Traditional Sash Windows
In the United
Kingdom, sash windows are very common in old and new houses.
Originally sash windows were fitted to Victorian and Georgian
properties. Hardwood and softwood were traditionally
used to make window frames, but nowadays they are available
UPVC.
Traditional sliding sash windows were
single-glazed, but today they are available in both single and
double-glazing versions. The term "sash window" refers to a
type
of window with sliding panels, often with a weight and pulley
system for opening the sliding window panes.
The window weights are kept in a hollow area
within the window frame. The sash
weights are attached to a sash cord that is also connected to
the sliding window pane. The sash
weights in the weight and pulley mechanism are usually made of
lead, although in more recent years, certain sash weights have
been manufactured from steel.
The
sash cord is manufactured in braided cotton that has been
pre-stretched and has a gleaming finish to prevent
fraying. Some of the more
recent sash cords are constructed from polypropylene and
nylon, which have been improved to have higher abrasion
resistance.
Different types of softwoods or hardwoods can be used to make sash windows. Box sashes are often constructed of wood, most notably Mahogany, White Oak, Pine, and European Redwood. For optimum protection, sash windows should be vacuum-pressure treated with preservatives and wax resins. Wooden box sash windows should also be treated with an insecticide and fungicide to ensure that they don't become infested. This will keep wooden boring insects and wood rotting fungus away from your box sash windows, which will ensure that they survive. Usually even box sash windows manufactured from pressure treated softwood will still have hardwood used for the window sills.
Six panes of glass in each section of the sliding sash window would be typical for a Georgian sash window. Therefore ending up with a window containing a total of four panes of glass down by three panes of glass across. Sash windows and sashes come in a variety of patterns and designs to match the house, and this arrangement of window panes is not essential. Many houses in the Victorian era had bay windows with sliding box sashes installed. Oriel windows, which were also known as Dome windows, and Queen Anne windows were two other types of Victorian-era windows.
Windows are available in a variety of finishes, including stained or varnished wood, as well as gloss paint in a range of colours. Hardwood and Softwood timber framed sash windows can be stained or varnished to enhance the natural grain and colour of the timber. Before installing the top coat, windows with a painted finish should be treated with a high-quality primer or undercoat.
Replacement wooden framed box sash windows with double glazing are now available for improved energy efficiency. The homeowners may still profit from double glazing, even when the window is constructed in line with the original buildings facade and made of traditional wood. A double glazed box sash window can serve as soundproofing and thermally insulating for a period house.