Understanding Ontario Building Code 9.9.11: Exit Sign Requirements and Visibility Standards
Sarah's Expert Insight
OBC Compliance Specialist
"Compliance with the ISO 7010 green pictogram standards is a frequent point of inspection in multi-unit projects across London, Oakville, and Muskoka. At empcontracting.ca Inc. your construction contractor in London, Ontario, we ensure that exit signage is not only correctly placed for visibility but also integrated into a dedicated emergency power circuit to prevent costly delays during the final occupancy permit phase."
Compliance with Section 9.9.11 of the 2024 Ontario Building Code
For property owners and developers, adhering to the 2024 Building Code Compendium is essential for life safety and successful occupancy inspections. Section 9.9.11 dictates the specific requirements for exit signage and visibility in multi-unit residential and commercial structures. When you partner with empcontracting.ca Inc. your construction contractor in London, Ontario, we ensure every egress path meets these rigorous provincial standards.
9.9.11.1 & 9.9.11.2: Application and Visibility of Exits
This subsection applies to all exits with the exception of those serving a single dwelling unit or a house with a secondary suite. The code mandates that exits must be clearly visible or have their locations clearly indicated. Furthermore, if an exterior exit door is at risk of being blocked by parked vehicles or storage, a permanent sign prohibiting such obstructions must be mounted on the exterior side.
9.9.11.3: Exit Sign Design and ISO Standards
The OBC requires exit signs for buildings that are three storeys in height, have an occupant load exceeding 150, or utilize a fire escape. Modern code now mandates the use of green pictograms (the 'running man' symbol) in accordance with ISO 3864-1 and ISO 7010 standards. These signs must be visible upon approach and provide clear directional cues (left, right, or angled arrows) where necessary.
Illumination and Emergency Power Requirements
Exit signs must be continuously illuminated. Internally illuminated signs must conform to CSA C22.2 No. 141 or, if photoluminescent, CAN/ULC-S572 standards. Crucially, the electrical circuitry for these signs must be dedicated solely to emergency lighting and must be connected to an emergency power supply to ensure functionality during a power failure.
Disclaimer: This content is generated from the Ontario Building Code for educational purposes. Always consult with a licensed professional engineer or your local building department before starting any construction project in London, Ontario.