment Hub, Netherlands (62,000 m2, Class B-s1, d0 certified).
Cold Storage & Food Processing Facilities: Low-temperature environments requiring stable thermal barriers and hygienic, easy-to-clean interior/exterior surfaces.
Reference Case: Low-Temperature Distribution Cold Store, Poland (28,000 m2, stainless steel internal facing).
Commercial & Modular Buildings: Office complexes, retail centers, and prefabricated modular units requiring a modern architectural finish and strict energy code compliance.
Surface & Finish Options
Profiles:
Micro-ribbed: Subtle linear texture to minimize visual waviness over large spans.
Flat / Smooth: Clean, monolithic architectural aesthetic.
Deep-grooved / Fluted: Enhanced shadow lines for industrial facades.
Coatings & Finishes:
PVDF (Polyvinylidene Fluoride): 25–35 micron dry film thickness, offering superior chemical, chalking, and UV resistance (AAMA 2605 compliant).
PE (Polyester): Cost-effective standard finish for general industrial use.
Textured / Embossed: Wood-grain or stucco embossment to diffuse light reflection and hide minor handling marks.
Standard RAL Colors: Over 30 standard RAL colors available; custom color matching provided upon request (minimum order quantity applies).
Customization
Dimension Customization: Lengths cut-to-size from 2 meters up to 12 meters to match precise building elevations and minimize on-site cutting waste.
Core Density Adjustment: Density adjustable between 38 kg/m3 and 45 kg/m3 depending on specific structural load requirements.
Facing Material Options: Options for stainless steel interior faces for corrosive food-processing environments, or aluminum-foil backing for standard utility applications.
Cutouts & Penetrations: Factory-prepared openings for windows, doors, and utility penetrations available based on shop drawings.
Manufacturing & Quality Control
Continuous Lamination Process: Panels are produced on a fully automated continuous double-belt laminator. Raw liquid PUR/PIR components are high-pressure injected, foaming uniformly between the top and bottom metal facings under controlled temperature and pressure.
Curing Control: The continuous conveyor system ensures uniform foam curing, eliminating internal voids, delamination, and thickness variations.
Dimensional Inspection: Laser-guided thickness sensors and automatic cutting saws maintain length tolerances within +/- 2 mm and squareness within +/- 1.5 mm.
Laboratory Testing: Batch samples undergo routine testing for peel strength, compressive strength, and thermal conductivity in an in-house quality control laboratory certified to ISO 9001 standards.
Installation & Joint System
Tongue-and-Groove Interlock: Panels feature a precision-milled tongue-and-groove joint profile that guides alignment during erection and creates a labyrinth seal against air and wind-driven rain.
Fastening Method: Through-fix installation utilizing self-drilling carbon steel screws equipped with EPDM sealing washers, anchored directly to structural girts or purlins.
Joint Sealing: Application of butyl sealant tape or neutral-cure silicone within the side joints for projects requiring enhanced airtightness (e.g., controlled-environment warehouses).
Handling Precautions: Panels must be lifted using vacuum lifters or spreader beams for lengths exceeding 6 meters to prevent surface buckling during installation.
Packaging & Logistics
Stacking Protection: Panels are stacked face-to-face with protective polyethylene film interleaves to prevent scratching of the coil-coated finish.
Packaging Structure: Bundles are wrapped in heavy-duty waterproof UV-resistant woven plastic film, secured with steel strapping over expanded polystyrene (EPS) edge protectors.
Forklift & Crane Handling: Bundles are built on squared wooden skids allowing safe forklift handling from the side and overhead crane lifting via slings.
Container Loading: Standard 40ft High Cube (HC) containers and open-top flat racks are utilized for international shipping, optimized to maximize volume utilization and protect panel edges during ocean transit.
FAQ
Q: What is the maximum unsupported span for these wall panels?
A: Maximum spans depend on local wind load requirements, panel thickness, and steel gauge. Generally, for a 100 mm panel under a 0.8 kN/m2 wind load, the recommended maximum single-span distance is 3.0 meters to 3.5 meters. Consult our engineering team for project-specific span tables.
Q: Can these panels be installed vertically and horizontally?
A: Yes. Both installation orientations are fully supported. Horizontal installation requires proper sub-framing arrangement and joint flashing to ensure gravity drainage.
Q: What documentation is provided for building code compliance?
A: We provide comprehensive technical dossiers including ISO 9001 factory certificates, third-party fire test reports (ASTM E84 / EN 13501-1), thermal performance test reports, and material safety data sheets (MSDS) to assist with local permitting.
Q: What is the standard production lead time for custom orders?
A: Standard production lead time is 15 to 25 calendar days upon receipt of approved shop drawings and deposit, depending on coil color availability and total order volume.
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