Fire performance isn't simply the core; brace alloys, screw qualities, and coating systems all affect rankings

https://wiki-net.win/index.php/Custom-made_Copper_Cupolas:_From_Spec_to_Centuries_of_Solution

Fire efficiency isn't just the core; brace alloys, screw grades, and coating systems all impact ratings, so settings up are checked with each other for real-world conformity.