Automatic Opening Vents (AOVs) are essential components of a building’s fire safety and ventilation system.
They are designed to automatically open in the event of a fire, allowing smoke and heat to escape, thereby improving visibility and reducing temperatures for occupants and firefighters. Let’s explore the different types of AOVs and their unique features. Pulsar Vertex is a leading provider of AOV systems in partnership with Velux .
Natural AOV System
The Natural AOV System utilizes natural airflow dynamics to eliminate smoke in the event of a fire. These systems often include rooflights that are electrically operated and can open to 140° in less than 60 seconds. They allow natural light into a building and can also be used for comfort ventilation and roof access.
Mechanical AOV System
Mechanical AOV Systems are designed to maintain clear escape and access pathways during a fire and support firefighting efforts. They can range from automated roof hatches, glazed or metal louvres to wall-mounted end-of-corridor vents, automatic opening vent windows, and internal smoke shaft damper doors.
Smoke & Heat Exhaust Ventilation Systems (SHEVS)
SHEVS are designed to vent smoke and heat in the event of a fire. They can be mechanically opened, powered by springs, pneumatic actuators, or electric motors. Alternatively, they can be drop-out vents, constructed of plastic which shrinks in the presence of heat.
Smoke Containment System
Smoke Containment Systems are designed to contain and control the spread of smoke within a building. They work in conjunction with other AOV systems to provide a comprehensive smoke management solution.
Each type of AOV system has its unique features and benefits, and the choice of system depends on the specific requirements of the building. It’s essential to consult with a fire safety professional to determine the most suitable AOV system for your building.
Fire Shafts in AOV Systems
Fire shafts play a crucial role in AOV installations. They provide an exhaust point in each protected zone within a purpose-built smoke shaft, usually extending to roof level. With superior air-tight performance, they prevent the spread of smoke and heat through a building and are a critical element in fire safety
In the event of a fire, natural venting systems open airways, using natural airflow dynamics to remove smoke. This can be attained by opening windows or vents, an automatic opening vent (AOV), or where there is no external wall, a vertical smoke shaft. This allows for the removal of smoke and the influx of fresh air, making evacuation safer and aiding firefighters in their efforts.
Remember, the right AOV system can save lives and property in the event of a fire. So, make sure you choose wisely!
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