Emergency Escape and Single-Exit Buildings
Section 1030.1, the “General” section for the emergency escape and rescue openings (EERO) requirements of the International Building Code/2015, has created some confusion. Here it states, “In addition to the means of egress required by this chapter, provisions shall be made for emergency escape and rescue openings in Group R-2 occupancies in accordance with Tables 1006.3.2(1) and 1006.3.2(2) and Group R-3 occupancies.”
All Group R-3 occupancies, and certain Group R-2 occupancies, are permitted to have one means of egress. The above code, which references requirements for EEROs, is applicable only to those R-2 and R-3 occupancies with one means of egress.
For example, a 3-story Group R-2 with no more than 4 dwelling units per story is permitted to have one means of egress as long as common travel distances are maintained to 125 feet (see Table 1006.3.2(1)). If the designer chooses to use this option, then the building is required to have EEROs installed in sleeping areas. Note that I do not reference Table 1006.3.2(2); this is because, as per Note C, this table is used for R-2 occupancies consisting of sleeping units, and I specifically state dwelling units in my example.
In all cases, if there are two means of egress provided, then EEROs are not required.
Source: Rob Austin, Code Assistance Unit, (609) 984-7609
Reprinted with permission CCC – Spring 2018