About smoke control

If there is a fire, a well-designed smoke control system can save lives and help protect property. It will:

  • Keep escape and access routes free from smoke.
  • Facilitate fire-fighting operations.
  • Delay or prevent flashover, reducing the risk of the fire developing further.
  • Protect the contents of the building.
  • Reduce the risk of damage to the building.

Smoke control systems include:

  • Smoke and Heat Exhaust Ventilation Systems (SHEVS). Whether these are natural or powered, they remove smoke from the building. Inlet ventilators, dampers and ductwork are also often integrated into the scheme.
  • Smoke Containment Systems. These prevent the movement of smoke and heat from one area to another. They take the form either of physical barriers such as smoke curtains or fire curtains, or as pressure differential systems, also known as pressurisation systems.
  • Car Park Ventilation Systems. Induction (or jet) fans clear smoke from enclosed or underground car parks. These are often combined with fume ventilation to prevent the build-up of vehicle exhaust gases in normal day to day use of the car park. Louvres, dampers, and powered smoke extraction fans are also often integrated into the scheme.

Smoke control systems include:

Mechanical Overview
Mechanical smoke ventilation systems use powered elements such as fans to force the movement of smoke to allow it to escape through dampers, grills and vents. Mechanical systems generally utilise a smoke shaft and are often more efficient, sometimes requiring a very small smoke shaft. A mechanical system is useful where space is at a premium and/or natural airflow is insufficient to achieve the required performance.
Natural Overview
Smoke and Heat Exhaust Ventilation Systems (SHEVS)
Smoke Containment Systems
Car Park Ventilation Systems