Permavent APEX Untaped (1m x 50m)

Permavent APEX Untaped (1m x 50m) is an air open and vapour permeable membrane which provides condensation control. Permavent APEX eliminates the need for low or high level ventilation and also provides a secondary barrier to water ingress.

• Fully Air Permeable
  APEX air permeability allows moisture to escape through the movement of air, which eliminates interstitial condensation in pitched roofs. This can be particularly important during the drying out period of a new build.
• Vapour Permeable
  Permavent APEX vapour permeability helps to reduce the condensation withing the roof structure, whilst protecting it from the rain and wind outside until primary barriers are installed. Permavent APEX has Sd value of 0.01m.
• Water Resistance
  Permavent APEX is highly water resistant with a W1 rating (EN 13589).
• BBA Certification
  Permavent APEX has full BBA Certification for use in both cold and warm non ventilated roofs.
• Compliant with BS 5534: 2014 + A2 2018 Code of Practice
  Permavent APEX is fully compliant with BS5534:2014+A2:2018 Code of Practice and our taped version can be used in all UK wind zones without the need for high and low level ventilation.

• Width: 1m
• Length: 50m
• Weight, g/m2: 180
• Water tightness, class: W1
• Water vapour transmission (sd), m: 0.01
• Maximum tensile force (MD), N/50mm: 330
• Maximum tensile force (CD), N/50mm: 270
• Elongation at max. tensile force (MD), %: 56
• Elongation at max. tensile force (CD), %: 68
• Resistance to tearing MD (nail shank), N: 210
• Resistance to tearing CD (nail shank), N: 210