Universal Vapour Permeable underlay is a 170g/m² membrane which comes packed full of features and benefits designed to promote consistent installation to the British Standard:
Marley Universal Vapour Permeable 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.
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