Knauf Rocksilk RS45 is a semi-rigid stone wool insulation slab delivering a thermal conductivity (lambda) of 0.045 W/mK, ideal for timber frame construction and cavity wall applications. The 60mm thickness boards measure 600x1200mm with 8 units per pack, providing efficient thermal performance and excellent fire resistance ratings suitable for demanding building envelope specifications.
Key Features
- Thermal conductivity: ? = 0.045 W/mK for optimised energy performance
- Non-combustible mineral wool with superior fire rating classification
- Semi-rigid slab format for secure installation in timber frame cavities
- Vapour permeable composition supporting moisture management in wall assemblies
- Pack quantity: 8 boards per unit (600x1200mm each) for efficient coverage