A soffit is the underside of a building element, typically found beneath the eaves of a roof. It serves both functional and aesthetic purposes, helping to ventilate the attic space while also providing a finished look to the exterior of a home. Soffits can be made from various materials, including wood, vinyl, and aluminum. In addition to ventilation, soffits can help protect the rafters and other structural components from moisture and pests. Proper installation and maintenance of soffits are essential to ensure they effectively contribute to the overall health and appearance of a building.