I’ve never found a perfect 90 degree angle in any house, and I’ve built portions of quite a few. Wood expands and contracts with the seasons.
Brick and concrete make a lot more sense.
So I know quite well what kind of maintenance is needed. We replaced the entire 6000sqm tiled roof last year, it was the original roof, 80 years old.
The maintenance needed on a brick building is fraction of what's needed on a wood building.