One Sash Windows Cambridge Success Story You'll Never Be Able To

How to Restore Timber Sash Windows in Cambridge

Many homes in Cambridge feature traditional sash window and homeowners are proud of their appearance. However, sash windows may become stuck and difficult to open or close. This is often due moisture, which can cause the timber to expand.

Box sash windows were historically operated using chains, cotton cords and lead weights. Modern sash windows come with hidden springs to solve this issue.

1. Aesthetics

Unlike PVC-u windows that are manufactured according to the modular imperial size the timber sash windows are able to be restored to their original dimensions. This allows for the restoration of timber sash windows in order to comply with current energy standards and conform to conservation regulations for areas. It also gives a window with a far superior appearance than the uPVC alternatives.

Sliding frames for windows made of sash were originally only used for large buildings or public buildings. However the production became more affordable and artisans could produce larger frames with more glass. In 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 let light into rooms without the need for 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 costly at the beginning but as glass production became less expensive and more efficient, they became a common feature in many period houses.

In the 19th century it was possible to create large, strong glass that didn't require supporting bars. This allowed the frame's size to be enlarged further, which gave a better view from the window. This was an important innovation.

Another important improvement was the introduction of the double-hung sliding windows 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 also improved the ventilation of buildings.

Oak was used for older and more luxurious buildings. A parting bead is used to separate the two sashes and it is vital that it is maintained to prevent rattles and drafts. The sash pulleys, idler wheels and sash rollers also are vital to the operation of the window.

2. Energy efficiency

As larger and clearer sheets of glass became available, sash windows started replacing hinged casements. Plate glass was set into rebated timber frames, pinned with glazing sprigs and putty was applied to the frame's sides for watertightness. This form of glass gradually replaced led lights.

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

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

tilt windows cambridge RepairMyWindowsAndDoors  relies on the assumption that old windows are damaged and beyond economical repair, while they can be maintained with a little attention. However, repairs to these windows can be expensive and involve significant disruption to your home. Many homeowners opt to replace their windows using PVC-u from a 'one-stop shop' installation company. They can replace and remove all the windows in a home in just one day, eliminating the need to coordinate multiple tradesmen, making the whole process much faster. They are also available with 'energy-saving' double-glazing to get more energy efficient ratings than are possible with traditional windows made of sash. However, these double-glazed units cannot replicate the section and proportions of traditional timber sashes.

3. Security

Traditional windows can be made more secure without compromising their aesthetics. Ironmongery, such as mortice bolts, sash chain and sash locks can be installed. These can be put in place so that the window is able to be opened for ventilation or cleaning. These products are often not noticeable since they are designed to work with sash windows. They can be used in conjunction with traditional sash window catches that are required to be replaced with more robust models (such ones with double screws) or spring levers to decrease the chance of them being hammered open.

Sash-window frames are usually made of oak or slow-grown deal. If the glazing bars are intact, they should be retained. If it is it is possible, the cills of the timber should be replaced with wood that is in line with. Many PVC-U firms offer a one-stop installation service. They can take down and replace windows on a complete house in just one day, without involving any other tradespeople.

4. Ventilation

Sash windows were first introduced in the 17th century and allowed for a significant amount of light to be absorbed into buildings. In the 18th century, they were modified so that more light could be let into rooms. Larger glass panes were also produced. The result was a more light appearance and windows that were more elegant.

The introduction of sash windows also demanded an entirely new range 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 a variety of kinds of knobs and shutter hinges. The ironmongery components should be retained and cleaned down so that the fine quality of their design can be appreciated.

To ensure they remain in good shape, timber windows need to be maintained. Lack of regular attention may cause:

Sashes that don't slide effortlessly.

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

Water can get into the putty and cause decay to the frame or cause cill.

Steel casement windows were popular in the I920s & I930s because they were sturdy and slim, and also because they were 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 can be more attractive than the modern sleek design of casement windows.

The industry of replacement windows has made a significant effort to convince homeowners that their windows are old, dirty, and beyond economic repair. The truth is that a lot of old windows made of wood are in good shape and with minor repairs could easily be maintained for years to come.

5. Maintenance

A traditional sash window requires regular maintenance and inspection. Inability to keep up with this can lead to broken sash cords, excessive wear on the glazing bars, and the deterioration of putty and paint. The removal of sashes may also cause structural shifts within the frame, which causes the sash to be misaligned and not closing properly. It is also possible for the sash be snagged or slammed into an open position and this can let water and draughts into the property.

Moisture penetration is a common cause of damage to windows made of timber. This can be prevented by regular repairs, thorough painting and removing the cause of dampness. Wet rot is easily identified by the wavy look of the paint that can be removed to reveal soft, rotting wood. Any rotten timber sections should be cut off and the affected area should be carefully wrapped or pieced back using replacements made of the same type of timber as the ones remaining. This method of repair maximizes the amount of fabric used in the first place and is one of most minimally invasive methods of treating the rot that occurs between timber and timber.

A wood condenser that is based on resin is a viable alternative to traditional staining or sanding. It is brushed on the surface of the timber to help stabilize it and shield it from further damage. It is especially beneficial for the treatment of sash and pulley cords, which can help prevent breakage.

It is essential that any old ironmongery such as sash stays and latches be kept and restored instead of replacing them. It is difficult to replace these items without compromising their original design. It is also advised that modern fittings made of aluminium, such as sashlifts and chainstays, are avoided since they could cause corrosion and deterioration of timber frames and sashes.