Kingspan Thermaroof TR26 is a premium PIR insulation board designed for flat roof applications. With an impressive thermal conductivity of 0.022 W/mK, it’s one of the more efficient insulation options on the market. It’s compatible with most mechanically fixed single-ply waterproofing systems as well as green roof systems, making it a go-to choice for a wide variety of roof designs.
This board is ideal for both new build and refurbishment projects, providing reliable performance across a range of building types. Its fast and straightforward installation process also makes it a great fit for fast-track building programmes.
Easy Installation and Versatile Compatibility
What sets TR26 apart is its ease of handling and cutting. It’s much more manageable on-site compared to many traditional insulation materials. Whether you're working with a mechanically fixed membrane or implementing a green roof system, TR26 can adapt to your project needs.
It’s also available in a tapered version, which helps create the necessary falls in flat roofs to encourage water run-off—crucial for effective drainage. Additionally, TR26 can be specified with FM Approval to FM 4470 for projects requiring certified roofing systems.
Available Sizes
TR26 boards are available in a wide range of thicknesses to suit your U-value requirements:
25mm – 34.56m² per Pack
50mm – 17.28m² per Pack
60mm – 14.4m² per Pack
80mm – 11.52m² per Pack
90mm – 8.64m² per Pack
100mm – 8.64m² per Pack
110mm – 8.64m² per Pack
120mm – 5.76m² per Pack
130mm – 5.76m² per Pack
140mm – 5.76m² per Pack
150mm – 5.76m² per Pack
Key Features
High thermal efficiency: Lambda value of 0.022 W/mK
Compatible with single-ply membranes and green roof systems
Lightweight and easy to handle
Tapered options available for drainage design
Ideal for fast-track construction and commercial projects
FM Approved version available for added peace of mind
Frequently Asked Questions
1. Can Kingspan TR26 be used on green roofs?
Yes, TR26 is fully compatible with most green roof systems. Its rigidity and durability make it suitable for supporting vegetation layers on flat roofs.
2. Is it suitable for refurbishment projects?
Absolutely. Kingspan TR26 is a great solution for both new builds and retrofits, thanks to its ease of installation and thermal performance.
3. What type of waterproofing system works best with TR26?
TR26 is designed to work with **mechanically fixed single-ply membranes**. It’s also compatible with a wide range of other waterproofing options commonly used in flat roof applications.
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