We use strictly necessary cookies. You may disable these by changing your browser settings, but this will detrimentally affect how the website functions.
We’d also like to set optional Google analytics ‘Performance Cookies’ to help us to improve our website by collecting and reporting anonymous information on how you use it.
By clicking accept, performance cookies will be enabled. Clicking reject will disable performance cookies whilst still providing access to the site.
Visqueen Ultimate Geoseal is a 1mm thick, robust pre-applied waterproofing barrier. It is coloured grey on the upper surface and black on the reverse. The grey surface is textured to aid adhesion to cast concrete. The barrier is supplied in single wound rolls (not folded), 2.44m x 41m.
Features & benefits
Agrement certified - third party accreditation
Complies with NHBC Foundation’s NF94 guidance for use in Type B and Type C membrane locations
Complies with CIRIA C748:2014 - industry standard for volatile organic compounds (VOC) protection
Complies with the methane gas transmission rate, mass per unit area and thickness requirements of BS 8485:2015 + A1:2019 - industry standard for methane and carbon dioxide protection
Type A Barrier Membrane (Tanking Membrane) - resistant to ground water in accordance with BS 8102:2022
High resistance to puncture - greatly reduces risk of barrier becoming damaged during the build process
Multi functional - also acts as a radon and damp proof membrane
Dual jointing methods - lap joints can be taped or heat welded
Need more information?
Our team of highly experienced technical experts are always on hand to provide the highest level of support and advice to our customers.