Which component is included in the exterior shell of a Revit model?

The exterior shell of a Revit model includes all necessary components that contribute to the building's outer structure. This not only encompasses walls, which serve as the primary vertical elements enclosing the building, but also includes windows and doors that are integral to its façade. Windows provide natural light and ventilation, while doors facilitate access in and out of the building. Each of these elements plays a crucial role in defining the exterior appearance and functionality of the structure. By assembling a complete exterior shell with walls, windows, and doors, Revit allows designers to create a comprehensive representation of how the building will look and perform in the real world. This holistic approach is essential for accurate modeling and effective design, as it ensures all aspects of the building envelope are considered together.