Rigid PIR Insulation 1200 x 2400 x 25mm

Key features

• Thermal conductivity 0.022 W/mK for consistent insulation performance
• Compressive strength 175 kPa supports structural loads in walls, floors and roofs
• Lightweight rigid foam board for straightforward on-site handling and installation
• 1200 x 2400mm sheet size balances coverage with practical portability
• 25mm thickness suits space-limited applications and layered insulation strategies
• BBA certified for specification confidence and building control compliance
• Suitable for new build, refurbishment and retrofit projects
• Multiple leading brands stocked: Ecotherm, IKO, Mannok, Recticel, Unilin
• Closed-cell foam construction resists moisture absorption
• Compatible with standard fixing and adhesive methods

Specifications

Board dimensions

1200 x 2400mm

Thickness

25mm

Thermal conductivity

0.022 W/mK

Compressive strength

175 kPa

Material

Rigid polyisocyanurate (PIR) foam

Cell structure

Closed-cell

Certification

BBA certified

Available brands

Ecotherm, IKO, Mannok, Recticel, Unilin

Sheet area

2.88 m²

Density

approximately 30–35 kg/m³

Fire performance

Euroclass B-s1, d0 (typical)

Moisture resistance

Low water absorption

Common applications

• Cavity wall insulation in new build and refurbishment projects
• Pitched roof insulation between rafters or above purlins
• Flat roof insulation in warm-roof and inverted-roof systems
• Suspended floor insulation between joists
• Solid wall insulation as part of external or internal retrofit
• Basement and below-ground insulation applications
• Layered insulation strategies where multiple boards are combined
• Thermal bridging reduction in timber-frame construction
• Loft conversion insulation in space-constrained applications
• Commercial and industrial building envelope insulation
• Plant room and service duct insulation
• Partition wall thermal performance enhancement

Search keywords

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Description

Rigid PIR insulation board 1200 x 2400 x 25mm is a lightweight closed-cell foam product for new build, refurbishment and retrofit projects across walls, floors and roofs. The board format allows straightforward handling and installation in trade and serious DIY workflows. We stock multiple brands including Ecotherm, IKO, Mannok, Recticel and Unilin; we will dispatch whichever brand is currently available.

The product delivers thermal conductivity of 0.022 W/mK with compressive strength rated at 175 kPa, supporting structural load requirements in typical building applications. BBA certification provides specification confidence for architects, builders and merchants specifying insulation performance. At 25mm thickness, this board suits applications where space is limited or where layered insulation strategies are planned. The 1200 x 2400mm sheet size balances coverage with practical handling on site.