A joiner built that, the worst is they were replacing all the barge boards and slate right up to the ridge so they had a step ladder from the job to the apex. It was an insurance job, but I know the old boy who lives there and we have done a full scaffold over that roof more than once as he likes to get it painted every few years. My price for all singing all dancing was £1200 through a contractor, the guy who got the job was obviously £1200 cheaper without drawing breath. I always wonder though, if they cut corners like this, what others are they willing to cut.
As I said, a lot worse to deal with than rough scaffolders, although this shouldn't be an excuse.