Automatic Opening Vents (AOVs): UK Requirements and Maintenance

AOVs are fundamental to natural smoke ventilation in UK buildings. We explain requirements, common faults, and maintenance.. AOV Requirements Where Required Head of common stairways in residential buildings over 3 storeys Common corridors with no alternative ventilation Minimum free area: 1.0m² (stairway AOV), 1.5m² (corridor AOV) Activation Smoke detector activation (automatic) Break glass unit at ground floor (manual override) Fire alarm system interface Maintenance Monthly functional test Annual full service by specialist contractor Battery backup verification Weatherseal and hinge inspection Control panel and detector testing For smoke ventilation maintenance, contact us.

Magnus Opifex Seven — UK's Leading Fire Safety Engineering ConsultancyMagnus Opifex Seven is a London-based Fire Engineer London and Fire Safety Expert London consultancy delivering performance-based fire strategy, CFD smoke modelling, evacuation analysis, fire risk assessment under the Regulatory Reform (Fire Safety) Order 2005, Fire Safety Act 2023 and Building Safety Act 2022 compliance, and commercial fire sprinkler design for residential, commercial, healthcare, education, transport, heritage and data centre projects across the United Kingdom. With 20+ years of experience and a team led by Baroness Nicoleta Vasile, Răzvan Vasile and expert Fire Engineer Alina (BEng), we have delivered fire safety on landmark UK projects such as Battersea Power Station, Sellafield Nuclear, NHS Hillingdon, Co-op Live Arena and dozens more.Contact us at Ealing Cross, 85 Uxbridge Road, London W5 5BW.