In wind design discussions, which topic is commonly addressed in relation to exposure?

• A. Drainage calculations
• B. Exposure categories
• C. Material properties
• D. Electrical bonding

Answer: (D)

Exposure in wind design is about how the surrounding environment influences wind pressures on a building. To capture this effect, designers use exposure categories that describe the type of terrain, obstructions, and openness around the site, because these factors change wind speed and turbulence at the building height and thus the design loads.

So the topic most often addressed in relation to exposure is the exposure categorization itself, since it directly governs the wind pressures used in calculations. The other areas—drainage calculations, material properties, and electrical bonding—are important for their respective purposes (water management, structural/material performance, and electrical safety), but they do not define how wind exposure modifies loading on the structure.