AVCL Membrane

OBEX CORTEX 0831 AVCL Membrane is a highly vapour-tight, airtight Class E membrane engineered to boost airtightness and moisture control in buildings. With an Sd value of 100 m, it provides a strong vapour barrier while supporting energy efficiency and robust moisture management.

This membrane is lightweight, easy to cut, and straightforward to install—helping you maintain consistent quality on site without unnecessary complexity.

Built with drylining contractors in mind

• Translucent clarity – see insulation and services through the membrane
• Tight seal – designed for both vapour and air control
• High vapour barrier – Sd 100 m for enhanced resistance to vapour flow
• Fast, flexible installation – simple to handle, cut, and place
• Flexible solutions – available in variable widths
• Regulation ready – DTU compliant for France

Typical applications

• Walls – as part of the air & vapour control layer
• Roofs – per the specific design