Sash Window Improvement Makes Historical Improvement Accurate

| Sunday, June 12, 2011
By Peter Thompson


Sash window refurbishment may be a rather mysterious process to many people. Few people really understand what a sash window is, in fact. These window sets are commonly comprised of pairs of panels with glass panes in each. The sets may have several panes of equal number each or one large pane each. Other parts that make raising the lower panel possible are counterweights and cables of cloth, lead, or steel.

Often found in older homes, sash windows represent technology of some antiquity. They became very commonly used during the nineteenth century and were very popular in the design of Georgian and Victorian homes. However, they were used in England as early as the mid-seventeenth century, and for this reason they are often said to cast Yorkshire light.

Among the benefits that lead owners of historic properties to seek refurbishment rather than total renovation of elements such as these windows is the charm and allure that such treatments afford. Often constructed of six panes per panel of sash, these pairings are tall and broad to allow a great deal of light into houses that may have been constructed without many electrical lighting options.

People living in temperate zones find that sash sets make for cool breezes on otherwise warm days. Manipulated so that the upper panel is slightly open and the lower panel is slightly raised, these units motivate cool-air circulation. Hot air escapes through the upper panel as cool air enters through the lower panel.

Among the portions of the set most likely to need refurbishment or replacement are the weights, the cables, the wood muntins (pane separators), and the metal fittings or lock mechanisms. Very likely some panes will need replacing as well.

Although cloth and lead cables were widely used, they may be replaceable by steel cables. Lead is not ideal for a number of reasons, including the health risk it presents as it becomes worn and releases particles which may be aspirated into the air. Cloth is prone to breakage and rot.

In cases where the wood muntins need to be replaced, wood from other units may be salvaged. If this is impossible, woodworkers may be commissioned to recreate muntins that match other window units in the same residence. This will ensure that they are identical to the originals.

When metal fittings and lock mechanisms need replacing, there are many options for new ones. Modern or historical pieces may be found online, in restoration catalogs, or at hardware stores.

When glass panes require replacing, there are two main options. One is to use modern glass that may be more energy efficient but will lack some of the charm of the original panes. Another is to seek older glass. Whenever possible for those seeking vintage glass, it is a good idea to use glass from the era the house was built. Possibilities for era-specific glass include bubbly glass, wavy glass, or oily glass.

A well-refurbished window shows that the people who live within the house consider this place a home. They care about the appearance and the historical integrity. Such a place will be inviting to all who visit it.




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