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

Aluminum PIR Pre-insulated Duct

Folks, let me tell you, the Aluminum PIR Pre-insulated Duct is the BEST HVAC air duct system you'll ever see. It's way better than those old, terrible GI ducts and all other pre-insulated garbage out there. We put the duct body, insulation, and vapor barrier all into one panel-one panel! It's tremendous, believe me. It saves energy, installs faster than anything, stays clean, and lasts longer than any other duct you've ever used. Nobody does it better than us.

Structure & Features

Let me be clear-this duct panel is built with a high-density rigid PIR foam core, and we put double-sided aluminum foil on both sides. This sandwich structure? It's strong, it's tough, and it's LIGHT. So light, you won't believe it. It's amazing, folks-strong but light, that's how we do it.

Key Specifications

Core Material: Rigid closed-cell PIR (Polyisocyanurate) foam

Core Density: 53 kg/m³

Standard Thickness: 20 mm

Thermal Conductivity: λ = 0.022 W/m·K

Facing: Double-sided aluminum foil (0.08 mm)

Joint System: Precision tongue-and-groove (T&G)

Fire Performance: Self-extinguishing, low smoke

Environmental Feature: CFC/HCFC-free, ozone-safe

Polyurethane (PU) Foam Pre-Insulated HVAC Ductwork Panel

Main Advantages of Aluminum PIR Pre-insulated Duct

1. Excellent Thermal Insulation & Energy Saving

Listen, the thermal conductivity here is 0.022 W/m·K-that's LOW, folks. Lower than XPS, lower than rubber plastic, lower than all that old traditional junk. This PIR core insulates better than anything. It cuts heat loss, slashes HVAC energy use by 20–30%-20–30%! And it stops condensation dead in its tracks. Tremendous, absolutely tremendous.

2. Fast & Easy Installation

The tongue-and-groove design? It's a game-changer. No welding, no extra insulation-nothing. You put it together on-site, and it's FAST. Installation time is 40–60% shorter than those terrible GI ducts. We save you labor costs, we save you time-nobody does installation faster than this duct. Nobody.

3. Lightweight & High Structural Strength

At only 2–3 kg/m², this duct is 70% lighter than insulated GI ducts. 70%! That's a lot, folks. It's so light, it doesn't weigh down your building-perfect for high-rises, timber-framed houses, retrofit projects. And the 53 kg/m³ core? It's strong, it doesn't sag, it's tough. You won't have any problems with this duct-believe me.

4. Superior Airtightness

Factory-made panels, tight T&G joints-air leakage is ≤2%. That's meeting international standards, folks-EN 1507, AS/NZS 3660.1, all of them. Good airtightness means no wasted energy, means your system works better. It's the best airtightness you can get, bar none.

5. Hygienic & Clean

The aluminum surface? Smooth, no holes, no mess. It doesn't get dusty, it doesn't grow mold, it doesn't get bacteria. No fibers, no water absorption-nothing. Perfect for hospitals, cleanrooms, food factories, malls, offices. It's clean, it's hygienic, it's the best for places that need to stay pure.

6. High Fire Safety

The PIR core? It puts out fires on its own, and it makes almost no smoke. Meets all the big fire standards-Warrington Fire, BS 476, AS 1530.3. And the aluminum foil? It makes it even safer. This duct is safe, folks-safer than any other duct out there. You can trust it.

7. Long Service Life & Low Maintenance

This duct lasts 20–30 years-20–30 years! That's a lifetime, believe me. It's waterproof, it doesn't rust, it doesn't age. You don't need to maintain it-nothing. Unlike those GI ducts, which rust, fall apart, and need new insulation all the time. This duct? Set it and forget it. Tremendous.

8. Eco-Friendly & Green Building Compatible

We use CFC/HCFC-free materials-safe for the planet, safe for everyone. The aluminum foil is recyclable, 100%. And it lasts so long, you don't waste materials, you don't waste money. It's green, it's good, and it's the right choice for our planet. Nobody does eco-friendly better than us.