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AV50 AbVent ventilator

Glidevale AV50 AbVent Ventilator provides unobtrusive high-level ventilation in conjunction with lead roll details on plain tile and slate roofs. It is particularly useful in top edge abutment details where there is limited vertical clearance.

Features & benefits

  • Unobtrusive when installed.
  • Does not affect the normal laying of the roof covering.
  • Optional factory-fitted apron flashing for use with profiled tiles.
  • Guaranteed 5000mm²/m ventilation provision to comply with BS 5250 and Building Regulations
  • Minimum pitch 20°



Range Brochure


Fixing instruction


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For any questions or queries about our product ranges and the technical support services we can offer, please contact us using the form below.

Glidevale Protect is a division of Building Product Design Ltd.

Other subsidiaries include ventilation systems specialist Passivent and Kingfisher Louvres, manufacturer of aluminium louvres systems.

Important Notice

Please be vigilant of fraud/cyber crime. If you receive an email from our parent company Building Product Design Ltd, please check that the email address from the sender ends in '' and any phone number given is 0161 905 5700.

If you receive any emails ending in '' or '', these are NOT legitimate, and you should contact us as soon as possible at

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