Permavent UK are a Dorset‑based manufacturer and wholesaler of roofing and construction membranes. They supply breather membranes, vapour‑permeable membranes, walling membranes, fire‑rated membranes, and low‑pitch roofing systems.
Permavent BLACK is a vapour-permeable roofing underlay suitable for use in both roof and wall applications. It is designed to form an airtight layer within the building envelope.
