Polyurethane Foam Duct Board
It is a high-performance ventilation duct product, which is widely used in HVAC systems. The following is a detailed introduction:
Basic Structure: It is a sandwich structured panel. The core is polyisocyanurate (PIR) foam, which is a closed-cell insulating material. The two outer layers are aluminum sheets or aluminum foils.
Panel Structure: Silver Alu. Foil/ PIR Foam/ Silver Alu. Foil
Foam Density: 50-55kg/CBM
Panel Dimension: 3950mm*1200mm*20mm or 2900*1200*20mm
Alu. Foil: 60 or 80 Micron (Embossed)
Fire Rating: Class 0 (BS476Part 6&7) or Class A (ASTM E84)

Performance Characteristics of Polyurethane Foam Duct Board
Excellent Thermal Insulation: Low thermal conductivity (0.020–0.024 W/m·K) minimizes heat loss/gain, ensuring stable duct air temperature.
Closed-Cell Structure: 90%+ closed cells resist water absorption (<0.3%) and mold growth, suitable for humid environments.
Good Fire Safety: Typically Class B1 fire rating (per GB 8624), with low smoke toxicity and self-extinguishing properties.
Dimensional Stability: Low expansion/contraction rate (<1% at -30°C to 80°C), maintaining duct tightness long-term.
Main Production Process of Polyurethane Foam Duct Board








How to make Air Ducts with Polyurethane Foam Duct Board
The fabrication process of Pre-insulated Air Ducts






Project Case of Pre-insulated ductwork




Technical Advantages of Polyurethane Foam Duct Board

Lightweight & Easy Installation:
Weighs 3–5 kg/m² (lighter than metal ducts), reducing structural load; easy to cut/drill, cutting installation time by 30%+.
Energy Efficiency:
Reduces HVAC energy consumption by 15–25% vs. uninsulated or poorly insulated ducts.
Low Maintenance:
Corrosion-resistant (no rust like metal), requiring minimal upkeep; service life up to 20 years.
Eco-Friendly:
CFC/HCFC-free, low VOC emissions, complying with indoor air quality standards (e.g., LEED).
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