Ontario Emergency Exit Signs — Building Code Requirements 2026

Emergency exit signs save lives. In Ontario, the Ontario Building Code (OBC) and the Ontario Fire Code have strict requirements for exit signage in commercial, industrial, and multi-residential buildings.

This guide covers everything building owners and property managers need to know about emergency exit sign compliance in 2026.

Where Are Exit Signs Required?

Exit signs must be installed at:

• Every exit door leading to the exterior
• Every door to an exit stairwell
• Every change of direction along an exit route
• Every floor level in an exit stairwell
• Every point where the exit path could be confusing

The rule of thumb: from any point in the building, an occupant must be able to see an exit sign that directs them to safety.

Sign Specifications (OBC Section 3.4.5)

Requirement	Standard
Colour	Green background with white text/graphics (ISO 7010) OR red with white (older standard, still accepted)
Text	"EXIT" / "SORTIE" (bilingual in many jurisdictions)
Letter Height	Minimum 150mm (6 inches)
Stroke Width	Minimum 19mm (3/4 inch)
Mounting Height	2.0m - 2.7m above floor (visible above crowds)
Visibility Distance	Must be readable from maximum travel distance to nearest exit

Illumination Requirements

Exit signs must be illuminated at all times the building is occupied:

• Internally lit: LED or fluorescent with minimum 50 cd/m² luminance
• Externally lit: Minimum 50 lux on the face of the sign
• Emergency power: Must remain lit for minimum 2 hours on battery backup when normal power fails

Modern LED exit signs use 1-5 watts versus 20-40W for older incandescent models — upgrading saves hundreds per year in electricity.

Emergency Lighting Along Exit Routes

Exit signs alone aren't enough. The exit path must also be illuminated:

• Minimum 10 lux at floor level along exit corridors
• Minimum 10 lux on stair treads
• Emergency lighting must activate within 10 seconds of power failure
• Must last minimum 2 hours on emergency power

Inspection and Maintenance Schedule

The Ontario Fire Code requires regular testing:

Frequency	Test
Monthly	Visual inspection — all exit signs illuminated, no damage
Monthly	30-second transfer test — verify battery backup activates
Annually	Full duration test — 2-hour battery test on emergency power
Annually	Professional inspection by qualified person

Related: Complete Ontario Fire Code Sign Guide

Penalties for Non-Compliance

Fire inspectors can issue:

• Compliance orders — fix within specified timeframe
• Closure orders — building cannot be occupied until fixed
• Fines: Up to $50,000 for individuals, $100,000+ for corporations under the Fire Protection and Prevention Act

Where to Get Compliant Exit Signs

Browse our safety signs collection for OBC-compliant exit signs, or contact us for a building signage assessment.

FAQ

Are green or red exit signs required in Ontario?

Ontario accepts both. Green (ISO 7010) is the international standard and increasingly preferred, but existing red signs don't need replacement.

How often must exit signs be tested?

Monthly: visual inspection + 30-second battery test. Annually: full 2-hour battery duration test + professional inspection. Document everything.

Do residential buildings need exit signs?

Single-family homes: no. Multi-residential buildings (2+ units): yes, in common areas, stairwells, and corridors.