A new shingle roof
The old roof comes off, the deck gets looked at while it is bare, and the new one goes on course by course from the eave up. It is the kind of job where the parts that decide how long it lasts are covered up by the end of the day.
Shingles are still the roof most houses around here want: they suit the pitches, they take a repair without a fuss, and a good one is quiet for a very long time.