IKO Black Sheathing Felt is normally used as a separating membrane in Mastic Asphalt roofing systems. It is loose laid onto the roof deck or thermal insulation, with minimum 50mm side and end laps, prior to the application of the hot Mastic Asphalt.
It comprises of a batt of recycled natural jute fibre, which is impregnated with bitumen. IKO Black Sheathing Felt is also used in certain light duty Mastic Asphalt flooring applications, for example, where the base is timber.
