Upon discovering a fire, what should the first response of building security be?

The first response of building security upon discovering a fire should be to isolate the fire by closing doors. This action serves multiple critical purposes in the context of fire safety. By closing doors, building security can help contain the fire to a specific area, reducing the spread of smoke and flames to other parts of the building. This containment can preserve the integrity of escape routes and maintain the safety of occupants who may still be trying to evacuate.

Furthermore, isolating the fire contributes to overall fire control measures, giving occupants additional time to evacuate safely and allowing emergency responders to manage the situation more effectively when they arrive. Effective isolation can significantly minimize damage to the property and increase the effectiveness of firefighting efforts.

Evacuating staff immediately or waiting for further instructions may lead to confusion and delays, while contacting the fire department is crucial but should typically occur after taking steps to manage the fire situation locally. Thus, closing doors is a proactive measure that significantly enhances safety for everyone in the building.