PU Pre-insulated HVAC Duct Board

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

 

Are you still struggling with traditional sheet metal ducts that are heavy, prone to thermal loss, and require separate insulation wrapping?

It's time to upgrade to the PU (Polyurethane) Pre-insulated HVAC Duct Board – the next-generation solution for air conditioning and ventilation systems.

 

What is it?

The PU Duct Board is a rigid, sandwich-type panel. It consists of a high-density polyurethane foam core sandwiched between two layers of reinforced aluminum foil or specialized polymer-coated facings. This is not just insulation; it is a complete duct system in one board.

1. Superior Energy Efficiency (Save up to 30% on operating costs)
Traditional ducts leak cool air through uninsulated metal. PU foam has a closed-cell structure with a very low thermal conductivity (approx. 0.020 W/m·K). This means the air you cool or heat stays that temperature until it reaches the room. Lower heat gain/loss = Lower electricity bills.

2. Fast & Clean Installation (Cut labor time by 50%)
Forget heavy guillotines, rivets, and sticky fiberglass wraps. Our PU duct boards are easily cut with standard hand tools using the "duct-in-a-box" method. They snap together using aluminum foil tape or male/female grooves.

Lightweight: 1/10th the weight of metal ducts – easy to lift and mount.

No external insulation needed: It is built-in.

No fiberglass itch: A clean, safe worksite.

3. No Condensation & Mold Growth
Because the insulation is fully integrated and continuous, the outer surface of the duct stays at room temperature. This completely eliminates sweating (condensation) , which is the primary cause of ceiling stains, water damage, and black mold growth inside air handlers.

4. Acoustically Superior
Metal ducts are loud; they transmit fan noise and "oil-canning" sounds. The polyurethane core acts as a sound barrier, absorbing noise from the AHU and reducing cross-talk between rooms. Perfect for hotels, hospitals, and offices.

5. Leak-Free & Durable
When sealed correctly with approved sealants and tapes, PU duct boards achieve very low leakage rates (often Class A). The outer facings are resistant to corrosion, UV exposure (short term), and most chemicals.