What term describes the act of cutting holes in roofs or breaking out upper windows when fighting a fire?

The act of cutting holes in roofs or breaking out upper windows during firefighting is referred to as ventilation. Ventilation is essential in fire service operations because it helps to release heat, smoke, and gases from the structure, thereby improving visibility and making the environment safer for firefighters working inside. Proper ventilation can also help to prevent fire spread and reduce the likelihood of flashover, which is a rapid spread of the fire due to a sudden influx of oxygen.

By creating openings in the structure, firefighters enable a more controlled environment that allows them to effectively suppress the fire. This is crucial because it not only facilitates the firefighting efforts but also protects the lives of both firefighters and civilians by mitigating dangerous conditions created by the fire.