Structural protection · Core steel concept
How does structural steel fire protection work?
Short answer
Steel loses strength as it heats. Protection systems slow that heating so the member holds its required performance for the required period. The system is selected against the member, the design requirement and the supporting evidence — not against a general idea of thickness.
What to do next
Send the tag, the schedule reference, the drawings you have and photographs of the actual condition. We will tell you what they show, what they cannot, and what else is needed before anyone gives a conclusion.
General information only. A conclusion about a specific condition requires the actual construction, the evidence behind it and the site condition to be reviewed.