Sliding windows are horizontal opening windows which provide great cross-ventilation and lighting options. They are easy to operate and provide unobstructed view of the outside world. They are also energy efficient, since they effectively block airflow from inside to outside and vice versa. Since, the window has 2 sliding panels, only 1 panel can be opened at a time,so, only half(50%) part will have air flowing. Sliding windows aid in saving space too as they don’t occupy vertical space as in the case of normal windows. Your room will automatically appear larger if you choose them for your house.