Description
25mm Kingspan Kooltherm K8 Cavity Board
Kingspan Kooltherm K8 25mm Cavity Board provides a high-performance insulation solution for masonry cavity wall construction. The board combines a fibre-free, closed-cell thermoset phenolic insulation core with reflective composite foil facings on both sides.
The reflective foil facings help improve the thermal resistance of the cavity. In addition, the slim 25mm profile provides an efficient insulation option where cavity space remains limited.
Kooltherm K8 helps maintain a clear cavity while providing effective thermal insulation. As a result, it can help improve the overall thermal performance of masonry cavity wall systems.
Furthermore, the board suits a range of residential and commercial masonry wall applications. Kingspan manufactures K8 in Australia, while CodeMark certification supports its use for relevant NCC compliance requirements.
Key Features
- 25mm nominal thickness
- Declared product R-value of R1.10
- 1200mm x 514mm board size
- Approximately 0.61m² coverage per board
- Fibre-free, rigid thermoset phenolic insulation core
- Reflective composite foil facings
- Suitable for masonry cavity wall applications
- Helps improve cavity thermal performance
- Helps maintain a clear cavity
- CodeMark-certified for relevant NCC compliance requirements
- Manufactured in Australia
Why Choose 25mm Kingspan K8?
The 25mm K8 board provides a practical solution when you need effective insulation without taking up excessive cavity space. Furthermore, its rigid phenolic core provides a high level of thermal performance for its thickness.
The reflective foil facings also contribute to the board’s thermal performance. Therefore, K8 can help improve insulation within masonry cavity wall systems while retaining a clear cavity.
In addition, the 1200mm x 514mm board size provides approximately 0.61m² of coverage per board, making it straightforward to calculate material requirements for your project.
Technical Information
Thickness: 25mm
Dimensions: 1200mm x 514mm
Coverage: 0.61m² per board
Declared R-value: R1.10
Declared thermal conductivity: 0.023 W/m·K at 23°C for 25–44mm insulation thickness
Foil face emittance: E0.06
Always check the latest Kingspan technical documentation and installation requirements before specifying or installing the product.
See the full Kingspan range available here.
📞 Call us on 03 8339 7111 to confirm stock or ask about lead times
Pickup location: 56 Yellowbox Drive, Craigieburn VIC
🕒 Business hours: Mon–Thurs 6:30am–4:00pm | Fri 6:30am–3:00pm
🚚 Delivery is also available across Melbourne during business hours
