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How to Restore timber double glazed windows cambridge Sash Windows in Cambridge

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

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

1. Aesthetics

Timber sash windows, in contrast to PVC-u windows, which are made in imperial sizes that are modular, can be restored to their original dimensions. This allows for the restoration of timber sash windows in order to meet the current energy requirements and to comply with conservation regulations for areas. It also offers windows that are superior to upvc repairs alternatives.

Sliding windows with sash were initially intended for large structures or public buildings. However, this changed when production became less expensive and craftsmen could produce larger frames with larger glass. At the end of the 18th century, sash windows had become the most popular wooden style in British homes. Since they were easy to open sash windows allowed light into rooms without curtains.

The first windows were made of plain glass however, by the 17th Century, sash windows began to become more attractive. They began with colored glazing bars or mullions. These windows were quite expensive at the time, but as glass production improved and less expensive, they were a common feature in 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 increase further and this in turn meant more of a view out of the Window Caulking. This was a significant innovation.

Another significant improvement was the introduction of the double-hung sliding windows at the end of I920s and the beginning of I930s. 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.

Oak was used in older examples and for more prestigious buildings. A parting bead separates the two sashes, and it is important that this is maintained to prevent rattles and drafts. It is also important that sash pulleys and idler wheels are in good condition as these help to operate the window supplier cambridge.

2. Energy efficiency

Sash windows replaced hinged casements as clearer and larger sheets became available. Plate glass was set into rebated timber frames, pinned with glazing sprigs and putty was sprayed on both sides of the frame for watertightness. This type of glazing gradually replaced the leaded light bulbs.

The introduction of sashes resulted in a need for a much wider range of ironmongery, with the basic fittings being brass pulleys and lead (and later cast iron) weights, sash stoppers, shutter hinges and knobs and a variety of fasteners used to keep the sashes into the right place. They were often decorated with motifs, inscriptions and designs that were engraved to identify the maker.

Sash windows can be very energy efficient when they are maintained regularly. If they are not maintained they could become noisy. Paint and putty can cause draughts too. You can fix this problem by using wood-to-timber products.

The industry of replacement windows is based on the belief that older windows are old and beyond repair, whereas they can be maintained with just a little care. However, these repairs can be expensive and involve considerable disruption to the home. Many homeowners opt to replace their windows using PVC-u from a "one-stop shop" installation company. They can replace all windows in a home in a single day, saving time and eliminating the need for different tradesmen to coordinate. They are also available with 'energy saving' double-glazing, which can achieve more energy efficient ratings than are possible with traditional windows with sash. Double-glazed windows aren't capable of resembling the proportions and section of the sashes made of timber from the past.

3. Security

Traditional windows can be made more secure without compromising their aesthetics. A variety of ironmongery types are available with sash chains, mortice bolts, and sash locks. These can be put in place to ensure that the window is still capable of being opened to allow ventilation or cleaning. They are generally unobtrusive, as they are designed to complement the sash window. They can be used in conjunction with traditional sash window catches. They should be replaced by more robust models like those with double screws or spring levers, to minimize the possibility of being struck by hammers.

Sash-window frames were made from slow-growing deal or, in more prestigious houses, from oak. Where glazing bars have survived they should be kept, and if it is possible, the timber of the cill should be replaced by the same wood. PVC-u companies often provide a one-stop shop installation service, which includes removing and replacing windows on an entire house in a day without the need to involve other tradespeople, or coordinate visits from a number of different suppliers.

4. Ventilation

When sash windows were first introduced in the 17th century they allowed a substantial amount of light into buildings. In the 18th century, they had been modified to allow more light could be let into the rooms. Larger glazing panes were also made. The result was a much lighter appearance and windows with a higher 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 were made from brass or a mixture of lead and wood and there were many kinds of shutter hinges and knobs. These ironmongery pieces must be cleaned and preserved to appreciate their exquisite design.

Timber windows require regular maintenance to keep them in good shape. A lack of attention to them regularly could cause:

Sashes that no longer slide easily.

holes in the frame that allow water causing 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 increased in popularity because they were strong slim and affordable and also matched the fashion for healthy living. Research has shown that softwood sash window are just as effective as PVC-u windows, and may even be more attractive.

The replacement window industry has done a lot to persuade house owners that their windows are rotten, draughty and beyond economic upvc door repair. The reality is that many older timber windows are in good shape and with minor repairs can easily be repaired for many years to come.

5. Maintenance

A traditional sash window needs regular maintenance and inspection. If you don't maintain your sash window, it can cause the sash cords breaking, and the glazing bars deteriorating excessively. It can also cause paint and putty to deteriorate. The removal of the sashes can also result in structural movement within the frame which causes the sash to be misaligned and not closing properly. The sash may also become stuck in the open position, which allows water and draughts to enter the building.

Damage to windows made of timber is usually caused by moisture infiltration. This can be avoided by thorough painting, regular repairs, and removing the source of dampness. The paint can be removed to reveal the soft, rotting wood. Any timber that is rotting should be cut out and the affected area should be carefully cut or pieced with replacements made of the same kind of timber as the ones remaining. This method of repair increases the amount of original fabric retained and is one of the least invasive methods of treating timber-to-timber decay.

The use of a resin-based wood consolidant is another alternative to traditional staining and sanding. It is brushed on the surface of the wood to stabilize it and shield it from further damage. It is particularly beneficial in the treatment of sash cords and pulleys which can help prevent the breakage.

It is crucial that any old ironmongery such as sash stays and latches be kept and rehabilitated instead of being replaced. These items can be very difficult to replace without harming the quality of the original design. It is also recommended that modern aluminium fittings like sashlifts, as well as chainstays, are avoided since they could cause corrosion and deterioration of timber frames and sashes.