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The Onduline Ondutiss Air 100 Breathable Membrane is a versatile roofing and wall underlay designed for use in a variety of construction projects. This 50 x 1.5m membrane offers excellent breathability, allowing moisture vapour to escape while preventing water ingress, which helps protect insulation and structural elements. Lightweight yet durable, the Onduline Ondutiss Air 100 is easy to handle and install, making it suitable for both new builds and renovations. Its high tear resistance ensures long-lasting performance, providing reliable weather protection in roofing systems and walls.
