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Description DuPont™ Tyvek® Housewrap is an ideal breathable membrane solution for timber frame wall systems and is also suitable for steel frame and concrete wall constructions. Engineered from high-density polyethylene fibres, it delivers durable, long-term protection against the elements. This lightweight, windtight, and water-resistant membrane is designed for surface application directly on sheathing ply, OSB, insulation, or blockwork, making it versatile for new builds, refurbishments, or extensions. Features High Water Vapor Permeability Lightweight and Flexible Design Exposed Durability up to 4 Months CE Marked and Fully Certified (BBA, IAB, UKAS)