As of last week, the roof is done ((Not quite, there are a couple small pieces of roofing metal I still need to add to the stern end. But these are so minor, and something I only recently decided I wanted to add that I don’t really count it.))! Cutting, lifting, and drilling all of that metal has been the hardest part of the building process so far. The small margin for error was really stressful — you can’t change the position of a screw once you’ve put a hole in an expensive piece of metal. Only time will tell whether I did a good job or not, but I’ve already gotten a number of compliments from the neighbors about how it looks so that makes me happy.
One mistake I made was during installation of the metal around the skylight. I didn’t measure precisely enough, so although the metal below the skylight lined up correctly, the metal over it did not. Because of that, the ribs of the metal didn’t line up and I had to cut one of the pieces. This left a gap where water could get in below the metal, so I had to use caulking, butyl tape, and an extra piece of metal to try to mitigate the problem. Fingers crossed.
Update: OK now the roof is really, really done :-).