system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5:Why do firefighters vent roofs of structure fires, wouldn't that make the fire worse by adding oxygen to it?
gpt
When a hole is made in the roof because the building is "vented," the smoke and gases escape because heat and smoke rise. It makes it much easier for the firefighters in the building to see. It also reduces the possibilities of backdraft (explosion) and flashover.