In relation to the dimensions of a building, what does the term "overhang" refer to?

The term "overhang" specifically refers to the distance that a roof extends beyond the walls of a building. This architectural feature is designed to provide protection from rain and snow, help with drainage, reduce direct sunlight on walls, and create shade for windows and doors. Additionally, overhangs can have aesthetic value, contributing to the overall design of a building by creating shadow lines and visual interest.

Understanding the function and importance of an overhang is crucial in building design, as it impacts materials selection, construction methods, and overall energy efficiency. The other options listed do not pertain to the defining characteristics of an overhang, focusing instead on different aspects of a building's structure, such as wall height, foundation depth, and doorway width, which serve other purposes in construction and design.