Name: Aluminium Faced PIR Air Duct Board Suppliers and Manufacturers - China Factory - UNT Duct
Brand: UNTDuct
SKU: 305661716

Thanks to its excellent products and quality services, UNT Duct is one of the leading aluminium faced pir 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 PIR Air Duct Board

Aluminium Faced PIR Air Duct Board is a pre-insulated composite panel used primarily for Heating, Ventilation, and Air Conditioning (HVAC) ductwork. It's a modern alternative to traditional metal ducts, designed to be lightweight, energy-efficient, and quick to install.

This "sandwich" board is a composite of two main materials:

The Core: PIR (Polyisocyanurate) Foam. This is the insulation layer. It is a closed-cell foam known for its excellent thermal properties (with a very low thermal conductivity of around 0.022 W/m·k) and high fire resistance.

The Facings: Aluminium Foil or Sheet. This acts as a protective, airtight, and corrosion-resistant layer on both sides of the foam. The thickness can vary (e.g., 60 or 80 microns for internal use or 200 microns for more durability in external environments)

Structure: Silver Aluminum/ PIR Foam/ Silver Aluminum
Thermal Conductivity: 0.022w/m.K

Fire Rating: Class 0 (BS 476 Part 6&7)

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Key Features and Advantages of Aluminium Faced PIR Air Duct Board

Feature	Description
Thermal Performance	The PIR core is an excellent insulator, which helps keep air at the desired temperature as it travels through the duct, reducing energy loss.
Fire Safety	PIR foam has a high fire resistance rating (often Class 0 or B1-s2,d0), making it a safe choice for building ventilation systems.
Lightweight	The panel is significantly lighter than traditional galvanized steel ductwork, which eases handling and reduces the load on a building's structure.
Installation Efficiency	Ducts are made by cutting, folding, and sealing the boards. This process is faster and requires less heavy equipment than fabricating metal ducts.
Durability	The aluminium facing provides a robust, corrosion-resistant surface, and the product is designed for long service life (e.g., 15-20+ years).

The thickness of the board is chosen based on the project's needs, with common thicknesses being 20mm and 30mm. The boards come in standard sizes, such as approximately 3950mm x 1200mm, to streamline the fabrication of duct sections.

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Performance Analysis of Aluminium Faced PIR Air Duct Board

Energy-saving benefit analysis
The PIR closed-cell structure combined with aluminum foil for heat reflection results in significantly lower heat loss compared to traditional ducts, reducing the energy consumption of the air conditioning system by 20% - 30%; the high airtightness reduces air leakage, leading to a significant decrease in long-term operating costs, and offering better economic performance throughout the entire life cycle.

Safety and environmental analysis
PIR is a thermosetting material that does not melt or drip when exposed to fire and is flame-retardant and stable; the aluminum foil has no volatility and is easy to clean, meeting the hygiene requirements for clean spaces; the material is recyclable and aligns with the trends of green buildings and low-carbon emission reduction.

Engineering application value
The self-weight is only 1/3 of that of traditional insulation ducts, reducing the building load and support costs; standardized prefabrication reduces on-site errors, making it suitable for renovation projects and compact spaces, shortening the construction period and improving the delivery quality.

Main Production Process of Aluminium Faced PIR 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

Project Case of UNT Ductwork

Specification

Item	Unit	Specification
Standard Panel Size	mm	3950x1200x20
Alu. Foil Thickness	mm	0.06 or 0.08
PIR Foam Density	kg/m³	50-55
Fire Safety (BS476Part 6&7)		Class 0
Thermal Conductivity	W/(m·K)	0.020
Compressive Strength	MPa	0.2
Bending Strength	MPa	2
Water Absorption	%	0.36
Dimension Change	%	0.3
Working Temperature	℃	-60 to +80
Max Pressure in duct	Pa	1500
Maximum Allowable Wind Velocity	m/s	≤15
Max Continuous Running Temperature	℃	≤70
Lifespan of PIR Air Duct	years	>20

PRE-INSULATED DUCT vs G.I. DUCTWORK

Metric	20mm PIR 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 PIR 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 PIR. 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. PIR 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 PIR, 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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