How to Restore Timber Sash Windows in Cambridge

Many homes in upvc locksmith cambridge feature traditional sash window and homeowners are proud of their appearance. Sash windows can get stuck and are difficult to open or close. This is usually due to moisture that can cause the timber to swell.

Traditionally, box sash windows utilized chains, cotton cords or weights made of lead to operate. Modern sash windows feature hidden springs to solve this issue.

1. Aesthetics

Timber sash windows, unlike PVC-u windows which are manufactured in imperial sizes, which are modular, are able to be restored to their original size. This allows the restoration to meet modern day energy requirements while still complying with conservation areas regulations. It also provides a window with a far more attractive appearance than upvc door handle Repairs Near me alternatives.

Sliding sash windows were initially only used in large structures or public buildings, but the production process was less expensive and craftsmen were able to create larger frames using more glass. In the late 18th century sash windows were the dominant design of wood in the majority of British properties. Sash windows were easy to operate and let light in rooms without the use of curtains.

The early windows were made of plain glass however, in the 17th century the sash windows began to become more ornamental. They began with colored glazing bars or mullions. These were very expensive at the time but as glass production became more efficient and cost-effective, they became a part of numerous period houses.

In the 19th century, it became possible to make large, strong glasses that didn't require supporting bars. This allowed the frame's size to increase more, which in turn meant more of a view from the window. This was a very important improvement.

The introduction of the double-hung sliding sash is another important improvement that occurred towards the end of the 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 the building.

Oak was used for older examples and for more prestigious buildings. It is essential to keep the separation bead that separates the sashes. This will stop draughts and rattles. The sash pulleys, idler wheels and sash rollers are also essential to the functioning of the window.

2. Energy efficiency

Sash windows were replaced by hinged casements as clearer and larger sheets were made 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 to ensure watertightness. This type of glass gradually replaced the leaded light bulbs.

The introduction of sashes created the need for a wider range of ironmongery, including the most basic fittings, brass pulleys and lead (and later cast iron) weights, sash stops shutter hinges and knobs and a variety of fasteners that secured the sashes to their the right place. These were often decorated with motifs, inscriptions, and engravings that identified the maker.

Sash windows can be very energy-efficient with regular maintenance. If they are not maintained they could become draughty. Putty and paint can cause draughts too. This can be corrected using wood-to-timber repair products that are specifically designed for this purpose.

The replacement window industry relies heavily on the belief that old windows are damaged beyond repair and are not able to be maintained economically. However they can be maintained with a bit of attention. Repairs can be costly and cause a lot of disruption in the home. To avoid this homeowners often prefer to replace their windows with PVC-u windows from one the many "one stop shop" installation companies. They can replace all windows in a home in one day, thereby saving time and avoiding the need for multiple tradesmen to coordinate. These windows can be fitted with 'energy-saving double-glazing to attain higher energy ratings than traditional sash window. However, these double-glazed units cannot reproduce the proportions and section of the sashes made of timber from the past.

3. Security

It is possible to secure traditional windows without compromising their style. A variety of ironmongery types can be fitted including sash chains mortice bolts, and locks for sash. They can be fitted in such a way that the window can be open for ventilation and cleaning. They are usually unobtrusive as they are designed to complement sash windows. They can be used with traditional sash window catches. They should be replaced by more robust versions like those with double screws or spring levers, to minimize the risk of being hit with hammers.

Sash-window doctor near me frames are usually made of oak or slow-grown deal. When glazing bars have survived they should be kept, and if it is feasible, the wood of the cill should be replaced by identical wood. PVC-u companies often provide a one-stop shop installation service, removing and replacing windows on an entire home in a single day without the need to engage other tradespeople or coordinate visits from different suppliers.

4. Ventilation

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

Sash windows were introduced, which required a new type of ironmongery. Early pulleys were made of wood. Later Victorian ones were made of brass or a combination of leaded and wood. There were also various kinds of shutter hinges and knobs. The ironmongery components should be maintained and cleaned so that the quality of their design can be appreciated.

Timber windows require regular maintenance to keep them in good shape. Lack of attention to them regularly can result in:

sashes that no longer slide smoothly.

holes in the frame that admit water causing damage and decay.

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

In the I920s and I930s, steel casement windows gained popularity due to their durability, slim and cheap and also matched the fashion for healthy living. Research has proven that softwood sash windows are just as efficient as PVC-u windows and can even be more attractive.

The replacement window industry did a lot to convince homeowners that their old windows were rotten, drafty and beyond economical repair. Many old timber windows can be repaired and used for many more years with minor repairs.

5. Maintenance

The traditional sash windows require regular maintenance and inspection. Failure to do this could result in sash cords breaking, excessive wear on the glazing bars and deterioration of paint and putty. The removal of sashes may also cause structural shifts within the frame, which causes the sash to become misaligned and unable to close correctly. The sash can also be stuck in an open position, which allows water and draughts to enter the building.

Damage to timber windows is usually caused by moisture entry. This can be avoided by thorough painting, regular repairs, and removing the source of dampness. The paint can be removed to expose the soft, decaying wood. The sections of timber that are rotten must be removed with care and the affected area should be scarfed together or glued together by using replacements of the same kind as the timber that remains. This repair method increases the amount original fabric and is among the most minimally invasive methods of treating timber-to-timber rot.

The use of a resin-based wood consolidant is a different option to traditional staining and sanding. The product is brushed on the surface of the wood to protect it and stabilise it. It is particularly useful in the treatment of pulleys and sash cords where it can help to prevent the breakage.

It is crucial to restore and not replace any historic ironmongery such as sash latches and stays. It can be difficult to replace these items without compromising their original design. It is recommended that the use of modern aluminum fittings, such as chain stays and sash lifts should be avoided if possible as they can cause corrosion and deterioration to frames and sashes made from timber.