Description

Frameclad is a high-performance, non-combustible stone wool insulation board designed for use within framed wall constructions, including steel framing systems (SFS), timber frame structures, and masonry infill wall assemblies.

Manufactured from natural volcanic basalt, Frameclad features an optimised density and a non-directional fibre structure that enables easy friction-fit installation between studs and framing members. This allows the insulation to accommodate minor tolerances, helping to minimise gaps and significantly reduce thermal bridging within the wall system.

With a nominal density of 50 kg/m³ and a declared thermal conductivity of λ = 0.035 W/mK, Frameclad contributes to achieving low U-values while delivering excellent acoustic performance. Its open fibre structure enhances sound absorption (-55-65 dB), improving internal comfort in both residential and commercial buildings.

Frameclad is classified as Euroclass A1 (non-combustible) and is suitable for buildings of any height, including high-rise developments, in accordance with UK Building Regulations.

Typical applications

• Steel frame system (SFS) external walls
• Timber frame wall constructions
• Masonry infill wall assemblies
• Internal lining of external walls
• New build and refurbishment projects

Advantages

• Non-combustible Euroclass A1 fire performance
• Suitable for buildings of any height
• Designed for steel frame (SFS), timber frame, and masonry infill constructions
• Friction-fit installation between studs for fast and efficient application
• Helps reduce thermal bridging within framed wall systems
• High thermal performance, λ = 0.035 W/mK
• Excellent acoustic absorption for improved sound insulation
• Vapour permeable open-fibre structure supports moisture management
• Lightweight and easy to handle on site
• Dimensionally stable with good tolerance for frame variations