Rhinoplast Evolution HD Gas membrane Barrier is our highest specification heavy duty chemically resistant co-extruded multi-layer gas membrane engineered to provide exceptional protection on construction sites contaminated by volatile organic compounds, hydrocarbons, and ground gases such as methane, radon, and CO2. Additionally, this high-performance membrane doubles as a damp proof membrane resistant to water moisture.

Developed with the latest co-extrusion technology, Rhinoplast Evolution HD uses virgin-grade high-performance engineering polymers, forming a fourteen-layer barrier that includes two layers of gas vapour resistant barrier polymer EVOH, encased in high-density polyethylene (HDPE) outer layers, achieving an overall thickness of 0.6mm.

This innovative construction provides outstanding robustness and performance without the need for aluminium foil or reinforcement allowing it to be installed in direct contact with concrete without risk of corrosion while ensuring the highest level of protection against harmful gas ingress.

Features and benefits:

Produced from virgin-grade high-performance polymers.
Advanced fourteen-layer co-extruded barrier.
Dual EVOH vapour resistant Layers encapsulated with chemically resistant High Density Polyethylene (HDPE) outer layers
Single wound to achieve a flat, even surface.
CE marked for waterproofing to EN 13967:2012+A1:2017.
BS8485:2015 + A1:2019 Compliant: Meets methane gas transmission rate specifications.
Incorporates performance guidance outlined in CIRIA C748.
Follows NHBC Foundation’s NF94 guidance for use in Type A, Type B and Type C membrane locations
Fully compliant with BRE BR 211:2023.
Conforms to the specification requirements of NHBC Amber 1 and Amber 2 applications.
Suitable for all characteristic Gas Situation (CS) ground gas regimes.
Suitable for fully welded systems.
The system is adaptable with venting layers and can be securely installed using sealing tapes or welded for VOC applications.
Integrated Components, Tapes, Protection fleece and DPC’s available