Canadian building code question

What exit sign requirements apply under the Canadian building code?

Exit signs are required at or near exits and along the path of exit access in buildings that require a fire alarm system. The signs must meet specific visibility, illumination, and colour standards. Provincial adoption and referenced standards can change the sign type, size, and performance requirements.

Exit signs are a critical wayfinding element of the means of egress. The code specifies where they must be installed, what they must look like, how they must be illuminated, and what happens during a power failure. The requirement is typically tied to the fire alarm system trigger, but some provisions apply independently. Confirm whether the building requires a fire alarm system first, then verify the exit sign scope under the applicable code.

What to check first

  • Exit signs are required at exits and along the exit access path in buildings that need a fire alarm system.
  • Sign visibility, illumination, and colour must meet referenced standards — internally illuminated and photoluminescent signs have different compliance paths.
  • Provincial adoption can require specific sign types, larger sizes, or additional signage for accessible egress routes.

Jurisdiction notes

National baseline

Start with the NBC provisions covering exit sign locations, visibility, illumination, and referenced standards for sign design and performance.

Province and edition check

Confirm whether the province adopts different referenced standards, requires specific sign types, or adds requirements for accessible egress signage.

Project-specific variables

Building classification, fire alarm requirement, exit configuration, corridor length, and whether accessible egress routes are required can all affect exit sign placement and type.

Work through it in this order

  1. Confirm the building classification and whether a fire alarm system is required.
  2. Review the NBC exit sign provisions for required locations, sign type, illumination, and visibility standards.
  3. Check provincial adoption for additional sign requirements, including accessible egress signage.
  4. Coordinate exit sign placement with emergency lighting and exit path design to ensure complete egress coverage.

Common questions

Do all buildings need exit signs?

Exit signs are required in buildings where a fire alarm system is required. Smaller buildings without a fire alarm requirement may not need exit signs, but verify the specific provisions.

Are photoluminescent exit signs acceptable?

Photoluminescent signs may be acceptable under some conditions, but the code and referenced standards set specific performance requirements. Verify provincial adoption before specifying this type.

Do exit signs need to work during a power failure?

Yes. The code requires exit signs to remain visible during power failure, either through internal illumination with battery backup, connection to emergency power, or photoluminescent performance that meets the referenced standard.