Anchoring of personal fall protection equipment
Walkways, roof ladders, ridge rails, snow fences and rails around roof hatches may be used to anchor personal fall protection equipment. This is on the condition that they are installed in accordance with the installation instructions and that they have been maintained in an appropriate manner, that they have been inspected and that they are considered to be in acceptable condition.
Remember
To make sure that the installation is done according to the applicable installation instructions and that is has been maintained in an appropriate manner.
To stay on the safe side, you should perform a risk analysis before anybody goes up onto the roof.