Kingspan K106

The high-performance Kingspan K106 keeps your home warm without taking up much space. Its thin build fits neatly into narrow cavities while still delivering excellent insulation.

What is Kingspan Kooltherm K106?

Kooltherm K106 is a phenolic insulating panel for cavity walls. It is intended for full-fill cavities, where the panel completely fills the gap between the inner and outer leaves. Its size, edging profile, and solid rigidity mean it extends to the outer leaf, leaving a 10mm residual cavity for moisture drainage.

Using the board in a full-fill setup helps prevent vapour-related issues when installed correctly and helps meet building regulations for cavity wall insulation.

The phenolic core significantly reduces heat transfer by creating an ultra-low-thermal conductivity structure. This is paired with low-emissivity foil facings that bounce heat back into the building, making the structure more energy-efficient.

What is K106 cavity board insulation used for?

The K106 Kingspan is used in applications like:

• Full-fill cavity walls in new builds.
• Masonry cavity walls that require high thermal performance without widening the cavity.
• Extensions that must match or improve the U-value of the existing home.
• Developments on tight plots, where wall build-ups need to stay slim.
• Energy-efficient builds that aim for lower heat loss while using traditional brick-and-block construction.
• Projects that replace older PIR cavity boards with thinner, more effective alternatives.

Benefits of K106 Kingspan Kooltherm

Below are some benefits of installing the K106 cavity board:

• High performance in a narrow wall build – The phenolic core delivers strong thermal performance without requiring a wide cavity.
• Helps achieve high U-values – Great for energy-efficient homes, extensions, and sites with tight space limits.
• Foil facings boost heat retention – They reflect warmth back inside to keep interiors warm.
• Keeps the cavity drier – Its rigid shape and snug-fitting edges reduce the risk of gaps forming that could allow wind-driven rain to track behind the board.
• Rebated edge profile – Precision-cut rebated edges reduce thermal bridging and ensure tighter joints.
• Light and simple to handle – Easy for installers to work with.
• Ideal for brick-and-block builds – Works neatly with standard cavity ties and full-fill wall setups.

Why choose our K106 Kingspan insulation?

This is why customers trust Insulation Wholesale for K106 panels:

• Genuine Kingspan product – Every board we sell is authentic, giving you the quality and performance you expect.
• Competitive, builder-friendly pricing – Get premium insulation at low prices.
• Expert advice and support – Our team has extensive knowledge of K106 and can help you choose the right quantity and provide installation tips.
• Easy to order in any quantity – Whether it is a single pack for an extension or bulk for a large site, we’ve got you covered.
• Ready for UK delivery – Fast, reliable shipping so your project doesn’t stall for a moment.

Order your Kooltherm K106 cavity boards today and enjoy genuine Kingspan quality at an affordable price. Fast UK delivery available on all orders.