A two-in-one insulating breather membrane. Suitable for pitched roofs. R-Value of 1.62 m²K/W (equivalent to 75mm of Mineral Wool). Up to 76% reduction in heat loss (based on a single layer in a pitched roof). Unique overlapping method removes the risk of thermal bridging. Eliminates condensation by allowing moisture to pass through membrane. Flexible, lightweight and easy to install. Built-in double-sided, self-adhesive tape for ease of installation. Non-degradable for long-lasting thermal performance.