FlameOut Block Flame Retardant VCL FR Class B - 2m x 50m (100m2) is a high-performance vapour control layer designed to enhance fire safety in construction projects. This flame retardant membrane effectively limits the passage of water vapour, helping prevent condensation and moisture build-up within walls and roofs. Certified to Class B fire standards, it offers reliable protection in both residential and commercial buildings. The robust 2-metre width and convenient 50-metre roll format allow for efficient installation over large areas, ensuring optimal coverage with minimal joins. Suitable for a wide range of building applications, this VCL provides peace of mind where enhanced fire resistance is required.