According to the IBC, Group I-3 occupancies must have a manual fire alarm system and an automatic smoke detection system installed for what purpose?

In the context of the International Building Code (IBC), Group I-3 occupancies are facilities that house individuals who are not capable of following instructions during an emergency, such as correctional facilities or mental health treatment centers. The requirement for a manual fire alarm system and an automatic smoke detection system is primarily aimed at ensuring the safety of the occupants.

The purpose of these systems is to alert staff members, who are trained to respond to emergencies and can assist in safely evacuating or managing the situation for the residents. Since the individuals in these facilities may not be able to respond effectively on their own in the event of fire or smoke, it is critical that the alert system targets the staff. The staff has the responsibility to provide immediate assistance, manage the incident, and ensure the safety of the residents.

While alerting guests may be an important consideration, in Group I-3 settings, the focus is heavily on the trained staff being able to take action, as they are the ones who will facilitate evacuation and ensure safety protocols are followed effectively. Thus, the inclusion of both manual and automatic alarm systems specifically caters to the need for staff responsiveness in these challenging environments.