How to Restore Timber Sash Windows in Cambridge

Many homes in cambridge replacement windows have traditional sash windows and homeowners are proud of the way they appear. Sash windows can become stuck and become difficult to open or shut. This is usually due to moisture, which can cause the timber to swell.

Traditionally, windows made of box sash used chains, cotton cords or weights made of lead to operate. Modern window springs for sash windows are concealed to avoid this issue.

1. Aesthetics

In contrast to PVC-u windows, which are constructed to modular imperial sizes the timber sash windows are able to be restored to their original sizes. This lets the restoration meet modern day energy requirements while still complying with conservation areas regulations. It also comes with an option that is superior to upvc repairs near me alternatives.

Sliding windows with sash were initially only used in large structures or public buildings, though this changed when production became cheaper and craftsmen could make larger frames with more glass. At the close of the 18th century, sash windows had become the most sought-after wooden windows cambridge style in British homes. Sash windows were simple to operate and let light in rooms without the use of curtains.

Early windows were plain glass, but in 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 improved and cost-effective, they were a common feature in many of the period homes.

In the 19th century, it was possible to create large, sturdy glasses that didn't require support bars. This allowed the frame to be made bigger and, in turn, gave an improved view. This was a significant innovation.

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

The most commonly used type of sash is constructed from slow grown deal (pine) however oak was utilized in more expensive buildings as well as in earlier examples. It is essential to keep the parting bead which separates the sashes. This will help prevent rattles and draughts. It is also crucial that the idler and sash pulley wheels are kept in good working order as they help to operate the window.

2. Energy efficiency

Sash windows were replaced by hinged casements as larger and clearer sheets became available. Plate glass was set into frames of timber that were rebated, then pinned with glazing sprigs and putty was sprayed on the frame's two sides for watertightness. This kind of glazing gradually replaced the leaded light bulbs.

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

With regular maintenance, sash windows are extremely energy efficient. Without this maintenance, they can become draughty. Draughts can also result from the degeneration of putty and paint. This can be remedied by making use of wood-to-timber repair tools that are proprietary.

The market for replacement windows rests on the assumption that old windows are damaged and beyond repair, but they can be maintained with a bit of care. Repairs can be costly and cause many disruptions in the home. To avoid this homeowners, many prefer to replace their windows with PVC-u windows from one of the largest "one stop shop" installation companies. They can take down and replace all windows in an entire house in just one day, eliminating the need to co-ordinate different tradesmen, making the whole process much faster. These windows can be fitted with 'energy-saving' double glazing to achieve more energy efficient ratings than a traditional sash window. However these double-glazed units are unable to replicate the section and proportions of traditional timber sashes.

3. Security

Traditional windows can be secured without compromising their style. A variety of ironmongery types are available, including sash chains, mortice bolts, and locks for sash. They can be positioned in a way so that the window can be opened to allow ventilation and cleaning. These are typically not noticeable, since they are designed to match the sash window. They can be utilized in conjunction with traditional sash-window catchers that must be replaced by more robust models (such ones with double screws) or spring levers to decrease the possibility of them being opened by hammering.

Sash-window frames are typically constructed from oak or slow-grown deal. When glazing bars have survived they should be preserved, and where feasible, the wood of the cill should be replaced with matching wood. Many PVC-U companies offer a one-stop shop installation service. They can take out and replace windows throughout a home in one day, without involving other tradespeople.

4. Ventilation

When sash windows Cambridge were first introduced in the 17th century, they allowed a large amount of light to flood into structures. By the end 18th century, they had been modified so that more light could be let into rooms. Larger glass panes were also created. The result was a more light appearance and windows with more elegance.

The introduction of sash windows also necessitated the creation of a new line of ironmongery. Early pulleys were made from wood, whereas later Victorian ones were made from brass or a mixture of wood and lead, and there were various types of shutter hinges and knobs. These ironmongery pieces must be maintained and cleaned to appreciate their fine design.

Timber windows require careful maintenance to keep them in good order. Lack of regular attention may cause:

Sashes that don't slide smoothly.

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

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

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

The window replacement industry has done a lot to convince homeowners that their traditional windows are old, dirty, and beyond economic repair. Many older timber windows can be fixed and used for many more years with minor repairs.

5. Maintenance

A traditional sash window requires regular maintenance and inspection. If you do not 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 degrade. The removal of sashes could also result in structural movement within the frame which causes the sash to become misaligned and unable to close correctly. The sash can also be stuck in the open position, allowing water and draughts to enter the building.

Moisture penetration is the most common cause of damage to windows made of timber. This can be prevented by thorough painting, regular repairs and elimination of the cause of dampness. Wet rot is easily identified by the wavy appearance of the existing paint which can be removed to reveal rotting, soft timber. The sections of timber that are rotten should be carefully cut out and the affected part should be scarfed or pieced together using replacements of the same type as the remaining timber. This method of repair increases the amount of fabric used in the first place and is one of least invasive ways to treat the rot that occurs between timber and timber.

The use of a resin-based wood consolidant is another alternative to the traditional method of staining and sanding. It is brushed on the surface of the timber to stabilise and protect it from further damage. It is particularly beneficial in the treatment of pulleys and sash cords which help prevent the breakage.

It is important that any old ironmongery such as sash stay and latches are retained and restored instead of replacing them. It is difficult to replace these items without altering their original design. It is also recommended that the use of modern aluminum fittings, such as chain stays and sash lifts should be avoided if possible since they can cause corrosion and deterioration of frames and sashes made of timber.