You've probably wondered what a fascia board is before, especially if you've lived in your home for many years. Fascia boards run perpendicular to the ridge of your roof. They are located at the end of the rafters and run along either side of your roofline. The purpose of the fascia is to protect the gutter from being damaged by external factors like snow and water.
The primary function of the fascia is to keep the gutter from being damaged by external factors. Fascia can also improve the style of your home by hiding the rough edges of the rafters and preventing squirrels and birds from entering your home.