Sash windows are movable glass panels, which form a frame of glass, separated by lights or panes by narrow bars. This is a type of glazing where panels are opened in a vertical sliding fashion. The horizontally sliding for are known as “Yorkshire lights”.
The designs of these windows date back to the 1600′s when it was invented by Robert Hooke, English inventor and scientist. The older examples of sash windows were installed at places such as Ham House in the 1670′s in England. This type of window design is often found in Georgian and Victorian homes. The classic style consists of three lights across and two up on each sash. This results in a six over six panel. This may however vary.
The standard length of sashes in the U. K is four feet wide or 1.2 m. The older units that were hand made could be any size. They have upper & lower sashes that are created within the side jambs and slide in vertically. These grooves can be made of metal weather strips.
Due to the fact that half the entire window area is opened, maximum ventilation is possible. Weather stripping, springs and balances are what hold it in place. The window balances due to lead, cast iron or heavy metal, this is what causes the window to operate. Spring balances can also be used.
A sash chain or cord runs over a pulley at the frame’s top and is connected to the weight. However manufacturers also use spring balances . Simplex hinges are sometimes used to lock the window on one side and leaving the other side unattached. This allows the window to be opened if needed.
Americans refer to these as hung sash window frames and they are normally hung double with 2 sashes. This permits an upward and downward movement within the frame. In single frames, there are 2 sashes and the top one is fixed. The sash at the bottom is able to slide down and up. If the window is very high then they use quadruple sashes. In America these windows are usually glazed and made from soft wood.
Because it is made of wood, distortion, swelling and rotting of the wood can take place in Sash windows. The wood will often also shrink. These windows need to be well looked after, but this is worth it as the are lovely to look at and can be cleaned. The added ventilation and cooling is also and added bonus.It is for the above reasons that it is imperative that good maintenance is exercised on your sash windows.
Learn the way that sash window restoration London experts can enhance the value of your home and make it more comfortable today! When you need help with your windows, using a sash window company will allow you to take care of all issues quickly and easily.
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