A Soffit is the term used for the underside of any part of a building.
More commonly however, the term Soffit refers to the section under the eaves on the external wall of the house.
The Soffit runs from the external wall of the house to the outer edge of the eave sealing the gap between the two. .
Soffits are vulnerable to a variety of factors, weathering being the main problem.
A Home Buyers Survey will pick up any issues with Soffits. Replacement of Soffits is not complicated or expensive but the Surveyors advice should be followed as if left further problems can arise.