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Caution: Rooftop Obstacles

Published On : 2016-10-26

Rooftop obstacles are often overlooked. See here for when to install a Crossover.

A roof crossover system is designed to provide a safe means of access by providing a walkway to cross over any rooftop obstruction.

A roof can be dangerous when obstacles are not safely avoided or protected from workers. Obstacles found on roofs include pipes, air ducts, skylights, parapets, roof gaps or changes in the height of the roof. These obstacles are hazardous for workers or inspectors stepping over them without a safe platform or crossover bridge installed.

Every roof that is regularly accessed for maintenance or inspection must supply workers with a safe and code-compliant walkway to each necessary point of the roof. This may require guardrails around the perimeter of the building, roof hatch railing, roof top units close to the edge of the roof, caged access ladders for ascending or descending roof elevations and walkway systems with crossover bridges which provide non-slip level surfaces to every access point.

The Sentry guardrail system and Pace walkway provide an excellent option for roof top safety with crossovers installed.

 Caution: Rooftop Obstacles

See here for more images of the Markham Pan Am Centre

 

Is Your Roof To Code?

To cross over an obstacle that is 7.9” (200mm) high or higher from the roof surface, technically a crossover bridge is required.

Below are the North American regulations regarding the use of crossover systems:

Province/Country:

Use of stair:

Minimum height of obstacle to require crossover bridge:

Alberta

Private Stair

7.9” (200mm)

British Columbia

Private Stair

7.9” (200mm)

Manitoba

Private Stair

7.9” (200mm)

New Brunswick

Stairway

7.9” (200mm)

Newfoundland

Private Stair

7.9” (200mm)

Northwest Territories

Private Stair

7.9” (200mm)

Nova Scotia

Private Stair

7.9” (200mm)

Nunavut

Private Stair

7.9” (200mm)

Ontario

Service Stair

7.9” (200mm)

Prince Edward Island

Private Stair

7.9” (200mm)

Quebec

Stairway

7.9” (200mm)

Saskatchewan

Private Stair

7.9” (200mm)

Yukon

Private Stair

7.9” (200mm)

USA

Industrial Stair

9.5" (241mm)

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