When using a temporary anchor point you should avoid working in fall arrest at all.
Installing temporary roof anchors.
Tips for installing roof anchors for fall protection.
In other words if your role is to be the first person up on the roof osha doesn t expect you to magically install an anchor by lobbing it up on your roof and praying for it to rain nails.
Fasten to the roof sheeting with the supplied.
They do however expect you to immediately tie off to that anchor once it is installed and to never perform any other work prior to doing so.
Once you have chosen the correct temporary anchor point to suit the type of job you are doing and also the type of roof structure you then need to design the system.
How to install ankame temporary roof anchors on a metal roof identify a position on the roof to install the roof anchor that is between 800mm to 2500mm from the edge of the roof.
It is vital that you design the location of the anchors so that you can work in fall restraint.