What is a soffit?

A soffit refers to a structural feature that covers the underside of an architectural element. This can be found in various areas of construction, such as under eaves, around archways, or in the space between cabinets and ceilings. Soffits are important for both aesthetic purposes and functionality; they can conceal ductwork, plumbing, and electrical wiring, as well as provide a finished appearance to the space.

The design and installation of soffits can affect ventilation and moisture control in attics and overhangs, making them a critical component in residential and commercial construction. Understanding this feature is essential for reading and interpreting architectural plans, as it influences both the visual design and practicality of a building's elements.