Natural Ventilation

Cross-ventilation occurs when wind enters through openings on the windward side of a building and exits through openings on the leeward side. The pressure difference between windward (positive) and leeward (negative) facades drives airflow through the interior. For effective cross-ventilation, the floor plate should be no deeper than about five times the floor-to-ceiling height (typically 12-15 meters). Inlet and outlet openings should be offset vertically or horizontally to create a diagonal air path that sweeps across the room rather than short-circuiting directly between aligned windows.