A continuous ridge vent should ideally run along the entire usable length of the main roof peak, stopping approximately twelve to twenty-four inches short of the exterior gable ends, rake edges, or hip intersections. Stopping short prevents wind-driven rain, blowing snow, and unwanted insects from entering the exposed end of the vent baffle. Maximizing the length of the ridge vent ensures uniform, balanced exhaust airflow across the entire surface area of the attic space beneath.
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