So You've Bought Sash Windows Cambridge ... Now What?
How to Restore Timber Sash Windows in Cambridge
Many homes in Cambridge have sash windows with traditional designs and homeowners are proud of how they appear. Sash windows can get stuck and are difficult to open or shut. This is often due to moisture that can cause the timber to swell.
Box sash windows were historically operated by chains or cotton cords as well as weights made of lead. Modern window springs for sash windows are concealed to eliminate this issue.
1. Aesthetics
Timber sash windows, unlike PVC-u windows, which are made in imperial sizes and are modular, can be restored to their original size. This allows for the restoration of timber sash windows to meet current energy requirements and conform to conservation regulations for areas. It also offers a window with a far superior appearance than the uPVC alternatives.
Sliding sash window frames were initially only used in large buildings or public buildings. However the production became cheaper and artisans could make larger frames using more glass. At the close of the 18th century, sash windows had become the most sought-after wooden style in British homes. Sash windows were easy to operate and let light in rooms without the use of curtains.
Early windows were simple glass but by the 17th century, sash windows were becoming more decorative with coloured glazing bars and moulded mullions. These were very expensive at the time, but as glass production became more efficient and cheaper they became a part of many period houses.
In the 19th century, it became possible to create large, sturdy glasses that did not require support bars. This allowed the frame to be made larger which, in turn, provided a better view. This was an important innovation.
Another important improvement was the introduction of the double-hung sliding windows at the end of the I920s and beginning of I930s. The double-hung sliding sash was another important improvement that came into existence at the end of the I920s and beginning of the I930s.
Oak was used for older and more luxurious buildings. A split bead divides the two sashes and it is essential that it is well maintained to prevent rattles and drafts. The idler wheels, sash pulleys and sash rollers are vital for the proper operation of the window.
2. Energy efficiency
As larger and clearer sheets of glass became available, sash window began replacing hinged casements. Plate glass was set into frames made of timber, which were secured with glazing sprigs and putty was applied to both sides of the frame to ensure watertightness. This kind of glass gradually replaced the leaded light bulbs.
The introduction of sashes created the need for a greater variety of ironmongery, with the most basic fittings being brass pulleys, lead (and later cast iron) weights, sash stops shutter hinges, knobs and shutters and a variety of fasteners to hold the sashes in the right place. They were often decorated with motifs, inscriptions or engravings that identified the maker.
With regular maintenance, sash windows can be extremely energy efficient. But, if you don't maintain them, they can become draughty and let in cold air. Draughts can also result from the degeneration of putty and paint. This issue can be fixed with wood-to-timber products.
The replacement window industry relies on the perception that traditional windows are rotten and beyond economical repair, but they can be maintained with just a little care. However, repairs to these windows are costly and can cause considerable disruption to the home. To avoid this homeowners often choose to replace their windows with PVC-u windows made by one of the many "one-stop shop" installation companies. They can replace all windows in a home in one day, thereby saving time and avoiding the need for various tradesmen to coordinate. They are also available with 'energy-saving' double-glazing, which can achieve greater energy efficiency than traditional windows made of sash. However these double-glazed units are unable to replicate the section and proportions of historic timber sashes.
3. Security
Traditional windows can be secured without compromising their aesthetics. There are many types of ironmongery that are available with sash chains, mortice bolts and sash locks. They can be fitted in a way so that the window can be opened to allow ventilation and cleaning. They are usually discrete since they are made to be used in conjunction with sash windows. They can be used in conjunction with traditional sash window catches. They should be replaced with more robust versions, such as those that incorporate double screws, or sprung levers to decrease the risk of being hit with hammers.
Sash-window frames were constructed from slow-growing deal or, in the more elegant homes made of oak. When glazing bars have survived they should be kept, and, if feasible, the wood of the cill should be replaced with the same wood. PVC-u companies typically provide a one-stop shop installation service that can remove and replacing windows across a house in a day without the need to engage other tradespeople or co-ordinate various visits from a number of different suppliers.
4. Ventilation
Sash windows were introduced in the 17th Century and allowed for a significant amount of light to enter buildings. By the end of the 18th century they were altered to allow even more light into rooms and larger glass panes began to be made. The result was a more light appearance and windows with more elegance.
Sash windows were introduced that required a brand new type of ironmongery. The first pulleys were made of wood, later Victorian ones were made from brass or a combination of lead and wood and there were many kinds of shutter hinges and knobs. These ironmongery pieces should be kept clean and preserved in order to appreciate their beautiful design.
To keep them in good shape, timber windows require regular maintenance. Inattention to maintenance can result in:
sashes that no longer slide easily.
holes in the frame that allow water, which can cause damage and decay.
The putty can be soaked by water and cause decay to the frame or the cill.
Steel casement windows became popular in the I920s and I930s because they were strong and slim, and also because they were cheap and matched the trend towards healthy living. Studies have shown that softwood sash windows are as efficient as PVC-u windows and can even be more attractive.
The industry of replacement windows has made a significant effort to convince homeowners that their old windows are old, dirty, and beyond economic repair. However, many old timber windows are in good shape and with minor repairs can easily be maintained for years to come.
5. Maintenance
The traditional sash windows need regular maintenance and inspection. If you don't maintain your sash window, it could result in the sash cords breaking and the glazing bars wearing out excessively. It could also cause the paint and putty to degrade. The removal of the sashes could also result in structural movement within the frame which causes the sash to move out of alignment and in a position that it is not able to close properly. It is also possible for the sash be snagged or slammed into an open position, which can let water and draughts in the property.
The damage to timber windows is often caused by moisture penetration. This can be prevented by regular repairs, thorough painting and removing the cause of dampness. The paint can be removed to expose the soft, rotting wood. The sections that are rotting should be carefully cut out, and the affected area should be snared together or glued together by using replacements of the same nature as the rest of the timber. This method of repair increases the amount of original fabric left, and is one of the least invasive methods for treating decay of timber to timber.
A wood condenser made of resin is an alternative to traditional process of sanding or staining. It is brushed on the surface of the timber to stabilize it and protect it from further damage. upvc windows cambridge repairmywindowsanddoors is particularly useful in the treatment of pulleys and sash cords which can help stop breakage.
It is important to restore and not replace any old ironmongery such as the sash latches and stays. It can be difficult to replace these items without compromising their original design. It is also recommended that the use of modern aluminum fittings, such as chain stays and sash lifts is avoided whenever feasible as they could cause corrosion and deterioration of timber frames and sashes.
