Do you ever wake up and want to throw open that window and let the morning breeze blow in, but you can’t because it’s a picture window? Or maybe you do, but it’s a single slider and the breeze that comes in is only mediocre at best? If you’re craving that morning dewy air to fill your home, or maybe a cool afternoon breeze, then you need double slider windows. What is a Double Slider? Slider windows are those sleek modern windows that open horizontally. They slide on a track to open and shut. They seal firmly and tend to.