Superfoil SF40BB is a high-performance, 75mm thick insulation material, designed to deliver robust and effective thermal performance in various building applications. Measuring 1.5m x 10m, this versatile insulation product is made from multiple layers of radiant reflective foil and thermo foam separation layers. The Superfoil SF40BB is easy to install and capable of delivering excellent energy savings by reducing heat loss during cold months and heat gain during hot months. Its superior construction ensures long-lasting durability while ensuring compliance with UK building regulations.