Steico Flex Woodfibre Insulation 140mm is a high-performance, natural insulation material designed for both thermal and acoustic efficiency in walls, roofs, and floors. Manufactured from sustainable wood fibres, it is vapour-permeable, allowing buildings to breathe while providing excellent insulation properties. The 2.737m² pack makes it suitable for various domestic and commercial projects. Steico Flex is easy to handle and install, fitting snugly between rafters and studs without slumping over time. This wood fibre insulation offers an environmentally responsible choice for energy-efficient building.