Yeah anything built after 1980-ish probably has floor trusses somewhere. Never trust a truss -above or below-

Faster yes, hotter no. It's the HRR from synthetics that has changed and contributed to a greater acute (flashover) and chronic (cancer) risk to firefighters.

"All problems are leadership problems and all problems can be solved by leadership." Jocko Willink

I'm in the process of completing my Fire 1 certification, and my company was at a basement fire yesterday, and the Captain told me basement fires are tough. I looked up this video to get a better idea what he was explaining.

Great research and topic will indeed share this with my company and training division at my fire department.

Very good information. Noted and shared with the members of my department. Thanks again!

Great 3 day program for instructors looking for ideas to make their live fire program safe, fun and effective!