1905? That’s old. Makes my bungalow from the 60’s seem modern!Bad grammar on my part; I was referring to the solar panels, not the roof. Around us, solar seems to either lose efficiency, begin breaking down, or just become uneconomical at around the 10-15 year mark. Roofs indeed should last much, much longer. Our tile roof lasted 118 years when due to many leaks we decided to take each tile off, verify the integrity of the more-than-century-old trusses, add a plywood underlayment and water barrier, furring strips, and finally put back each tile breaking as few as possible. All tiles are original to our 1905 house.
I too do not expect to be living in the home, or at all, at next roof replacement.
We did a thorough renovation 6 years ago when we moved in. Including (to bring it back on topic!), a full rewire and EV (Zappe) charging station installed. Good to see me out now. Just need to chose my spot in the back garden.