Work zones in height require one or more accesses that can be placed inside or outside the buildings. To remain in compliance with the law, the owner or contractor shall choose the most appropriate configuration type of access.
The vertical ladders are one of the possible means of access to areas of work at height and are considered safe for access by operators. Vertical ladders may be used for very important heights to cross and can have a tilt angle of 90 ° to 75 ° maximum if necessary.
To comply with legislation, vertical ladders must comply with standard EN 14122-3.