Sash windows have been used for many centuries to beautify the exterior of many a home. The traditional sash window consists of two wooden panels, inset with glass panes. The wooden panels are set into their frames and can move in a horizontal or vertical direction to open and close the window. Weights and springs are set into the frame and are called a Yorkshire light, making the operating of the window easier. The earliest known example of a sash window can be viewed in the Vermeer painting, dating back to 1658, called The Milk Maid.
The earliest examples of sash windows can be found in an old English home called Ham House, which dates back to the year 1670. A traditional sash window is made up of three panes set horizontally and two panes set vertically on two separate panels, creating a classic rectangular shaped window. Over the years other configurations have become acceptable as well.
The typical standard for sash windows in early Georgian and Victorian houses measured about four feet in width and they can be opened vertically as the window slides on two runners set into the frame of the window.
Metal weatherstripping was added to ensure that the window remained in its frame regardless of external weather conditions. The inserted weight was constructed of lead or steel and was perfectly balanced for easy raising and closing of any sliding sash frame. Two types of sash frames came into existence.
When referring to a single hung sash window, only one of the frames is moveable, usually vertically, while the other remains fixed in place. This arrangement allows for maximum ventilation into the interior space.
These windows are constructed with traditional materials, mostly soft woods and single or double glazed glass panes. Beautiful and stylish, they nevertheless require regular maintenance to ensure smooth operation and the integrity of the frames are maintained. Poor paintwork can result in the frames either shrinking, causing them to rattle in the wind or in the wood warping. This can lead to a poor seal and with difficulty in opening the window.
If you are willing to regularly maintain your windows they will remain beautiful and durable for years to come. They will not only add to the beauty of the exterior of your home but assist in cooling the interior due to their design. In the hot summer months if both panels are opened equidistant from the frames this allows for the hot air to escape from the room while cool air is drawn in through the bottom edge of the window.
Sash windows are windows that are beautifully designed. If you’re interested, you need to check into the sash window company. Sash window restoration London will help you with your window restoration wants.