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How to Restore Timber Sash Windows in Cambridge

Many homes in Cambridge have sash windows with traditional designs and homeowners are proud of the way they look. However, sash windows may get stuck and be difficult to open or close. This is typically due to moisture which can cause the wood to expand.

Box sash windows were historically operated with chains or cotton cords as well as weights made of lead. Modern window springs for sash windows are concealed to eliminate this issue.

1. Aesthetics

Timber sash windows, in contrast to PVC-u windows which are manufactured in imperial sizes and are modular, can be reconstructed to original dimensions. This allows for the restoration of timber sash windows to meet the current energy requirements and to comply with conservation regulations for areas. It also comes with a window that is far superior to upvc window repairs near me options.

Sliding sash windows were initially only used in large buildings or public buildings, however this changed when production was less expensive and craftsmen were able to produce larger frames with more glass. At the end of the 18th century, sash windows had become the most popular wooden windows and doors Cambridge style in British homes. Sash windows were easy to operate and allowed light to enter rooms without the need for curtains.

The first windows were made of glass that was plain, but by the 17th Century sash windows started to be more decorative. They began with colored glazing bars, also known as mullions. They were costly at first, but as glass production became less expensive and more efficient, they were a common feature in many period houses.

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

The introduction of the double-hung wooden sliding doors cambridge sash is another significant improvement that came about at the end of the I920s and beginning of the I930s. This allowed both the upper and lower sash to be opened simultaneously, and also improved the ventilation of buildings.

The most popular type of sash is made of slow-growing deal (pine) however oak was used in the more expensive buildings as well as in earlier examples. A split bead divides the two sashes, and it is vital that it is maintained to prevent rattles and drafts. The sash pulleys, idler wheels and sash rollers are also vital for the proper operation of the window.

2. Energy efficiency

Sash windows replaced hinged cases as larger and clearer sheets were made available. Plate glass was set into frames of timber that were rebated, then pinned with glazing sprigs and putty was applied to the frame's sides for watertightness. This kind of glazing gradually replaced leaded lights.

The introduction of sashes resulted in the need for a greater variety of ironmongery, including the most basic fittings, brass pulleys, lead (and later cast iron) weights, sash stops shutter hinges, knobs and shutters as well as a range of fasteners used to keep the sashes into the right place. These were often decorated in designs, inscriptions, and patterns engraved to identify the maker.

Sash windows can be extremely energy efficient if they are maintained regularly. If they are not maintained, they can become draughty. Draughts can also result from the degeneration of putty and paint. This can be remedied by using proprietary wood-to-timber repair products.

The market for replacement windows is based heavily on the notion that old windows are damaged beyond repair and therefore cannot be maintained economically. However, they can easily be maintained with a little attention. These repairs can be costly and cause a lot of disruption in the home. Many homeowners choose to replace their windows with PVC-u from a "one-stop shop" installation company. They can replace all windows in a house in a single day, saving time and eliminating the need for different tradesmen to coordinate. They can also be supplied with 'energy-saving' double-glazing, which can achieve greater energy efficiency than traditional sash windows. Double-glazed windows aren't capable of resembling the proportions and section of historic timber sashes.

3. Security

It is possible to secure traditional windows without compromising their style. A variety of ironmongery types are available with sash chains, mortice bolts, and sash locks. They can be fitted to ensure that the window remains able to be opened for ventilation or cleaning. These windows are typically not noticeable since they are designed to work with sash windows. They can be utilized in conjunction with traditional sash-window catchers that must be replaced by more robust versions (such ones that have double screws) or sprung levers to reduce the risk of them being opened by hammering.

Sash-window frames were traditionally constructed from slow grown deal or, in more prestigious houses they were made from oak. Where glazing bars have survived they should be kept, and where it is possible, the timber of the cill should be replaced by matching wood. PVC-U companies usually provide a one-stop shop installation service that can remove and replacing windows on a complete 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 into buildings. By the end of the 18th century they were altered to allow even more light into rooms, and larger glazing panes began to be made. The result was a much more streamlined appearance, and windows with a higher quality of design than before.

Sash windows were introduced that required a brand new type of ironmongery. Early pulleys could be made from wood. Later Victorian ones were made of brass or a mix of leaded and wood. There were also a variety of types of shutter hinges and knobs. These ironmongery pieces should be kept clean and preserved in order to appreciate their beautiful design.

Timber windows require regular maintenance to ensure they remain in good condition. A lack of regular attention could lead to:

Sashes that do not slide effortlessly.

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

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

In the I920s and I930s steel casement windows gained popularity due to their durability slim and affordable and were in line with the trend for healthy living. However, research has shown that traditional softwood sash windows are as thermally efficient as double glazing cambridge-glazed PVC-u windows and can be more attractive than the modern sleek design of casement windows.

The replacement window industry has made a significant effort to convince homeowners that their windows are old, dirty, and beyond repair. Many older timber windows are repairable and can be used for a long time with minor repairs.

5. Maintenance

A traditional sash window requires regular maintenance and inspection. Inability to maintain it properly can lead to broken sash cords, excessive wear on the glazing bars, and degradation of the paint and putty. The removal of the sashes could also result in structural movement within the frame that causes the sash to become misaligned and not closing properly. The sash could also get stuck in its open position, allowing the water and drafts to enter the building.

Damage to windows made of timber is often caused by water penetration. This can be avoided by thorough painting, periodic repairs, and removing the source of dampness. The paint can be removed to reveal 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 those remaining. This method of repair increases the amount of fabric that is left and is among the least invasive methods for treating decay of timber to timber.

A wood condenser made of resin is an alternative to traditional process of sanding or staining. This is brushed onto the surface of the timber to help stabilize it and shield it from further damage. It is particularly useful for treating sash and pulley cords, which can stop breakage.

It is essential to preserve and not replace any historic 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 recommended that the use of modern aluminum fittings like sash lifts and chain stays is avoided if at all possible since they can cause corrosion and damage to frames and sashes made of timber.