Thanks to its excellent products and quality services, UNT Duct is one of the leading pir foam hvac ducting 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 Foam HVAC Ducting
PIR foam HVAC ducting is a high-performance, pre-insulated panel system featuring a rigid polyisocyanurate core. With an ultra-low thermal conductivity of 0.02 W/m·K and superior fire resistance, it ensures energy efficiency and safety. Its lightweight, closed-cell structure offers excellent durability and airtightness, making it an ideal alternative to traditional metal ductwork .
Structure: Silver Aluminum/ PIR Foam/ Silver Aluminum
Size: 3950*1200*20mm
Foam Density: 50kg/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)
The UNTDuct PU System: Redefining Air Distribution Excellence
More than just pre-insulated aluminum panels, the UNTDuct System is a comprehensive solution - complete with precision-engineered accessories, specialized machinery, purpose-built tools, and expert know-how - ensuring flawless construction and installation.
Pre-insulated PU Panels:
The system's base sandwich boards consist of closed-cell PU foam core bonded with double-sided aluminum foil, delivering outstanding energy saving, moisture resistance and hygienic performance compared to traditional GI ducts.
Pre-insulated duct Accessories:
Custom aluminum and PVC profiles, sealants, hanging hardware and prefabricated duct fittings perfectly match panel sizes to secure airtight, stable duct joints during assembly.
Fabrication Tools/ Equipment:
Specialized Machinery & Purpose-built Portable cutting, grooving and shaping hand tools plus optional automated processing machines support flexible on-site fabrication and standardized mass pre-production of duct components.
Know-How:
Professional Expert Know-how & Technical Support: Comprehensive technical training, customized design plans, construction guidance and after-sales consultation are provided to help clients handle all types of HVAC projects smoothly.
Spatial Game: From "Thickness Sacrifice" to "Floor Area Ratio" - The Economic Calculations
In the highly competitive commercial real estate market where every inch of space counts, the height of the ceiling directly determines the net floor height and construction cost of the building. Traditional iron sheet ducts often require the use of thick glass wool or rock wool for insulation, which occupy a large volume of space and force the building to increase the floor height, thereby significantly increasing the structural cost.
Data Deconstruction:
Thermal conductivity difference: The thermal conductivity of PIR foam is as low as 0.02 - 0.022 W/(m·K), which is much better than that of traditional glass wool, which is approximately 0.04 W/(m·K).
Actual savings in thickness: To achieve the same insulation effect, the total thickness of the insulation layer required for PIR ducts is only half or even less than that of traditional ducts.
Building cost correlation: Research shows that in commercial high-rise buildings, for every 10 cm reduction in ceiling height, approximately 2% to 3% of the vertical structure costs can be saved per floor. The use of PIR ducts means that under the same building height limit, one more floor can be added, or a more comfortable space experience can be provided with the same floor height. This "invisible" spatial value is often overshadowed by the unit prices listed in the purchase list, but it is the most important long-term gain that developers should pay attention to.
Climate Adaptability Game: The "Condensation Terminator" in Tropical Regions
In climate analysis, we often focus on the heat resistance of materials, but overlook the critical issue of "anti-condensation". In high-humidity regions such as Southeast Asia or southern China, the surface of traditional iron sheet ducts is prone to condensation under the influence of temperature differences, leading to rust, mold growth, and even "rain" on the ceiling.
New Perspective:
The cavity ratio determines success or failure: PIR foam has a cavity ratio of over 95%, which means its water vapor transmission rate is extremely low. It is not only a thermal insulation layer, but also a vapor barrier layer.
Market validation: Industry observations indicate that in high-temperature and high-humidity markets such as those in the United Arab Emirates, Saudi Arabia, and Southeast Asia, PIR and phenolic prefabricated air ducts have dominated due to their ability to effectively control condensation risks.
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