Pack of 4

CavityTherm is an innovative built-in insulation for traditional walls that achieves passive level U-Values as low as 0.12 W/m2K with excellent thermal bridging detailing in cavities less than 150mm wide.

Part L 

100mm Areated Block, Celcon 3.6n or equivalent 

100mm Unilin Cavity Therm

Outerskin Clay brick 

Innerskin 12.5mm Standard Plasterboard on Dot&Dab

0.18 W/m2K will be achieved using the above method.

We recommend downloading and producing the Part L Calculation document to building control prior to installation, which is available from the downloaded section on the product page.