DuPont Tyvek

A complete membrane offering for fire safety in the building envelope:

Building Products Index Ltd July 28, 2020 Membranes 1 Comment

View the DuPont™ Tyvek® entry on BPindex

New DuPont™ AirGuard® A2 FR joins DuPont™ Tyvek® FireCurb® Housewrap to create an advanced solution that exceeds regulations

Safety is a core value at DuPont. Innovative solutions and materials specifically addressing fire safety have been developed by DuPont for over 50 years. In the construction industry, DuPont™ Tyvek® is a pioneer when it comes to fire safety in building membranes, introducing its Tyvek® FireCurb® Housewrap breather membrane in 2013.

As building regulations rapidly and appropriately catch up since the Grenfell tragedy in London – and as most fires begin inside buildings – DuPont has also been working hard to develop an airtight and vapour control layer for the internal walls and ceilings in its high performance AirGuard® range to offer similarly advanced, non-toxic, fire-resistance with proven efficacy.

Now architects, developers, planners and building control officers can have confidence in a complete membrane and tape solution for durably enhanced fire safety, in both the exterior and the interior fabric of a building. While Tyvek® FireCurb® Housewrap forms a weather-protective, vapour-open lining behind ventilated facades, new DuPont™ AirGuard® A2 FR AVCL brings benefits for energy-saving, moisture management, air quality and climatic comfort to the building interior, together with its added fire-retardant function.

Tyvek® FireCurb® Housewrap utilises DuPont patented self-extinguishing technology, as when flames meet the membrane they stop, die down and then go out. The halogen-free coating limits the propagation of flames and the formation of droplets, reduces smoke and makes a very limited contribution to any fire.

DuPont™ AirGuard® A2 FR airtight and vapour control layer (AVCL) is truly fire-retardant and has been independently classified with a Class A2 rating. Along with Tyvek® 2060M Metallised Tape, DuPont now offers a complete membrane and sealing tape system with certified A2 classification. These products provide exceptional fire safety that even surpasses existing regulations.

However, as with all systems – be they intended for fire safety or airtightness – correct installation and the sealing of all laps, junctions and penetrations is crucial. In addition to airtightness and vapour control, properly taped systems also help to reduce smoke penetration, which tends to be responsible for more casualties than the flames themselves.

In order to give assurance that such a complete system is ‘fire-safe’, a full test that includes the sealing tape has recently been conducted to EN 13501 at the Prufinstitut Hoch (Classification Report, KB-Hoch-200148, 4th March 2020.) DuPont also offers clear and comprehensive technical guidance and support to ensure its products perform as designed.

New DuPont™ AirGuard® A2 FR fire-retardant air and vapour control layer (AVCL) is designed for use within the internal wall system behind finishes such as dry-lining and is compatible with a variety of materials from mineral wool to gypsum plasterboard and cement particleboard – and is suitable for all building types, sizes and locations.

As well as offering its fire retardant properties, it maintains all the advantages inherent in the AirGuard® Reflective range in terms of thermal performance, with its low emissivity surface, 100% airtightness and W1 water tightness, together with high vapour resistance to limit interstitial condensation – and furthermore it is suitable for areas of high humidity.

Whether for application in a bungalow, a high-rise structure or a key public building, these robust membranes and their associated accessories offer not only reliable performance, easy installation and full regulatory compliance, but a vital investment in greater safety – both during and after installation. In achieving a combination of improved energy-efficiency and the protection of both people and property, the products can deliver long term peace of mind for building designers, constructors, owners and occupants alike.

About Tyvek® FireCurb® Housewrap and DuPont™ AirGuard® A2 FR

These ground-breaking versions of the renowned DuPont building membrane range have additional and superior flame retardant performance. Tyvek® FireCurb® Housewrap uses innovative technology to reduce the flammability of polymer based substrates to decrease the risk of fire spreading through the external and internal envelope. Rather than using halogens, the technology employs a phosphorous-containing agent that forms a ‘char’ layer at the surface when it is in contact with an ignition source. This thin layer of carbonized polymer is highly flame retardant and forms a barrier, slowing the release of flammable materials. Starved of fuel, the flame spreads over the membrane more slowly or not at all and if the membrane ultimately caught fire, it produces less smoke, another vital advantage for safety. Rigorously tested, Tyvek® FireCurb® has a fire rating of class B-s1,d0 according to EN13501-1. DuPont™ AirGuard® A2 FR combines a lacquered low emissivity foil, laminated to a glass fibre mesh and is classified for reaction to fire as A2-s1,d0 to EN 13501-1: 2007+A1:2009. Full system classification: DuPont™ AirGuard® A2 FR AVCL plus Tyvek® 2060M tape.

The new fire retardant DuPont™ AirGuard® A2 FR AVCL

About DuPont™ Tyvek® & DuPont Building Membranes and Products: DuPont™ Tyvek® advanced building membranes are unique in the market due to their high-quality single layer construction. Tyvek® breather membranes, in all their specialised versions, are naturally vapour open but also durably wind and water-tight. Lightweight yet robust, it is easy to install and offers long-term, proven reliability. Designed to protect the building envelope against the effects of weather and moisture, this family of membranes also offers optimal air-tightness and water holdout and can help to improve the thermal performance, energy-efficiency, interior climatic stability, and in the case of Tyvek® FireCurb® and DuPont™ AirGuard® A2 FR, enhanced safety.

Tyvek® is also designed to work as part of a holistic and optimal system with a range of other proven DuPont products for the building envelope, including the DuPont™ Tyvek® AirGuard® advanced AVCL series, the highly versatile Tyvek® FlexWrap air and water sealing tape, plus other specialised tapes and sealants. All DuPont building products come with the renowned service, expertise and technical back-up of a world-class science company.

About DuPont Safety & Construction

DuPont Safety & Construction is a global leader in delivering innovation for life’s essential needs in water, shelter and safety; enabling its customers to win through unique capabilities, global scale and iconic brands including Corian®, Kevlar®, Nomex®, Tyvek®, GreatStuff™ and Insta-Stik™.

About DuPont

DuPont (NYSE: DD) is a global innovation leader with technology-based materials, ingredients and solutions that help transform industries and everyday life. Our employees apply diverse science and expertise to help customers advance their best ideas and deliver essential innovations in key markets including electronics, transportation, construction, water, health and wellness, food, and worker safety. More information can be found at www.dupont.com/.

For more information about DuPont™ Tyvek® and AirGuard® or technical advice, please contact the DuPont™ Tyvek® Building Knowledge Centre in Bristol, UK. Email: Tyvek.construction@dupont.com or telephone 0117 970 9454/9455.

For Sales enquiries, contact us by phone on 0117 970 9456 or via our website’s Contact Us page www.building.dupont.co.uk

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The key to sustainable Inner Strength? It’s no mystery.

Building Products Index Ltd June 25, 2019 Membranes 1 Comment

View the DuPont™ Tyvek® entry on BPindex

Visit the DuPont™ Tyvek® website

Comprehensive Tyvek^®& AirGuard^®systems create a robust, airtight and energy-efficient building envelope… inside and out

Tyvek^®has always been a star performer, but now it comes with a complete cast of supporting players to enable easy installation, robust protection and greater energy-efficiency for the building envelope – in its entirety. With a range of advanced Tyvek^®Breather Membranes in specialised versions, plus smart AirGuard^®air & vapour control membranes (AVCLs) – and a fully comprehensive set of tapes and accessories, DuPont^™Tyvek^®offers an unrivalled system of products.

Additions to the specialised adhesive range make Tyvek^®the one-stop-shop for ensuring the integrity and airtightness of the building envelope, from timber frame housing to high-rise construction. With all the lasting quality and premium adhesion one would expect of the brand, many elements of this complete and compact offering are ‘universal’ products suited multiple applications, thus simplifying installation and saving on time and cost.

The Tyvek^®family of products comes with expert technical support from a global knowledge network to help construction projects meet every key target – from safety to sustainability. In today’s ‘climate’ can the industry afford to take a chance on anything less?

An enhanced range of tapes & accessories:

Tyvek^®& AirGuard^®accessories include products to answer the challenge of any combination of membranes, any type of penetration or repair, and are suited to all kinds of building materials and conditions. There is now an airtightness system for every need or application. Tyvek^®remains the product to trust for the external envelope, together with accessories, while the AirGuard^®brand ensures reliable airtightness to the interior, thus completing the offering for energy-efficient systems.

*NEW* Tyvek^®Double-sided Tape (Double-sided acrylic tape ideal for temporary fixings of a vapour control layer.)

*NEW* Tyvek^®Plastering Tape (High performance airtight and moisture adaptive carrier tape that can be rendered. It seals difficult areas such as windows, doors and timber to block connections. A product for both interior and exterior application.)

*NEW* AirGuard^®Sealant (An adhesive sealant for permanently elastic, airtight bonding of joints and structural connections, plus connections of AVCLs to many different surfaces.)

*NEW* Tyvek^®Primer (Transparent primer that is permanently tacky after curing, with a very fast curing time. It is recommended for high-porosity surfaces to create good adhesion.)

*NEW* AirGuard^®Tape (High performance flexible and hand-tearabletape to seal difficult areas such as corners inside the building with a very high tack)

‘Rising Stars’ include: Tyvek^®FlexWrap EZ and NF (a high performance, flexible self-adhesive flashing tape for airand water tight seals around windows, doors, and multiple custom shapes or awkward penetrations.)

Reliable ‘All Stars’ include: Tyvek^®Acrylic, Tyvek^®Double-sided, Tyvek^®Butyl, and Tyvek^®Metallised

A Brand for All Seasons…

The Tyvek^®brand has it covered – for every regulation or specification and whether for installation to the interior or exterior of the envelope. All adhesive products work as part of optimal, holistic systems.

The AirGuard^®brand stands for high performance AVCLs and complementary accessories that make your building airtight from the inside.

Considering such a comprehensive and efficient offering, backed by proven reliability and expert service, why would responsible professionals choose any other system than Tyvek^®and AirGuard^®? Especially when every crucial box is ticked, from air and water tightness, to moisture control, durability, ease of installation… and vitally, improved energy performance in buildings.

About DuPont™ Tyvek® & DuPont Building Membranes and Products:

DuPont^™Tyvek^®advanced building membranes are unique in the market due to their high-quality single layer construction. Tyvek^®, in all its specialised versions, is naturally vapour open but also durably wind and water-tight. Lightweight yet robust, it is easy to install and offers long-term, proven reliability. Designed to protect the building envelope against the effects of weather and moisture, this family of membranes also offers optimal air-tightness and can help to improve the thermal performance, energy-efficiency and interior climatic stability. Tyvek^®is also designed to work as part of a holistic and optimal system with a range of other proven DuPont products for the building envelope, including the AirGuard^®advanced AVCL series, the highly versatile Tyvek^®FlexWrap air and water sealing tape, plus other specialised tapes and accessories. All DuPont building products come with the renowned service, expertise and technical back-up of a world-class science company.

About DuPont Safety & Construction

About DuPont

DuPont (NYSE: DD) is a global innovation leader with technology-based materials, ingredients and solutions that help transform industries and everyday life. Our employees apply diverse science and expertise to help customers advance their best ideas and deliver essential innovations in key markets including electronics, transportation, building and construction, health and wellness, food and worker safety. More information can be found at www.dupont.com.

For more information about DuPont™ Tyvek®, AirGuard® and accessories please visit: energy-efficiency.dupont.com or www.construction.tyvek.co.uk or call 08444 068 722in the UK and 087 922 2740 in the ROI.

Media contact DuPont™ Tyvek®: QuickStep PR, T: 020 7609 1151, E: stephanie@qspr.com

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Advanced Tyvek® AirGuard® Smart offers a clever new way to control both airtightness and moisture

Building Products Index Ltd January 23, 2019 Membranes Leave a Comment

View the DuPont(tm) Tyvek® entry on BPi

Visit the DuPont(tm) Tyvek® website

View the Tyvek® AirGuard® product details

Now the complex needs of the modern building envelope can be met by a product that is both simple to work with and ingenious in managing multiple demands. Adaptable to varying climatic conditions, Tyvek® AirGuard® Smart is a membrane with a difference – developed by the experts in protecting structures against environmental damage while also improving thermal performance.

Wrapping the interior side of the envelope, Tyvek® AirGuard® Smart acts as a highly efficient air and vapour control layer (which easily achieves below Passive house levels of airtightness) but has also been formulated to adapt to rising humidity conditions and so allow any trapped, or unplanned, moisture to escape towards the inside of the building.

No_Smart — Damage in a structure without smart protection

DuPont Tyvek AirGuard Smart — Tyvek® AirGuard® Smart AVCL adapts to humidity

This clever variation allows faster evacuation of built-in humidity in new construction elements (e.g. wet rafters). It also means avoiding humidity infiltration from living spaces into the building’s structure, thereby minimising the risk of expensive damage from damp and mould and so operating in the standard function of an AVCL.

With an impressive variable water vapour resistance range of sd value 0.2m for a humid environment (1 MNs/g) to more than sd-value 35m for a dry environment (175 MNs/g), Tyvek® AirGuard® Smart offers advantages from reduced drying out time for constructors to enhanced energy efficiency and comfort for the building owners.

Easy application also allows for continuous installation of the AVCL from the outside, without risking condensation to the upper side of the rafters and, uniquely, the product can be fitted to both flat and pitched roof constructions, with a high resistance underlay.

With all the reliability and great service to be expected of a product under the Tyvek® brand, Tyvek® AirGuard® Smart also comes with clear and detailed installation guidelines and the technical back-up of the Tyvek® BuildingKnowledge Centre.

About DuPont™ Tyvek® & DuPont Building Membranes and Products:

DuPont™ Tyvek® advanced building membranes are unique in the market due to their high-quality single layer construction. Tyvek® breather membranes are naturally vapour open but also durably wind and water-tight. Lightweight yet robust, they are easy to install and offer long-term, proven reliability. Designed to protect the building envelope against the effects of weather and moisture, this family of membranes also offers optimal air-tightness and can help to improve the thermal performance, energy-efficiency and interior climatic stability of a building.

Tyvek® is designed to work as part of a holistic and optimal system with a range of other proven DuPont™ Tyvek® products for the building envelope, including the Tyvek® AirGuard® advanced AVCL series, the highly versatile Tyvek® FlexWrap NF and EZ sealing tapes, plus other specialised membranes, tapes and sealants. All DuPont building products come with the renowned service, expertise and technical back-up of a world-class science company.

For more information about the Tyvek® range of advanced products please visit: www.construction.tyvek.co.uk or call 08444 068 722 (087 922 2740 in ROI)

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