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Tyvek Supro Breather Membrane is a durable, flexible water-resistant underlay for pitched roofs. Manufactured by Tyvek, this 1m x 50m roll is designed to allow trapped moisture vapour to escape from the roof structure, helping prevent condensation and mould growth. It's suitable for warm and cold roofing systems in pitched tiled and slated roofs and also helps reduce heat loss, improving overall thermal efficiency. Tyvek Supro is made from high-density polyethylene (HDPE) with reinforced polypropylene layers for tear resistance. It's also UV resistant, able to remain exposed to UV and weather for up to 4 months during construction.
| Type | Breather Membrane |
| Length | 50m |
| Width | 1m |
| Material Composition | High-density polyethylene (HDPE) and polypropylene fibres |
| Reaction to fire | Class E |
| Water tightness | Class W1 |