How often should alarms be tested in a building?

Alarms in a building should be tested monthly and also when there are changes in occupancy. This frequency is necessary to ensure that the alarm system is functioning correctly and can reliably alert occupants in the event of an emergency. Monthly testing helps to identify any issues with the system or its components, such as dead batteries or malfunctioning hardware, allowing for timely maintenance and repairs.

Additionally, testing after changes in occupancy is crucial because different usage patterns can affect how the alarm system interacts with the building's layout and occupant behavior. For instance, if new occupants have different needs or if the building undergoes renovations affecting its configuration, testing ensures that the alarms are appropriately calibrated and capable of providing adequate warning.

While annual and bi-annual testing schedules might ensure basic functionality, they do not provide the regular assurance needed for the safety of occupants, especially in high-traffic or high-risk environments. Testing only after a fire incident would be insufficient, as it does not proactively address potential issues that could arise at any time and compromises the overall safety of the building. Thus, the recommended practice emphasizes the importance of frequent and situational testing for the effective performance of alarm systems.