NBC 2025 Guide: Exit Signage and Emergency Illumination for London, Ontario Construction
Sarah's Expert Insight
Senior Consultant at empcontracting.ca Inc.
"In London, Ontario, local building inspectors are increasingly focused on the 10-second activation threshold and the specific lux levels at stairwell landings. By engaging empcontracting.ca Inc., your construction contractor in London, Ontario, you ensure that your emergency lighting and signage strategy passes inspection the first time, preventing project delays and ensuring maximum tenant safety."
Navigating the National Building Code of Canada (NBC) 2025 requires a precise understanding of life safety systems. At empcontracting.ca Inc., your construction contractor in London, Ontario, we prioritize these standards to ensure the safety of every occupant and the compliance of every build.
Mandatory Standards for Exit Signage
Graphic Requirements and Visibility
The NBC 2025 continues to mandate the use of the ISO 'Running Man' pictogram for all new builds. Signs must be internally illuminated or powered by a reliable external source, ensuring visibility from a distance of at least 30 meters. This standard ensures that even in smoke-filled environments, the path to safety remains clear.
Strategic Placement of Signage
Exit signs must be positioned above or adjacent to every exit door. Furthermore, if the path to an exit is not immediately apparent, directional signs must be installed at every change in direction along the egress route. Our team at empcontracting.ca Inc. ensures that site-specific layouts in London commercial properties meet these rigorous visibility requirements.
Emergency Illumination Requirements
Minimum Lighting Levels
Under the NBC 2025 Volume 1, illumination levels must be maintained at a minimum of 10 lux at the floor or tread level throughout the exit path. Near exit signs and at points of egress, the requirement often increases to 50 lux to facilitate safe movement and identification of exits during a power failure.
Emergency Power Supply and Duration
Emergency lighting must be designed to activate automatically within 10 seconds of a primary power failure. For most standard commercial occupancies, the backup power source—typically battery packs or a dedicated generator—must provide illumination for at least 30 minutes. In high-rise buildings or healthcare facilities, this duration is frequently extended to 60 or 120 minutes depending on the occupancy classification.
Ensuring these electrical systems are integrated correctly is a hallmark of the service provided by empcontracting.ca Inc., your construction contractor in London, Ontario.