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 | | DUPONT™ TYVEK® UV FACADE :
POWERFUL NEW PROTECTION FOR BEAUTIFUL FAÇADES | | | DuPont Tyvek | | 18/08/2008 | | | Visually striking façade designs have become a key feature in modern buildings and that detailed façade elements in wood, glass, metal, ceramics or stone together with open joints are increasingly being used for structuring. In order to provide lasting protection against wind and weather for entire wall constructions that feature open joints, DuPont has developed DuPont™ Tyvek® UV Facade. This new high-performance façade sheet materials is based on the market-leading breather membrane DuPont™ Tyvek®, a material that plays a key role in modern construction techniques.
DuPont™ Tyvek® UV Facade is, to date, the only sheet material known to bear the CE mark in accordance with EN 13859-2, and it gives the planner a high degree of design freedom while guaranteeing maximum structural reliability. Created using the unique flash-spinning and bonding technology for market-leading DuPont™ Tyvek®, the new product has a functional layer which keeps out wind and water while at the same time enabling vapour-open diffusion.
Open joints on rainscreen cladding mean that the sheet material installed behind is exposed to UV light penetration throughout the life cycle of the building, thus the material must meet extremely high UV resistance requirements. After an extensive development and rigorous testing process, Tyvek® UV Facade was found to be capable of protecting the insulation and the structure behind open jointed rainscreen cladding for up to 50 years with joint widths of 20mm. Even with joint widths of 30mm, DuPont still gives a 10-year functional guarantee.
At the same time, Tyvek® UV Facade can be exposed to any weather conditions for up to 4 months before being covered, without any negative impact on the durability or functionality of the sheet material, especially critical on complex, multi-stage construction projects.
Tyvek® UV Facade enables sufficient vapour-open diffusion with its SD value of 0.035 m. As a result, the material lets trapped residual moisture freely evaporate while simultaneously protecting the insulation against incoming moisture.
Provided the layers are overlapped and bonded together properly, the material’s wind-resistant properties provide additional protection. That’s why DuPont developed a new double-sided tape with high initial tack. It allows taping the overlaps of the membrane without subjecting the tape to UV radiation. With a width of 48mm, the multi-purpose DuPont™ double-sided tape is especially designed to sustain wind pressure on taped overlaps and is fit for use under humid conditions.
Information on: http://www.construction.tyvek.com | |
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