40mm Knauf Rocksilk RS45 Building Slab 1.2m x 600mm

Knauf Insulation Rocksilk RS45 is a lightweight yet effective rock mineral wool insulation slab designed for general thermal, acoustic, and fire protection applications. With a density of approximately 45 kg/m³, it provides reliable insulation performance while remaining easy to handle and install. Manufactured using ECOSE® Technology, RS45 achieves Euroclass A1 non-combustible classification and delivers consistent, long-term performance in walls, floors, roofs, and partitions across residential, commercial, and industrial buildings.

Benefits

• Effective Thermal Insulation
  
• Euroclass A1 Non-combustible
  
• Acoustic contribution
  
• Lightweight and easy to install
  
• Eco-Friendly Manufacturing
  
• Will not slump or degrade over time, maintaining performance for the life of the building

Good to know

• Multi-purpose insulation
  
• Available in multiple thicknesses
  
• Slabs should be closely butted together to ensure continuous insulation. Proper alignment and secure fixing help maximise thermal and acoustic performance.
  
• Best performance achieved when used with compatible fixings and construction detailing
  
• Not a decorative surface
  
• The product should be covered, off the ground and protected from the weather if kept on site