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    The holistic approach of Tyvek® achieves extraordinary results at BRE

    2nd June 2017

    If achieving sufficient airtightness seems complex or challenging, there’s actually a very simple solution: work with a proven system of products – and the expert team behind them. Recently, a ‘passive house’ demonstration at BRE featuring key DuPont membranes, AVCLs and tapes had extraordinary results.

    A specially built structure was carefully fitted with Tyvek® Supro, Tyvek® HouseWrap, AirGuard® Control AVCL and the latest low-emissivity Tyvek® membrane, then correctly sealed with Tyvek® tapes (including new Tyvek® FlexWrap EZ) at all laps, penetrations, curves and corners.

    A blower door was fitted and the structure pressurised to the industry standard 50Pa. Results were recorded after each stage of application with an impressive final figure of 0.12 m3/hr/m2 @50Pa (0.24 ACH), well below the Passivhaus standard of 0.6 ACH, which is equivalent to around 0.3 m3/hr/m2 @ 50Pa. Adding to extensive field experience, this latest BRE test demonstrates the importance of the kind of quality, expertise and holistic approach available from DuPont.



    For more information about DuPont™ Tyvek®, Tyvek® FlexWrap and AirGuard® and in the UK please visit:  or call 01275 337 660 (087 922 2740 in ROI)