Best Windows for Ventilation: Casement vs Double-Hung and How to Design for Real Airflow

https://xn--pokerhnds-bcb.com/fiberglass-vs-vinyl-windows-picking-the-right-frame-for-energy-savings-and-longevity/

Why many houses fail to get the airflow they need through windows People assume a window equals ventilation. In reality, most homes have windows that look fine but do very little to move air