25mm Eaves Vent System

  • Simple, fast installation
  • Dry fix system
  • Allows clip fixing of tiles at eaves
  • Compresses insulation ensuring airflow
  • Prevents ponding of water
  • Prevents ingress of birds, vermin and insects
  • Meets BS 5534 requirements and NHBC guidelines


Our 25mm Eaves Vent System is designed to provide continuous free vent areas of 10mm or 25mm to roof voids. The system is both efficient and unobtrusive, and it is suitable for roof pitches from 12.5° to 55°. It can also be used for ventilating the batten cavity where needed.

The system enables clip fixing of all the tiles at the eaves and also compresses insulation, ensuring excellent airflow. It prevents ponding on the underlay and prevents all wildlife from getting in, and it is suitable for both eaves-to-ridge and eaves-to-eaves ventilation.

Our 25mm Eaves Vent System is fast and easy to install, saving you time on your projects. It also meets BS 5534 requirements and NHBC guidelines.

Function & Compatibility

  • 25mm continuous ventilation at eaves
  • 25,000mm2 free area of ventilation per linear metre
  • 12.5°-55° pitched roofs
  • Eaves-to-ridge or eaves-to-eaves ventilation
  • Suitable for all Marley tiles and slates
  • Suitable for other manufacturers' tiles and slates
Technical Data
25 mm EV system information

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