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RV Rafter Ventilators

Glidevale RV Rafter Ventilators are designed for use with FV Fascia Ventilators and SV Soffit Ventilators to ensure a clear air path between the roof underlay and insulation at all types of eaves. Suitable for new build and refurbishment work.

Features and benefits

  • Independent of SV and FV ventilators enabling use with any depth of soffit.
  • Suits all standard rafter spacings.
  • Options to provide ventilation openings of 10,000mm²/m or 25,000mm²/m.
  • Options for open foot rafters.
  • Cross strengthening ribs prevent underlay sagging.



Range Brochure


Fixing instruction


Have a question?

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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