The VCL 250 Air and Vapour Control Layer is a high-performance membrane designed to effectively manage air and vapour transmission in building structures. This 2m x 50m (100m²) roll provides an efficient solution for enhancing airtightness and protecting insulation from moisture ingress. Suitable for use in roofs, walls, and floors, the VCL 250 ensures long-lasting durability and ease of installation. Its robust polyethylene construction helps improve energy efficiency by reducing heat loss, making it an essential component for new builds or refurbishment projects requiring reliable air and vapour control.