The origins of the sash window are generally thought to be in England, since there the earliest examples were seen in elegant houses. Windows, designed to let in light while shutting out the elements, were formerly fixed panels or casement windows, which were hinged at the sides, pushed outward to open and pulled in and latched to close.

This style, a major innovation that differed greatly from earlier casement windows, is generally credited to a a major scientist and inventor, Robert Hooke. Hooke was an industrious man who coined the term 'cell' for the living units of biology he observed with a homemade microscope, discovered many principles of the law of gravity, designed some of London's most historic buildings, and surveyed much of London after the Great Fire of 1666. He also studied the properties of glass and invented a balance spring which allowed for the watch to be created.

It is easy to match the sash window with the interests of this industrious man, who was very influential in the rebuilding of London after the Great fire of 1666 and was also the architect of some principal buildings. This style consists of one or more movable panels, with a weight, cord, and pulley system to defy the pull of gravity, and a framework of muntins, or wooden strips, to allow small panes of glass to be united in a panel, or sash.

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.

New houses have this style of window as well, although the materials may be more modern. Either soft or hard wood is still seen in many houses, since it gives a traditional look and is a good insulator. Modern commercial buildings and cement block houses may have more informal vinyl or metal windows, often using aluminum which does not rot or corrode. Another durable material is fiberglass, which has the advantage of expanding and contracting the same as the glass panes. It is stronger than vinyl or aluminum, neither rots or corrodes, may be painted, and has a higher insulation rating than metal or plastic.

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 in England may account for its popularity in other areas which were once English colonies.

If you found this article interesting, you can get more details and information about Sash Window companies in London today! Using a Sash Window draught proofing service will enhance and improve your home fast and easy!