How to Restore Timber Sash Windows in Cambridge

Many homes in Cambridge have sash windows that are traditional and homeowners are proud of their appearance. Sash windows can become stuck and become difficult to open and close. This is typically due to moisture, which can cause the wood to swell.

Traditionally, windows made of box sash utilized chains or cotton cords and weights made of lead to operate. Modern window springs for sash windows are concealed to eliminate this issue.

1. Aesthetics

Unlike PVC-u windows that are manufactured according to imperial sizes that are modular the timber sash windows are able to be restored to their original sizes. This lets the restoration meet modern day energy requirements while complying with conservation regulations for the area. It also gives windows with a superior appearance than upvc window repairs near me alternatives.

Sliding windows with sash were initially only used in large buildings or public buildings. However, this changed when production became cheaper and artisans could make larger frames using larger glass. In the 18th century, windows made of sash were the predominant wooden windows And Doors Cambridge style in a majority of British properties. sash window repair cambridge windows were simple to operate and allowed light to enter rooms without the use of curtains.

The early windows were made of clear glass, but in the 17th century sash windows started to become more ornamental. They were initially made of colored glazing bars or mullions. These were very expensive at the time but as glass production improved and cost-effective, they were a common feature in numerous period houses.

In the 19th century, it became possible to create large, strong glasses that didn't need support bars. This allowed the frame's size to be increased even more, which in turn allowed for a wider view from the window. This was a significant advancement.

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

Oak was used for older and more luxurious buildings. It is crucial to maintain the parting bead which separates the sashes. This will prevent draughts and rattles. It is also crucial 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 cases as clearer and larger sheets became available. They were glazed with plate glass placed within timber frames with rebates and then pinned with glazing sprigs and putty on both sides to ensure they were watertight. This type of glass gradually replaced the use of leaded lights.

Sashes were introduced, which led to an increase in demand for ironmongery. The basic fittings included brass pulleys (and later cast-iron) weights as well as sash stoppers shutter hinges, handles and shutter hinges, and various fasteners used to secure the sashes. They were often decorated with motifs, inscriptions or designs that were engraved to identify the maker.

With regular maintenance, sash windows can be extremely energy efficient. But, if you don't maintain them, they can become draughty and let in cold air. Putty and paint can also cause draughts. It is possible to fix this issue with wood-to-timber products.

The replacement window industry relies on the belief that older windows are old and beyond economical repair, whereas they can be maintained with a bit of care. 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 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 different tradesmen to coordinate. These windows can be fitted with 'energy-saving double glazed door seal repairs-glazing to attain higher energy ratings than traditional sash window replacement cambridge. These double-glazed units are not able to replicate the proportions and section of sashes from old timber.

3. Security

Traditional windows can be made secure without compromising their appearance. Ironmongery such as mortice bolts, sash chain, and sash lock can be installed. These can be put in place to ensure that the window is still able to be opened for ventilation or cleaning. These products are often discrete since they are made to work with sash windows. They can be used in conjunction with traditional sash window catches. They should be replaced by more robust versions like those with double screws, or sprung levers to decrease the chance of being hit with hammers.

Sash-window frames are usually constructed from oak or slow-grown deal. When glazing bars have survived they should be preserved, and if it is feasible, the wood of the cill should be replaced with identical wood. Many PVC-U companies offer a one-stop installation service. They can remove and replace windows on an entire home in one day, without the need to involve other tradespeople.

4. Ventilation

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

The introduction of sash windows also demanded an entirely new range of ironmongery. Early pulleys were of wood, whereas later Victorian ones were made of brass or a combination of lead and wood, and there were a variety of shutter hinges and knobs. The ironmongery components should be kept and cleaned so that the quality of their design can be appreciated.

Timber windows require regular maintenance to keep them in good condition. Lack of regular attention may lead to:

Sashes that do not slide smoothly.

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

Water can penetrate the putty and cause decay to the frame or cill.

Steel casement windows were popular in the I920s & I930s because they were sturdy and slim, and also because they were cheap and matched the trend of healthy living. Research has proven that softwood sash window are as efficient as PVC-u windows and can even be more attractive.

The window replacement industry has made a significant effort to persuade house owners that their traditional windows are dirty, noisy and beyond repair. Many old windows made of timber can be fixed and used for a long time with minor repairs.

5. Maintenance

A traditional sash window needs regular maintenance and inspection. Inability to keep up with this can lead to the sash cords breaking, a lot of wear on the glazing bars and degradation of the paint and putty. The removal of sashes could also result in structural shifts within the frame, which causes the sash to be misaligned and not closing properly. The sash can also be stuck in its open position, allowing water and draughts to enter the building.

Damage to timber windows is often caused by water infiltration. This can be prevented by regular repairs by thorough painting and eliminating the source of dampness. Wet rot is easily identified due to the wavy appearance of the existing paint which can be stripped away to reveal rotting, soft timber. The sections that are rotting should be carefully cut out and the affected part should be snared together or pieced together using replacements of the same nature as the rest of the timber. This method of repair maximises the amount of fabric left, and is one of the least invasive methods for treating decay caused by timber.

A wood condenser made of resin is a viable alternative to traditional sanding or staining. The product is brushed on the surface of the wood to protect it and stabilize it. It is particularly beneficial in the treatment of pulleys and sash cords which can help prevent breakage.

It is crucial that any historic ironmongery like sash stays and latches are kept and rehabilitated instead of being replacing them. It is difficult to replace these items without compromising their original design. It is also 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 of frames and sashes made from timber.