Which strategy can significantly contribute to energy efficiency in buildings located in the Hot-Humid region?

Natural ventilation is a highly effective strategy for enhancing energy efficiency in buildings situated in Hot-Humid regions. This approach leverages the natural movement of air to cool indoor spaces, reducing reliance on mechanical cooling systems such as air conditioning, which can consume a significant amount of energy.

In Hot-Humid climates, where high temperatures and humidity levels persist, proper design can facilitate airflow through buildings. This includes strategically positioned windows, vents, and openings that allow for cross-ventilation. By enhancing air circulation, natural ventilation can help maintain comfort levels within the building without the energy costs associated with traditional cooling methods.

In contrast, while increased insulation and passive solar design can be beneficial in various climates, they may not be as impactful in Hot-Humid regions where the primary concern is controlling heat and moisture. Green roofing can provide some benefits for thermal regulation and stormwater management but may not directly address the immediate needs for cooling or humidity control. Therefore, the emphasis on natural ventilation aligns best with the climatic conditions and the goal of maximizing energy efficiency in buildings in these regions.