3.1 Means of Egress and Emergency Escape

Introduction to Means of Egress

A means of egress is a continuous and unobstructed path of vertical and horizontal egress travel from any occupied portion of a building or structure to a public way. In the context of the International Property Maintenance Code (IPMC) Chapter 7, ensuring a safe, continuous, and unobstructed means of egress is critical for life safety. Code officials and property maintenance inspectors must rigorously evaluate egress components to prevent entrapment during fire emergencies.

A complete means of egress consists of three distinct parts:

1. Exit access: That portion of a means of egress system that leads from any occupied portion of a building or structure to an exit.
2. Exit: That portion of a means of egress system between the exit access and the exit discharge or public way.
3. Exit discharge: That portion of a means of egress system between the termination of an exit and a public way.

General Requirements for Egress (IPMC Section 702)

Code officials evaluating existing structures must ensure that a safe, continuous, and unobstructed path of travel is provided from any point in a building or structure to the public way. The IPMC Section 702.1 mandates that a safe, continuous, and unobstructed path of travel shall be provided from any point in a building or structure to the public way.

The required width of aisles in accordance with the International Fire Code (IFC) shall be maintained. No egress path can be reduced in width or capacity below the minimum requirements established by the building code under which the structure was constructed or the current fire code.

Locking Arrangements and Obstructions

One of the most frequent violations encountered by housing inspectors involves improper locking arrangements. Egress doors must be readily openable from the egress side without the use of a key, special knowledge, or effort.

• Deadbolts that require a key on the inside are strictly prohibited in residential occupancies (Group R) because they trap occupants during a panic situation.
• Security bars and grilles on windows and doors are permitted only if they are equipped with approved release mechanisms that are operable from the inside without the use of a key, tool, or force greater than that required for normal operation of the window or door.

Emergency Escape and Rescue Openings (EERO)

Basements and every sleeping room below the fourth story must have at least one operable emergency escape and rescue opening (EERO). These openings must open directly into a public way, or to a yard or court that opens to a public way.

The purpose of an EERO is twofold: to allow occupants to escape, and to allow firefighters in full gear to enter. Thus, strict dimensional requirements apply:

• Minimum net clear opening: 5.7 square feet (Exception: grade-floor openings shall have a minimum net clear opening of 5.0 square feet).
• Minimum net clear opening height: 24 inches.
• Minimum net clear opening width: 20 inches.
• Maximum sill height: 44 inches measured from the finished floor to the bottom of the clear opening.

If the sill height is below grade, a window well must be provided. The window well must have a minimum horizontal area of 9 square feet, with a minimum horizontal projection and width of 36 inches. If the depth of the window well exceeds 44 inches, a permanent ladder or steps must be installed.

Egress Illumination and Exit Signs

Egress illumination is a vital component of life safety. IPMC Section 702.4 requires that the means of egress, including the exit discharge, shall be illuminated at all times the building space served by the means of egress is occupied.

• In multi-family residential buildings (Group R-2), the corridors, stairways, and exterior exit paths must have continuous lighting.
• The lighting must provide a minimum of 1 foot-candle (11 lux) at the walking surface level.
• In the event of a power supply failure, an emergency electrical system shall automatically illuminate the means of egress.

Exit signs must be illuminated, readily visible, and maintained in accordance with the fire code. The signs must be placed so that no point in an exit access corridor is more than 100 feet from the nearest visible exit sign.

Fire-Resistance-Rated Construction

Egress paths often rely on fire-resistance-rated construction to protect occupants as they exit. Corridors and stairwells in multi-family dwellings are typically required to have a 1-hour or 2-hour fire-resistance rating, depending on the construction type and occupancy.

• Penetrations through fire-rated walls must be properly sealed with approved firestop systems.
• Property maintenance inspectors must check for unapproved alterations, such as HVAC ducts penetrating a rated corridor wall without fire dampers, or holes left by plumbers and electricians.

Inspector Enforcement Procedures

When a code official identifies egress violations, they must issue a notice of violation. Due to the severe life-safety risk associated with blocked or inadequate egress, these violations often carry shorter compliance deadlines. If an egress path is completely blocked or locked from the outside in a way that creates an imminent hazard, the code official has the authority to order the immediate evacuation of the structure until the hazard is abated.

In conclusion, understanding the dimensions, hardware requirements, and maintenance standards for means of egress is a fundamental skill for any property maintenance inspector. Evaluating EEROs, checking locking mechanisms, and ensuring fire-resistance-rated construction remains intact are critical daily tasks.