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Aluminium Faced PIR HVAC Duct

Aluminium Faced PIR HVAC Duct is a modern, high-performance alternative to traditional sheet metal ductwork. It is a prefabricated, rigid panel system used to create efficient air distribution networks for heating, ventilation, and air conditioning (HVAC) systems.

What It Is and How It's Made?

This duct is a pre-insulated sandwich panel. Its core is made of Polyisocyanurate (PIR) foam, a high-performance insulation material known for its excellent thermal properties and fire resistance. This core is permanently bonded on both sides to a protective layer of aluminum foil (or a thicker aluminum sheet for extra durability).

This design combines the structural duct, thermal insulation, and a vapor barrier into one lightweight board, simplifying the overall system. Standard technical specifications for these panels often include:

Core Density: ~53 kg/m³

Thermal Conductivity: ≤ 0.022 W/m·K (providing excellent insulation)

Standard Thickness: 10-42mm

Common Sizes: 1200mm width * 4000mm length

Fire Rating: Meets international standards like BS 476 Class 0 and ASTM E84 Class A due to the flame-retardant PIR core

Key Advantages of Aluminium Faced PIR HVAC Duct Over Traditional Ductwork

Energy Efficiency and Performance:

The PIR core's low thermal conductivity significantly reduces heat gain or loss, leading to substantial energy savings and helping to prevent condensation on the duct surface.

Lightweight Design:

These panels weigh significantly less than traditional galvanized iron (GI) or steel metal ducts, reducing the load on the building's structure and making transportation and handling easier.

Faster, Easier Installation:

Pre-insulated panels require only a single-step installation process, as opposed to the multiple steps needed for fabricating, wrapping, and insulating metal ducts. This can significantly shorten construction timelines.

Superior Airtightness:

The integrated panel system, especially with tongue-and-groove joints, provides excellent airtightness (often below 2% air leakage), which is critical for maintaining system efficiency and indoor air quality.

Long-Term Durability and Hygiene:

The smooth aluminum facing is corrosion-resistant, hygienic, and easy to clean, making it ideal for environments like hospitals and cleanrooms. It also resists dust, mold, and bacteria growth, contributing to better indoor air quality. The system is designed for a long service life, often 20-30 years, with minimal maintenance.

How to make Aluminium Faced PIR HVAC Duct

Creating a duct system from these panels is a fabrication process that requires specific tools and accessories.

The process typically involves:

Marking and Cutting: The panels are precisely measured and cut to the required dimensions.

Gluing, Folding, and Shaping: Special adhesives are applied, and the panels are folded to form rectangular duct sections.

Taping and Sealing: Joints and corners are sealed with specialized tape to ensure airtightness.

Applying Profiles and Reinforcement: Flanges, reinforcement bars, and silicone sealants are used to add structural strength and complete the system.