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High-rise construction is booming in Canada, with a host of skyscrapers going up from coast to coast, and the Pinnacle Tower set to become Canada’s tallest building.
While these mega projects make headlines, the baseline for what constitutes a high-rise building seems relatively unspectacular. The International Building Code (IBC) defines a high-rise as “a building with an occupied floor or occupied roof located more than 75 feet (23 metres) above the lowest level of fire department vehicle access.”
This translates to “only” six or seven storeys, yet a fall from the roof of a one-storey building can have tragic consequences. And the risks are real. High-rise construction in Canada presents demanding fall protection challenges. From steel erection and curtain wall installation to rooftop mechanical work and facade access, workers face constant exposure to unprotected edges, weather conditions, and multi-trade congestion.
This makes construction safety compliance in Canada a priority for every contractor and safety professional on the job. They must address both the regulatory parameters and real-life safety issues with a comprehensive fall protection strategy that includes “passive” and “active” fall protection measures.
Fall protection requirements for working at heights in construction across Canada are established through provincial and territorial Occupational Health and Safety (OHS) regulations, all of which require fall protection at or above 3 metres (10 feet).
These regulations are supported by CSA fall protection standards, notably the CSA Z259 series. CSAZ259.16-2021 governs the design, performance, and use of active fall protection equipment, including anchors, lifelines, and lanyards. Active systems require a worker to be trained and follow standards for inspection, donning, connecting, and using the equipment.
Counterweight guardrail systems construction, a form of fall protection that leverages mass and friction without needing to be attached to a structure, is covered by CSA Z259-18:19. Guardrails are passive or “collective” fall protection because they safeguard multiple workers without relying on training, special equipment, or worker behaviour.
Provinces and territories also have specific regulations for construction. For example, Ontario O. Reg. 213/91 sets out specific construction site requirements that contractors must follow.
The Canadian Centre for Occupational Health & Safety “Hierarchy of Control” places passive systems above fall arrest systems in Canada. Where workers are exposed to open edges, guardrail systems should be 900 to 1100 mm (35-1/2 to 43-1/4 inches) tall and withstand a load force of 890 N.
For rooftop and elevated perimeter applications, freestanding guardrail systems require no welding or drilling and are installed without penetrating the roof. Constructed of robust, durable, corrosion-resistant aluminum or galvanized steel, they feature a modular design that can be configured to suit complex rooflines.
For rooftop access points, roof hatch railing kits clamp to hatches and feature a self-closing safety gate that automatically closes and latches behind the worker passing through. Hence, an open hatch is surrounded by a compliant safety railing system.
Where guardrails are not practical or in place, horizontal lifeline systems for Canadian construction sites enable workers to advance beyond protected zones to perform ironwork, decking, cladding installation, or facade work. They feature:
Anchorages are the backbone of lifeline systems, and they must be engineered and rated to withstand the forces generated by a fall arrest event as specified by national, provincial, and territorial regulations, including CSA Z259.15.
Their selection also must match the task, its duration, and the roof substrate.
Even with guardrails and fall arrest lifelines, rooftop safety systems in Canada can be bolstered with anti-slip walking-working surfaces for rooftop navigation and access to elevated equipment.
Safer and more efficient than ladders, work access platforms combine an ergonomic workstation with compliant fall protection for workers during complex, high-rise construction tasks. They incorporate anti-slip roof walkway treads, secure, stable bases and frames, and integrated guardrails.
Rooftop safety systems for Canada’s high-rise construction needs require an understanding of how a multi-trade environment can share the same elevated working areas safely. Construction fall protection systems should be selected and installed in proper sequence during the pre-construction planning stage—not improvised on site. By planning protection before work begins, contractors reduce risk, improve productivity, and ensure construction safety compliance from breaking ground to cutting the ribbon.
Falls, slips, and trips are one of the leading causes of injuries and deaths on construction sites. But there are key strategies companies can implement to reduce the risk of these types of incidents.