Both sashes move vertically allowing you to direct the air movement as you wish. The included screen slides up or down so that you can place it where you need it. They look great and come in a choice of colors and grid patterns if you so desire them. Of course, they are extremely energy efficient. Every homeowner gets a Lifetime warranty that even includes accidental glass breakage at no additional charge on every window that Window Man installs for them. And best of all, both sashes tilt in for easy cleaning even on the 2nd floor of your home. No wonder our customers love their Window Man windows and are constantly referring their family and friends to us.