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How to Restore Timber Sash Windows in Cambridge

Many homes in cambridge windows and doors have traditional sash windows and the homeowners are proud of their appearance. However, sash windows can get stuck and be difficult to open or close. This is typically due to moisture, which can cause the wood to swell.

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

1. Aesthetics

In contrast to PVC-u windows, which are manufactured according to the modular imperial size Timber sash windows can be restored to their original sizes. This allows the restoration to meet the current energy standards while complying with conservation area regulations. It also comes with a window that is far superior to the Upvc Repairs options.

Sliding sash windows were initially only used in large structures or public buildings, though this changed as production became cheaper and craftsmen could make larger frames with more glass. By the end of the 18th century, sash windows were the most popular wooden style in British homes. Since they were easy to open, sash windows let light into rooms without curtains.

The early windows were made of glass that was plain, but by the 17th Century, sash windows began to become more attractive. They began with colored glazing bars or mullions. They were costly at first, but as glass production became cheaper and more efficient, they became commonplace in many period houses.

In the 19th century, it became possible to make large, sturdy glasses that didn't require support bars. This allowed for the frame to be made larger which, in turn, provided an improved view. This was a significant innovation.

Another significant improvement was the introduction of the double-hung sliding window at the end of I920s and at the beginning of I930s. This allowed both the upper and lower sash to be opened simultaneously, and allowed for better ventilation to buildings.

Oak was used for older examples and for more prestigious buildings. A parting bead separates the two sashes, and it is essential that it is well maintained to prevent rattles and drafts. It is also crucial that the idler and sash pulley wheels are kept in good condition as these assist in operating the window.

2. Energy efficiency

As larger and clearer sheets of glass were made available, sash windows started replacing hinged casements. They were made of plate glass, set within rebated timber frames and then pinned with glazing sprigs, with putty on both sides to ensure they were watertight. This type of glazing gradually replaced the leaded light bulbs.

The introduction of sashes led to an need for a greater variety of ironmongery, with the most basic fittings being brass pulleys as well as lead (and later cast iron) weights, sash stops shutter hinges, knobs and shutters, and a range of fasteners used to keep the sashes into place. These were usually decorated with motifs, inscriptions, and engravings to identify the maker.

Sash windows can be very energy efficient when they are maintained regularly. However, without this maintenance they can become drafty and let in cold air. Putty and paint can cause draughts too. This can be fixed by making use of wood-to-timber repair tools that are proprietary.

The market for replacement windows rests on the belief that traditional windows are rotten and beyond economical repair, but they can be easily maintained with just a little care. These repairs can be expensive and cause many disruptions in the home. Many homeowners opt to replace their windows using PVC-u from a large "one-stop shop" company for installation. They can replace and remove all the windows in a house within a single day, avoiding the need to coordinate different tradesmen and making the whole process much quicker. They are also available with 'energy-saving' double glazed door seal repairs-glazing to achieve higher energy efficiency ratings than are possible with traditional windows made of sash. These double-glazed units are not capable of replicating the proportions and section of sashes from old timber.

3. Security

Traditional windows can be secured without compromising their appearance. Ironmongery, such as mortice bolts, sash chain and sash lock could be installed. These can be installed 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 complement sash windows. They can be used in conjunction with traditional sash window catches. They should be replaced with more robust models like those with double screws or spring levers in order to reduce the risk of being hammered.

Sash-window frames are usually constructed from oak or slow-grown deal. If the glazing bars remain in good condition and are not damaged, they should be left. Where it is possible, the cills of the timber should be replaced with wood that is in line with. Many PVC-u firms provide a one-stop shop installation service. They can take out and replace windows throughout a home in one day, without involving other tradespeople.

4. Ventilation

When sash windows were first introduced in the 17th century, they allowed a significant amount of light into the buildings. At the end of the 18th century, they were altered to allow more light into rooms, and larger glazing panes began to be produced. The result was a more light appearance and windows with more elegance.

The introduction of sash windows also necessitated a new range of ironmongery. Early pulleys could be made of wood. Later Victorian ones were made of brass or a mixture of wood and leaded. There were also different types 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 condition, timber windows require regular maintenance. Lack of regular attention may cause:

Sashes that do not slide easily.

holes in the frame allow water that can cause decay and damage.

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

Steel casement windows gained popularity in the I920s & I930s because they were strong and slim, and also because they were cheap and matched the trend of healthy living. However, research has proven that traditional softwood sash windows can be just as thermally efficient as double-glazed PVC-u windows and may be more appealing than the sleek lines of modern casement windows.

The replacement window industry has done a lot to persuade house owners that their traditional windows are rotten, draughty and beyond repair. However, many older windows made of timber are in good shape and, with minor upvc repairs near me, could easily be serviceable for many years to be.

5. Maintenance

A traditional sash window requires regular maintenance and inspection. If you don't maintain your sash window, it could 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 can also cause structural movement in the frame, causing the sash not to close properly. It is also possible for the sash be snagged or slammed into an open position and let water and draughts enter the structure.

Moisture penetration is a common cause of damage to timber windows. This can be avoided by thorough painting, periodic repairs and elimination of the source of dampness. Wet rot is recognisable by the wavy appearance of the paint, which can be stripped to reveal soft, rotting wood. The sections that are rotting must be removed with care, and the affected area should be snared together or glued together with replacements of the exact kind as the timber that remains. This method of repair maximises the amount of fabric retained and is among the least invasive methods for treating timber-to-timber decay.

A wood condenser that is based on resin is a viable alternative to traditional process of sanding or staining. This is brushed onto the surface of the wood to stabilise 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 historic ironmongery like sash stays and latches be kept and restored rather than replaced. It is difficult to replace these items without altering their original design. It is recommended that the use of modern aluminum fittings, such as chain stays and sash lifts is avoided whenever possible as they can cause corrosion and deterioration to frames and sashes made of timber.