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How to Restore Timber Sash Windows in Cambridge

Many homes in Cambridge have sash windows that are traditional and homeowners are proud of the way they look. However, sash windows can become stuck and difficult to open or close. This is usually due moisture, which can cause the wood to swell.

Box sash windows were historically operated by chains, cotton cords and lead weights. Modern window springs for sash windows are concealed to eliminate this issue.

1. Aesthetics

Timber sash windows cambridge, in contrast to PVC-u windows that are made in imperial sizes and are modular, are able to be restored to their original size. This allows the restoration to meet the current energy standards while complying with conservation area regulations. It also gives windows that have a superior appearance than uPVC alternatives.

Sliding sash windows were initially only found in large buildings or public buildings, however this changed as production became less expensive and craftsmen could create larger frames using more glass. By the end of the 18th century, sash windows had become the most sought-after wooden style in British homes. As they were easy to open, sash windows let light into rooms without the need for curtains.

The first windows were made of clear glass, but by the 17th Century, sash windows began to become more attractive. They were initially made of colored glazing bars, also known as mullions. They were expensive initially, but as glass production became cheaper and more efficient, they were commonplace in many historic homes.

In the 19th century, it was possible to make large, strong glasses that didn't require support bars. This allowed the frame size to increase further and this in turn allowed for a wider view from the window. This was a very important innovation.

The introduction of the double-hung sliding sash was a important improvement that was made in the I920s and at the beginning of the I930s. The double-hung sliding sash was another important improvement that was made at the end of the I920s and beginning of the I930s.

The most commonly used type of sash is constructed of slow-growing deal (pine) but oak was also used in more expensive buildings as well as in some earlier examples. It is crucial to maintain the separation bead that separates the sashes. This will stop draughts and rattles. It is also important that the idler and sash pulley wheels are in good shape as they help to operate the window.

2. Energy efficiency

Sash windows replaced hinged casements as larger and clearer sheets became available. They were glazed with plate glass set in timber frames with rebates and secured with glazing sprigs and putty on both sides to make them watertight. This kind of glazing gradually superseded the leaded light bulbs.

Sashes were introduced, which led to increased demand for ironmongery. The most common fittings included brass pulleys (and later cast-iron) weights and stoppers for sashes, shutter hinges and handles and a variety of fasteners used to secure the sashes. They were often decorated with patterns, inscriptions and engravings to identify the maker.

With regular maintenance, sash windows are extremely energy efficient. If they are not maintained, they can become noisy. Draughts can also be caused by the breakdown of putty and paint. You can fix this problem by using wood-to-timber products.

The industry of replacement windows relies heavily on the notion that old windows are damaged beyond repair and cannot be maintained economically. However they can be maintained with a little attention. These repairs can be expensive and cause lots of disruption to the home. To avoid this, many homeowners prefer to replace their windows with PVC-u windows made by one of the large '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 achieve higher energy ratings than the traditional windows made of sash. However these double-glazed units are unable to replicate the section and proportions of historic timber sashes.

3. Security

It is possible to secure traditional windows without compromising their appearance. A variety of ironmongery types can be fitted, including sash chains, mortice bolts, and sash locks. They can be positioned in such a way that the window is able to be opened for ventilation and cleaning. They are generally not noticeable, since they are designed to complement the sash window. They can be used in conjunction with traditional sash-window catchers that are required to be replaced with more robust models (such as those incorporating double screws) or spring levers to decrease the chance of them being hammered out.

Sash-window frames were typically made from slow-growing deal or, in more prestigious houses, from oak. If the glazing bars remain in good condition and in good condition, they should be kept. Where possible, the timber cills should be replaced with wood that is in line with. Many PVC-u firms offer a one-stop installation service. They can take out and replace windows throughout a house in just 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 glass panes began to be manufactured. The result was a lighter appearance and windows that were more elegant.

The introduction of sash windows also necessitated an entirely new range of ironmongery. Early pulleys were constructed out of 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. The ironmongery components should be retained and cleaned down to ensure that the exquisite quality of their design can be appreciated.

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

sashes that no longer slide easily.

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

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

In the I920s and the I930s steel casement windows increased in popularity due to their strength slim and inexpensive, and complemented the vogue for healthy living. Studies have shown that softwood sash window are as efficient as PVC-u windows and can even be more attractive.

The replacement window industry has done a great job convincing homeowners that their old windows were rotten drafty, noisy and beyond repair. However, many older timber windows are in good shape and with minor repairs can easily be serviceable for many years to come.

5. Maintenance

The traditional sash windows need regular maintenance and inspection. If you do not maintain your sash window seal repairs (have a peek at this site), it could lead to the sash cords breaking and the glazing bars wearing out excessively. It can also cause the paint and putty to become damaged. The removal of sashes may also cause structural movement within the frame that causes the sash to be misaligned and unable to close correctly. The sash may also become stuck in the open position, which allows water and draughts into the building.

Moisture penetration is the most common cause of damage to timber windows. This can be prevented by thorough painting, periodic repairs and the elimination of the source of dampness. Wet rot is recognisable by the wavy look of the existing paint which can be removed to reveal soft, rotting wood. The rotten timber sections should be carefully cut out and the affected part should be scarfed or glued together by using replacements of the same type as the remaining timber. This method of repair maximizes the amount original fabric and is among the least invasive ways to treat the rot that occurs between timber and timber.

The use of a resin-based wood consolidant is another alternative to the traditional method of staining and sanding. The product is brushed on the surface of the wood to protect it and stabilize it. It is especially beneficial for the treatment of pulley cords and sash where it can prevent breakage.

It is essential that any ironmongery from the past like sash stays and latches are retained and rehabilitated instead of being replacing them. It can be difficult to replace these items without altering their original design. It is also advised that fittings made of aluminum, such as sashlifts and chainstays, be avoided as they can cause deterioration and corrosion of timber frames and sashes.