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DuPont develops breakthrough technology enabling the production of advanced flame retardant breather membranes for buildings

DuPont has combined its know-how in materials science and chemistry, to develop an eco-friendly patented technology for greater building safety. Suitable for roofs and walls and offering extremely high levels of flame retardancy (up to Class B) new DuPont™ Tyvek® FireCurb™ adds to the renowned properties of the breather membranes, such as long-term protection, effective vapour diffusion, plus greater energy efficiency and interior comfort.

When flames meet Tyvek® FireCurb™, they stop, die down and go out, limiting flame propagation between floors through the external envelope. While crucially offering higher safety to occupants and fire fighters, this new product line also potentially reduces the damage and cost caused by fires. Typically installed onto the external side of the insulation material or integrated into the wall structure system, Tyvek® FireCurb™ represents an excellent solution to protecting for such important and long-term investments as buildings.

Extremely versatile, the membranes will be available in variations for ventilated façades, open rain screen cladding, timber frame and roofing constructions and will also provide protection during the installation phase. The novel technology involves no halogens, instead a phosphorous containing agent forms a ‘char’ layer at the surface, slowing the release of flammable materials. Starved of fuel, the flame spreads over the membrane more slowly or not at all. There is also less smoke when the membrane does burn, another advantage for people attempting to flee a burning building.

To learn more about DuPont™ Tyvek® FireCurb™ please visit

Media contact DuPont™ Tyvek® / DuPont Building innovations:

- (UK and Ireland) Stephanie Bretherton at QuickStep PR, T: 020 7485 4832,

F: 020 7485 2846  E:  

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