The 120mm Recticel Eurothane GP board is a high-resistance option used in pitched and flat roofs, between and below timber joists, concrete slab floors, and framed or plasterboard-lined walls. At a thermal conductivity of 0.022 W/mK the 120mm thickness delivers a thermal resistance of approximately 5.45 m²K/W, helping meet stricter U-value requirements where the build-up depth allows a thicker single board. The low-emissivity foil facing doubles as a vapour control layer, while the square edge profile keeps board joints tight to limit thermal bridging. The board is dimensionally stable across temperature, humidity, moisture and UV exposure, and is suitable for commercial and domestic work on new build and refurbishment. Bulk ordering keeps material costs down on larger jobs.

Benefits

• Thermal conductivity of 0.022 W/mK
• Thermal resistance of approximately 5.45 m²K/W at 120mm
• Moisture resistant; will not deteriorate when exposed to moisture
• Class 1 surface spread of flame to BS 476 (part 7)
• Compatible with underfloor heating
• Low-emissivity foil facing acts as a vapour control layer
• Square edge profile to limit thermal bridging at joints
• Cuts on site with a sharp knife or insulation saw
• Suitable for commercial and domestic buildings
• Manufactured with zero ODP and low GWP blowing agents
• Bulk ordering reduces material cost on larger contracts

Good to know

• PIR is moisture resistant but not waterproof. Store in a dry environment and out of direct sunlight.
• Board size is 2.4m x 1.2m, covering 2.88m² per board
• Bespoke cutting is available, find out more here
• For pitched roof installation, see the Recticel specification guide
• For floor types such as solid floor and under screed, see the Recticel floor insulation guide