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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 their appearance. Sash windows can become stuck and become difficult to open or shut. This is usually due to moisture that can cause the wood to expand.

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

1. Aesthetics

In contrast to PVC-u windows, which are constructed according to imperial sizes that are modular, timber sash windows can be restored to their original dimensions. This allows the restoration of timber sash windows to meet the current energy requirements and conform to conservation area regulations. It also offers windows that are superior to the upvc window and door repairs options.

Sliding windows with sash were initially only used in large buildings or public buildings, however the production process was less expensive and craftsmen were able to produce larger frames with more glass. By the end of the 18th century, sash windows had become the most sought-after wooden style in British homes. Sash windows were easy to operate and let light into rooms without the use of curtains.

The first windows were made of clear glass however, by the 17th Century, sash windows began to become more attractive. They began with colored glazing bars, also known as mullions. These were very expensive at the time, but as glass production became more efficient and less expensive, they became a part of many of the period homes.

In the 19th century, it was possible to produce large, sturdy glasses that didn't require support bars. This allowed the frame size to be increased even further, which gave a better view out of the window. This was a significant innovation.

Another important improvement was the introduction of the double glazed door repairs-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 allowed for better ventilation to buildings.

Oak was used in older examples and more prestigious buildings. A split bead divides the two sashes, and it is vital that it is well maintained to prevent rattles and draughts. The sash pulleys, idler wheels and sash rollers are vital to the operation of the window.

2. Energy efficiency

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

Sashes were introduced, which resulted in an increase in demand for ironmongery. The most common fittings included brass pulleys (and later cast-iron) weights as well as sash stoppers shutter hinges and handles as well as a variety of fasteners used to fix the sashes. They were often decorated with patterns, inscriptions and patterns engraved to identify the maker.

With regular maintenance, sash windows are extremely energy efficient. However, if they are not maintained, they can become draughty and let in cold air. Putty and paint can cause draughts. You can fix this problem by using wood-to-timber products.

The industry of replacement windows relies heavily on the belief that old windows are damaged beyond repair and cannot be maintained economically. However windows can be easily maintained with a little attention. However, these repairs can be costly and cause substantial disruption to the home. To avoid this homeowners, many prefer to replace their windows with PVC-u windows from one of the many 'one stop shop' installation companies. These can remove and replace all windows in an entire house in a single day, avoiding the need to coordinate multiple tradesmen and making the entire process much quicker. They are also available with 'energy saving' double-glazing to get greater energy efficiency than those offered by traditional sash windows. Double-glazed windows aren't able to replicate the proportions or section of sashes from old timber.

3. Security

Traditional windows can be made more secure without compromising their aesthetics. Ironmongery like mortice bolts, sash chain and sash lock could be installed. These can be put in place so that the window remains capable of being opened for ventilation or for cleaning. These are typically unobtrusive, as they are designed to complement the sash window. They can be used alongside traditional sash-window catchers, which should be replaced with more robust models (such ones that have double screws) or spring levers to decrease the chance of them being opened by hammering.

Sash-window frames are usually made of oak or slow-grown deal. Where glazing bars have survived they should be kept, and where it is possible, the timber of the cill should be replaced with the same wood. PVC-u companies typically provide a one-stop shop installation service, removing and replacing windows on an entire home in a single day without the need to involve other tradespeople, or coordinate visits from different suppliers.

4. Ventilation

Sash windows were introduced in the 17th century and allowed for a significant amount of light to be absorbed into buildings. By the end of the 18th century they were altered to allow more light into rooms, and larger glazing panes began to be manufactured. The result was a much lighter appearance and windows with a greater quality of design than before.

The introduction of sash windows also required a new range of ironmongery. Early pulleys were made from wood, while later Victorian ones could be made of brass or a combination of lead and wood, and there were many kinds of shutter hinges and knobs. Ironmongery elements must be maintained and cleaned so that the fine quality of their design can be appreciated.

Timber windows require regular maintenance to ensure they remain in good condition. Lack of regular attention may lead to:

Sashes that do not move easily.

holes in the frame that admit water causing damage and decay.

break down of the putty and allow water to penetrate, which could lead to decay of the frame and cill.

In the I920s and the I930s steel casement windows increased in popularity because they were strong slim and inexpensive and were in line with the trend for healthy living. Research has proven that softwood sash window scratch repair are just 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 old windows are dirty, noisy and beyond repair. The truth is that a lot of old timber windows are in good condition and, with minor repairs, could easily be serviceable for many years to be.

5. Maintenance

The traditional sash windows require regular maintenance and inspection. If you do not maintain your window's sash, it could lead to the sash cords breaking and the glazing bars wearing out excessively. It could also cause paint and putty deteriorate. The removal of sashes may also cause structural movement within the frame which causes the sash to be misaligned and in a position that it is not able to close properly. It is also possible for the sash to be snagged or slammed into an open position, which can let water and draughts in the structure.

Damage to timber windows is usually caused by moisture entry. This can be avoided with regular maintenance as well as thorough painting, and then removing the cause of dampness. The paint can be removed to reveal the soft, rotting wood. The sections of timber that are rotten should be carefully cut out, and the affected area should be scarfed together or glued together using replacements of the same nature as the rest of the timber. This method of repair increases the amount of fabric left, 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. The product is brushed on the surface of the wood to protect it and strengthen it. It is particularly useful for the treatment of pulleys and sash cords which help prevent breakage.

It is essential that any old ironmongery like sash stays and latches are kept and restored instead of replaced. It is difficult to replace these items without compromising their original design. It is recommended that the use of modern aluminium fittings such as chain stays and sash lifts should be avoided if possible since they can cause corrosion and damage to timber frames and sashes.