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The RECTICEL EUROTHANE® GP 25 mm x 1200 x 2400 PIR Insulation Board is a high-performance rigid insulation solution designed for use in walls, floors and roofs where space is limited but effective thermal performance is required. With a low lambda value of 0.022 W/mK, it helps reduce heat loss and improve overall energy efficiency, supporting compliance with Building Regulations Part L.
Manufactured from rigid polyisocyanurate (PIR) foam, EUROTHANE® GP delivers excellent thermal insulation in a slim profile, making it ideal for refurbishment and overlay applications. The 25 mm thickness provides effective insulation without significantly increasing build-up, while the large 1200 x 2400 mm board size allows fast installation with fewer joints, improving thermal continuity. The product is 100% PEFC certified (CU-PEFC-867959), supporting responsible and sustainable construction practices.
High-performance PIR insulation board
Lambda value: 0.022 W/mK
Slim 25 mm thickness for space-saving insulation
Suitable for walls, floors and roofs
Rigid board for dimensional stability and durability
Large 1200 x 2400 mm format reduces joints
100% PEFC certified (CU-PEFC-867959)
Wall insulation overlays and lining systems
Floor insulation build-ups where height is limited
Roof insulation upgrades and detailing
New-build and refurbishment projects
Residential and commercial construction
Excellent thermal performance in minimal thickness
Supports Part L energy efficiency requirements
Helps reduce thermal bridging when correctly installed
Easy to cut and install with standard tools
Rigid PIR core ensures long-term insulation performance
Product Type: PIR Insulation Board
Product Range: EUROTHANE® GP
Manufacturer: Recticel Insulation
Material: Polyisocyanurate (PIR)
Thickness: 25 mm
Thermal Conductivity (Lambda): 0.022 W/mK
Board Size: 1200 x 2400 mm
Certification: 100% PEFC Certified (CU-PEFC-867959)
Application: Walls, Floors and Roofs
The RECTICEL EUROTHANE® GP 25 mm PIR Insulation Board offers a practical and efficient solution for improving thermal performance where space is restricted. Its 0.022 W/mK lambda value, large board size and PEFC certification make it a reliable choice for sustainable, Part L-compliant insulation in modern construction.