Certificate 04/4160 DuPont de Nemours (Luxembourg) s.ar.l. DuPont DB2112 breather underlay in energy-efficient non-ventilated pitched roof systems
Publication Year
2004
Document Status
Withdrawn
Abstract
Relates to DuPont DB2112 breather underlay in energy-efficient non-ventilated pitched roof systems, as roof tile underlays in tiled or slated pitched roofs. The product prevents the ingress of wind-blown rain or snow, is resistant to tearing during installation and is flexible at low ambient temperatures. It is permeable to water vapour, but will not allow liquid water to pass through. Includes detail sheets: (2) DuPont DB2112 breather underlay in non-ventilated cold pitched roof systems and (3) DuPont DB2112 breather underlay in non-ventilated warm pitched roof systems.
Document History
No longer valid.
Publisher Information
British Board of Agrément
The British Board of Agrément have been providing authoritative and independent information on the performance of building products for over 40 years. The certificates they produce contain data on durability, installation and compliance with Building Regulations.
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