Rockwool RW5 Slab is a rigid stone wool insulation board designed for cavity wall and cavity closure applications in timber frame construction. With a thermal conductivity (lambda) of 0.035 W/mK, it delivers consistent energy performance while maintaining dimensional stability. The product provides excellent fire performance classification and moisture management properties suitable for demanding building envelope specifications.
Key Features
- Thermal conductivity (?): 0.035 W/mK for optimised energy efficiency
- Non-combustible A1 fire rating with proven fire barrier performance
- High compressive strength for secure cavity installation without slumping
- Vapour permeable design enabling effective moisture control and breathability
- 1200mm x 600mm x 100mm board format for efficient installation and minimal waste