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How to Restore Timber Sash Windows in cambridge double glazing

Many homes in cambridge double glazing have sash windows with traditional designs and homeowners are proud of the way they appear. However, sash windows can become stuck and difficult to open or close. This is usually due moisture, which can cause the wood to expand.

Traditionally, box sash windows utilized chains, cotton cords or weights made of lead to operate. Modern windows with sash springs are concealed to solve this problem.

1. Aesthetics

Unlike PVC-u windows that are made according to imperial sizes that are modular the timber sash windows are able to be restored to their original sizes. This allows the restoration to meet the current energy standards while still complying with conservation areas regulations. It also gives a window with a far superior appearance than Upvc Door Repairs alternatives.

Sliding sash window frames were initially only used for large buildings or public buildings. However, this changed when production became cheaper and artisans could create larger frames using more glass. By the late 18th century Sash windows were the most popular wooden design in most British properties. Sash windows were easy to operate and allowed light to enter rooms without the need for curtains.

Early windows were plain glass, but by the 17th century sash windows were becoming more decorative, with coloured glazing bars and moulded mullions. These windows were quite expensive at the time but as glass production became more efficient and less expensive, they were a common feature in many period houses.

By the 19th century it was possible to create large, strong glass that did not require support bars. This allowed the frame size to be increased even further, which gave a better view from the window. This was a significant improvement.

The introduction of the double-hung sliding sash was another important improvement that was made at the end of the I920s and beginning of the I930s. The double-hung sliding sash was a important improvement that was made at the end of the I920s, and at the beginning of the I930s.

The most commonly used kind of sash is made of slow-growing deal (pine) however oak was used in the more luxurious buildings and in some earlier examples. A parting bead is used to separate the two sashes and it is vital that it is maintained to prevent rattles and draughts. The idler wheels, sash pulleys and sash rollers also are crucial to the operation of the window.

2. Energy efficiency

As clearer and larger sheets of glass became available, sash windows began to replace hinged casements. Plate glass was placed in rebated timber frames, which were pinned with glazing sprigs, and putty was then sprayed onto the frame's sides to ensure watertightness. This kind of glazing gradually replaced leaded lights.

The introduction of sashes created the need for a greater variety of ironmongery, with the basic fittings being brass pulleys as well as lead (and later cast iron) weights, sash stops, shutter hinges and knobs as well as a range of fasteners that secured the sashes into the right place. They were often decorated with motifs, inscriptions, and engravings to identify the maker.

Sash windows are energy efficient if they are maintained regularly. If they are not maintained, they can become noisy. Paint and putty can cause draughts. This can be remedied by using proprietary wood-to-timber repair products.

The industry of replacement windows is based on the perception that old windows are damaged and beyond repair, but they can be easily maintained with just a little care. However, repairs to upvc doors to these windows are costly and can cause considerable disruption to the home. To avoid this homeowners often prefer to replace their windows with PVC-u windows from one of the large "one stop shop" installation companies. They can take down and replace all windows in a home within a single day, eliminating the need to coordinate different tradesmen and making the entire process much quicker. They are also available with energy-saving double-glazing to achieve higher energy efficiency ratings than are possible with traditional windows with sash. However, these double-glazed units cannot replicate the section and proportions of the sashes made of timber from the past.

3. Security

It is possible to secure windows that are traditional without compromising their style. Many types of ironmongery can be fitted with sash chains, mortice bolts, and locks for sash. These can be installed in such a way that the window is able to be open for ventilation and cleaning. These products are usually minimal in appearance, as they are designed to match the sash window. They can be used in conjunction with traditional sash window catches. They should be replaced with more robust models, such as ones that have double screws or spring levers in order to reduce the chance of being struck by hammers.

Sash-window frames are typically constructed from oak or slow-grown deal. Where glazing bars have survived they should be kept and, if possible, the timber of the cill should be replaced with the same wood. Many PVC-U companies offer a one-stop shop installation service. They can take out and replace windows throughout a house in just one 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 the buildings. At the end of the 18th century, they had been modified so that more light could be let into rooms. Larger glazing panes were also made. The result was a lighter appearance and windows with a higher level of elegance than they had before.

The introduction of sash windows also necessitated an entirely new range of ironmongery. Early pulleys were constructed from wood. Later Victorian ones were made of brass or a mixture of wood and lead. There were also a variety of kinds of shutter hinges and knobs. These ironmongery elements should always be kept and cleaned so that the quality of their design can be appreciated.

To keep them in good shape, timber windows must be maintained. Inattention to maintenance can lead to:

Sashes that no longer slide easily.

Holes in the frame that allow water to enter and 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 sturdy and slim, cost-effective and complemented the trend for healthy living. However, research has shown that traditional softwood sash windows are as efficient thermally as PVC-u double-glazed windows, and may be more appealing than the sleek lines of contemporary casement windows.

The window replacement industry has made a significant effort to convince homeowners that their traditional windows are rotten, draughty and beyond economic repair. The reality is that many older windows made of wood are in good condition and with minor repairs can easily be repaired for many years to be.

5. Maintenance

A traditional sash window requires regular maintenance and inspection. If you fail to maintain your window's sash, it could lead to the sash cords breaking, and the glazing bars wearing out excessively. It can also cause paint and putty to deteriorate. The removal of sashes may also cause 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 may also become stuck in the open position, allowing water and draughts to enter the property.

Damage to windows made of timber is often caused by moisture penetration. This can be avoided with regular repairs, thorough painting and removing the source of dampness. Wet rot is easily identified due to the wavy appearance of the existing paint which can be stripped away to reveal rotting, soft timber. The rotten timber sections should be carefully removed, and the affected area should be scarfed together or pieced together by using replacements of the same type as the remaining timber. This method of repair maximises the amount of original fabric left, and is one of the least invasive methods for treating timber-to-timber decay.

The use of a resin-based wood consolidant is another alternative to the traditional method of sanding and staining. It is brushed onto the surface of the wood to protect it and stabilize it. It is particularly beneficial for the treatment of pulleys and sash cords which can help stop breakage.

It is crucial to restore and not replace any historical ironmongery, such as the sash latches and stays. These items can be very difficult to replace without compromising the the original design. It is also recommended that fittings made of aluminum, such as sashlifts and chainstays, should be avoided since they can cause corrosion and deterioration of timber frames and sashes.