Thanks to its excellent products and quality services, UNT Duct is one of the leading pir pre-insulated aluminum duct board manufacturers and suppliers in China. Welcome to buy the high quality and customized products from our factory. We will offer you the best service and fast delivery.
PIR Pre-insulated Aluminum Duct Board: The Next Generation of High-Performance HVAC Ducting
Are you looking for an HVAC ducting solution that is lighter, stronger, and more energy-efficient than traditional sheet metal or fiberglass ducts? Meet the PIR Pre-insulated Aluminum Duct Board – a revolutionary composite material engineered for modern heating, ventilation, and air conditioning systems.
What Is It?
PIR (Polyisocyanurate) duct board is a rigid, sandwich-type panel. It consists of a high-density closed-cell rigid PIR foam core, permanently bonded to a high-purity aluminum foil on both sides. This "sandwich" eliminates the need for separate external insulation or internal lining.
Structure: Silver Aluminum/ PIR Foam/ Silver Aluminum
Fire Safety: Class 0 (BS 476 Part 6&7), Class A (ASTM E84)
Thermal Conductivity: 0.022W/M.K
Key Benefits of PIR Pre-insulated Aluminum Duct Board for your projects
| Key Benefits | Why It Matters for You |
|---|---|
| 🔥 Superior Fire Safety | PIR foam is inherently fire-retardant – chars, does not drip flaming particles, and produces low smoke. Meets ASTM E84 Class A / BS 476. |
| ⚡ 30% Lower Energy Bills | Ultra-low thermal conductivity (≤0.022 W/m·K). Built-in aluminum vapor barrier stops condensation & thermal loss. |
| 🪶 80% Lighter than Steel | Reduces building structural load. Lower shipping costs. Easy to carry and install by hand. |
| 🔧 50% Faster Installation | Cut, score, and fold with simple hand tools. No heavy machinery. Assembles with aluminum tape or sealants. |
| 🌿 Mold-Free & No Fibers | Smooth closed-cell surface does not shed fibers. Resists moisture, mold, and mildew. Ideal for hospitals & cleanrooms. |
| 🧪 Corrosion Resistant | Aluminum facings withstand humidity, chemicals, and UV (when coated). Lasts decades without degradation. |
PIR Pre-insulated Aluminum Duct Board vs. Traditional Ducts
| Features | PIR Aluminum Duct | Sheet Metal + External Insulation | Fiberglass Duct Board |
|---|---|---|---|
| Thermal performance | Excellent | Good (depends on insulation) | Average |
| Fire safety | Excellent | Very good | Poor (fiber shedding) |
| Weight | Very light | Very heavy | Light |
| Installation speed | Very fast | Slow | Moderate |
| Corrosion/fungal risk | None | Moderate (if insulation gets wet) | High (when moist) |
| Air leakage | Very low (joints taped) | Moderate (many seams) | Low |
| Lifetime cost | Low | High | Moderate |
Why Choose Our PIR Duct Board?
✅ Certified Quality: All boards are tested for fire, thermal, and mechanical performance by third-party labs.
✅ Custom Sizes: We offer standard 4'x8' sheets, or cut-to-size service for large projects.
✅ Technical Support: Free layout design, fabrication training, and on-site guidance.
✅ Eco-Friendly: PIR foam contains no CFCs/HCFCs, and the board is 100% recyclable at end of life.
UNTDuct PIR System
| Property | Value |
|---|---|
| Core Material | Polyisocyanurate (PIR) rigid foam |
| Facing | Embossed/Aluminum foil (60 or 80 microns) |
| Density (core) | 45–55 kg/m³ |
| Thermal conductivity | ≤ 0.022 W/(m·K) at 10°C |
| Compressive strength | ≥ 150 kPa |
| Operating temperature | -50°C to +120°C |
| Fire rating | Class A or B-s1, d0 (varies by standard) |
| Thickness options | 10mm/ 20mm / 25mm / 30mm/ 40mm |
| Width | 1200mm |
| Length | from 2000 to 4000 mm |
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