50mm Knauf Rocksilk RS140 1.2m x 600mm

Knauf Insulation Rocksilk RS140 is a high-density rock mineral wool insulation slab designed for applications requiring maximum thermal performance, acoustic control, and fire safety. With a density of 140 kg/m³ and a thermal conductivity of 0.034 W/mK, RS140 offers robust insulation for residential, commercial, and specialist industrial uses. Manufactured with eco-friendly ECOSE® Technology, it achieves Euroclass A1 non-combustible classification and provides long-term dimensional stability and durability across floors, walls, partitions, and ceilings.

Benefits

• Exceptional Thermal Insulation
  
• Euroclass A1 Non-combustible
  
• Superior Acoustic Performance
  
• Will not slump or degrade over time, maintaining performance for the life of the building
  
• Versatile Applications
  
• Eco-Friendly Manufacturing

Good to know

• 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.
  
• Not a decorative surface
  
• Installation quality matters
  
• The product should be covered, off the ground and protected from the weather if kept on site