Ductus is Australia's leading supplier of lightweight pre-insulated duct technology, delivering high-performance air distribution systems that redefine the way HVAC ductwork is designed, fabricated, and installed.

Developed specifically for the Australian market, the Regal Duct System combines advanced PIR insulation technology with Australian-engineered accessories and fabrication systems to deliver a complete, fully integrated duct solution. Designed to meet the demands of modern commercial, healthcare, industrial, education, pharmaceutical, cleanroom, and infrastructure projects, Regal offers exceptional thermal efficiency, airtightness, durability, and ease of installation.

Unlike conventional duct systems, Regal has been engineered as a complete system rather than simply an insulated board. Every component—including duct board, joining profiles, corners, sealants, adhesives, tapes, support systems, and fabrication accessories—has been developed to work together, ensuring optimum performance, reliability, and long-term durability.

Not all pre-insulated duct boards are created equal. The insulation core is the foundation of the entire duct system and plays a critical role in its structural integrity, thermal performance, moisture resistance, and long-term service life. Regal utilises a high-performance closed-cell PIR core with premium aluminium facings, delivering outstanding mechanical strength, minimal water absorption, superior thermal performance, and exceptional resistance to demanding operating environments.

Supported by comprehensive third-party testing and compliance with the relevant Australian Standards, Regal has been developed to meet the stringent requirements of the National Construction Code (NCC), including applications ranging from standard commercial buildings through to hospitals, cleanrooms, laboratories, food processing facilities, aquatic centres, and high-performance infrastructure projects.

Backed by Ductus' national network of fabrication partners, technical support, and engineering expertise, Regal is more than a duct system—it is a complete HVAC solution engineered for performance, compliance, and longevity.

Ductus – The Evolution of Air.