The answer to 'difference between ridge vent' is that a ridge vent and a roof vent serve similar purposes, but they have distinct features and installation requirements. A ridge vent is a continuous vent that runs along the entire length of the roof's peak, while a roof vent is a standalone unit that is installed in a specific location on the roof.
Ridge vents are designed to provide continuous, passive ventilation by allowing hot, stale air to escape the attic space. They are installed as part of the roofing system and are often more discreet than individual roof vents. Ridge vents are generally less expensive to install than multiple roof vents, and they can help improve the overall energy efficiency of the home by reducing the load on the HVAC system.