2024 Ontario Building Code Guide: Revolving Doors and Exit Hardware Standards
Sarah's Expert Insight
OBC Compliance Specialist
"Navigating the nuances of door hardware is critical for commercial occupancy permits in London and Oakville, as even minor deviations in opening force or latch operation can lead to failed inspections. As your construction contractor in London, Ontario, empcontracting.ca Inc. meticulously reviews these exit specifications during the framing and finishing stages to ensure every egress point is both safe and 100% OBC compliant."
Understanding OBC Section 3.4.6.15: Revolving Door Compliance
When incorporating revolving doors into modern building designs, the 2024 Ontario Building Code (OBC) sets strict safety parameters. To ensure safe egress, these doors must be collapsible and situated at least 3 meters from any stairway. Unless powered and specifically designed to collapse under pressure, a standard revolving door is restricted to an exiting capacity of 45 persons.
Safety Glazing and Powered Systems
All glass components in revolving doors must conform to CAN/CGSB-12.1 standards for safety glazing. For high-traffic commercial buildings in London, Ontario, electrically powered revolving doors offer more flexibility, provided they are designed to stop rotation and collapse without obstructing the doorway during an emergency, and include clear signage for emergency operation.
OBC Section 3.4.6.16: Door Release Hardware and Egress Safety
The safety of building occupants depends on intuitive exit hardware. Except for specific dwelling units, the OBC mandates that exit doors must be operable from the inside with a single releasing operation, requiring no keys or specialized knowledge. This is a critical focus for empcontracting.ca Inc. your construction contractor in London, Ontario.
Panic Hardware and Force Requirements
For assembly occupancies exceeding 100 persons or high-hazard industrial spaces, doors must be equipped with hardware that extends across at least half the door's width. These devices must allow the door to swing wide with minimal force. The standard requirement for most exit doors is that the latch must release and the door must open under a force of no more than 90 N.
Electromagnetic Locking Systems
In modern commercial facilities in areas like Oakville and Muskoka, electromagnetic locks are common. However, the OBC stipulates these are only permitted if they do not include mechanical latches and are integrated with the building’s fire alarm system to ensure automatic release during an emergency.
For expert guidance on your next commercial project, trust empcontracting.ca Inc. your construction contractor in London, Ontario to navigate these complex building code requirements.
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.