The casement double window is a modern and energy-saving style which blends traditional beauty with contemporary function. Formed by a pair of overlapped sashes, it performs magnificently in terms of keeping warmth in and rain out. Getting air in and out, keeping the bad guys away, saving energy are the chief functions of the casement double window. That dictatorial casement window we knew is no more. Every window is now democratic--able to let in enough outside light to illuminate the lives of the people living in them, while keeping a modern door-like feel. Modern features such as double-glazing, fully weather-stripped sash frames and central locking give the casement double window a level of performance normally associated with far more expensive products. It is perfect for new construction and remodelling jobs, especially in places where energy savings are essential. They can be applied to all sorts of rooms as well, from living rooms to bedrooms or any space where you want an unrestricted view.