The Kingspan TR24 Thermaroof insulation board is a premium solution designed specifically for flat roof applications. Made from rigid PIR (polyisocyanurate) insulation, it delivers impressive thermal performance with a conductivity as low as 0.024–0.027 W/mK. This makes it one of the more energy-efficient choices available for both new build and refurbishment projects.
TR24 is compatible with most torch-on waterproofing systems, making it incredibly versatile across a wide range of flat roofing systems. Whether you're building from scratch or upgrading an existing flat roof, Kingspan TR24 provides excellent insulation while helping reduce energy costs over time.
Easy to Install, Built to Last
One of the key benefits of the Kingspan TR24 board is how simple it is to handle and install. It’s lightweight, easy to cut, and designed for a fast fit. Pre-bonded TR24 PB boards are also available for quicker installation—perfect for large-scale projects where time is of the essence. For added flexibility, Kingspan also offers TR24 in a tapered version to help create necessary falls in flat roofs.
Available Sizes
Kingspan TR24 comes in a variety of thicknesses to help meet different U-value requirements:
30mm – covers 7.2m² per Pack
50mm – covers 4.32m² per Pack
80mm – covers 2.8m² per Pack
100mm – covers 3.6m² per Pack
120mm – covers 2.88m² per Pack
130mm – covers 2.16m² per Pack
Key Features
Excellent thermal insulation with low conductivity (0.024–0.027 W/mK)
Compatible with torch-applied waterproofing systems
Lightweight and easy to handle and install
Available with pre-bonded waterproofing layers (TR24 PB) for quicker installs
Suitable for both new constructions and refurbishments
Available in tapered versions for drainage solutions
Frequently Asked Questions
1. Can Kingspan TR24 be used with any waterproofing system?
TR24 is designed to be compatible with most **torch-applied waterproofing systems**, which makes it ideal for both commercial and residential flat roof projects.
2. Is Kingspan TR24 suitable for retrofit projects?
Yes, it’s perfect for both **new builds and refurbishments**, offering excellent thermal performance and reducing the need for additional layers.
3. What’s the difference between TR24 and TR24 PB?
The standard **TR24** board is a standalone insulation board, while **TR24 PB** comes **pre-bonded** with waterproofing material to **speed up installation** and reduce on-site labour.
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