WAC 51-50-1019   Number of exits and continuity.  


1019.1 (IFC 1019.1) Exits from stories. All spaces within each story shall have access to the minimum number of exits as specified in Table 1019.1 based on the occupant load of the story, except as modified in Section 1019.2. For the purposes of this chapter, occupied roofs shall be provided with exits as required for stories. The required number of exits from any story, including basements, shall be maintained until arrival at grade or the public way.

EXCEPTION:

One means of egress is permitted within and from dwelling units with a maximum occupant load of 20 where the dwelling unit is equipped throughout with an automatic sprinkler system in accordance with Section 903.3.1.1.

TABLE 1019.1 (IFC 1019.1)

     MINIMUM NUMBER OF EXITS FOR OCCUPANT LOAD

OCCUPANT LOAD (persons per story)	MINIMUM NUMBER OF EXITS (per story)
1-500	2
501-1,000	3
More than 1,000	4

1019.2 (IFC 1019.2) Buildings with one exit. Only one exit shall be required in buildings as specified below:

     1. Buildings meeting the limitations of Table 1019.2, provided the building has not more than one level below the first story above grade plane.

     2. Buildings of Group R-3 Occupancy.

     3. Single-level buildings with occupied spaces at the level of exit discharge provided each space complies with Section 1015.1 as a space with one exit or exit access doorway.

TABLE 1019.2 (IFC 1019.2)

     BUILDINGS WITH ONE EXIT

OCCUPANCY	MAXIMUM HEIGHT OF BUILDING ABOVE GRADE PLANE	MAXIMUM OCCUPANTS (OR DWELLING UNITS) PER FLOOR AND TRAVEL DISTANCE
A, Bd, Ee, F, M, U	1 Story	49 occupants and 75 feet travel distance
H-2, H-3	1 Story	3 occupants and 25 feet travel distance
H-4, H-5, I, R	1 Story	10 occupants and 75 feet travel distance
Sa	1 Story	29 occupants and 100 feet travel distance
Bb, F, M, Sa	2 Stories	30 occupants and 75 feet travel distance
R-2	2 Storiesc	4 dwelling units and 50 feet travel distance

	For SI: 1 foot = 304.8 mm.
	a. For the required number of exits for open parking structures, see Section 1019.1.1.
	b. For the required number of exits for air traffic control towers, see Section 412.1.
	c. Buildings classified as Group R-2 equipped throughout with an automatic sprinkler system in accordance with Section 903.3.1.1 or 903.3.1.2 and provided with emergency escape and rescue openings in accordance with Section 1026 shall have a maximum height of three stories above grade plane.
	d. Buildings equipped throughout with an automatic sprinkler system in accordance with Section 903.3.1.1 with an occupancy in Group B shall have a maximum travel distance of 100 feet.
	e. Day care maximum occupant load is 10.

[Statutory Authority: RCW 19.27.074, 19.27.020, and chapters 70.92, 19.27, and 34.05 RCW. 07-01-091, § 51-50-1019, filed 12/19/06, effective 7/1/07.]