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DuPont develops breakthrough technology enabling the production of advanced flame retardant breather membranes for buildings
With a new patented technology offering a significant increase in building safety, potentially saving lives and reducing costly damage, DuPont has combined its world-class know-how in both materials science and chemistry, to develop an eco- friendly breakthrough solution. Suitable for roofs and walls and offering extremely high levels of flame retardancy (upto Class B) new DuPont™ Tyvek® FireCurb™ also enables delivery at a competitive cost.
This flame retardant performance adds to the multiple an renowned properties of DuPont™ Tyvek® breather mem- branes for buildings, such as long-term protection, effective vapour diffusion and a significant contribution to energy efficiency and interior comfort. The initial types of DuPont™ Tyvek® FireCurb™ featuring a higher flame retardant performance are available now and are suitable for applica- tions in high rise buildings for ventilated facades and for wall membranes in timber frame constructions. Additional membrane types for roofs and walls will be introduced in a second phase.
“Large scale fires have increased pressure on authorities and as a result, the construction industry has had to adapt to ever- tougher restrictions. Accordingly DuPont has now added a new dimension to the protection performance of DuPont™ Tyvek®. Having led the way in high performance protection from wind and water, we are committed now to also improving the reaction of wall and roofing membranes to fire. When flames meet Tyvek® FireCurb™, they stop, die down and go out. Tyvek® FireCurb™ limits 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,” says Karel Smolders, DuPont Building Innovations, EMEA Marketing Manager for Building Envelopes.
“Typically installed onto the external side of the insulation material or integrated into the wall structure system, DuPont™ Tyvek® FireCurb™ membranes represent an excellent solution to protection for such important and long term investments as buildings. Extremely versatile, they will be available in variations for ventilated facades, open rain screen cladding, timber frame and roofing constructions. In addition, DuPont™ Tyvek® FireCurb™ membranes will provide protection during the installation phase: sparks at building sites have frequently been the cause of fires and now this risk can be considerably reduced,” adds Patrick Mousel, DuPont Building Innovations, EMEA and AP Product Manager for Building Envelopes.
“The new DuPont™ Tyvek® FireCurb™ range of flexible building membranes uses a novel flame retardant technology to reduce the flammability of polymer based substrates. This technique does not involve the use of any halogens. Instead, it employs a phosphorous containing agent, to promote the formation of a ‘char’ layer at the surface when it is in contact with an ignition source. This thin layer of carbonized polymer is very resistant to burning and forms a barrier, slowing the release of flammable materials from the membrane into the flame. Starved of fuel, the flame spreads over the membrane more slowly or not at all. DuPont flame retardant flexible building membranes also produce less smoke when the membrane does burn; another advantage for people attempting to flee a burning building”, explains Carlo Weber, DuPont Building Innovations, EMEA Technical Marketing Specialist for Building Envelopes.
In this new product range, DuPont has combined a number of its proprietary technologies to produce a family of building membranes with a superior combination of advanced properties to meet the needs of the construction industry.
Fire
The initial types of DuPont™ Tyvek® FireCurb™ building breather membranes with flame retardant performance are available now and are suitable for applications in high rise buildings for ventilated facades and for wall membranes in timber frame constructions.
Reader Enquiry: 66
www.flameretardant.tyvek.com 01256 771222
DuPont™ Tyvek® FireCurb™ - new breather membranes combining flame retardant performance with long-term protection, effective vapour diffusion, greater energy efficiency and interior comfort.
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