Your roofing options depend on the pitch of your roof
It is highly recommended that all roofing projects / repairs be done by a professional roofer because of the expertise that’s required and the danger involved.
However, if you do decide to do your own repairs, it is imperative that you follow these safety precautions:
Repairs should be done on a sunny day when the roof is completely dry. A wet roof is extremely dangerous because of the slippage possibilities.
Always use safety ropes.
Use a ladder framework to provide secure anchoring.