Wednesday, January 4, 2012

Discussing The Origins Of The Sash Window In England

By Jonathan Redworth


The origins of the sash window are partly obscured by time, but this type of window is known to have emerged in England in the 1670's and has remained popular ever since. Widely used in Georgian and Victorian architecture, these windows became popular in America during the Colonial period.

A sash refers to a panel of glass (or today it could be plastic) that is set as one or more panes of material into a frame which slides up and down, or side to side, to open a room to the outside or shield its interior from the weather.

Those who understand the principles of a sash window will see that many of Hooke's other studies may have contributed to his invention of a moving panel of glass that could slide up or down or sideways to open a room to the outside air. Encasing one or more sashes in a frame equipped with a weight and pulley system to keep the sash opened to a set height resulted in the attractive and convenient sash window.

One of the earliest known houses to install the innovative designs was the Ham house, an ancestral home updated in the 1670s by the Duke and Duchess of Lauderdale. This property has been owned by the National Trust since 1948 and used in many films.

Repairing these old windows is an option that many choose, since a handy homeowner with simple tools and a vast amount of patience can do the job. Others wish to retain as much of the original structure as possible when renovating an historic property. Replacement is an option as well, as many reproduction windows are manufactures out of traditional materials, and custom woodworking mills can make exact replicas of old designs.

Newer materials include soft and hard wood, vinyl, metal such as non-corroding aluminum, and fiberglass. All of these materials have variations in insulating factors (wood is best, followed by fiberglass), durability (wood will rot if not kept sealed from moisture, although proper care will extend its life practically indefinitely), and strength.

The origins of the sash window are fun to trace, as are the changes, not so much in design as in materials. Today's windows may be made of soft or hard wood, metals such as aluminum and vinyl, and even fiberglass.




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