Name: Aluminium Faced PU Air Duct Board Suppliers and Manufacturers - China Factory - UNT Duct
Brand: UNTDuct
SKU: 305747856

Thanks to its excellent products and quality services, UNT Duct is one of the leading aluminium faced pu air 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.

Aluminium Faced PU Air Duct Board

Aluminum Faced PU Air Duct Board is a pre-insulated panel system designed as a modern, high-performance alternative to traditional metal ductwork for HVAC applications.

What It Is?

This board is a composite sandwich panel featuring a rigid closed-cell polyurethane (PU) foam core permanently bonded between two layers of aluminum foil. It is designed as an all-in-one solution that serves as both the air channel and the thermal insulation, eliminating the need for separate external insulation commonly required with metal ducts.

Key Technical Specifications

Specification	Details
Core Material	Polyurethane (PU) Closed-Cell Foam
Facing Material	Embossed Aluminum Foil (both sides)
Standard Panel Size	3950mm x 1200mm
Standard Thickness	20mm
Aluminum Foil Thickness	0.06 - 0.08mm (60-80 microns)
Foam Density	Approx. 48 kg/m³
Thermal Conductivity	~0.020 W/(m·K)
Service Life	Over 20 years

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Advantages of Aluminium Faced PU Air Duct Board

The Aluminium Faced PU Air Duct board's structure provides several key benefits over traditional metal ducts:

Superior Thermal Efficiency:

The PU foam core has a very low thermal conductivity (around 0.020 W/(m·K)), which minimizes energy loss from conditioned air and can cut HVAC energy consumption by an estimated 15-25%.

Lightweight and Fast Installation:

The board is about 70% lighter than galvanized iron ducts, making it easier to handle and transport. The integrated design allows for installation to be up to 40% faster, as it requires no additional on-site insulation.

Excellent Airtightness:

When properly sealed, the system can be up to eight times more airtight than traditional metal ducts, significantly reducing air leakage and further improving efficiency.

Hygienic and Durable:

The smooth aluminum inner surface resists corrosion, dust, and bacterial growth, making it suitable for hygiene-sensitive environments like hospitals and food processing facilities. The closed-cell foam is also highly moisture-resistant, preventing mold and condensation.

Acoustic and Fire Performance:

The foam core acts as a sound barrier, dampening airflow noise. The panels are also manufactured with fire-retardant materials and comply with stringent international fire safety standards.

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Main Production Process of Aluminium Faced PU Air Duct Board

1. Raw Material Mixing

2. Aluminum foil embossing

3. PIR Foam Injection

4. Foaming & Laminating

5. Pre-insulated Panel Cutting

6. Duct Panel auto-stacking

7. Packing of Pre-insulated duct

8. Stocking of PID panel

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Why choose UNTDuct

UNT Pre-insulated Ductwork

What is UNT Duct System

UNT Duct System

PRE-INSULATED DUCT vs G.I. DUCTWORK

Metric	20mm PU Pre - Insulated Duct (with 0.08mm Alu. Foil, )	0.5mm G.I Duct + 30mm Rubber Plastic (40-90kg/m³)
Fire Safety	Compliant (Class 0/BS 476, AS 1530.3). Self-extinguishing PU core, low toxic smoke, non-combustible alu foil.	G.I non-combustible; rubber plastic fire-retardant but requires coating to meet strict codes.G.I
Thermal Insulation	Excellent. λ=0.020 W/m·K, no thermal bridging. 20mm integrated structure ensures consistent insulation.	Fair. λ=0.035 W/m·K, thermal bridging at G.I joints. 30mm insulation offset by metal conductivity.
Hygiene & Air Quality	Superior. Non-porous alu foil, smooth inner surface, moisture-resistant PU. Meets cleanroom/hospital standards.	Poor. Porous rubber plastic traps dust/mold; G.I-insulation gaps breed pathogens.
Lightweight	1.4-1.5 kg/m². Ultra-light, reduces structural load; ideal for retrofits/timber-framed buildings.	5.1–6.3 kg/m². Heavy G.I base + bulk insulation; requires reinforced supports.
Energy Efficiency	Excellent. 20–30% lower HVAC energy consumption. Minimizes heat gain/loss in conditioned air.	Low. 20–30% higher energy loss due to inferior insulation and thermal bridging.
Ease of Construction	Easy. Factory-prefabricated tongue-and-groove joints. No separate insulation step; 40–60% less labor time.	Complex. Two-step on-site process: G.I duct fabrication + rubber plastic wrapping. Labor-intensive, prone to gaps.
Quiet Operation	Good. PU core absorbs 10–15 dB airflow noise; alu foil dampens vibration.	Fair. Rubber plastic provides basic sound reduction, but G.I vibration and insulation gaps reduce efficiency.
Space Savings	Excellent. 20mm total thickness (all-in-one). Fits tight ceilings/retrofit cavities.	Poor. 30.5mm total thickness (0.5mm G.I + 30mm insulation). Bulky, requires larger installation space.
Environmental Friendliness	Balanced. CFC/HCFC-free PU, recyclable alu foil. 20–30-year lifespan; net carbon positive in 1–3 years.	Low. Rubber plastic non-recyclable; 10–15-year lifespan. Frequent replacement increases waste; higher energy emissions.
Air Leakage	Superior. ≤2% air leakage (EN 1507, AS/NZS 3660.1). Airtight factory joints + alu foil vapor barrier.	Poor. 5–10% air leakage. On-site sealing gaps; separate vapor barrier required.

Performance comparison based on UNT Duct product data and standard system configurations. Actual performance may vary depending on system design, installation method and project conditions.

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