Rockwool RW3 rigid slab insulation delivers excellent thermal performance with a lambda value of 0.035 W/mK, making it ideal for timber frame construction and structural applications. This 1200 x 600mm slab at 30mm thickness provides superior fire resistance and dimensional stability, with a non-combustible A1 fire rating.
Key Features
- Lambda value: 0.035 W/mK for optimised energy performance
- Non-combustible A1 fire rating
- Rigid slab format for structural support and easy installation
- Dimensions: 1200 x 600 x 30mm (pack of 15 slabs)
- Excellent moisture resistance with inherent vapour permeability