The 50mm Rigid PIR Insulation Board (2400 x 1200mm) is a high-performance, premium thermal insulation panel engineered to deliver superior energy efficiency for walls, floors, and roof systems. Measuring 2400mm in length by 1200mm in width with a substantial 50mm thickness, this board provides double the thermal resistance of thinner alternatives, making it an ideal choice for meeting modern building regulations and minimizing heat loss in domestic and commercial construction.
 
Manufactured from a high-density, closed-cell polyisocyanurate (PIR) foam core and faced on both sides with a low-emissivity textured aluminum foil, this panel achieves an excellent thermal conductivity rating. The foil facings act as a built-in vapor control layer when joints are properly taped, while the rigid core resists moisture absorption, rotting, and compression, ensuring long-term structural and thermal stability.
 
Despite its enhanced thickness, the board remains lightweight and easy to handle on site. It can be effortlessly cut using a fine-tooth saw or utility knife to achieve a tight, friction-fit between timber joists, rafters, or stud frames. Whether you are insulating a warm pitched roof, upgrading a ground-floor slab, or lining a timber-frame garden room, this trade-quality 50mm PIR board delivers exceptional thermal performance and durability.
 
Available in: 2400 x 1200mm, 25mm to 150mm thicknesses. Others available on request