Stairwell Egress
Path Marking.
Stairwells fill with smoke before any other space in an evacuation. Photoluminescent step edge markings, handrail identification, and landing strips keep the evacuation path visible at ground level where occupants are moving — and where emergency lighting fails first.
The Path Every Occupant Takes Is the First Place Visibility Fails
In a high-rise or mid-rise building fire, the stairwell is both the primary evacuation route and one of the first spaces to accumulate smoke. Occupants moving downward in a smoke-filled stairwell are typically crouching or moving at low level, below the visibility horizon of wall-mounted exit signs and above-door illuminated fixtures. Traditional emergency lighting is positioned for standing-height visibility and provides limited guidance at the levels where evacuating occupants actually are.
Photoluminescent egress path markings address this gap directly. Step edge and nosing markings make each stair tread visible in total darkness. Handrail markings allow occupants to locate and follow the rail by touch and sight even in zero-visibility smoke conditions. Floor-level landing identification strips orient occupants to their position in the stairwell and confirm that they are on a landing rather than a continuing stair run. Together, these markings create a continuous visual pathway from any point in the stairwell to the exit at ground level.
IBC Section 1025 requires photoluminescent egress path markings in the exit stairways of buildings above a specified height. We design and install compliant stairwell marking systems for new construction and for existing buildings completing compliance upgrades, and we provide the inspection documentation required to demonstrate continued compliance after installation.
What Stairwell Markings Accomplish
Every Element of a Compliant Stairwell Marking System
A complete stairwell egress marking installation covers every point where occupants need orientation or guidance during low-visibility evacuation.
Step Edge & Nosing Markings
Photoluminescent strips applied to the leading edge of every stair tread define each step in complete darkness. Step edge markings are the most critical component of stairwell egress systems — they prevent trips and falls on stairs that would otherwise be invisible and allow occupants to descend at a controlled pace rather than groping for the next tread. IBC Section 1025 specifies the minimum width, luminance, and coverage requirements for compliant step edge markings.
Handrail & Guardrail Markings
Continuous photoluminescent strips applied to handrails and guardrails allow occupants to locate and follow the rail by sight in low-visibility conditions. In smoke-filled stairwells where occupants may not be able to see the handrail clearly, the glowing marking makes the rail immediately identifiable by its position and by touch confirmation. Handrail markings also define the boundary between the stair run and the open drop on the guardrail side.
Landing & Floor Level Identification
Floor-level identification strips on stairwell landings orient evacuating occupants to their current floor and confirm that they have reached a landing rather than a continuing stair run. In multi-story buildings, disoriented occupants sometimes pass ground floor exits without recognizing them. Landing identification combined with directional arrows at exit doors prevents occupants from descending past the exit level into below-grade spaces with no egress.
Stairwell Door Frame Markings
Photoluminescent markings on stairwell door frames — particularly on the pull side of exit doors — make exit doors visible in smoke conditions. An occupant who has descended to the correct floor may not be able to see the door clearly if smoke has accumulated in the landing area. Door frame markings define the exit opening and allow occupants to identify and operate the door without needing to see the door surface itself.
Obstruction & Hazard Markings
Any obstruction in a stairwell — standpipe connections, valve assemblies, protruding equipment, or low-clearance areas — that could cause injury during a low-visibility evacuation is marked with photoluminescent hazard tape. These markings alert evacuating occupants to the presence of an obstacle at a level where they can react and navigate around it rather than contacting it unexpectedly in the dark.
IBC Section 1025 Compliant Installation
Every component of our stairwell marking systems is installed to meet IBC Section 1025 requirements for photoluminescent egress path marking, including minimum luminance levels, minimum marking widths, required coverage positions, and charging requirements. We provide installation documentation and can support the authority having jurisdiction review process for projects requiring AHJ approval of the completed installation.
Not sure whether your building requires stairwell photoluminescent markings? We can assess your building's height and occupancy classification and advise on compliance requirements.
What IBC Section 1025 Requires and Why
IBC Section 1025 establishes specific performance and placement requirements for photoluminescent egress path markings in exit stairways. These are the key requirements and the reasoning behind each one.
| Requirement | What the Code Specifies | The Reason Behind It |
|---|---|---|
| Step Edge Coverage | Photoluminescent marking on the leading edge (nosing) of every stair tread, minimum 1 inch wide, covering the full tread width | Each tread must be individually identifiable in complete darkness — partial coverage leaves steps that are invisible and creates a trip hazard in the same space where occupants are moving fastest |
| Handrail Marking | Continuous marking on the top or side surface of handrails and on the top rail of guardrails throughout the stairwell | Continuous marking allows occupants to track the rail position by sight without needing to reach for it — particularly important when handrails pass through smoke-obstructed areas |
| Landing Identification | Floor identification markings at each landing, including floor number identification and directional arrows at exit discharge doors | Without floor identification, occupants in multi-story evacuations may not recognize when they have reached the exit discharge floor and may continue descending past the exit |
| Luminance Performance | Minimum luminance of 0.06 foot-lamberts after 90 minutes of darkness, following a 60-minute charge under specified illumination conditions | The 90-minute performance standard corresponds to the duration of extended evacuation and fire department operations — markings must remain visible for the full operational period, not just initial evacuation |
| Charging Conditions | Markings must be capable of reaching specified luminance levels when charged under ambient lighting conditions present in the stairwell | Stairwell ambient lighting is typically lower than occupied floor lighting — materials must perform to specification under actual stairwell conditions, not laboratory charging conditions |
| Building Height Trigger | Required in exit stairways of buildings with occupied floors more than 75 feet above the lowest level of fire department vehicle access | High-rise buildings present extended evacuation scenarios where battery-powered emergency lighting may be exhausted before full evacuation is complete — passive photoluminescent marking provides independent, long-duration guidance |
From Compliance Assessment to Documented Installation
Every stairwell marking project begins with a code-specific assessment of the building and ends with documented installation records for the authority having jurisdiction.
Compliance Assessment
We assess the building's height, occupancy classification, and existing egress marking condition against IBC Section 1025 requirements. Every stairwell is surveyed and a gap assessment identifies exactly what is missing and what must be added to achieve compliance.
Marking System Design
We specify the appropriate photoluminescent materials for each component type — step edges, handrails, landing identification, and door frames — and design the complete marking layout for each stairwell, including obstruction markings and any building-specific conditions.
Installation
Materials are applied to each specified position using manufacturer-specified surface preparation and adhesion methods. Step edge markings are cut to the correct width and length for each tread. Handrail strips are applied continuously without gaps. Each landing is marked and labeled correctly.
Documentation & Inspection
A complete installation record is produced documenting every marked position, material used, and installation date for each stairwell. Luminance performance is verified and documentation is provided to support AHJ review and annual inspection requirements.
Occupants Who Can Find the Exit Even When Everything Else Fails
Photoluminescent stairwell markings are one of the few life safety systems that become more effective as conditions deteriorate. They require no power, no maintenance activation, and no operational response — they work when power is gone, emergency lighting has failed, and smoke has filled the space.
Visibility at Ground Level Where It Counts
Markings at step edge, handrail, and floor level guide occupants where they are actually moving during evacuation. In smoke conditions, where visibility at 6 feet may be near zero while floor-level visibility is somewhat better, low-level markings are the primary navigation tool available to evacuating occupants.
Hours of Glow After Power Loss
High-quality photoluminescent materials charged under typical stairwell ambient lighting maintain visible luminance for substantially longer than battery-powered emergency lighting — which is designed for 90-minute minimum operation but may fail sooner in real conditions. Photoluminescent markings have no battery to drain and continue to provide guidance for the full duration of the emergency.
No Maintenance or Battery Replacement
Unlike battery-powered exit signs and emergency lighting, photoluminescent markings have no components to replace, no batteries to test, and no electrical connections to maintain. The maintenance requirement is periodic visual inspection to confirm that markings have not been damaged, painted over, or obscured — a substantially lower ongoing cost than equivalent electrical life safety systems.
IBC Compliance Documented and Defensible
A documented installation record that covers every marked component, the materials used, and the installation date provides the evidentiary basis for AHJ approval and supports annual inspection compliance. Compliance without documentation is not compliance — it is an unverifiable claim.
Retrofit Without Electrical Work
Photoluminescent stairwell markings require no electrical rough-in, no conduit, no circuit capacity, and no electrical permit in most jurisdictions. They can be installed in occupied buildings with minimal disruption and no coordination with electrical contractors — making compliance achievable in existing buildings without major construction.
Occupant Confidence During Evacuation
Occupants who can see where they are going move faster, fall less, and make better decisions during evacuation. Visible step edges, a glowing handrail, and marked exits reduce the panic response that causes falls and blockages in stairwells — which are the most common sources of evacuation injuries in high-rise buildings.
Where Stairwell Egress Marking Programs Fall Short
Most stairwell marking deficiencies we encounter during gap assessments fall into the same categories. These are the problems that leave buildings technically non-compliant or practically ineffective despite having some marking installed.
Incomplete Step Edge Coverage
Step edge markings that cover only a portion of the tread width, that skip certain steps, or that have been damaged and not replaced leave individual steps unmarked. A single unmarked step in a low-visibility evacuation is a trip hazard that negates the guidance value of all the markings around it. IBC 1025 requires continuous coverage of every tread — selective or partial installation does not satisfy the requirement.
Markings Painted or Covered During Renovation
Stairwell renovation work commonly involves repainting surfaces, and photoluminescent markings are frequently painted over during this process. A single coat of paint completely eliminates a photoluminescent marking's ability to charge and glow. Buildings that have undergone renovation since original compliance installation may have markings that appear intact but are functionally inert because they have been painted over.
Missing Handrail or Landing Identification Markings
Step edge markings are the most visible component and are often installed without the companion handrail and landing identification markings that complete the system. A stairwell with marked treads but no handrail markings and no floor identification gives occupants tread-level guidance while leaving them unable to orient themselves on the rail or identify which floor they have reached — which is particularly dangerous in buildings where the exit discharge is not at grade level.
Materials That Do Not Meet Luminance Standards
Not all photoluminescent materials perform equally. Low-cost markings that appear visible immediately after charging may fall below the IBC minimum luminance threshold within the first hour of darkness — long before the evacuation and emergency response period is over. Material selection for stairwell egress marking should be based on tested and listed luminance performance data, not on appearance during a pre-power-loss walk-through.
No Inspection Program After Installation
IBC compliance requires not just installation but ongoing maintenance to confirm that markings remain in the condition required to perform their life safety function. Buildings that installed markings at original construction or compliance deadline but have never performed an inspection since may have undetected damage, paint overspray, or marking removal that has created unaddressed gaps in coverage — gaps that are invisible during normal operations and critical during an actual emergency.
Not sure whether your stairwell markings are still compliant? We perform compliance gap assessments and produce written reports documenting every deficiency.
Stairwell Markings Installed to Code and Documented to Prove It
We install photoluminescent stairwell marking systems for new construction and compliance retrofits, and we produce the documentation that supports AHJ review and annual inspection requirements.
Code-Specific Assessment Before Every Project
We assess every building against current IBC Section 1025 requirements before specifying materials or beginning installation. Gap assessment identifies exactly what is missing and what must be corrected — not just what a quick visual inspection suggests.
Listed, Performance-Tested Materials
We specify UL-listed photoluminescent materials with documented luminance performance data that demonstrates compliance with IBC minimum standards. The products we install are selected for real-world stairwell charging conditions, not laboratory testing scenarios.
Complete Installation Documentation
We produce a written record of every marked component, the material applied, and the installation date for each stairwell. This documentation supports AHJ review, satisfies annual inspection requirements, and provides the defensible record that buildings need when compliance is questioned.
Retrofit Capability in Occupied Buildings
Most stairwell marking installations can be completed in occupied buildings during normal business hours with minimal disruption. No electrical work, no major construction, and no building shutdown required — we schedule and sequence work to minimize impact on building operations.
20+ Years Across Florida
We have installed photoluminescent egress marking systems in commercial buildings, high-rises, and institutional facilities across Miami-Dade, Broward, and throughout Florida. We understand the local AHJ requirements and the practical installation conditions in South Florida buildings.
Certified, Licensed & Trusted
Frequently Asked Questions
What building owners and facility managers ask us most about stairwell photoluminescent egress path marking.
IBC Section 1025 requires photoluminescent egress path markings in the exit stairways of buildings with occupied floors more than 75 feet above the lowest level of fire department vehicle access. This threshold captures most commercial high-rise buildings. Local amendments and the adopted code edition in your jurisdiction may modify this threshold, and the Florida Building Code may have specific provisions that differ from the base IBC. We assess your building against the applicable code and advise on whether installation is required, recommended, or both.
IBC Section 1025 requires markings to maintain a minimum luminance of 0.06 foot-lamberts for at least 90 minutes after a 60-minute charge under specified lighting conditions. High-quality listed photoluminescent materials significantly exceed this minimum — many maintain visible luminance for several hours. The actual glow duration depends on the material's quality, the intensity and duration of the ambient charging light, and the darkness level of the space. We specify materials with tested performance data that demonstrates compliance with the IBC minimum and provides meaningful real-world guidance beyond the minimum period.
Yes. Photoluminescent stairwell marking installation does not require electrical work, structural modification, or shutdown of building systems. The primary installation consideration in an occupied building is managing pedestrian traffic through stairwells during installation — typically handled by coordinating with building management to sequence installation floor by floor and by maintaining at least one clear stairwell for occupant use at all times. Most installations can be completed during normal business hours with minimal impact on building operations.
Annual inspection is the standard interval for photoluminescent egress marking systems. Inspections verify that all markings are present, intact, not painted or obscured, and capable of charging to the required luminance level. In buildings with active renovation programs or frequent stairwell painting, semi-annual inspection may be appropriate to catch damage from construction activities before it creates a compliance gap. We provide annual inspection services with written reports documenting the condition of every marked component.
A single coat of standard paint completely blocks the photoluminescent material's ability to absorb ambient light and glow. Markings that have been painted over are functionally non-compliant even if they appear physically intact. Paint cannot be removed from photoluminescent tape without damaging the material, so painted-over markings must be removed and replaced entirely. We address this during renovation coordination by working with contractors and building management to document marked surfaces and ensure stairwell painting scopes explicitly exclude marking locations.
Ready for Stairwells Your Occupants Can Navigate in the Dark?
Whether you need a compliance gap assessment, a new installation, or a retrofit of an existing building, we can handle it. Tell us about your building and we will advise on what is required and what the installation involves.
- Free compliance gap assessment and consultation
- Installation documentation for AHJ review
- Response within one business day
- Serving commercial facilities statewide across Florida