Kerabit Super is a diffusion-open, product-classified (AKV and AKD) waterproof underlay for roofs with an inclination of 1:3 or steeper. It can be used both as a wind barrier and an underlay. Mesh-reinforced Super is step-resistant, and it has an effective adhesive edge. Kerabit Super is installed longitudinally.
As the product is diffusion-open, a ventilation space is not necessarily required in the roof’s structure between the thermal insulation and the underlay, and, consequentially, this space can be used for additional insulation. As there is no ventilation space, heat loss is also reduced, rendering the overall structure more energy-efficient.