River Delta Firefighters perform Vertical Ventilation Training ventilating a roof to create an escape route for heat, smoke, and gases from a burning building, which improves visibility and safety for both occupants and interior crews. This is a crucial technique known as vertical ventilation, where firefighters cut large openings in the roof to allow superheated gases and smoke to escape upwards. The process helps in locating victims, preventing dangerous conditions like backdrafts and flashove