I wanted to be a roofer, but it was just over my head.
sorry
Lovely house!
I got a new roof this summer too. While metal roofs have some advantages, the present fibreglass shingles available are very good and look great. The "NorthWest XL 40" by
Malarkey now has an anti-fungal option (by Scotchguard) which prohibits moss. Am I going to be here in 40 years? Not likely.
I'm frequently up on the roof to clean gutters and sweep the chimney, and a metal roof would make that extremely dangerous (or impossible) as all traction is lost.