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How to Restore Timber Sash Windows in Cambridge

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

Traditionally, windows made of box sash used chains or cotton cord and lead weights to operate. Modern sash windows feature hidden springs to address this problem.

1. Aesthetics

Timber sash windows, in contrast to PVC-u windows which are manufactured in imperial sizes, which are modular, can be reconstructed to their original size. This allows the restoration of timber sash windows to meet current energy requirements and to comply with conservation area regulations. It also offers windows that are superior to upvc door repairs options.

Sliding frames for windows made of sash were originally intended for large structures or public buildings. However this changed as production became cheaper and artisans could make larger frames using greater glass. In the late 18th century sash windows were the dominant design of wood in the majority of British properties. Because they were simple to open sash windows allowed light into rooms without curtains.

The first windows were made of plain glass but by the 17th century sash windows started to become more decorative with coloured glazing bars and moulded mullions. They were expensive at the time, but as glass production became more efficient and cost-effective, they were a common feature in numerous period houses.

In the 19th century, it was possible to create large, strong glass that did not require supporting bars. This allowed for the frame to be made bigger and, in turn, gave an improved view. This was a very important improvement.

The introduction of the double-hung sliding sash was another significant improvement that came about at the end of the I920s and at the beginning of the I930s. The double-hung sliding sash is another 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 more prestigious buildings. It is crucial to maintain the parting bead which separates the sashes. This will help prevent rattles and draughts. The idler wheels, sash pulleys and sash rollers are crucial for the proper operation of the window.

2. Energy efficiency

As clearer and larger glass sheets became available, sash windows began to replace hinged casements. They were coated with plate glass that was set in timber frames with rebates and pinned in place using glazing sprigs, and then putty on both sides to ensure they were watertight. This type of glass gradually replaced the leaded light bulbs.

The introduction of sashes created a need for a much greater variety of ironmongery, with the most basic fittings being brass pulleys and lead (and later cast iron) weights, sash stoppers, shutter hinges and knobs, and a range of fasteners to hold the sashes to their the right place. They were often decorated with motifs, inscriptions or designs that were engraved to identify the maker.

Sash windows can be very energy efficient when they are maintained regularly. Without this maintenance they can get draughty. Draughts can also be caused by the breakdown of paint and putty. You can fix this problem by using wood-to-timber solutions.

The market for replacement windows rests on the assumption that old windows are damaged and beyond economical repair, whereas they can be maintained with a little attention. However, these repairs can be expensive and involve substantial disruption to the home. Many homeowners decide to replace their windows with PVC-u from a huge 'one-stop shop' installation company. They can replace all windows in a home in one day, saving time and eliminating the need for various tradesmen to coordinate. They can also be fitted with 'energy saving' double-glazing to achieve greater energy efficiency than are possible with traditional sash windows. These double-glazed units are not capable of resembling the proportions and section of sashes from old timber.

3. Security

It is possible to secure windows that are traditional without compromising on their aesthetics. A variety of ironmongery types can be fitted with sash chains, mortice bolts and locks for sash. These can be installed to ensure that the window remains open to allow ventilation or cleaning. They are usually not noticeable since they are designed to be used in conjunction with sash windows. They can be used alongside traditional sash window catches, which should be replaced with more robust models (such ones with double screws) or spring-loaded levers to minimize the risk of them being opened by hammering.

Sash-window Seal repairs frames are usually made from oak or slow-grown deal. If the glazing bars are in good condition and in good condition, they should be kept. If it is it is possible, the cills of the timber should be replaced by timber that is compatible with. Many PVC-u firms offer a one-stop 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

Sash windows were introduced in the 17th century and allowed for a significant amount of light to be absorbed into buildings. By the end of the 18th century, they were altered to allow more light into rooms and larger glazing panes began to be made. The result was a lighter appearance and windows with more elegance.

The introduction of sash windows also necessitated an entirely new range of ironmongery. Early pulleys were of wood, while later Victorian ones could be made from brass or a combination of lead and wood, and there were various types of shutter hinges and knobs. These ironmongery pieces should be cleaned and preserved to appreciate their fine design.

Timber windows require careful maintenance to ensure they remain in good condition. Lack of attention to them regularly can lead to:

Sashes that do not move easily.

holes in the frame that admit water, which can cause damage and decay.

The putty can be soaked by water and cause decay to the frame or the cill.

In the I920s and the I930s steel casement windows increased in popularity because they were strong slim and affordable and also matched the fashion for healthy living. Research has shown that softwood sash window are as efficient as PVC-u windows, and may even be more attractive.

The window replacement industry did a lot to convince homeowners that their old windows were rotten drafty, noisy and beyond repair. The reality is that many older windows made of timber are in good condition and with minor repairs can easily be maintained for years to come.

5. Maintenance

Traditional sash windows require regular maintenance and inspection. Failure to do this could result in the sash cords breaking, a lot of wear on the glazing bars, and the deterioration of putty and paint. The removal of sashes could also result in structural movement within the frame, causing the sash not to close correctly. It is also possible for the sash to be stuck or fixed in an open position and let water and draughts into the structure.

Moisture penetration is a frequent cause of damage to windows made of timber. This can be avoided with regular maintenance, thorough painting and removing the cause of dampness. The paint can be removed to expose the soft, rotting wood. The rotten timber sections should be carefully cut out and the affected area should be scarfed together or glued 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 among the least invasive methods for treating decay caused by timber.

A wood condenser that is based on resin is an alternative to traditional sanding or staining. It is brushed on the surface of the wood to stabilize it and shield it from further damage. It is particularly useful for treating sash and pulley cords, which can stop breakage.

It is crucial that any ironmongery from the past such as sash stays and latches are kept and restored rather than replacing them. It is difficult to replace these items without altering their original design. It is also recommended that fittings made of aluminum like sashlifts and chainstays, should be avoided since they can cause deterioration and corrosion of timber frames and sashes.