Casement windows provide a better air tight seal and better sound insultion as compared to sliding windows. It minimizes leakage in the fenestration & improves temperature regulation from inside out and outside in. In hot and humid regions where temperature rises to a smothering 45°C in summer, It reduces the cooling loss through windows/doors, helping in standard use of the air conditioner and maintaining the temperature and avoiding overload and repetitive use of cooling system.