Marley Universal Vapour Permeable Underlay 50M x 1M (Red)

Marley Universal Vapour Underlay is a high-performance, breathable roof membrane for use in a range of pitched roof constructions. Complete with an integrated tape system, this underlay provides and effective wind barrier with unrestricted usage across all UK wind zones (BS 5534). Manufactured using a multi-layer bonding process of polypropylene laminates, the underlay is an ultra-strong, durable, and easy-to-install under-tile layer that is suitable for warm or cold roof applications.

• Integrated tape system for sealing underlay laps
• Provides a vapour-permeable underlay system with superb wind-uplift resistance
• Unrestricted usage Zones 1-5, and fully compliant with BS 5534.
• No need to increase laps to coincide with tile batten courses, minimising cost
• No need to use an additional ‘fly’ batten to secure laps
• Printed guidance lines
• Provides a visual reference to ensure sufficient lap to the British Standard
• Ensures that the underlay is laid consistently and straight