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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. However, sash windows may get stuck and be difficult to open or close. This is usually due moisture which can cause the wood to swell.

Traditionally, window boxes utilized chains or cotton cord and lead weights to operate. Modern windows with sash springs are concealed to eliminate this issue.

1. Aesthetics

Unlike PVC-u windows that are constructed according to imperial sizes that are modular the timber sash windows are able to be restored to their original size. This allows for the restoration of timber sash windows in order to meet current energy requirements and to comply with conservation area regulations. It also provides a window that is far superior to the Upvc locksmith cambridge alternatives.

Sliding windows with sash were initially only found in large buildings or public buildings, though the production process became less expensive and craftsmen could create larger frames using more glass. By the end of the 18th century, sash windows had become the most popular wooden style in British homes. Since they were easy to open, sash windows let light into rooms without curtains.

Early windows were simple glass, but in the 17th century sash windows began to become more decorative, with coloured glazing bars and moulded mullions. They were costly at first, but when glass production became less expensive and more efficient, they were an integral feature in many homes of the period.

By the 19th century it was possible to make large, sturdy glass that did not need supporting bars. This allowed the frame to be made larger and, in turn, gave a better view. This was a very important advancement.

The introduction of the double-hung sliding sash was a important improvement that occurred at the end of the I920s and beginning of the I930s. This allowed both the upper and lower sash to be opened simultaneously and also improved the ventilation of the building.

Oak was used in older examples and for more prestigious buildings. It is essential to keep the parting bead that is used to separate the sashes. This will prevent draughts and rattles. The sash pulleys, idler wheels and sash rollers are crucial for the proper operation of the window repair cambridge.

2. Energy efficiency

Sash windows replaced hinged cases as clearer and larger sheets were made available. Plate glass was placed in rebated timber frames, pinned with glazing sprigs and putty was applied to the frame's two sides for watertightness. This type of glass gradually replaced leaded lights.

Sashes were introduced, which led to a greater demand for ironmongery. The most common fittings included brass pulleys (and later cast-iron) weights, sash stoppers shutter hinges, handles and shutter hinges and a variety of fasteners used to secure the sashes. These were usually decorated with motifs, inscriptions, and engraved patterns to identify the maker.

With regular maintenance, sash windows can be very energy efficient. However, without this maintenance they can become draughty and let in cold air. Draughts can also be caused by the deterioration of putty and paint. It is possible to fix this issue by using wood-to-timber products.

The market for replacement windows is based heavily on the perception that older windows are beyond repair and therefore cannot be maintained economically. However windows can be easily maintained with a little attention. Repairs can be costly and cause many disruptions in the home. To avoid this homeowners often prefer to replace their windows with PVC-u windows from one of the largest "one stop shop" installation companies. They can replace all windows in a house in one day, thereby saving time and avoiding the need for multiple tradesmen to coordinate. They are also available with 'energy saving' double-glazing to achieve greater energy efficiency than traditional windows made of sash. However double-glazed windows cannot reproduce the proportions and section of historic timber sashes.

3. Security

It is possible to secure windows that are traditional without compromising their style. Ironmongery, such as sash chain, mortice bolts, and sash lock can be installed. They can be fitted in a way that the window is still capable of being opened to allow ventilation or for cleaning. These are typically unobtrusive, as they are designed to fit the sash window. They can be used in conjunction with traditional sash window catch. They are best replaced with more robust models, such as those with double screws, or sprung levers, to minimize the chance of being struck by hammers.

Sash-window frames were made from slow-growing deal or, in more luxurious homes they were made from oak. If glazing bars have survived, they should be preserved, and if it is it is possible, the timber of the cill should be replaced by matching wood. PVC-U companies usually provide a one-stop shop installation service, removing and replacing windows on a complete home in one day, without the need to engage other tradespeople or coordinate visits from a number of different suppliers.

4. Ventilation

Sash windows were first introduced in the 17th century and allowed for a large amount of light to be absorbed into buildings. At the end of the 18th century they were modified to let even more light into rooms, and larger glazing panes began to be produced. The result was a more light appearance and windows with more elegance.

The introduction of sash windows also demanded the creation of a new line of ironmongery. Early pulleys were made of wood. Later Victorian ones were made of brass or a mix of leaded and wood. There were also different types of knobs and shutter hinges. These ironmongery pieces should be kept clean and preserved in order to appreciate their exquisite design.

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

Sashes that no longer slide easily.

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

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

Steel casement windows became popular in the I920s & I930s because they were strong and slim, cost-effective and matched the trend towards healthy living. Research has proven that softwood sash window are just as effective as PVC-u windows and can even be more attractive.

The industry of replacement windows has done a lot to persuade house owners that their old windows are dirty, noisy and beyond economic repair. Many old windows made of timber can be repaired and used for many more years with minor repairs.

5. Maintenance

A traditional sash window replacement cambridge needs regular maintenance and inspection. Inability to keep up with this can lead to broken sash cords, excessive wear on the glazing bars and deterioration of paint and putty. The removal of sashes could also result in structural movement within the frame, causing the sash to not close properly. The sash could also get stuck in its open position, allowing water and draughts to enter the building.

Damage to timber windows is usually caused by moisture entry. This can be avoided with regular maintenance, thorough painting and removing the source of dampness. Wet rot is recognisable due to the wavy appearance of the existing paint which can be stripped to reveal soft, rotting timber. The rotten timber sections should be carefully cut out and the affected part should be snared together or glued together with replacements of the exact kind as the timber that remains. This method of repair maximises the amount of original fabric left, and is one of the least invasive methods of treating decay of timber to timber.

A wood condenser that is based on resin is an alternative to traditional staining or sanding. It is brushed on the surface of the wood to stabilize it and protect it from further damage. It is particularly useful for the treatment of sash cords and pulleys which help prevent the breakage.

It is essential to preserve and not replace any historical ironmongery, such as stay latches and sash latches. It can be difficult to replace these items without compromising their original design. It is also recommended that the use of modern aluminium fittings such as chain stays and sash lifts is avoided whenever feasible as they could cause corrosion and damage to timber frames and sashes.