25mm Insulation Board 2400mm x 1200mm

25mm Foil-Faced PIR Thermal Bridging Board – 2400 × 1200mm

This high-performance foil-faced PIR insulation board is designed to improve thermal continuity in floors, walls, and roofs, particularly at junctions where heat loss commonly occurs.

Manufactured as part of a dedicated thermal bridging solution range, the 25mm thickness makes it ideal for reveals, perimeter edges, and shallow cavities, helping you upgrade insulation performance without increasing structural build-up.

Why Choose This PIR Board

Excellent Thermal Efficiency – λ 0.022 W/m·K
Delivers strong insulation performance while keeping build-ups slim.

Foil Composite Facings
Reflect radiant heat and help enhance performance across sealed air gaps.

Designed for Junction & Edge Detailing
Improves insulation continuity at areas prone to cold bridging and condensation.

Rigid & Easy to Handle
Lightweight boards that cut cleanly and install quickly on site.

Moisture Resistant Core
Closed-cell structure maintains long-term thermal integrity.

Environmentally Responsible
Manufactured with zero ODP and low GWP blowing agents.

Third-Party Certified Performance
Suitable for use across roofs, walls, and floors.

Common Uses

Window and door reveals

Lintel and junction detailing

Perimeter floor insulation

Timber frame and masonry wall upgrades

Roof perimeter and rafter line improvements

Ideal wherever insulation layers are interrupted and extra thermal protection is required.

Installation Tips

Cut accurately for a snug fit

Butt joints tightly to minimise heat loss paths

Seal or tape joints where specified

Keep boards dry and stored flat before use

Technical Overview

Board Size: 2400 × 1200mm

Thickness: 25mm

Thermal Conductivity: 0.022 W/m·K

Compressive Strength: ≥140 kPa

Reaction to Fire: Euroclass E