Commercial rooftops: they’re all around us, accounting for nearly half a million of Canada’s buildings. Their rooftops carry risks that differ significantly to other building types due to their scale, the complexity of their equipment and how often contractors and maintenance staff are required to access them. Too often, risks associated with these elevated environments are overlooked: that’s why we’re addressing five of them, taking a close look at their implications for legal compliance, insurance and human safety.
A Risk Overlooked is a Risk Maximized
In Ontario, fall protection is governed by both the Occupational Health and Safety Act and regulations such as Ontario Regulation 213/91 for Construction Projects. These require fall protection measures when working at heights of 3 metres or more, which includes virtually all commercial rooftops. However, many risks are associated with hazards on the same level. When these risks are overlooked, they present maximum harm to the people who rely on you.
Here are five of the most commonly overlooked risks across all areas of a commercial rooftop, each with serious implications for legal compliance, insurance, and most importantly, human safety.
1. Unprotected Roof Edges
While it might seem obvious, unguarded roof edges remain one of the most neglected hazards. Unlike designated walking areas or marked paths, rooftop edges are often left open – especially in buildings constructed before modern codes were enacted. This is a common area of non-compliance, and perhaps the greatest hazard workers at height can face.
According to the Canadian Centre for Occupational Health and Safety (CCOHS), falls from height account for a significant proportion of workplace fatalities. And while the 3-metre rule exists to guide compliance, the reality is that even a fall from a lower height can be fatal depending on conditions.
Building owners often assume that restricting rooftop access is enough. But maintenance workers, HVAC contractors and solar or telecom installers still need to reach the edge. Guardrail systems, like Skyline’s modular non-penetrating guardrails, offer a compliant, non-invasive solution that protects workers without voiding roof warranties.
2. Unsafe Access Routes
Most commercial rooftops are accessed via fixed ladders, hatches, or interior stairwells. But how safe are these access points, really?
Ladders without safety cages, hatches without guardrails, or slippery stairwells can turn a routine inspection into a life-threatening hazard. According to the Infrastructure Health & Safety Association (IHSA), poorly maintained access systems are a top contributor to fall incidents in industrial settings.
A rooftop safety strategy should always begin with how someone gets onto the roof. Products like Skyline’s fixed access ladders with safety cages or roof hatch guardrails help ensure compliance with Section 14 of the Construction Regulations in Ontario, which mandates safe access and fall protection for all elevated work areas.
3. Trip Hazards from Equipment and Cabling
HVAC ducting, conduit pipes, satellite dishes, solar panels – the clutter associated with commercial rooftops is increasing year on year. But with that complexity comes a growing number of trip hazards, particularly from loose cables, uneven surfaces, and makeshift paths.
While building codes often specify load ratings and weatherproofing, few enforce standards for layout clarity or foot traffic. It’s here that rooftop walkway systems become essential – not only for fall protection, but for organizing foot traffic, clearly separating walking areas from obstacles.
Skyline’s aluminum walkway systems offer anti-slip surfaces and elevated designs that sit above water drainage points, keeping paths dry and secure: critical during Ontario’s long freeze-thaw seasons.
4. Improperly Managed Snow and Ice
Canadian winters pose a severe risk to rooftop safety. A thin sheen of ice or hidden snowdrifts near a roof edge can turn a safe area into a deadly one in seconds. Yet, snow and ice management on commercial rooftops is rarely prioritized – many owners simply expect contractors to “deal with it.”
That’s a dangerous assumption.
According to Workplace Safety and Insurance Board (WSIB) data, winter-related slips and falls account for thousands of workplace injuries every year in Ontario. Rooftops are no exception. Without designated snow removal plans or access to safety walkways, workers are at significant risk.
Solutions include elevated walkways with anti-slip surfaces, roof edge barriers, and regular snow maintenance protocols that don’t require workers to walk in unprotected zones.
5. Complacency Around Short-Term Work
Perhaps the most dangerous oversight is the belief that “it’s only a five-minute job.” When a technician pops up to check a vent or make a quick adjustment, it can seem excessive to don a harness or navigate to a designated walkway. But short-term complacency is a major driver of long-term consequences.
In Ontario, the law doesn’t distinguish between five minutes and five hours. If a worker is at risk of falling from more than 3 meters, fall protection is mandatory. The fines for failing to comply are steep – up to $1.5 million for corporations under Ontario’s OHSA – and that’s before reputational damage, liability, or insurance premium hikes are considered.
Permanent infrastructure – like guardrails, ladders, crossover bridges, and walkways – create a culture of built-in safety. It ensures that even spontaneous jobs are carried out with risk mitigation in place.
Beyond Checklists, Beyond Compliance: Protect Your People, Company and Brand
For building owners and managers in Ontario, now is the time to reassess your rooftop environment. Are the right systems in place? Are hazards clearly marked, access secure, and traffic guided? Skyline Group offers a full suite of fall protection systems that meet or exceed Canadian safety standards and we’re here to help you navigate those requirements with confidence. To get started, reach out to one of our experts or get a quick quote.
