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How to Restore Timber Sash Windows in Cambridge

Many homes in Cambridge have sash windows that are traditional and homeowners are proud of the way they look. Sash windows can become stuck and become difficult to open or shut. This is often due moisture which can cause the timber to expand.

Box sash windows were previously operated with chains or cotton cords, as well as lead weights. Modern windows with sash springs are concealed to eliminate this issue.

1. Aesthetics

Timber sash windows, in contrast to PVC-u windows, which are made in imperial sizes and are modular, can be reconstructed to their original dimensions. This allows for the restoration of timber sash windows to meet current energy requirements and conform to conservation regulations for areas. It also comes with windows that are superior to the uPVC alternatives.

Sliding sash window frames were initially intended for large structures or public buildings. However, this changed when production became more affordable and artisans could make larger frames using greater glass. By the late 18th century windows made of sash were the predominant design of wood in the majority of British properties. As they were easy to open sash windows allowed light into rooms without 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 beginning but as glass production became less expensive and more efficient, they were commonplace in many historic homes.

In the 19th century, it became possible to produce large, strong glasses that didn't need support bars. This allowed the frame's size to be enlarged further and this in turn allowed for a wider view from the window. This was a significant improvement.

The introduction of the double-hung sliding sash was a significant improvement that came about towards the end of the I920s and beginning of the I930s. The double-hung sliding sash was a significant improvement that came about at the end of the I920s, and at the beginning of the I930s.

Oak was used for older examples and for more prestigious buildings. A parting bead separates the two sashes, and it is essential that it is maintained to prevent rattles and draughts. It is also crucial that the idler and sash pulley wheels are kept in good shape as they help to operate the window.

2. Energy efficiency

Sash windows replaced hinged casements as clearer and larger sheets were made available. Plate glass was set into frames made of timber, which were secured with glazing sprigs and putty was then sprayed onto the frame's sides for watertightness. This type of glass gradually replaced the leaded light bulbs.

The introduction of sashes created a need for a much wider range of ironmongery, including the most basic fittings, brass pulleys and lead (and later cast iron) weights, sash stops, shutter hinges and knobs, and a range of fasteners used to keep the sashes to their place. They were often decorated with designs, inscriptions, and engravings to identify the maker.

Sash windows are energy efficient if they are maintained regularly. But, if you don't maintain them, they can become draughty and let in cold air. Paint and putty can cause draughts. 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 perception that older windows are beyond repair and cannot be maintained economically. However windows can be easily maintained with a bit of attention. However, repairs to these windows can be expensive and involve substantial disruption to the home. To avoid this homeowners, many opt for a complete replacement with PVC-u windows from one the largest 'one stop shop' installation companies. They can replace all windows in a house in one day, thereby saving time and eliminating the need for different tradesmen to coordinate. These windows can be fitted with 'energy-saving' double glazing to achieve higher energy ratings than the traditional windows made of sash. These double-glazed windows aren't able to replicate the proportions and section of historic timber sashes.

3. Security

It is possible to secure traditional windows without compromising their appearance. Many types of ironmongery can be installed including sash chains mortice bolts and sash locks. These can be installed in a way that the window remains capable of being opened for ventilation or cleaning. These windows are typically not noticeable since they are designed to be used in conjunction with sash windows. They can be used in conjunction with traditional sash window catches. These are best replaced with more robust models, such as ones that have double screws or spring levers to decrease the risk of being hit with hammers.

Sash-window frames were traditionally constructed from slow-growing deal or, in more luxurious homes made of oak. If glazing bars have survived, they should be kept and, if possible, the timber of the cill should be replaced by matching wood. Many PVC-U firms offer a one-stop shop installation service. They can take down and replace windows throughout a home in one day, without involving any other tradespeople.

4. Ventilation

Sash windows were first introduced in the 17th century and allowed for a large amount of light to enter buildings. By the end 18th century, they had been modified so that more light could be let into rooms. Larger glass panes were also made. The result was a much lighter appearance, and windows that had a higher quality of design than before.

Sash windows were introduced and required a new type of ironmongery. Early pulleys were constructed of wood. Later Victorian ones were made of brass or a mix of wood and leaded. There were also different types of knobs and shutter hinges. These ironmongery elements should always be retained and cleaned down so that the fine quality of their design can be appreciated.

Timber windows require careful maintenance to keep them in good shape. A lack of attention to them regularly could result in:

Sashes that do not slide smoothly.

holes in the frame that allow water that can cause decay and damage.

window fitters cambridge  can get into the putty and cause decay to the frame or cill.

Steel casement windows gained popularity in the I920s and I930s because they were sturdy and slim, cheap and complemented the trend for healthy living. However, research has revealed that traditional softwood sash windows are as efficient in thermal efficiency as double-glazed PVC-u windows and may be more appealing than the modern sleek design of casement windows.

The industry of replacement windows has made a significant effort to persuade house owners that their traditional windows are old, dirty, and beyond repair. The truth is that a lot of older timber windows are in good condition and with minor repairs could easily be maintained for years to be.

5. Maintenance

A traditional sash window needs regular maintenance and inspection. Inability to keep up with this can lead to sash cords breaking, excessive wear on the glazing bars, and degradation of the paint and putty. The removal of the sashes may also cause structural movement within the frame which causes the sash to become misaligned and unable to close correctly. It is also possible for the sash be stuck or slammed into an open position and this can let water and draughts in the property.

Moisture penetration is a frequent cause of damage to timber windows. This can be avoided by careful painting, regular repairs, and removing the source of dampness. The paint can be removed to expose the soft, decaying wood. The rotten timber sections must be removed with care and the affected part 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 fabric that was originally used and is one of most non-invasive methods to treat timber-to-timber rot.

The use of a wood consolidant made from resin is a different option to the traditional method of sanding and staining. It is brushed onto the surface of the wood to protect it and stabilise it. It is particularly useful in the treatment of sash cords and pulleys where it can help to prevent the breakage.

It is crucial that any ironmongery from the past such as sash stays and latches are kept and rehabilitated instead of being replacing them. These items are difficult to replace without damaging the the original design. It is also advised that fittings made of aluminum like sashlifts, as well as chainstays, should be avoided since they could cause corrosion and deterioration of timber frames and sashes.