100mm PIR Insulation 8’X4′

Combining a polyisocyanurate (PIR) core with aluminium foil facings on both sides, our high-performance 100mm PIR insulation is available in 8x4ft boards for maximum flexibility. Lightweight yet sturdy, these boards are quick and easy to cut and install on-site, helping to reduce labour time and costs. Known for their superior thermal properties, moisture resistance, and fire resistance, our PIR insulation (100mm) is a suitable choice for both commercial and residential projects.

Available to purchase in-store or online with fast delivery, our 100mm PIR insulation board​s can be used for various applications. While 100mm floor insulation is the most popular use, they are also a reliable option for roofs, walls, and timber joists. If you require a different thickness, we also stock boards ranging from 25mm to 120mm, helping you to find the right fit for your project.

As South London’s largest independent builders' merchant, we supply all of your materials, fixings, and tools under one roof. Our experienced team is available to answer any questions, helping you get started on your next project without delay.