Dual purpose, 2-in-1 insulating and vapour control membrane|High thermal resistance of up to 2.84 m2 K/W, equivalent to 125mm mineral fibre insulation|Reduces energy usage, saving money|Effective radiant barrier warmer in the winter and cooler in the summer|Fast and easy to install|Unique kimble design that holds layers in place to avoid separation when cutting|Thermally tested to industry standards|Zero fibres removes the need for PPE|Unique overlapping method totally removes the risk of thermal bridging|Made in Britain