Visqueen Ultimate HC Blok is a 0.5mm thick, chemically resistant co-extruded volatile organic compound barrier and gas barrier. It is coloured gold on the upper surface and white on the reverse. The product is supplied in single wound rolls (not folded), 2.44m x 41m.
Gauge / Mil
Performance Category / Characteristics
WVTR (Water Vapor Transmission Rate)
White, Blue, Gold
Features & Benefits:
Agrement certified - third party accreditation
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 and damp proof membrane
Dual jointing methods - lap joints can be taped or heat welded
Visqueen Ultimate HC Blok is suitable for use in all types of buildings to prevent the ingress of harmful levels of volatile organic compounds (VOCs). The barrier can be positioned above a solid concrete ground floor slab or above a precast suspended segmental ground floor system, e.g. beam and block floor.
The barrier can also be used in all types of buildings to prevent the ingress of harmful levels of ground gases e.g. methane, carbon dioxide and radon. The barrier also acts as a damp proof membrane. In this application, the barrier can be positioned above or below a solid concrete ground floor slab or above a precast suspended segmental ground floor system, e.g. beam and block floor.