Tyvek Supro Breather Membrane Felt Underlay 1m x 50m (50m2/Roll)

Tyvek Supro Breather Membrane Felt Underlay is a vapour-permeable pitched roof underlay designed to deliver dependable resistance against wind-driven rain and external moisture ingress.Manufactured from high-performance composite layers, it maintains tensile strength and dimensional stability during installation and long-term service.The membrane supports controlled vapour movement from the loft space while maintaining a water-resistant external barrier suitable for ventilated and non-ventilated cold and warm roof constructions.Its robust construction enables handling, cutting, and fixing without excessive tearing, aiding reliable installation across varying roof geometries.It is supplied in a 1m × 50m roll providing 50m² of coverage.