Cavity Wall Batts

Thickness: 25mm – 150mm
Length: 1.2m
Width: 0.45m
Area: 0.54m2
Thermal conductivity (lambda / λ value): 0.022W/mK
Ecotherm product name: Eco-Cavity

Cavity wall batts feature a fibre free rigid foam polyisocyanurate (PIR) insulation core faced with an aluminium composite sheet on both sides.

The batts are ideal for using as partial cavity wall insulation in traditionally built masonry walls. They are tough, light, easy to handle and fit and are sized to coordinate with brick and block dimensions.

Where can foil insulation board be used?


Foil insultation board is perfect for:

  • Ideal for Stud Walls
  • Normal Walls
  • Pitched roofs/Cold flat roofs
  • Room-in-the-roof applications
  • Both new build and renovations