Preventing Deaths & Injuries of Firefighters Working Above Fire-Damaged Floors

Firefighters are at risk of falling through fire-damaged floors. Fire burning underneath floors can significantly degrade the floor system with little indication to firefighters working above. Floors can fail within minutes of fire exposure, and new construction technology such as engineered wood floor joists may fail sooner than traditional construction methods. NIOSH recommends that firefighters use extreme caution when entering any structure that may have fire burning beneath the floor.