Which fire attack method is also known as the layman theory?

The indirect method of fire attack, often referred to as the layman theory, involves utilizing the steam produced from water applied to a fire to help extinguish it. This method is particularly effective in situations where it is unsafe for firefighters to enter the structure or when visibility is severely compromised by smoke. By applying water from a safe distance—typically through an opening such as a window or door—steam is generated, which expands and helps push the heat and smoke upward, ultimately smothering the flames.

This approach emphasizes the importance of managing the fire's conditions instead of coming directly into contact with it, which is often utilized in scenarios involving heavy smoke or structural integrity concerns. The method can help to cool the environment and improve conditions for firefighters making subsequent attacks or rescues. Understanding this technique is crucial for fire officers and crew when making decisions in challenging firefighting situations.