Polypropylene underlay membrane NON-BREATHABLE

waterproof

Non-breathable High tensile and tear strength Clean and easy to handle Durable UV resistant BBA approved Lightweight alternative to traditional IF Integrated tape for sealing laps Guidance lines for minimum laps Description Marley Universal non-breathable underlay is a lightweight (116g/m²), high-performance membrane for pitched roofs. Supplied in 1m x 45cm rolls with integrated tape for sealing laps, the underlay is fully compliant with BS 5534 and suitable for all UK wind zones 1 - 5. Marley underlays are manufactured using the latest materials and processes, and each incorporates a number of useful features that assist in ensuring installation that is not only correct, but also compliant with the latest British Standards. Function & Compatibility Universal non-breathable underlay is designed to integrate seamlessly within a full Marley roof system and is suitable for roofs with traditional ventilation products or ventilated batten cavities.