What is the standard description of pressure on a building due to wind?

• A. Low pressure on the windward side; high pressure on the leeward side
• B. Uniform pressure around the entire building
• C. High pressure on the windward side; low pressure on the leeward side
• D. No pressure difference

Answer: (C)

The wind creates a high stagnation pressure on the surface facing the wind, while the flow around the building’s sides and the leeward side leaves the surface with lower static pressure (suction). This means the standard description is high pressure on the windward side and low pressure on the leeward side. The other options don’t fit because they ignore the stagnation effect on the windward face or incorrectly suggest uniform or opposite pressure distributions.