Non-Combustible Soffit Linerboards

Ashwood House
Specifying soffit insulation? Choose a non-combustible solution

Enhanced product and service offering

  • Improved thermal conductivity: 0.034W/mK
  • Enhanced thickness range from 130-220mm
  • Improved product recipe for better rigidity during installation
  • New fixing method to reduce thermal bridging for improved U-values
  • New backing board slab (50 & 75mm) for increased thickness flexibility
  • Shorter lead times for standard thicknesses as part of an improved service offering
  • Product supplied on half height pallets for safe movement and transportation on site.
  • Now available with Rocksilk® Soffit Linerboard Fixings; colour matched black and off-white washers available, improving the look of the install.

View the Rocksilk® Soffit Linerboard application page

Our Rocksilk® Soffit Linerboard Products

  Rocksilk® Soffit Linerboard Extra* Rocksilk® Soffit Linerboard Standard Rocksilk® Soffit Linerboard Standard (Unfaced)
Thickness Range (mm): 130 / 160 /185 / 220 130 / 160 /185 / 220 50 / 75
Thermal Conductivity: 0.034 W/mK 0.034 W/mK 0.034 W/mK
Fire Classification: Euroclass A1 to BS EN 13501-1 Euroclass A1 to BS EN 13501-1 Euroclass A1 to BS EN 13501-1
Acoustic Performance: Excellent Excellent Excellent

**Rocksilk® Soffit Linerboard Extra is faced with a high impact-resistant cement particle board

Knauf Insulation Exposed Soffit insulation Rock Mineral Wool

Download our Rocksilk® Soffit Linerboard Product Range Datasheet

Rocksilk Soffit Linerboard

Download our Rocksilk® Soffit Linerboard Fixings Datasheet


Download our Rocksilk® Soffit Linerboard Installation Guide


 Ask your sales representative about Rocksilk® Soffit Linerboard Fixings

Contact our Technical Support Team