Does roof pitch affect the performance of the external baffle; ridge vent?
A. The external baffle on the ridge vent performs the same (airflow enhancement and weather protection) regardless of the roof pitch because the external baffle is always perpendicular to the roof regardless of the roof pitch. The wind generally will hit a house and run up the roof parallel with the slope (roof pitch), hit the external baffle — which is perpendicular — and be deflected up and over the external baffle, then over the ridge.