Knauf Insulation Rocksilk EWI Slab

Rocksilk EWI Slab is a high strength, Rock Mineral Wool slab with a water repellent additive specifically designed for use in External Wall Insulation systems. Slabs can be either adhered and mechanically fixed or just mechanically fixed to the substrate, then overlaid with a mesh and render system to the designers/system suppliers specification. The fire resistance of the product removes the need for fire barriers, giving simple, quick and economical insulation for External Wall Insulation systems.

  • Excellent thermal performance
  • Non-combustible Euroclass A1 Reaction to Fire Classification 
  • Excellent sound absorption characteristics 
  • Provides additional acoustic performance to the external wall
  • Breathable, allowing moisture vapour to pass through the construction removing the risk of condensation
  • Suitable for use with both silicone and mineral render systems
  • Easy to cut with a large bladed knife or serrated saw
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Product code : 17TMFL