Why Do Firefighters Cut Through the Roof?

The basic roles in a multi-company include Fire Control, Primary Search, VES, and RIC. As class 2023-2 moves through fire academy, they are learning all the skills they need to assume those roles and perform at a high level. The V in VES stands for Vent. So that's what the focus is here. What is ventilation? How does it work? Why is it important?