Bitumen membranes are self-adhesive waterproofing membranes. They are Type A barriers because they are applied to the external face of the structure and need to be strong and robust due to the fact that they will have aggregate and back fill compacted against them.

As part of a range of bitumen membranes, we have developed Hydroprufe 8000 which is a robust, waterproof and gas proof membrane. It is very lightweight and robust for maximum ease of application and whilst always resisting puncture to ensure a complete gas tight seal is achieved.