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.
Ham House, a beautiful old stately home located in England has the earliest known example of sash windows and dates back to 1670. A typical sash window consisted of three horizontal panels of glass set with two vertical panels of glass, creating a horizontal frame that was very typical for the period. Other configurations became widely accepted but this is still the traditional standard.
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.
A set of springs and balances and metal weatherstripping ensure that the window remains in position no matter the weather. A lead or steel weight is set into the frame to balance the weight of each window frame and to ensure that it is easy to open. In the case of a double hung sash window both frames are moveable.
The single hung versions consist of one panel that is fixed into the frame and one frame that is able to open and close, usually the bottom one. This is a great design for encouraging ventilation in the room.
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.
