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For those of you who don’t know about it, a sash window is a kind of window comprised of movable sashes or panels. If the window is made up of several individual lights or pieces of glass held together by a frame, then it is a sash window. Quite often narrow muntins separate the panes.

A few kinds of sash windows exist. Sometimes the panels of glass slide up and down or side-to-side. Other sash windows have panels that open outward. The sliding sash windows sometimes are referred to as sliding sash, case, sash or Yorkshire light windows.

The American-style sash window is a traditional variation that has two sashes, one of which rests on top of the other within a frame. Each of these separate sashes can slide up or down within the window frame. One major benefit of this window is that the sashes can be tilted or removed for easy cleaning. There are many different configurations, models and shapes to choose from within this class of sash window.

Sash windows were first put up in England in the late 17th century. The famous Ham House located on the River Thames just outside of London is an early architectural example of a building featuring sash windows. Robert Hooke is credited with creating the sash window, although there isn’t any conclusive evidence that proves this.

Victorian- and Georgian-style homes often have sash windows. These houses usually feature a classic six-panel sash window with two sashes, each featuring three panels above and below. This is often referred to as a six-over-six panel window. The standard size of sash windows is four feet wide; however, wooden sash can fit almost any size and there is no fixed rule.

In order for sash windows to function, there is panel that is balanced through using a counter-weight made of heavy steel or another material hidden within the window frame.

Usually sash windows are made out of single glazed glass and soft wood, although sometimes double glazed glass is used.


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Sash windows are prone to more issues than other window types due to their sliding-motion operation. They require a lot of maintenance as well; however, the extra work involved is worth it since sash windows are very attractive.

Other than beautifying a home, sash windows offer some benefits that ordinary windows do not. They are more energy efficient, and they help to keep a home cool when the weather is warm outside. This is due to the design of the sash window, since it can be opened at the bottom and at the top simultaneously. The room’s warm air is allowed to escape through the top opening, while cool air coming from outdoors is allowed in through the bottom opening.

A new kind of sash window was released recently into the marketplace. They are called uPVC sash windows, and they are attractive like regular sash windows are but are much more energy efficient and don’t require as much as maintenance and painting on a regular basis.

As with anything that you do, you must not employ the very first window company you find. Make sure to get work samples and quotes from thee different companies at least before you make your final decision on which company you want to have install your new windows.

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