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How to Restore Timber Sash Windows in Cambridge

Many homes in Cambridge have sash windows that are traditional and the homeowners are proud of their appearance. Sash windows can become stuck and become difficult to open or close. This is often due moisture, which can cause the timber to swell.

Box sash windows were traditionally operated by chains, cotton cords and weights made of lead. Modern window doctor near me springs for sash windows are concealed to avoid this issue.

1. Aesthetics

In contrast to PVC-u windows, which are made according to the modular imperial size, timber sash windows can be restored to their original sizes. This allows the restoration to meet modern day energy requirements while complying with conservation areas regulations. It also comes with windows that are superior to the uPVC options.

Sliding sash Window Repair specialists frames were initially only used in large buildings or public buildings. However this changed as production became less expensive and craftsmen could create larger frames using more glass. By the end of the 18th century, sash windows were the most sought-after wooden style in British homes. As they were easy to open, sash windows let light into rooms without curtains.

The first windows were made of plain glass repair cambridge, 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 became more efficient and cost-effective, they became a part of numerous period houses.

In the 19th century, it was possible to create large, sturdy glasses that did not require supporting bars. This allowed the frame to be enlarged which, in turn, provided an improved view. This was an important improvement.

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

Oak was used for older and more luxurious buildings. A parting bead is used to separate the two sashes. It is important that this is maintained to prevent rattles and drafts. The sash pulleys, idler wheels and sash rollers are also crucial to the operation of the window.

2. Energy efficiency

As larger and clearer glass sheets became available, sash window began to replace hinged casements. They were made of plate glass, set in timber frames with rebates and then pinned with glazing sprigs, and then putty on both sides to create a watertight seal. This type of glass gradually replaced the leaded light bulbs.

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, handles and shutter hinges as well as a variety of fasteners to secure the sashes. These were often decorated with motifs, inscriptions, and engraved patterns that identified the maker.

Sash windows are energy-efficient with regular maintenance. Without this maintenance, they can become draughty. Paint and putty can cause draughts too. This can be fixed by using wood-to-timber repair products that are specifically designed for this purpose.

The industry of replacement windows relies heavily on the perception that old windows are damaged beyond repair and are not able to be maintained economically. However, they can easily be maintained with a little attention. Repairs can be expensive and cause many disruptions in the home. Many homeowners decide to replace their windows with PVC-u from a 'one-stop shop' installation company. They can take down and replace all windows in a home within a single day, avoiding the need to coordinate multiple tradesmen, making the whole process much faster. These windows can be equipped with energy-saving double glazing to get more energy efficient ratings than a traditional windows made of sash. However these double-glazed units are unable to reproduce the proportions and section of historic timber sashes.

3. Security

It is possible to secure traditional windows without compromising their style. There are many types of ironmongery that can be installed, including sash chains, mortice bolts, and sash locks. These can be put in place so that the window is still capable of being opened to allow ventilation or for cleaning. They are generally not noticeable, since they are designed to fit the sash window. They can be used alongside traditional sash-window doctor catchers and should be replaced with more robust versions (such as those incorporating double screws) or spring-loaded levers to minimize the risk of them being opened by hammering.

Sash-window frames were typically made from slow-growing deal or, in the more elegant homes they were made from oak. Where glazing bars have survived they should be kept, and where feasible, the wood of the cill should be replaced with matching wood. Many PVC-u firms provide a one-stop shop installation service. They can take out and replace windows on a complete 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 large amount of light into structures. At the end of the 18th century, they were modified to allow more light could be let into the rooms. Larger glazing panes were also made. The result was a lighter look and windows with more elegance.

The introduction of sash windows also demanded the creation of a new line of ironmongery. Early pulleys were of wood, while later Victorian ones were made from brass or a combination of lead and wood, and there were various types of shutter hinges and knobs. Ironmongery elements must be kept and cleaned to ensure that the exquisite quality of their design can be appreciated.

To ensure they remain in good condition, timber windows need to be maintained. Inattention to maintenance can lead to:

Sashes that do not slide easily.

Holes in the frame which allow water to enter and cause damage and decay.

break down of putty, allowing water penetration, which could cause decay in the frame and cill.

Steel casement windows were popular in the I920s and I930s because they were sturdy and slim, cheap and matched the trend towards healthy living. Studies have shown that softwood sash windows are just as effective as PVC-u windows, and may even be more attractive.

The industry of replacement windows was able to convince homeowners that their old windows were decayed, drafty and beyond economical repair. The reality is that many older timber windows are in good condition and with minor repairs can easily be maintained for years to be.

5. Maintenance

A traditional sash window needs regular maintenance and inspection. Inability to keep up with this could result in broken sash cords, excessive wear on the glazing bars, and the deterioration of putty and paint. The removal of the sashes can also result in structural movement within the frame that causes the sash to move out of alignment and in a position that it is not able to close properly. The sash can also be stuck in its open position, which allows the water and drafts to enter the building.

Moisture penetration is the most common cause of damage to timber windows. This can be prevented by careful painting, regular repairs, and removing the cause of dampness. The paint can be removed to reveal the soft, rotting wood. Any rotten timber sections should be cut out and the affected part carefully scarfed or pieced in using replacements made of the same kind of timber as the ones that remain. This method of repair increases the amount of fabric that was originally used and is among the most minimally invasive methods of treating the rot that occurs between timber and timber.

The use of a wood consolidant made from resin is an alternative to the traditional method of staining and sanding. The product is brushed on the surface of the wood to protect it and stabilise it. It is particularly useful for the treatment of sash cords and pulleys which help prevent breakage.

It is crucial that any ironmongery from the past like sash stays and latches are retained and restored rather than replaced. These items can be very difficult to replace without harming the the original design. It is also recommended that fittings made of aluminum like sashlifts, as well as chainstays, are avoided since they could cause corrosion and deterioration of timber frames and sashes.