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How AOV Systems Work
AOV systems automatically remove smoke and heat from a building during a fire, helping to keep escape routes clear for occupants and firefighters.
A typical AOV system includes:
- A smoke vent (roof hatch, skylight, or facade window etc.)
- Smoke detection and control panels
- Manual override controls for firefighters
- Backup power supply to ensure operation during power loss
Every project is different, so our specialists will review your drawings and fire strategy to help specify a compliant solution.
Looking for a more detailed explanation? Read our guide on how AOV systems work.
Complete AOV Smoke Vent Kits
Our complete AOV smoke vent kits include the key components required for a compliant smoke ventilation system, ready for straightforward installation. Every kit can be tailored to suit your project requirements.
AOV Components
We supply a wide range of AOV components, including AOV windows, louvers, dampers and controls . Many products are available from stock for fast delivery. If you can’t see what you need on our website, get in touch and we can help.
Fully Specified AOV Smoke Vent Systems
Every project is supported by a dedicated smoke ventilation specialist who will work with you from initial enquiry through to technical support during installation.
We’ll review your drawings and fire strategy, help you understand what’s required and recommend the right setup for your building.
From simple stairwells to more complex multi-zone systems, we are here for guidance at every stage.
Key Considerations for AOV Systems
Regulations and Compliance
AOV solutions are typically required as part of a building’s fire strategy
Whether you’re specifying an individual AOV component or a complete smoke ventilation system, product selection should always align with the project’s fire strategy and relevant standards.
Dedicated Smoke Ventilation Experts
Every project is supported by a dedicated smoke ventilation expert who’ll review your drawings and fire strategy, recommend the right solution, and provide technical support from specification through to completion.
Supporting Your Project
We review your drawings & fire strategy, then spec a compliant solution.
You’ll work with a smoke vent specialist, from enquiry to delivery.
Technical support during installation and after supply.
Whether you’re working from a fire strategy, replacing an existing system or specifying a new project, our specialists can review your requirements and recommend the right AOV system, kit or components.
Frequently Asked Questions
- What’s the difference between an AOV window, skylight and roof hatch?
All three can be used as automatic smoke vents, but they suit different applications. AOV windows are typically installed in external walls, skylights are often used above stairwells, and roof hatches are commonly selected where both smoke ventilation and roof access are required.
- Do I need an AOV window or a fire-rated window?
AOV windows and fire-rated windows serve different purposes. An AOV window helps remove smoke and heat during a fire. While a fire-rated window helps prevent the spread of fire between compartments. Some projects require one, while others may require both. Reviewing the fire strategy and building layout is the best way to determine the most suitable solution. Learn more about fire rated windows here
- Can AOV systems be used for natural ventilation?
In many cases, yes. AOV windows and vents can often be connected to ventilation controls, allowing them to provide natural airflow as well as automatic smoke ventilation in the event of a fire.
- What information do you need to specify an AOV system?
The more information you can provide, the easier it is to recommend the correct automatic smoke ventilation system. Useful documents include:
- Drawings or plans
- Fire strategy documents
- Window schedules
- Project specifications
Even if you early on in your project we can provide initial guidance and recommend suitable AOV vents for your project. View our project support page for more information.