A soffit is the exposed underside of a roof’s overhanging eave. It is located on the underside of the roof’s overhang and can be seen from the ground level. Soffits can be made from various materials, including wood, vinyl, aluminum, and fiber cement. They play an essential role in the ventilation of the roof, allowing air to circulate through the attic and preventing moisture buildup. Additionally, soffits can be designed with vents or perforations to help regulate temperature and reduce energy costs.