The answer to 'soffit vs' is that soffits and fascias are two distinct components of a home's roofing system, each serving important functions. Soffits are the horizontal panels that cover the underside of a roof's overhang, while fascias are the vertical boards that run along the roof's edge and support the gutters.
Soffits provide ventilation to the attic space, helping to regulate temperature and prevent moisture buildup. Fascias, on the other hand, protect the roof's edge and provide a clean, finished look to the home's exterior. The choice between soffits and fascias depends on the specific needs and design preferences of the homeowner, as well as the local building codes and climate conditions.