Fire efficiency isn't simply the core; brace alloys, screw qualities, and finish systems all influence ratings

https://www.scribd.com/document/1039664098/Copper-Doesn-t-Lie-The-Case-for-Customized-Smokeshaft-Shrouds-and-a-100-Year-Roof-Strategy-208840

Fire efficiency isn't simply the core; bracket alloys, screw grades, and finish systems all influence scores, so assemblies are checked with each other for real-world conformity.