Buzzwords De-Buzzed: 10 Other Methods To Deliver Sash Windows Cambridge How to Restore Timber Sash Windows in Cambridge

Many homes in Cambridge have traditional sash windows and homeowners are proud of their appearance. However, sash windows may get stuck and be difficult to open or close. This is usually due moisture that can cause the wood to expand.

Traditionally, windows made of box sash 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 sizes. This allows the restoration of timber sash windows in order to meet the current energy requirements and comply with conservation area regulations. It also gives windows that have a more attractive appearance than uPVC alternatives.

Sliding frames for windows made of sash were originally intended for large structures or public buildings. However the production became cheaper and artisans could produce larger frames with greater glass. At the end of the 18th century, sash windows were the most sought-after wooden style in British homes. Sash windows were simple to operate and let light into rooms without the need for curtains.

Early windows were simple glass, but in the 17th century sash windows began to become more attractive with coloured glass bars and moulded mullions. They were costly at the beginning but when glass production became less expensive and more efficient, they were commonplace in many historic homes.

In the 19th century, it became possible to create large, sturdy glasses that didn't require supporting bars. This allowed the frame size to be enlarged further and this in turn allowed for a wider view from the window. This was an important improvement.

double glazing repairs repairmywindowsanddoors was the introduction of the double-hung sliding windows at the end of I920s and at the beginning of I930s. The double-hung sliding sash is another important improvement that came into existence at the end of the I920s, and at the beginning of the I930s.

Oak was used for older examples and for more prestigious buildings. It is important to maintain the separation bead that divides the sashes. This will help prevent rattles and draughts. The idler wheels, sash pulleys and sash rollers are also crucial for the proper operation of the window.

2. Energy efficiency

As larger and clearer sheets of glass were made available, sash windows started replacing hinged casements. Plate glass was set into frames of timber that were rebated, then secured with glazing sprigs and putty was sprayed on both sides of the frame for watertightness. This kind of glass gradually replaced the leaded light bulbs.

The introduction of sashes led to a need for a much wider range of ironmongery, with the basic fittings being brass pulleys, lead (and later cast iron) weights, sash stops shutter hinges, knobs and shutters and a variety of fasteners used to keep the sashes to their place. These were often decorated in motifs, inscriptions, and engravings to identify the maker.

With regular maintenance, sash windows are extremely energy efficient. Without this maintenance they could become drafty. Draughts can also be caused by the deterioration of paint and putty. You can fix this problem with wood-to-timber products.

The market for replacement windows rests on the perception that traditional windows are rotten and beyond repair, while they are able to be maintained with a little attention. However, these repairs can be expensive and involve considerable disruption to the home. To prevent this, many homeowners opt for a complete replacement with PVC-u windows from one the large 'one stop shop' installation companies. They can replace all windows in a house in a single day, saving time and eliminating the need for different tradesmen to coordinate. These windows can be fitted with energy-saving double glazing to get more energy efficient ratings than a traditional windows with sash. These double-glazed units are not capable of resembling the proportions and sections of historic timber sashes.

3. Security


It is possible to secure traditional windows without compromising their appearance. There are many types of ironmongery that can be fitted with sash chains, mortice bolts, and locks for sash. These can be installed in a way so that the window can still be open for ventilation and cleaning. They are generally not noticeable, since they are designed to complement the sash window. They can be used alongside traditional sash window catches and must be replaced by more robust models (such as those incorporating double screws) or spring-loaded levers to minimize the chance of them being opened by hammering.

Sash-window frames are usually constructed from oak or slow-grown deal. If glazing bars have survived, they should be preserved, and if it is feasible, the wood of the cill should be replaced with matching wood. Many PVC-U companies offer a one-stop installation service. They can take down and replace windows on an entire home in 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. By the end 18th century, they had been modified to allow more light could be let into rooms. Larger glass panes were also made. The result was a lighter appearance and windows with more elegance.

Sash windows were introduced that required a brand new range ironmongery. Early pulleys were made from wood, later Victorian ones were made from brass or a combination of wood and lead, and there were many kinds of shutter hinges and knobs. The ironmongery components should be kept and cleaned so that the fine quality of their design can be appreciated.

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

sashes that no longer slide smoothly.

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

break down of putty, allowing water penetration that could cause decay in the frame and cill.

Steel casement windows became popular in the I920s and I930s because they were strong and slim, cheap and matched the trend of healthy living. However, research has revealed that traditional softwood sash windows can be just as thermally efficient 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 persuade house owners that their traditional windows are rotten, draughty and beyond repair. The reality is that many older windows made of wood 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. If you don't maintain your sash window, it can result in the sash cords breaking, and the glazing bars deteriorating excessively. It could also cause the paint and putty to become damaged. The removal of sashes may also cause structural movement in the frame, which can cause the sash not to close properly. It is also possible for the sash to be snagged or slammed into an open position and let water and draughts enter the property.

Moisture penetration is a frequent cause of damage to windows made of timber. This can be prevented by regular repairs, thorough painting and removing the source of dampness. Wet rot is recognisable by the wavy appearance of the paint, which can be removed to reveal rotting, soft timber. The sections of timber that are rotten should be carefully removed, and the affected area should be scarfed together or glued together with replacements of the exact nature as the rest of the timber. This method of repair maximizes the amount of fabric that was originally used and is one of most non-invasive methods to treat timber-to-timber rot.

A wood condenser that is based on resin is a viable alternative to traditional sanding or staining. It is brushed onto the surface of the wood to protect it and strengthen it. It is particularly useful in the treatment of pulleys and sash cords which can help stop breakage.

It is essential to preserve and not replace any historical ironmongery, such as sash latches and stays. These items can be very difficult to replace without harming the quality of the original design. It is also recommended that modern fittings made of aluminium, such as sashlifts and chainstays, are avoided since they can cause deterioration and corrosion of timber frames and sashes.