Kooltherm K8 Plus Cavity Wall Insulation Board

K8 Plus

Advanced partial fill cavity wall insulation which allows a reduced minimum cavity width of 20mm

  • Thermal conductivities as low as 0.020 W/mK
  • 20mm clear cavity is maintained – resists moisture penetration
  • Engineered jointing to resist water ingress
  • 0.13 W/m²K U-value achieved in standard 150mm cavity 
  • Achieves Euroclass B-s2,d0

Product Brochure

Our product brochures include U-value tables, handling advice and installation guidance.

Kooltherm K8 Plus Cavity Board Brochure January 2021

Technical Information

Thermal conductivity (insulant thickness) 0.020 W/m.K ( ≥ 45 mm)
Euroclass B-s2,d0
Compressive strength at 10% compression 100 kPa
Facings Low emissivity durable scrim reinforced composite foil facing on both sides  
Core Premium performance fibre-free rigid thermoset phenolic insulant manufactured with a blowing agent that has zero Ozone Depletion Potential (ODP) and low Global Warming Potential (GWP)
Board size 1.2 x 0.45 m
The current declaration of performance is available to download below. Please email technical@kingspaninsulation.ie to request a previous declaration of performance.

Kooltherm K8 Plus DoP 003 March 2021

Kooltherm K8 Plus Enquiry

Do you have any questions about our new K8 Plus Cavity Board?

I consent to the terms of the Website Privacy Notice 

Do you need help or advice on a project?

Contact our experienced technical services department today.

Get in touch