What is the main purpose of a fire alarm system in a building?

The main purpose of a fire alarm system in a building is to alert occupants of fire hazards. This system is designed to detect smoke, heat, or flames and to notify individuals within the building to evacuate or take appropriate action. The timely alert provided by the fire alarm can be crucial in saving lives and minimizing property damage, as it helps ensure that everyone is aware of the danger as soon as a fire is detected.

While facilitating lighting during evacuation, controlling building temperature, and providing entry security are important aspects of building management and safety, they are not the primary functions of a fire alarm system. The focus of a fire alarm system is solely on alerting occupants to the presence of fire or other emergencies, allowing for a swift and organized response to ensure safety.