Someone asked me today whether a separate deadbolt would be allowed in addition to a lever handle latchset on a single bathroom door in a non-residential facility. My response was that the door should be able to be unlatched with one operation, per IBC 2009 1008.1.9.5:
1008.1.9.5 Unlatching. The unlatching of any door or leaf shall not require more than one operation.
1. Places of detention or restraint.
2. Where manually operated bolt locks are permitted by Section 1008.1.9.4.
3. Doors with automatic flush bolts as permitted by Section 1008.1.9.3, Exception 3.
4. Doors from individual dwelling units and sleeping units of Group R occupancies as permitted by Section 1008.1.9.3, Exception 4.
My colleague then suggested that a bathroom door might not be considered a means of egress door so it wouldn't have to comply with the requirements of Chapter 10. I have always viewed a door in this application (single toilet, single office, etc.) as providing egress from that space. The IBC definition of an exit access doorway is, "A door or access point along the path of egress travel from an occupied room, area or space where the path of egress enters an intervening room, corridor, unenclosed exit access stair or unenclosed exit access ramp."
Would a single toilet be considered an "occupied room?" How about a janitor's closet or storage room? Don't these doors have to meet the requirements for egress? If these types of doors are not "doors in a means of egress" I'm going to have to reprogram my mind.
As always, thank you for your help.