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Tyvek® FireCurb Soft is a lightweight, advanced, fire-retardant membrane that selfextinguishes when ignited. It uses a halogen-free flameretardant additives to reduce the formation of droplets and smoke with minimal environmental impact. Tyvek® FireCurb Soft ® takes the airtight and watertight yet vapour-open breather membranes of Tyvek® membranes and adds flame retardancy properties that can significantly increase building safety. Suitable for use in all building types, from bungalows to high-rises. For the placing on the market of the product in the European Union/European Free Trade Association (EU/EFTA) (with the exception of Switzerland) Regulation (EU) No. 305/2011 (CPR) applies. The product needs a declaration of performance taking into consideration EN 13859-2: Flexible sheets for water proofing – Part 2: Underlays for walls and the CEmarking. For the application and use the respective national provisions apply.