Which of these is a key component of fire safety measures in buildings?

The regular maintenance of fire alarms and sprinklers is essential for ensuring the effectiveness of fire safety measures in buildings. This component plays a crucial role in detecting fires early and suppressing them to mitigate potential damage, loss of life, and property damage. Regular checks and maintenance ensure that these systems are operational and can respond promptly in an emergency.

Effective fire safety doesn't just rely on the presence of equipment; it requires that the equipment is functional and capable of performing its intended purpose when needed. Alarm systems must be tested to ensure that they can alert occupants to danger in a timely manner, while sprinklers must be kept in good working order to control or extinguish fires effectively.

Each of the other options lacks comprehensive fire safety elements. Solely focusing on fire suppression equipment overlooks the need for detection systems and emergency exits. Exclusively using non-combustible materials does not address the ongoing random factors that could lead to a fire, such as human behavior or equipment failure. Installing additional floors for occupancy can actually increase fire risks and complicate evacuation routes if safety measures are not scaled accordingly. Thus, regular maintenance stands out as a critical, proactive strategy within a complete fire safety program.