How to Restore Timber Sash Windows in Cambridge

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

Box sash windows were previously operated using chains or cotton cords as well as lead weights. Modern sash windows have hidden springs to overcome this issue.

1. Aesthetics

Timber sash windows, in contrast to PVC-u windows that are made in imperial sizes and are modular, can be reconstructed to original dimensions. This lets the restoration meet modern day energy requirements while complying with conservation areas regulations. It also offers a window that is far superior to the upvc windows cambridge alternatives.

Sliding windows with sash were initially only found in large buildings or public buildings, however this changed when production became less expensive and craftsmen could create larger frames using more glass. By the end of the 18th century, sash windows were the most popular wooden design in British homes. Sash windows were simple to operate and let light in rooms without the need for curtains.

The early windows were made of glass that was plain however, in the 17th century sash windows started to become more ornamental. They were initially made of colored glazing bars or mullions. These windows were quite expensive at the time but as glass production became more efficient and cheaper they became a feature of many of the period homes.

By the 19th century it was possible to manufacture large, strong glass that didn't require support bars. This allowed the frame size to be increased even more, which in turn allowed for a wider view from the window. This was a significant improvement.

The introduction of the double-hung sliding sash is another significant improvement that came about at 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 gave improved ventilation to buildings.

Oak was used in older and more luxurious buildings. A parting bead is used to separate the two sashes, and it is essential that it is maintained to prevent rattles and draughts. The idler wheels, sash pulleys and sash rollers also are 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 made of timber, which were which were pinned with glazing sprigs, and putty was sprayed on both sides of the frame for watertightness. This type of glazing gradually superseded the leaded light bulbs.

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 stoppers, shutter hinges and knobs as well as a range of fasteners used to keep the sashes to their the right place. They were often decorated with motifs, inscriptions or engravings that identified the maker.

With regular maintenance, sash windows are very energy efficient. However, if they are not maintained, they can become drafty and let in cold air. Draughts can also be caused by the breakdown of paint and putty. This issue can be fixed by using wood-to-timber products.

The market for replacement windows rests on the belief that older windows are old and beyond economical repair, whereas they can be maintained with just a little care. Repairs can be expensive and cause lots of disruption to the home. To prevent this homeowners often opt for a complete replacement with PVC-u windows from one the largest "one stop shop" installation companies. They can replace and remove all windows in a house in a single day, eliminating the need to co-ordinate different tradesmen, making the whole process much quicker. These windows can be equipped with energy-saving' double glazing to achieve more energy efficient ratings than a traditional windows with sash. However double glazing seal repairs-glazed windows cannot replicate the section and proportions of traditional timber double glazed windows cambridge sashes.

3. Security

Traditional windows can be made secure without compromising their appearance. Ironmongery such as sash chain, mortice bolts, and sash lock can be installed. They can be fitted in a manner that the plastic window repair can be opened to allow ventilation and cleaning. They are usually discrete since they are made to work with sash windows. They can be used alongside traditional sash-window catches, which should be replaced with more robust models (such ones with double glazed door seal repairs screws) or spring levers to decrease the possibility of them being opened by hammering.

Sash-window frames were typically constructed from slow grown deal or, in more prestigious houses they were made from oak. When glazing bars have survived they should be preserved, and, if feasible, the wood of the cill should be replaced with matching wood. PVC-u companies typically provide a one-stop shop installation service, removing and replacing windows on an entire home in one day, without the need to involve other tradespeople, or coordinate visits from different suppliers.

4. Ventilation

Sash windows were first introduced in the 17th century and allowed for a large amount of light to enter buildings. At the end of the 18th century, they were modified to let even more light into rooms and larger glass panes began to be made. The result was a more light appearance and windows that were more elegant.

Sash windows were introduced and required a new range ironmongery. Early pulleys were constructed from wood. Later Victorian ones were made of brass or a mixture of leaded and wood. There were also different types of shutter hinges and knobs. The ironmongery components should be maintained and cleaned so that the fine quality of their design can be appreciated.

Timber windows require regular maintenance to keep them in good condition. A lack of regular attention can result in:

Sashes that do not slide easily.

holes in the frame that admit water, which can 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 grew in popularity due to their strength, slim and cheap and were in line with the trend for healthy living. Research has proven that softwood sash window are just as effective as PVC-u windows and can even be more attractive.

The industry of replacement windows has made a significant effort to convince homeowners that their traditional windows are old, dirty, and beyond economic repair. Many old timber windows are repairable and can be used for many more years with minor repairs.

5. Maintenance

A traditional sash window needs regular maintenance and inspection. If you don't maintain your sash window, it could result in the sash cords breaking, and the glazing bars wearing out excessively. It could also cause the paint and putty to deteriorate. The removal of sashes can also result in structural movements within the frame, causing the sash to not close properly. The sash could also get stuck in the open position, which allows water and draughts into the property.

Moisture penetration is a frequent cause of damage to windows made of timber. This can be avoided by thorough painting, periodic repairs and elimination of the source of dampness. The paint can be removed to reveal the soft, decaying wood. The sections of timber that are rotten should be carefully cut out, and the affected area should be snared together or glued together by using replacements of the same kind as the timber that remains. This method of repair increases the amount of fabric used in the first place and is one of least invasive ways to treat timber-to-timber rot.

A resin-based wood condenser is a viable alternative to traditional staining or sanding. It is brushed onto the surface of the wood to protect it and strengthen it. It is particularly useful for the treatment of pulley cords and sash, where it can prevent breakage.

It is essential that any historic ironmongery such as sash stay and latches are kept and restored instead of replacing them. These items are difficult to replace without damaging the quality of the original design. It is recommended that the use of modern aluminum fittings, such as chain stays and sash lifts is avoided if at all possible as they can cause corrosion and deterioration to timber double glazed windows cambridge frames and sashes.