The answer to 'difference between roof vent' is that there are two main types of roof vents: static vents and powered vents. Static vents are passive ventilation systems that rely on natural airflow to remove hot air and moisture from the attic, while powered vents use an electric fan to actively draw air out of the attic.
Static vents are generally less expensive to install and maintain, but they may not be as effective in hot, humid climates or in homes with complex roof designs. Powered vents, on the other hand, can provide more consistent and effective ventilation, but they require an electrical connection and ongoing energy costs to operate the fan.