Debby. We have shingles. .always blowing off. I have seen tin roof . I think they are pretty. .my neighbor has a tin roof. .I would look up and get some review on both. .I am sure the tin is pricey. .would love it myself can't afford. It .our shingles were guaranteed twenty years. .after twenty years is over and all that sun. .you need new ones. .Good luck on your new roof. .
Debby...We like shingles...many times tin will leak around nails/screws after a while I understand.