DuPont is bringing building breather membranes to next level of protection, with flame retardant Tyvek FireCurb, enabling up to Euroclass B (EN13501-1). When flames meet Tyvek FireCurb, they literally stop, die down and go out. The new patented technology adds flame retardancy to the well-known properties of Tyvek for even more comprehensive protection of walls and roofs. DuPont Tyvek FireCurb Housewrap is a lightweight, advanced, fire retardant membrane that self-extinguishes when ignited. It uses a halogen-free flame retardant coating to reduce the formation of droplets and smoke with minimal environmental impact. Tyvek FireCurbTM Housewrap takes the airtight and watertight yet vapour-open breather membranes of Tyvek membranes and adds flame retardancy properties that can significantly increase building safety. A flame retardant membrane can help slow or prevent the spread of flames, improving evacuation time for occupants and also helping to increase the fire rating of wall elements. Suitable for use in all building types, from bungalows to high-rises, Tyvek FireCurbTM Housewrap offers an outstanding long-term protection solution you can trust. Properties Length: 50m. Width: 1.5m. Roll size: 75m2. Roll weight: 5.5kg. Mass per unit area: 68 gsm. UV exposure: 4 months. Water vapour transmission: 0.01. Product thickness: 175 m. Composition: high density polyethylene. Certification: BBA certified. CE Marking. Features Self-extinguishes when ignited. Forms no droplets when fire starts and limits the propagation of flames. Reduces smoke. Up to Euroclass B (free-hanging) classification, which nearly no other membrane can reach. Made with halogen-free flame retardant coating for limited impact on the environment. Includes the same product benefits as the existing Tyvek product range with the addition of flame retardancy. Low flammability with very limited contribution to fire. Long-term investment protection. Greater safety during and after installation. CE marking.