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Ventilative cooling vs. air conditioning to reduce room temperatures 🌡️ It is hard to imagine a hot summer day without turning on the air conditioner. But did you know that opening windows can give up to 12 times more airflow than mechanical ventilation? 🌬️ Opening windows increases air motion, especially with cross-ventilation or the stack effect. Even if outdoor temperatures are slightly higher, the increased airflow can make indoor temperatures feel cooler, by the cooling sensation on the skin. ◾Cross-ventilation occurs when you open windows across from each other in the same room or building, allowing air to flow through. ◾ The stack effect can be even more efficient when you open a lower façade window and a higher-placed roof window. The height difference creates a stronger upward airflow, referred to as the stack effect. As global temperatures rise, air conditioner sales are expected to double over the next 20 years, resulting in even more demand for electricity to cool our homes and buildings. To reduce energy use and help break this vicious cycle, why not utilize ventilative cooling instead?

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