by Andrew Brentford
Sash windows (also known as 'hung' sash-windows) have been around for about 400 years and remain the most popular window configuration to date. The name is derived from the fact that these windows contain at least one moving 'sash' in their design. The sash is the name given to the part that holds the glass panes (also called 'lights') in place.
Some hung windows contain only one movable panal (sash) but most will have two. These panels most commonly open from top to bottom (vertically) but can also be made to operate in a sideways fashion (horizontally). The glass used in these units has traditionally been single-paned but recently double-pane and even triple-pane configurations have been available. When properly installed, extra panes give better insulation and efficiency.
To make the movement operation of this type of window possible the weight of the moving panel is counter-balanced by a heavy weight concealed within the frame itself. These weights are typically made of lead, cast iron or steel. They are arranged on a pulley system using either chains, ropes or cables. When older windows of this type begin to fail it can often be traced back to a problem with this pulley/weight system as they tend to wear through age and with continued use.
Sometimes the design will include the presence of hinges which allow the window to be locked open while also being detached from the counter-weights. This will facilitate ease of cleaning and can also enable quicker escape in times of emergency. Sometimes the use of spring balances is substituted for the more common pulley and chain (or cord) system.
If both sashes are capable of moving this is known as a double-hung window (as opposed to single-hung, if only one moves). Traditionally made from wood, these units are now commonly made from other materials (including vinyl, which has become quite popular). Vinyl (PVC) windows are usually cheaper to buy than wood and are currently a widely used option for both new construction and old window replacement.
When thinking about replacing older, worn-out windows (as many owners of older homes will) with new models, a few things should be known. Most older, difficult to operate windows can be made to work like new again with some proper maintenance. That may include scraping away old paint, replacing worn or broken ropes or pulleys and doing some modern weather stripping to improve energy efficiency. This is all pretty simple stuff!
In some areas (conservation areas or in 'listed' homes) certain sash windows aren't permitted to be replaced by the newer models on the market. Here, it only makes sense to save the old windows by refurbishing them to today's higher standards. In most cases, they can be made to function the way they were designed to do.
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New Unique Article!
Title: Functionality Of The Long Popular Sash Windows
Author: Andrew Brentford
Email: nathan@ncpm247.com
Keywords: sash windows,wood windows,workshop,carpentry,construction,builders,diy,glazing,glass,windows,property,house,home,interior design
Word Count: 465
Category: Hobbies
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