PIR Ventilation Duct Board

Thanks to its excellent products and quality services, UNT Duct is one of the leading pir ventilation 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 Ventilation Duct Board as a premium high-performance solution for modern HVAC systems. Built as an integrated sandwich composite with aluminium foil surfaces and rigid PIR foam core, they outperform traditional galvanised steel ducts needing field insulation. Widely adopted across numerous projects, they are the preferred choice for hotels, office buildings, airports, hospitals and other commercial & public constructions.

Structure: Silver Aluminum/ PIR Foam/ Silver Aluminum
Size: 3950*1200*20mm
Foam Density: 50-55kg/m3
Aluminum Thickness: 0.06mm or 0.08mm
Aluminum Color: Silver
Packing: 10 sheets/ package
Loading Capacity: 710 sheets/ 40'HQ (packed with plastic bags)
660 sheets/ 40'HQ (packed with cardboard box)

Core Performance Advantages of PIR Ventilation Duct Board

Outstanding heat insulation efficiency

 

The thermal conductivity is as low as 0.018 to 0.024 W/(m · K), and with a closed-cell rate of ≥95%, it effectively blocks air convection and water vapor penetration, and its heat insulation performance is superior to that of EPS and ordinary PU materials. The volume change rate is extremely small within the extreme temperature range of -196 ℃ to + 120℃, making it suitable for full-scenario insulation from deep cold to medium and high temperatures.

 

Structural strength and durability

 

The compressive strength reaches 150 to 300 kPa, capable of withstanding the loads of shelves, equipment, etc. It is not prone to shrinkage or cracking even after long-term use, and its service life can exceed 20 years, significantly reducing maintenance costs. ​

Why PIR Ventilation Duct Board is a Smart Choice?

1.Stable Temperature & Significant Energy Savings

Boasting ultra-low thermal conductivity, the PIR foam core prevents winter heat loss and summer heat gain. It reduces HVAC workload to hold steady indoor temperatures, delivering up to 40 % energy savings versus traditional ducts, lowering energy bills and carbon footprint.

2.Reliable Fire-Resistant Safety Performance

PIR foam features intrinsic fire-retardant properties. Under flame attack, it forms a solid char barrier to slow fire spread and limit toxic smoke output. Qualified for strict standards such as Class 0, it is well-accepted for hospitals, schools and high-rise buildings.

3.Moisture-Resistant & Long-term Durability

Its closed-cell structure repels water vapour to stop mould and humidity-induced insulation failure. Aluminium outer skins resist corrosion, rust and physical damage, supporting 20+-year service life with little maintenance.

4.Clean Air Delivery & Low-Resistance Airflow

Smooth aluminium inner surface discourages dust and bacteria build-up, critical for healthcare and food-grade environments. Reduced air friction guarantees efficient airflow without extra energy consumption.

5.Light-Weight Prefab Design for Quick Installation

Much lighter than metal ducts, prefabricated PIR ducts simplify transport and assembly. Standard sizes plus simple connection hardware slash on-site construction time by 50 %, shortening project cycles and labour costs.

6.Wide-Ranging Application Flexibility

Applicable to apartments, malls, hotels and industrial plants. Supports exposed or concealed installation; custom bends and special shapes are available to fit any building layout.

PIR Pre-insulated Aluminium Duct combines energy-saving, safety and durability, being the optimal choice for modern buildings pursuing comfort, cost-efficiency and dependable performance.