The edge of my shed roof has rotted. It's a standard shingle over wood deck, about a 4/12 I'd guess, only one story. I think I just need to cut out a strip of the end of the deck and replace.
It shouldn't be hard, but there's nowhere to put a ladder. The shed is on the edge of a steep hill, more like a gully. I've got only a foot or two before it drops off sharply.
This must be a common problem with an obvious solution but I'm not seeing it. I can get up from the other side but I'm not confident I can work head down like a bat.
How is this usually done?