How to Restore Timber Sash Windows in Cambridge

Many homes in Cambridge feature traditional sash window and homeowners are proud of their appearance. Sash windows can become stuck and be difficult to open or close. This is usually due moisture which can cause the wood to swell.

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

1. Aesthetics

Timber sash windows, unlike PVC-u windows which are manufactured in imperial sizes that are modular, can be restored to their original size. This allows the restoration of timber sash windows in order to meet the current energy requirements and conform to conservation area regulations. It also comes with an option that is superior to Upvc door Repairs alternatives.

Sliding sash windows were initially only used in large buildings or public buildings, however this changed as production became cheaper and craftsmen could make larger frames with more glass. In the 18th century, Sash windows were the most popular wooden design in most British properties. Sash windows were simple to operate and let light in rooms without the use of curtains.

The early windows were made of clear glass However, by the 17th Century the sash windows began to be more decorative. They started with coloured glazing bars, also known as mullions. They were expensive at first, but as glass production became less expensive and more efficient, they were an integral feature in many period houses.

In the 19th century, it was possible to manufacture large, sturdy glass that did not require supporting bars. This allowed for the frame to be made larger and, in turn, gave the viewer a better view. This was an important advancement.

Another significant improvement was the introduction of the double-hung sliding windows at the end of the I920s and beginning of the I930s. The double-hung sliding sash is another important improvement that was made at the end of the I920s and beginning of the I930s.

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

2. Energy efficiency

As larger and clearer sheets of glass became available, sash windows began replacing hinged casements. They were made of plate glass, set within rebated timber frames and pinned in place using glazing sprigs, and then putty on both sides to ensure they were watertight. This kind of glass gradually replaced led lights.

Sashes were introduced, which resulted in a greater demand for ironmongery. The basic fittings included brass pulleys (and later cast-iron) weights as well as sash stoppers shutter hinges and handles and a variety of fasteners used to secure the sashes. These were often decorated with motifs, inscriptions and engraved patterns that identified the maker.

With regular maintenance, sash windows can be extremely energy efficient. If they are not maintained they could become draughty. Paint and putty can cause draughts. This can be remedied by making use of wood-to-timber repair tools that are proprietary.

The replacement window industry relies heavily on the belief that old windows are damaged beyond repair and cannot be maintained economically. However they can be maintained with a little attention. However, these repairs to upvc doors are costly and can cause considerable disruption to the home. To avoid this, many homeowners choose to replace their windows with PVC-u windows from one of the large "one stop shop" installation companies. They can replace and remove all windows in an entire house within a single day, eliminating the need to coordinate different tradesmen and making the entire process much more efficient. These windows can be fitted with 'energy-saving' double glazing to achieve more energy efficient ratings than a traditional windows with sash. However, these double-glazed units cannot replicate the section and proportions of historic timber sashes.

3. Security

Traditional windows can be secured without compromising their appearance. A variety of ironmongery types can be fitted with sash chains, mortice bolts and locks for sash. These can be put in place so that the window remains capable of being opened to allow ventilation or for cleaning. They are usually unobtrusive as they are designed to be used in conjunction with sash windows. They can be used in conjunction with traditional sash window catches that must be replaced by more robust versions (such ones that have double screws) or spring-loaded levers to minimize the chance of them being hammered out.

Sash-window frames are traditionally constructed from oak or slow-grown deal. If the glazing bars are in good condition and are not damaged, they should be left. If it is it is possible, the cills of the timber should be replaced by timber that is compatible with. PVC-U companies usually offer a one stop shop installation service that can remove and replacing windows across a 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 introduced in the 17th century and allowed for a large amount of light to be absorbed into buildings. In the 18th century, they had been modified so that more light could be let into the rooms. Larger glazing panes were also produced. The result was a lighter appearance and windows with a higher quality of design than before.

The introduction of sash windows also demanded the creation of a new line of ironmongery. Early pulleys could be made of wood. Later Victorian ones were made of brass or a mix of leaded and wood. There were also a variety of kinds of shutter hinges and knobs. The ironmongery components should be kept and cleaned to ensure that the exquisite quality of their design can be appreciated.

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

Sashes that no longer slide easily.

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

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

In the I920s and I930s, steel casement windows grew in popularity due to their durability slim and inexpensive and were in line with the trend for healthy living. However, research has revealed that traditional softwood sash windows can be just as efficient in thermal efficiency as double-glazed windows made of PVC-u, and are more attractive than the modern sleek design of casement windows.

The window replacement industry has done a lot to persuade house owners that their traditional windows are dirty, noisy and beyond repair. Many older timber windows can be fixed and utilized for a longer period with minor repairs.

5. Maintenance

A traditional sash window requires regular maintenance and inspection. If you fail to maintain your sash window, it could lead to the sash cords breaking, and the glazing bars deteriorating excessively. It could also cause paint and putty to become damaged. The removal of sashes may also result in structural movements within the frame, which can cause the sash not to close correctly. It is also possible for the sash to be stuck or fixed in an open position and this can let water and draughts into the property.

Moisture penetration is a frequent cause of damage to windows made of timber. This can be prevented with thorough painting, periodic repairs and the elimination of the source of dampness. The paint can be removed to expose the soft, rotting wood. Any rotten timber sections should be cut off and the affected area carefully scarfed or pieced in using replacements made from the same kind of timber as the ones that remain. This method of repair maximizes the amount original fabric and is among the most non-invasive methods to treat wood-to-timber rot.

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

It is essential that any old ironmongery such as sash stays and latches are kept and restored rather than replaced. These items can be very difficult to replace without harming the the original design. It is also recommended that the use of modern aluminium fittings such as chain stays and sash lifts should be avoided if feasible as they could cause corrosion and deterioration to timber frames and sashes.