Fascia
board is a type of roof trim that is commonly used on houses. It is mounted on the exposed ends of rafters or the top of exterior walls to create a layer between the edge of the roof and the outside. In addition to serving an aesthetic function by creating a smooth, even appearance on the edge of the roof, it also protects the roof and the interior of the house from weather damage. Not all styles of home design feature this trim, but many do. In cases where the edge of the roof is flush with the edge of the walls, the fascia board may include soffits for venting, while in other instances, soffits may be hidden under the eave, invisible behind the board. It also provides a point of attachment for the gutters of the house, along with the drain pipes, facilitating drainage from the roof and ensuring that water does not pool around the house during the rainy season.
