If I'm honest it's been a while since I've done any proper roofing (besides sheds and porches) so I was quite keen when I got offered a days work giving a mate a hand to finish putting a roof on. He'd put all of the large trusses on the previous two days, but due to there being a large open plan area in the middle of the house, the central section had to be "cut on" as the large attic trusses couldn't span across this as it would close it in. This would be really difficult on your own as holding and fixing these rafters is nearly impossible without a little help.
We also added a gable over the front door and used diminishing trusses to cut it back into the main roof, this goes on faster than you'd think. Lastly we added the gable ladders so the roof can stick out past the brick work. These were really awkward to fit as we had little to stand on and ended up like a couple of monkeys working across the roof. It was the first time I'd worked with this mate and I was quite impressed with him and the amount he'd managed to do on his own the days before (he's also working with a broken wrist!)
This weeks work has not been so glamours. doing some maintenance work on a school in Sutton Coldfield replacing two rotten "beams" for a company I've not worked for before (although one of my best mates now works there - hence getting the couple of days work). In the end the job wasn't as bad as we thought as the beams were just a 3x2 frame clad in ply, it was tricky not to do any more damage to the old perspex roof but we managed it in two days when the firm we were working for had allowed quite a bit more time than that.
I think the whole lean-to should come down as the rest of it wasn't in a much better state. I really felt for this school, all the buildings were wooden and everything was rotten, you could easily kick your was through a wall if you wanted to.