When you're looking for a high-performance, full-fill cavity insulation that offers more than just thermal efficiency, Kooltherm K106 delivers on all fronts. Designed with a 10mm residual cavity, it provides excellent insulation while offering protection against moisture ingress—thanks to its water-tight, vapour-open polypropylene fleece facing.
With a remarkably low thermal conductivity of 0.019 W/mK, K106 helps you meet required U-values without the need for bulky materials. This makes it a smart choice for new builds where space and performance are both priorities.
Why Choose Kooltherm K106?
Exceptionally thin and efficient, allowing high thermal performance with minimal wall thickness.
Features a vapour-open fleece outer layer that prevents moisture penetration while still allowing the wall to breathe.
Ideal for full-fill cavity wall construction, particularly where long-term thermal performance and moisture protection are key.
Lightweight and easy to handle, making transport and installation quicker and simpler on-site.
Compatible with BIM systems for integrated building design and planning.
Part of Kingspan’s Kooltherm range—known for delivering industry-leading thermal performance.
Board Size & Coverage
90mm thick
Board size: 1200mm x 450mm
Coverage: 2.16m² per Pack
Frequently Asked Questions
1. What makes Kooltherm K106 different from other cavity insulation boards?
K106 is specially designed for **full-fill cavity wall applications** and features a **unique fleece outer layer**. This makes it highly resistant to moisture while still delivering one of the **best thermal conductivities** available.
2. Is Kooltherm K106 suitable for all climates?
Yes, thanks to its **vapour-permeable yet waterproof facing**, it performs well in both wet and dry climates. It helps maintain the integrity of the building envelope without compromising on thermal efficiency.
3. Can I install K106 myself, or is a professional needed?
While the boards are lightweight and simple to handle, **professional installation is recommended**, especially for ensuring the correct cavity alignment and moisture protection in compliance with building regulations.
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