Description
Kingspan AIR-CELL Insulbreak 55 – Multi-Function Insulation, Thermal Break and Vapour Barrier in One
Kingspan AIR-CELL Insulbreak 55 is a high-performance triple-duty insulation solution designed specifically for steel-framed buildings. It combines reflective insulation, a thermal break, and a Class 1 vapour barrier into one efficient layer.
This makes it ideal for external walls and metal roofing systems where condensation control, radiant heat resistance, and compliance with NCC requirements are essential. With a nominal thickness of 6.5mm, Insulbreak 55 delivers strong thermal performance without adding bulk.
Purpose-Built for Steel Frame Construction
Unlike traditional insulation, Insulbreak 55 is engineered to act as a thermal break, helping to prevent thermal bridging in steel wall and roof systems. As a result, it significantly improves energy efficiency and reduces the risk of condensation forming behind cladding.
Moreover, it helps builders meet the National Construction Code (NCC) requirement for thermal breaks in steel-framed buildings.
Easy to Install, Built to Last
Although it’s lightweight, Insulbreak 55 is incredibly durable. It’s tear-resistant, flexible, and easy to cut and fit on-site. Because it’s fibre-free and non-toxic, it’s also safer and more comfortable to work with compared to bulkier alternatives.
In addition, it can be installed over steel battens or under roofing sheets, reducing labour and simplifying the build process.
Provides Vapour Barrier and Radiant Heat Protection
Not only does Insulbreak 55 provide insulation and a thermal break — it also acts as a Class 1 vapour barrier. This feature helps control internal moisture, minimising the risk of mould or deterioration inside the wall cavity.
Furthermore, its reflective foil surface reduces radiant heat gain, especially under metal roofs exposed to direct sun. This makes it a smart solution for both hot and humid Australian climates.
Compatible with a Full Building Envelope System
Insulbreak 55 works seamlessly with other Kingspan products, such as Kooltherm K12 for walls or Permicav XV for cavity applications. Therefore, it allows you to create a complete insulation system that performs across all building zones.
Using a cohesive system also simplifies energy compliance, giving designers and installers more flexibility.
Why Choose Kingspan AIR-CELL Insulbreak 55?
✅ Combines thermal break, insulation, and vapour barrier in one product
✅ Just 6.5mm thick – space-saving and efficient
✅ Complies with NCC requirements for steel-framed buildings
✅ Reduces thermal bridging and improves energy performance
✅ Lightweight, durable, and safe to install
✅ Suitable for roofs, external walls, and steel-framed applications
When your build calls for insulation that does more, Kingspan AIR-CELL Insulbreak 55 delivers thermal, moisture, and compliance performance in one trusted solution.
Overview, technical information & downloads also available.
Order Kingspan AIR-CELL Insulbreak 55 – Pickup or Delivery
📞 Call us on 03 8339 7111 to check availability or ask about roll sizes
📍 Pickup location: 56 Yellowbox Drive, Craigieburn VIC
🕒 Business hours: Mon–Thurs 6:30am–4:00pm | Fri 6:30am–3:00pm
🚚 Delivery available across Melbourne and surrounding suburbs
