The Basics of Replacement Windows

Double Hung Windows

The Primary feature in Double Hung Windows is that both window sashes operate vertically, as compared to Single Hung Windows, where the bottom sash is the only operational section. The appearance of the Double Hung Window is stacked, so that both sashes can slide past each other. The name "Double Hung" comes from the design of both sashes being hung from ropes that are counter-balanced with weights. The glass openings in the upper and lower sash are typically of equal size. The ability to open both sashes creates cross ventilation, where the warm air exits through the top opening and the cooler air enters through the bottom opening.

Casement Windows
The primary feature in Casement Windows is that they are hinged on the sides of the frame and open from the side, usually to the exterior. Casement Windows that swing outwardly are typically the most energy efficient of window styles since the sash closes by securing firmly against the frame of the window. Another benefit of an outward opening Casement Window is that the ventilation or air passage is significantly improved due to the various angles of openings that can be obtained, thereby maximizing the ventilation. Screens are typically used on the interior of Casement Windows.

Double Sliding Windows
The primary feature in Double Sliding Windows is that it has two sashes, framed side by side and functions with both sashes sliding horizontally. Double Sliding Windows are versatile and create a viable alternative for space restrictions, where the width exceeds the height of the opening. Double Sliding Windows typically come in two panels, however they are also available with three panels. Double Sliding Windows are sometimes referred to as "Sliders" or "Gliders". Double Sliders also allow both panels to open simultaneously, creating cross ventilation.

Bay Windows
The primary feature in Bay Windows is that three or more windows are joined together, usually at 30 degree or 45 degree angles. The center section of a Bay Window is typically stationary, with either Casement Windows or Double Hung Windows on the two side panels adjoining the center window. The center section of the Bay Window can also be configured to be operational, along with the windows flanking both sides. The three dimensional effect of the Bay Window creates a unique appearance.

Bow Windows
The primary feature in Bow Windows is that four or more windows are joined and installed on a radius from wall to wall, forming a curved or "bow" effect. Bow Windows are typically used in a large window opening to maximize the daylight. Bow Windows can have all or some of the windows function to opening and closing, based on your preferences. Bow Windows make an elegant appearance and add style to any home's architecture.
 

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