Knauf Insulation Flexible Slab 1200x600x50mm

RocksilkĀ® Flexible Slab is a Rock Mineral Wool slab, designed for use in multiple thermal and acoustic applications as well as the fire protection of a loft conversion floor. It is non-combustible with the best possible Euroclass A1 reaction to fire classification and is manufactured using Knauf Insulation's unique bio-based binder, ECOSEĀ® Technology.

  • Multi-purpose product which can be used to insulate a wide range of applications on site.
  • Flexible on all four sides for quick and simple installation.
  • Existing ceilings can be retained on a loft upgrade whilst meeting building regulations.

Product code : 05H1206050


Key Performance Criteria

  • Thermal Resistance : 1.35m²K/W
  • Thermal Conductivity : 0.037W/mK
  • Euroclass Fire Classification : A1


  • Pitched Roofs - Rafter Level
  • Timber Frame Walls
  • Light Steel Frame Walls
  • Internal Walls
  • Separating Floors - Timber
  • Suspended Timber Ground Floors