Polyurethane Metal Wall Siding Panels
We use high-density rigid polyurethane with a closed-cell rate of up to 95% as the core material. For the same insulation effect, the required thickness is only 55% of rock wool board and 60% of EPS board. Over a 25-year lifespan, the insulation performance degradation rate is less than 5%, effectively reducing building energy consumption by 15%-25%.
polyurethane metal wall siding panels – Designed for Factory Space Creation
High-Quality Sealing Core Material
We use high-density rigid polyurethane with a closed-cell rate of up to 95% as the core material. For the same insulation effect, the required thickness is only 55% of rock wool board and 60% of EPS board. Over a 25-year lifespan, the insulation performance degradation rate is less than 5%, effectively reducing building energy consumption by 15%-25%.
High-Strength Structural Load-Bearing Capacity
The metal surface layer and core material are integrally foamed, giving it bending resistance and wind pressure resistance. We also support customized surface layer thicknesses from 0.4mm to 1.0mm, with a maximum spacing of over 1.5 meters. For high-rise commercial buildings, it can withstand extreme wind and snow loads, and the panel surface will not deform over long-term use.
Antibacterial and Mildew-Resistant
The metal surface layer itself is an inorganic material and does not contain the organic nutrients required for mold growth. We add Ag⁺ antibacterial agents or zinc ion antibacterial agents to the conventional polyester paint coating. Significantly antibacterial properties and resistant to frequent wiping with disinfectants such as hydrogen peroxide and alcohol.
Weather resistance, corrosion resistance, and dimensional stability
The surface of the panels features a high-performance PVDF paint coating, and the polyurethane core material exhibits no shrinkage or expansion during temperature cycling from -20℃ to +80℃, with a water absorption rate of ≤3%, effectively eliminating the significant performance degradation caused by moisture absorption in traditional insulation materials.
Efficient installation
The panels utilize a tongue-and-groove joint structure, allowing for precise depth fixing with pneumatic screwdrivers, resulting in installation speeds far exceeding traditional brick-and-mortar or rock wool on-site composite processes. Online installation technical briefings and construction guidance can be provided in advance to avoid common installation errors such as excessive self-tapping screw insertion or insufficient allowance for thermal expansion and contraction.
Preliminary Determined Application Scenarios for polyurethane metal wall siding panels
|
Application Scenarios |
Recommended Panel Thickness |
Recommended Core Material Thickness |
Key Considerations |
|
Temporary Buildings/Prefabricated Houses |
0.4-0.5mm |
50mm |
Cost priority, lightweight |
|
General Industrial Plant Exterior Walls |
0.5-0.6mm |
50-75mm |
Balancing strength and heat insulation |
|
Cold Chain Storage/High Humidity Environments |
0.6-0.7mm |
100-150mm |
Thermal insulation performance is the priority |
|
Cleanrooms/Pharmaceutical & Food Processing |
0.5-0.6mm |
50-75mm |
Surface smoothness and air tightness |
|
High-Rise Building Facades |
0.6-0.8mm |
50-100mm |
High wind pressure resistance requirements |
|
Areas with Impact Resistance Requirements |
0.7-1.0mm |
Determined by insulation requirements |
Mechanical Strength Prioritized |
Common Installation Errors and Solutions
Based on feedback from our past clients, we have summarized some common installation errors in polyurethane metal wall siding panels, along with their solutions:
Error 1: Excessive Spacing Between Keels or Purlins
Symptoms: Wavy, uneven panel surface after installation; noticeable sagging at joints.
Solution: Strictly adhere to your (or our provided) design drawings when laying out the keel. Purlin spacing is recommended to be ≤1.5m, and the mid-span deflection of the panel should not exceed 1/300 of the span.
Error 2: Self-Tapping Screws Too Deep or Too Shallow
Symptoms: Screw heads are embedded in or protrude from the panel surface.
Solution: Use a pneumatic screwdriver with depth control, ensuring the screw head just touches the panel surface and the washer is slightly deformed.
Error 3: Neglecting Thermal Expansion/Contraction Allowance
Symptoms: Panel ends are jammed shut; no expansion/contraction allowance is left at panel joints.
Solution: Leave a 10-15mm expansion joint for every 10m of panel length; use low-modulus weather-resistant sealant, avoiding high-modulus structural adhesives.
Error 4: Inadequate Waterproofing at Joints
Symptoms: Leaks at window openings, corners, eaves, etc.
Solution: Strictly adhere to the "one board, two layers of glue" principle, requiring at least two sealing measures at each board joint; install waterproof edge trim at all openings; pay special attention to the drip line installation at the top of doors and windows.
Error 5: Improper Board Cutting Method
Symptoms: Rough edges from on-site cutting, coating cracking, exposed core material
Solution: Use a fine-toothed saw blade at a moderate cutting speed; immediately apply anti-rust edge sealant after cutting.
Error 6: Incorrect Lifting Method Leading to Board Bending
Symptoms: Board dents in the middle or breaks at the ends during lifting.
Solution: For lengths ≤ 6m, use two-point horizontal lifting; for lengths > 6m, use multi-point steel frame lifting. Single-point lifting or rope clamping is prohibited.
polyurethane metal wall siding panels Installation Quality Inspection Checklist
|
Inspection Item |
Acceptance Standard |
|
Plate Flatness |
Checked with a 2m straightedge, gap ≤3mm |
|
Verticality |
Checked with a theodolite/plumb bob, deviation ≤H/1000 and ≤10mm |
|
Joint Width |
Uniform and consistent, deviation ≤±2mm |
|
Nail Spacing |
usually ≤300mm, evenly distributed |
|
Sealant Fullness |
Continuous and full without breaks, width ≥8mm |
|
Waterproof Joints |
Our water spray test showed no leakage. |
Packaging Materials and Methods
We place particular emphasis on the safety of polyurethane metal wall siding panels during overseas transportation, therefore we have very strict requirements for packaging. Below, I will explain this in two parts: basic packaging requirements and container loading recommendations.
1. Basic Packaging Requirements:
|
Packaging Material Information: |
We use a four-layer protection system: pallet + stretch film + corner protectors + waterproof cover. Corner protectors are installed at all points where steel straps contact the pallet. |
|
Recommended quantity per pallet |
10-20 sheets/pallet, total height ≤ 1.2m. |
|
Isolation Measures |
Moisture-proof paper or PE film is laid between the pallets for isolation. |
|
Packaging Film Covering |
The entire pallet is fully wrapped with PE stretch film of 0.15mm or thicker. |
|
Waterproofing Measures |
A waterproof cover is installed on top, extending 300mm below the edge of the pallet. |
2. Container Loading Recommendations
|
Container Type |
Loading Height |
Precautions |
|
20ft Standard Container |
≤2.35m |
Utilize height fully, pay attention to total weight limits. |
|
40ft Standard Container |
≤2.35m |
Avoid excessively long pallets. |
|
40ft High Container |
≤2.65m |
Suitable for high-rise stacking |
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