The Novia Polythene Vapour Control Layer 1200 Gauge is a high-performance polythene membrane designed to manage moisture levels within building structures. This vapour control layer, measuring 4m x 25m per roll, effectively reduces the risk of condensation forming within roofs, walls, and floors by acting as a reliable barrier against water vapour transmission. Suitable for use in domestic, commercial, and industrial applications, the Novia 1200 gauge vapour control layer is compatible with a wide range of insulation and construction methods. Its robust construction ensures long-lasting protection and helps maintain the integrity of your building envelope.