Description
SOPREMA SOPRATHERM PIR insulation boards are a high-performance rigid insulation solution suitable for roofs, walls and floors in both domestic and commercial construction. Previously supplied under the well-known Celotex brand, these insulation boards are now manufactured by Soprema under the SOPRATHERM name, continuing the same trusted PIR insulation technology.
Manufactured using polyisocyanurate (PIR) foam with excellent thermal conductivity, SOPRATHERM boards deliver high levels of insulation while maintaining a slim profile—helping to meet modern Building Regulations without sacrificing internal space. This listing covers all available thicknesses to suit a wide range of applications.
Brand Name Update – Important Information
Celotex insulation has been rebranded following acquisition by SOPREMA. SOPRATHERM boards are the direct replacement, offering equivalent performance, quality and intended use. You may still see Celotex referenced on older specifications, drawings or projects.
Key Benefits
• High thermal performance with low lambda values
• Suitable for roof, wall and floor insulation
• Rigid PIR core for strength and durability
• Helps achieve Part L and Building Regulation compliance
• Direct replacement for Celotex PIR insulation boards
Specifications
• Product Range: SOPRATHERM
• Manufacturer: SOPREMA
• Material: PIR (Polyisocyanurate) insulation
• Thicknesses: Multiple thickness options available
• Facing: Foil-faced (varies by specification)
Applications
• Pitched and flat roofing
• Internal and external wall insulation
• Solid and suspended floors
• New build and refurbishment projects