DriStud EcoDri FR is a fire retardant, vapour permeable, self-supporting synthetic roof underlay made of 80% recycled GRS certified non-woven materials. It can also used as a wall underlay.

Once installed, this underlay serves as a secondary protective layer for roof framing, enhancing weather resistance. Additionally, it provides an air-impermeable barrier behind the roof cladding. These layers play a crucial role in the internal moisture management systems for roofs and roof cavities.