CavityTherm 360


Full Fill Cavity Walls
Unilin Insulation Cavitytherm Insulation Board

BIO-enhanced PIR Insulation. An engineered system providing added resilience against increases in wind driven rain resulting from climate change.

CavityTherm 360

CavityTherm 360 is a bio-enhanced high performance composite board of enhanced PIR with a Lambda value as low as 0.020 W/mK for full fill cavity wall applications.

CavityTherm 360 offers all of the unique benefits of our full fill built-in wall insulation system along with pioneering environmentally sensitive features that meet the RIAI 2030 Climate Challenge. When built into a traditional 110-150mm cavity using standard foundation widths, building skills and local materials CavityTherm 360 achieves U-Values down to 0.13 W/m2K. An environmentally conscious solution to low energy design, that results in traditional homes that meet the 2030 Climate Challenge targets.

  • Bio-enhanced PIR insulation

  • Enhanced performance as low as 0.020 W/mK

  • Halogen free

  • Bio-degradable packaging

  • Moisture directed to outer surface

  • Fully engineered jointing

  • Fully recyclable HIPs facer provides wind-driven rain protection

  • Wide range of system compatible accessories that build to a system

  • Reduced packaging materials

Unilin Insulation Cavitytherm Insulation Board

The built-in full fill cavity wall insulation shall be ECO360 CavityTherm ECO/CT manufactured to EN 13165 by Unilin Insulation, including corner boards and ancillary detail components, comprising a rigid Polyisocyanurate (PIR) core between low emissivity foil facings with engineered HIPS outer skin. The ECO360 CavityTherm _ _ mm with a declared Lambda value of 0.020 W/mK to achieve a U-Value of _ _ _W/m2 K for the wall element. To be installed in accordance with instructions issued by Unilin Insulation

Refer to NBS clause F30 150, F30 12.


The resistance value of any thickness of Unilin insulation can be ascertained by simply dividing the thickness of the material (in metres) by its agrément declared lambda value, for example: Lambda 0.020 W/mK and thickness 105mm -> 0.105/ 0.020 -> R-Value = 5.25. In accordance with EN 13165, R-Values should be rounded down to the nearest 0.05 (m2K/W).


Unilin offers preformed Corner Panels as part of the ECO360 range. We also offer a range of accessories that are compatible for use with CavityTherm 360.

Preformed corner panels

Integral rain barrier

Jointing Strip

Service void panels

Hockey stick insulation

Cavity tray channel

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