For owners and facility managers of high-rise buildings, compliance with the International Building Code (IBC) is not optional—it is a life-safety obligation. Among the most critical provisions affecting high-rise structures are the requirements for luminous egress path markings found in IBC Section 1024 (2009/2012 editions) and Section 1025 (2015/2018 editions).
Understanding what triggers these requirements, where markings must be installed, and how products must perform is essential to passing inspection and ensuring safe evacuation during power loss or fire conditions.
For more than 38 years, American Permalight® has supported architects, engineers, and building owners with UL-listed photoluminescent systems designed specifically to meet these code mandates.
When Do IBC Sections 1024 and 1025 Apply?
The IBC requires luminous egress path markings in high-rise buildings with occupied floors more than 75 feet above the lowest level of fire department vehicle access.
These requirements apply to occupancy classifications including:
- Group A (Assembly)
- Group B (Business)
- Group E (Educational)
- Group I (Institutional, including I-1)
- Group M (Mercantile)
- Group R-1 (Residential hotels and similar uses)
If your building meets the height threshold and occupancy criteria, luminous egress markings in stair enclosures are mandatory—not discretionary.
Why Luminous Markings Are Required
During a fire or power outage, overhead lighting systems can fail. Smoke naturally rises, often obscuring high-mounted exit signs and ceiling fixtures. Luminous egress path markings provide:
- Passive, non-electrical visibility
- Floor-level guidance beneath smoke layers
- Continuous path demarcation
- Compliance without reliance on generators or batteries
Unlike active lighting systems, photoluminescent materials require no wiring, no maintenance of electrical components, and no power source. They are charged by ambient lighting and remain visible during emergencies.
American Permalight® offers UL 1994-listed egress path systems specifically engineered to satisfy these code performance criteria.
Required Marking Locations Under IBC
IBC Sections 1024 and 1025 are highly specific about placement. Code-mandated locations include:
- Horizontal leading edge of each step
- Leading edge and perimeter of landings
- Handrails
- Perimeter demarcation lines (floor or wall mounted)
- Door hardware and door frames
- Obstacles protruding into the egress path
- Floor identification signs
Failure to install markings at any required location may result in inspection deficiencies.
American Permalight® Guide Products are engineered to address every required marking location, including:
- Stair leading edge markings
- Handrail markings
- Wall-mounted demarcations
- Door and frame markings
- Floor identification signage
Each component works as part of a unified egress system rather than as isolated products.
Performance Requirements: It’s Not Just About Glow
IBC compliance is tied directly to performance standards under UL and ASTM.
Photoluminescent materials must:
- Be charged by at least 1 footcandle (11 lux) of fluorescent or LED lighting for 60 minutes
- Achieve a minimum luminance of 30 mcd/m² at 10 minutes
- Maintain at least 5 mcd/m² at 90 minutes
Products must comply with:
- UL 1994 – Luminous Egress Path Marking Systems
- ASTM E2072 – Specification for Photoluminescent Safety Markings
- ASTM E2073 – Test Method for Photopic Luminance
All UL 1994-listed systems undergo strict certification review and annual retesting to ensure continued compliance.
American Permalight® provides UL certificates, product data sheets, and installation documentation to streamline the approval process.
UL 924 Exit Signs vs. UL 1994 Path Markings
It is important to distinguish between exit signage and path markings:
- UL 924 applies to emergency lighting and exit signs, including photoluminescent EXIT signs.
- UL 1994 applies to low-location luminous egress path marking systems.
Both may be required within the same stair enclosure. American Permalight® offers rigid PVC photoluminescent EXIT signs that are UL 924 listed for high-location and floor-proximity applications.
Unlike tritium-based self-luminous signs, these products:
- Contain no radioactive materials
- Carry no expiration date
- Require no special disposal procedures
This eliminates long-term regulatory and environmental liability.
Common Compliance Mistakes in High-Rise Buildings
Even experienced project teams sometimes overlook critical details, including:
- Installing non-listed products
- Using decorative glow materials not tested to ASTM standards
- Omitting handrail or door hardware markings
- Failing to verify lighting charge levels
- Mixing incompatible system components
Because code language references performance standards—not brand claims—documentation is essential.
As a code consulting authority with leadership involvement in ICC, UL, ASTM, and APTA committees, American Permalight® provides guidance that goes beyond product supply.
NYC Local Law Considerations
For buildings in New York City, Local Law 26 and Local Law 141 introduce additional labeling and material requirements. American Permalight® offers:
- NYC-compliant aluminum strips and nosings
- Required labeling formats
- Custom floor identification signage
Local jurisdictional amendments must always be reviewed in addition to IBC baseline requirements.
Maintenance and Inspection Readiness
Photoluminescent systems are often described as “maintenance-free,” but compliance still requires periodic inspection to ensure:
- Markings remain securely installed
- Surfaces are not painted over or obstructed
- Lighting conditions remain sufficient for charging
Unlike electrical systems, there are no batteries to replace and no lamps to test—reducing operational burden while maintaining compliance.
A Compliance-First Approach to Life Safety
IBC Sections 1024 and 1025 are not abstract regulations. They exist because history has shown that high-rise evacuations demand redundant, passive guidance systems that function even when primary power fails.
American Permalight® Guide Products are:
- UL 1994 and UL 924 listed
- Tested to ASTM E2072 and E2073
- Designed for IBC and IFC compliance
- Suitable for high-rise, healthcare, commercial, and mixed-use buildings
With nearly four decades of industry leadership, American Permalight® supports architects, building owners, and code officials with systems designed to pass inspection the first time.
To request specifications, UL certificates, or expert code guidance, contact American Permalight® at (310) 891-0924. Compliance is not just about checking a box—it is about ensuring every occupant can exit safely when visibility matters most.