What is an important aspect of fire prevention in residential buildings?

Smoke detector installation and maintenance is a critical aspect of fire prevention in residential buildings because these devices are essential for detecting the presence of smoke, which is often an early indicator of fire. When functioning properly, smoke detectors provide early warnings to occupants, giving them precious time to evacuate the premises safely. Regular maintenance, such as testing the alarms and replacing batteries or the entire unit as per manufacturer guidelines, ensures that smoke detectors are reliable and effective.

While fire drill frequency is important for preparedness, it does not directly prevent fire from occurring. Emergency exit signage is vital for guiding occupants during an emergency but does not influence the likelihood of a fire starting. The use of non-combustible materials can enhance safety, particularly in construction, but the immediate detection of fire through smoke detectors is paramount in protecting lives in a residential setting.