Permavent APEX is a 3 layer air open and vapour permeable membrane, providing unique condensation control which eliminates the need for low or high level ventilation. APEX also provides a secondary barrier to water ingress.
Permavent APEX meets the requirements of BS 5534:2014+A2:2018 code of practice for slating and tiling for pitched roofs and BS 5250:2021 Management of moisture in buildings – code of practice.
An integrated double tape system allows APEX to be installed in all UK wind zones.

• Air open and vapour permeable membrane
• Suitable for use with all types of solar panels
• BBA certified 23/6867
• Apex meets BS 5534:2014+A2:2018. Slating and tiling for pitched roofs and vertical cladding. Code of practice
• Integrated double tape system
• APEX can be used without ventilation
• For use with any types of roofing/walling applications
• Available in 1m x 50 rolls taped; 0.5m x 50m, 1m x 50m and 1.5m x 50m rolls untaped version