AOV Louvre roof smoke vent for flat roofs

  • CE marked and fully certified to BS EN12101-2
  • Supplied in various standard sizes or custom built for specific requirements
  • Minimal energy consumption
  • Different blade options available

Suited to high-security properties and those that require fall arrest, louvre roof smoke vents disperse large quantities of heat and smoke in the event of a fire. When situated at roof level, the roof louvre vents expel smoke and enable the fast and efficient smoke clearance to help protect the occupants exiting the building in areas such as stairwell, lobbies and corridors. An AOV (Automatic Opening Vent) is a good solution that can be triggered by a call point or detector or smoke vent control panel.

Quality Products

Standard or Bespoke units available 

  • Practical smoke vent soloution
  • Daylight option available using polycarbonate or multi-wall blades
  • Made to measure available up to 2500 x 3800mm
  • High security

A specialist Louvre smoke vent for smoke ventilation systems on large roofs or those with high wind loads. Particularly suited for head of smoke shaft ventilators, this solution is resistant to impact when open and closed and can be installed in most roof applications. Thermadome roof louvres are particularly suited to roof applications or areas when the footprint of the smoke vent needs to remain as small as possible and there may be insufficient space for a single or double leaf type opening units.

  • CE marked and fully certified to BS EN12101-2
  • Different blade options available
  • Opening to 90° providing maximum aerodynamic efficiency
  • Can be integrated into BMS or supplied with dedicated controls
  • Minimal energy consumption
  • Supplied in various standard sizes or custom built for specific requirements

Smoke Vent Services

We provide our customer with the best possible service

Quality Assurance

With many years’ experience in the industry, you can rest assured that our team only work with the highest quality products and brands.

Personal Service

We always put our customers first and promise to provide you with the highest levels of customer service.

Wide Range

A large selection of materials, brands and design features to help you create the perfect smoke ventilation system.

Free Quotes

Find out how we can help you with a free quote from our friendly and experienced team.


Our knowledgeable team can help you find exactly what you need – they are always on hand to offer assistance.


We offer free delivery nationwide throughout the UK for all our products.

Why choose us?

  • Experts In The Industry

    With many years’ experience in the smoke vent and dome light industry, we are the premier company to call on for your project.  Suppling products to trade, contractors and builders, as well as individuals, we can provide the ideal solution for your needs.

  • Extensive Range

    We have a great range of products from excellent brands such as Stardome, Astroglaze, Skylantern, Solarglaze and Thermodome.  We stock our products right here in the UK, so we can supply any product to any location easily and quickly.

  • Free Quotes

    We offer a completely free quotation for your smoke ventilation system!

  • Easy Ordering

    We have a team of experts on hand to help you select the right products for your needs and specification.  Placing an order is simple – just contact us to speak to our helpful team!

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    National Domelight Company
    Room 205
    Basepoint Business Centre
    377-399 London Road
    GU15 3HL