Edge protection must be attached to all roof areas where employees are going to work.All persons involved with inspection and work on roof areas must be competent in the task(s) to be done.This can be done by using raking tubes to tie to the building.Īdditional things to consider when controlling the hazards of working on a roof: Ensure the scaffold is secured to the building to prevent overturning should someone fall from the roof and strike the guardrails. If the work performed on the roof is weatherproofing, a toe board is not required but is recommended. The top rail should be between 900mm and 1.07m above the line of the gable (slope of the roof). If employees are working below the scaffolding, the gap must also not allow objects to fall through the gap.įigure #3 : Option Two - Location of scaffold platform for edge protection (roof pitch greater than 3 in 12)Įdge protection must be provided as close as possible on the gable ends. The horizontal and vertical gaps between the work platform and the roof edge should be as small as possible, and never be large enough for a person to fall through the gap. When a roof slope exceeds 3 in 12, the potential for sliding down the roof becomes greater. The projected roof line is considered the floor and the height of the toe board, intermediate rail and top rail on the guardrail are determined from that height. The distance between the roof edge and the guardrail must be as small as possible to prevent employees from falling into the opening. To ensure the required strength and rigidity, a transversal (dogleg) brace must also be installed. Option Two – The inside post of the scaffolding must reach to the lowest edge of the roof and a guardrail is installed above the edge. The projected roof line is considered the floor of the scaffold.įigure #2 : Option One - Roof pitch up to 6 in 12 using scaffolding for fall protection
The height of the toe board, intermediate rail and top rail must be determined by projecting the roof line. The distance from the roof edge and the guardrails must be as closed as possible to prevent employees falling into the opening. To provide the required strength and rigidity, a transversal (dogleg) brace should be used. This provides a guarded roof to the employees working on the roof.
Option One: In this method, the inside vertical post is extended to the roof’s lower edge and a guardrail is installed. Note: The two options for a roof pitch of up to 6 in 12 can also be used for a pitched roof of less than or equal to 3 in 12 (see below). The guardrail must provide sufficient strength and rigidity to support an employee who may fall off a roof. The platform must be constructed to prevent employees from falling into any openings. It is possible that the roof projection intersects with a railing intended to protect the employees on the scaffolding. The toe board, intermediate rail and top rail must be installed based on the position of the platform on the scaffold. The scaffold platform can be up to one metre (1m) below the roof edge. To protect employees that may be working on the roof, the roof projection (which is the floor for the guardrail system for the employees on the roof) is used to determine the railing’s location. The vertical outside posts, along with the top rail, intermediate rails and toe board provide the foundation of the scaffold system that forms the guardrail. In all the scenarios, proper access and egress to the scaffolding and the roof must be provided.ġ. Also, when guarded scaffolding is used as the fall protection method for employees on the roof, employees are not allowed to work from the scaffolding (except for access and egress). Special Notes: Guardrails are never permitted on surfaces exceeding 6 in 12 pitch.
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