Dupont Tyvek Supro Breather Membrane 1 x 50m. BBA Approved

This durable Supro breather membrane felt underlay from DuPont Tyvek offers exceptional water resistance, vapour permeability, & airtightness. Made with laminated nonwoven polypropylene, it's ideal for all unsupported & supported roofs without needing ridge, tile, or soffit ventilation, saving you time & money. This Tyvek Supro underlay suits cold, hybrid, & warm roofs & is perfect for wall & floor installations, low-pitched metal roofs, & Scottish sarking board systems. It withstands high temperatures & prolonged UV exposure while providing superior moisture & air management for both residential & commercial buildings. Approved by IAB & BBA, it's suitable for all pitched roof structures. The roll size is 50m2, with a mass per unit area of 145gsm. Weighing 8kg per roll, it can withstand four months of UV exposure. It has a water vapour transmission of 0.015, a thickness of 450m, & is made from high-density polyethylene & polypropylene. Fully UKAS, IAB, & BBA approved.. DuPont Tyvek Supro Breather Membrane Felt Underlay Roll - 50m x 1m Polyethylene Polypropylene