TYVHW10014 DuPont Tyvek Housewrap is the ideal breathable membrane for timber frame wall systems, and is also suitable for steel frame and concrete wall construction. It is surface-applied, and should be fixed directly to the sheathing ply/OSB, insulation or blockwork. Tyvek Housewrap is made of high density polyethylene fibres for long-term protection against the elements. This durable, lightweight breathable membrane is windtight and water resistant and designed for use in new build, refurbishment or extension projects. Benefits: – Highly permeable to water vapour – can be fixed directly to insulation. – Enhances the airtightness of the construction – Lightweight, flexible and easy to install – Can be left uncovered for up to 4 months while retaining full performance – Long-term reliability – CE marked – Fully BBA, IAB and UKAS approved.