Passive cooling in buildings is a critical strategy for reducing energy consumption and enhancing thermal comfort without relying on mechanical systems. One widely used concept is natural ventilation, which leverages the movement of air to remove heat and maintain indoor comfort. In this method, the building design strategically incorporates openings such as windows, vents, and louvers to allow cross-ventilation. By positioning openings on opposite sides of rooms or along prevailing wind directions, air can flow naturally, carrying away excess heat and moisture. Stack ventilation is another approach under natural ventilation, where warmer air rises and escapes through higher openings, while cooler air enters from lower inlets, creating a continuous airflow. Proper orientation of buildings and thoughtful placement of openings are crucial to maximize this effect.