What defines a building's fenestration layout?

The fenestration layout of a building refers specifically to the arrangement and design of its windows and doors. This aspect is critical to architectural design because it affects the aesthetics of the building, its functionality, and its interaction with light and ventilation. Proper fenestration can contribute significantly to energy efficiency, occupant comfort, and overall building performance.

Elements such as roof pitch, color and texture, and building height do play important roles in the overall architecture, but they do not define the fenestration layout. Roof pitch pertains to the steepness of the roof, color and texture relate to surface finishes and materials, while building height concerns the vertical aspects of the structure. Each of these elements complements the design but does not inherently define the arrangement of openings in the building’s facade, which is the essence of fenestration.