Thanks to its excellent products and quality services, UNT Duct is one of the leading pre-insulated phenolic hvac ductwork 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.

Pre-insulated Phenolic HVAC Ductwork

Pre-insulated phenolic ductwork represents a modern alternative to traditional sheet metal ducts, where the duct structure itself is fabricated from rigid phenolic foam panels with factory-bonded aluminum facings, integrating insulation and air conveyance in a single product.

Structure: Silver Aluminum/ Phenolic Foam/ Silver Aluminum
Size: 3950*1200*20mm
Foam Density: 50kg/m3
Aluminum Thickness: 0.06mm
Aluminum Color: Silver
Packing: 10 sheets/ package
Loading Capacity: 660 sheets/ 40'HQ (packed with cardboard box)

Advantages of Pre-insulated Phenolic HVAC Ductwork

Pre-insulated phenolic duct systems offer several benefits over conventional sheet metal ducts, which are fabricated on-site and then insulated externally or internally.

Installation Efficiency:

These systems are significantly lighter (over 70% lighter than sheet metal), allowing for longer prefabricated sections (up to 13 feet) and faster installation-up to three times quicker than traditional methods. This single-step installation combines ductwork and insulation, reducing labor and handling costs.

Energy Performance:

The closed-cell structure provides excellent thermal insulation, which helps reduce energy loss and can lower a building's overall carbon emissions. The smooth aluminum interior surface and sealed joints contribute to low air leakage, meeting stringent classes like SMACNA Class C or D.

Sustainability and Indoor Air Quality:

The fiber-free phenolic core and aluminum facing prevent insulation fibers from entering the airstream, improving indoor air quality and resisting mold growth. Many products are manufactured with zero ozone depletion potential (ODP) and low global warming potential (GWP) blowing agents, contributing to green building certifications like BREEAM and LEED.

Space Savings:

The ductwork can be installed flush with ceilings, saving valuable plenum space compared to externally wrapped metal ducts.