Engineered I-joist Failure Under Fire

This application utilizes three engineered OSB I-joist in a mock floor system. Also two layers of 7/16" OSB to simulate subfloor and finished covering. The barrel is filled with water to approximately 250lbs. and sitting on a pallet to distribute weight across the floor system. This simulates a firefighter in full ppe with hand tools crawling across the floor. From ignition to point of failure was 10:37. Stay safe! Be smart.