Insulation Board

About

Insulation Boards Insulation boards are one of the most versatile and widely used insulation materials in modern construction. Suitable for roofs, walls, and floors in both new-build and renovation projects, rigid insulation boards deliver high thermal performance in a slim, easy-to-handle format — helping you meet building regulations and reduce energy consumption. Types of Insulation Board We stock a comprehensive range of rigid insulation board types to suit every application: PIR insulation boards — polyisocyanurate boards offering outstanding thermal resistance with minimal thickness, ideal for flat roofs, pitched roofs, walls, and floors Phenolic insulation boards — the highest performing rigid boards available, with the lowest lambda values for ultra-thin installations EPS (expanded polystyrene) — a cost-effective option for below-ground, floor, and cavity wall applications XPS (extruded polystyrene) — high compressive strength boards for inverted roofs and below-slab use Choosing the Right Insulation Board The right board depends on your application, required U-value, available build-up depth, and budget. PIR and phenolic boards offer the best thermal performance per millimetre, while EPS and XPS are better suited to high-load or below-ground situations. All products on this page include full technical specifications to help you choose. Trade Prices & Fast UK Delivery We supply insulation boards to tradespeople and self-builders across the UK, with next-day delivery available on qualifying orders. Browse our full range below or contact our team for project-specific advice.