Smoke ventilators

In the event of a fire Smoke Heat Exhaust Ventilation Systems (SHEVS) are designed to vent smoke and hot gases at roof level and low level replacement air is drawn into the building through EN12101-2 tested natural ventilators. This forms a stable layer below the ceiling so that a clear ‘smoke free’ layer is maintained below the smoke. The clear layer should be of sufficient height to allow for safe means of escape and to aid fire-fighting operations. It is common for Natural Ventilation Systems to be used for comfort as well as smoke and heat exhaust.

For more information on Smoke ventilators talk to Powrmatic Ltd