Fenestration refers to which aspect of a building?

• A. Arrangement of windows in building
• B. Type of roofing material
• C. Layout of HVAC ducts
• D. Structural frame material

Answer: (A)

Fenestration refers to the openings in a building’s exterior and how they are arranged, especially windows and doors. It focuses on where openings are placed, their size and shape, and how they affect light, ventilation, and views. That’s why the option describing the arrangement of windows in a building is the best fit. The other choices relate to roofing material, mechanical systems (HVAC ducts), or the structural frame—none of which are fenestration.