5 Killer Quora Answers On Sash Windows Cambridge

How to Restore Timber Sash Windows in Cambridge

Many homes in Cambridge feature traditional sash window and homeowners are proud of their appearance. Sash windows can become stuck and are difficult to open or shut. This is usually due to moisture that can cause the wood to swell.

Box sash windows were previously operated by chains or cotton cords, as well as weights made of lead. Modern window springs for sash windows are concealed to avoid this issue.

1. Aesthetics

Timber sash windows, in contrast to PVC-u windows that are made in imperial sizes, which are modular, are able to be restored to their original size. This permits the re-installation of timber sash windows in order to meet current energy requirements and comply with conservation area regulations. It also comes with a window that is far superior to uPVC options.

Sliding windows with sash were initially only used in large buildings or public buildings. However this changed as production became more affordable and artisans could create larger frames using larger glass. By the late 18th century windows made of sash were the predominant design of wood in the majority of British properties. Sash windows were easy to operate and allowed light to enter rooms without the need for curtains.

Early windows were simple glass but by the 17th century, sash windows were becoming more attractive with coloured glass bars and moulded mullions. They were expensive at the time but as glass production improved and cheaper they became a part of numerous period houses.

In the 19th century it was possible to manufacture large, strong glass that didn't require supporting bars. This allowed the frame to be enlarged which, in turn, provided the viewer a better view. This was a very important improvement.

Another significant improvement was the introduction of the double-hung sliding window at the end of I920s and at the beginning of I930s. This allowed both the upper and lower sash to be opened simultaneously and allowed for better ventilation to the building.

The most popular type of sash is made from slow-growing deal (pine) but oak was utilized in more prestigious buildings and in some earlier examples. It is essential to keep the parting bead that is used to separate the sashes. This will help prevent draughts and rattles. The sash pulleys, idler wheels and sash rollers also are vital for the proper operation of the window.

2. Energy efficiency

As larger and clearer glass sheets became available, sash window started replacing hinged casements. Plate glass was set into rebated timber frames, pinned with glazing sprigs and putty was then sprayed onto the frame's sides for watertightness. This kind of glass gradually replaced leaded lights.

Sashes were introduced, which led to increased demand for ironmongery. The basic fittings included brass pulleys (and later cast-iron) weights as well as sash stoppers shutter hinges and handles as well as a variety of fasteners to secure the sashes. These were often decorated in motifs, inscriptions, and engravings to identify the maker.

With regular maintenance, sash windows can be extremely energy efficient. If they are not maintained, they can become noisy. Draughts can also result from the degeneration of paint and putty. This can be fixed by making use of wood-to-timber repair tools that are proprietary.

The market for replacement windows is based heavily on the belief that old windows are beyond repair and therefore cannot be maintained economically. However they can be maintained with a little attention. However, repairs to these windows are costly and can cause considerable disruption to the home. Many homeowners choose to replace their windows using PVC-u from a huge "one-stop shop" installation company. They can replace all windows in a home in a single day, saving time and avoiding the need for various tradesmen to coordinate. These windows can be equipped with energy-saving double glazing to get higher energy ratings than the traditional sash window. However, these double-glazed units cannot reproduce the proportions and section of traditional timber sashes.

3. Security

Traditional windows can be made more secure without compromising their aesthetics. Many types of ironmongery can be fitted including sash chains mortice bolts, and sash locks. They can be positioned in such a way that the window can be open for ventilation and cleaning. These windows are typically unobtrusive as they are designed to be used in conjunction with sash windows. They can be utilized in conjunction with traditional sash window catches, which are required to be replaced with more robust models (such ones that have double screws) or sprung levers to reduce the chance of them being hammered open.

Sash-window frames are typically constructed from oak or slow-grown deal. Where glazing bars have survived they should be kept and if it is feasible, the wood of the cill should be replaced by identical wood. Many PVC-U firms offer a one-stop installation service. They can take out and replace windows on an entire home in a single day, without the need to involve other tradespeople.

4. Ventilation

When sash windows were first introduced in the 17th century they allowed a substantial amount of light to flood into structures. In the 18th century, they were modified to allow more light could be let into the rooms. Larger glass panes were also made. The result was a lighter look and windows with more elegance.

Sash windows were introduced that required a brand new range ironmongery. Early pulleys could be made out of wood. Later Victorian ones were made of brass or a mixture of leaded and wood. There were also a variety of types of shutter hinges and knobs. These ironmongery elements should always be maintained and cleaned so that the quality of their design can be appreciated.

To keep them in good condition, timber windows must be maintained. A lack of regular attention can lead to:

Sashes that do not move effortlessly.

Holes in the frame that allow water to get in and cause decay and damage.

Water can penetrate the putty and cause decay to the frame or cause cill.

Steel casement windows gained popularity in the I920s & I930s because they were strong and slim, cheap and matched the trend of healthy living. However, research has revealed that traditional softwood sash windows can be just as efficient thermally as double-glazed PVC-u windows and can be more attractive than the sleek lines of modern casement windows.

The industry of replacement windows has done a lot to persuade house owners that their windows are dirty, noisy and beyond economic repair. However,  double glazing cambridge RepairMyWindowsAndDoors  made of timber are in good condition and, with minor repairs, could easily be maintained for years to be.

5. Maintenance

Traditional sash windows require regular maintenance and inspection. Inability to maintain it properly can lead to sash cords breaking, excessive wear on the glazing bars and the deterioration of putty and paint. The removal of sashes can also cause structural movement in the frame, causing the sash not to close properly. It is also possible for the sash to be snagged or slammed into an open position and this can let water and draughts in the structure.

Moisture penetration is the most common cause of damage to windows made of timber. This can be avoided by careful painting, regular repairs, and removing the source of dampness. Wet rot is easily identified by the wavy appearance of the existing paint which can be removed to reveal soft, rotting timber. The sections that are rotting must be removed with care and the affected part should be snared together or pieced together by using replacements of the same kind as the timber that remains. This method of repair maximises the amount of original fabric left, and is one of the least invasive ways of treating decay caused by timber.

A wood condenser made of resin is a viable alternative to traditional sanding or staining. This is brushed onto the surface of the wood to stabilize it and shield it from further damage. It is particularly useful in the treatment of sash cords and pulleys where it can help to stop breakage.

It is essential to preserve and not replace any old ironmongery, such as sash latches and stays. It is difficult to replace these items without compromising their original design. It is also advised that fittings made of aluminum like sashlifts, as well as chainstays, should be avoided since they can cause deterioration and corrosion of timber frames and sashes.