Utilizes Visqueen's Advanced Barrier Technology. A 0.5 mm thick, flexible seven layer coextruded film providing volatile organic compound (VOC) and ground gas resistance.

The DPC has an embossed/debossed finish, is coloured gold/white and can be installed with either surface facing upwards.

It is supplied in 20 m length rolls and the following widths: 500 mm, 600 mm, 750 mm and 900 mm.

Features and benefits

Complies with CIRIA C748:2014 - industry standard for volatile organic compounds (VOC) protection.
Complies with BS 8485:2015 + A1:2019 - industry standard for methane and carbon dioxide protection.
Flexible - easy to detail and install on site.
Multi functional - also acts as a radon resistant damp proof course.
Dual jointing methods - lap joints can be taped or heat welded.
Visqueen Ultimate Preformed Units available - simplifies complex or awkward detailing.

Approvals and standards:

Complies with CIRIA C748:2014
Conforms to the specification requirements of BS 8485:2015 + A1:2019.
Suitable for all Characteristic Gas Situation (CS) ground gas regimes.
Conforms to the specification requirements of NHBC Amber 1 and Amber 2 applications.
Conforms to the specification requirements of BR 211:2015.
Shear strength tested to BS EN 1052-4:2000 Methods of test for masonry - Part 4.
Flexural mortar bond strength tested in accordance with DD 86-1:1983.
UKCA, CE, UKNI Mark to EN 14909:2012 - Flexible sheets for waterproofing.
Quality Management System ISO 9001:2015.
Occupational Health and Safety System ISO 45001:2018.
Environmental Management System ISO 14001:2015.

System components:

Visqueen Zedex Jointing Tape, 100 mm x 15 m.
Visqueen Zedex DPC Surface Fixing System.
Visqueen Ultimate Preformed Units.
Visqueen DPC Joint Support.
Visqueen HP Tanking Primer, 5 L.

DPC CE Visqueen Ultimate Gas DPC Declaration of Performance