Our 150mm PIR insulation boards combine strength and superior thermal performance with a polyisocyanurate (PIR) core and aluminium foil on both sides. These sturdy yet lightweight boards, which come in handy 8x4-foot sizes, are simple to cut and install on-site, saving time and labour expenses. These boards are ideal for both residential and commercial applications, offering excellent heat retention, as well as moisture and fire resistance.

These boards are ideal for insulating walls, roofs, and timber joists, but they are most frequently used for 150mm floor insulation. They can be used for a variety of tasks, including renovations and new construction, and to ensure you find the ideal solution for your project, we stock these PIR boards in thicknesses ranging from 25mm to 150mm.

We are proud to be the biggest independent builders' merchant in South London, providing all the tools, fixings, and building supplies you require in one location. All products are available for online ordering with quick delivery or in-store browsing at one of our branches. Our friendly staff is also available to offer advice and guidance.