Which of the following is a focus area of IEQ?

• A. IAQ
• B. Exterior site design
• C. Thermal mass in walls
• D. Wind exposure

Answer: (D)

IEQ focuses on how indoor conditions support occupant health and comfort, including how outdoor air and conditions influence the inside. Wind exposure matters because the way wind blows around a building affects air movement through openings, pressure differences, and infiltration or natural ventilation. These factors directly influence indoor air quality, temperature stability, humidity, and overall comfort—all core parts of IEQ. While IAQ itself is a component of IEQ, wind exposure specifically captures how outdoor wind dynamics interact with the indoor environment. Exterior site design and thermal mass in walls relate more to the building’s overall envelope performance and energy efficiency rather than the immediate indoor environment. So wind exposure is the focus area because it ties outdoor wind behavior directly to the indoor conditions IEQ aims to optimize.