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A hot attic is not automatically a fan problem. It may be an intake problem, an air-sealing problem, insufficient insulation, or a roof design that limits passive airflow. The ridge vent vs powered attic fan decision should start with the attic assembly, not a preference for passive or mechanical ventilation. Each approach can work well when it is properly matched to roof geometry, net free ventilating area, climate, and the home’s actual heat and moisture load. Ridge Vent vs Powered Attic …