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How to Restore Timber Sash Windows in Cambridge

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

Box sash windows were previously operated with chains, cotton cords and lead weights. Modern sash windows come with hidden springs to overcome this issue.

1. Aesthetics

Timber sash windows, in contrast to PVC-u windows that are made in imperial sizes, which are modular, can be restored to their original dimensions. This lets the restoration meet the current energy standards while complying with conservation regulations for the area. It also provides windows that have a superior appearance than upvc locksmith cambridge alternatives.

Sliding sash windows were initially only used in large structures or public buildings, though this changed as production was less expensive and craftsmen were able to create larger frames using more glass. By the end of the 18th century, sash windows had become the most popular wooden windows and doors cambridge design in British homes. Sash windows were easy to operate and let light into rooms without the use of curtains.

The early windows were made of plain glass however, by the 17th Century, sash windows began to be more decorative. They were initially made of colored glazing bars or mullions. They were costly at first, but as glass production became less expensive and more efficient, they became commonplace in many period houses.

In the 19th century, it was possible to manufacture large, strong glass that did not need support bars. This allowed the frame to be made bigger, which in turn gave a better view. This was a significant advancement.

The introduction of the double-hung sliding sash was a significant improvement that came about at the end of the I920s and the beginning of the I930s. This allowed both the upper and lower sash to be opened simultaneously, and allowed for better ventilation to the building.

Oak was used for older examples and for more prestigious buildings. A parting bead is used to separate the two sashes. It is essential that it is well maintained to prevent rattles and drafts. It is also important that the idler and sash pulley wheels are in good working order as they help to operate the window.

2. Energy efficiency

As clearer and larger glass sheets became available, sash window started replacing hinged casements. They were coated with plate glass that was placed within timber frames with rebates and secured with glazing sprigs, and then putty on both sides to make them watertight. This kind of glazing gradually replaced leaded lights.

The introduction of sashes created the need for a greater variety of ironmongery, including the most basic fittings, brass pulleys and lead (and later cast iron) weights, sash stoppers shutter hinges and knobs as well as a range of fasteners that secured the sashes to their place. These were often decorated with motifs, inscriptions, and engravings that identified the maker.

Sash windows can be very energy-efficient with regular maintenance. Without this maintenance, they can become draughty. Draughts can also be caused by the breakdown of paint and putty. It is possible to fix this issue 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. upvc doors repairs can be expensive and cause lots of disruption to the home. Many homeowners choose to replace their windows with PVC-u from a huge 'one-stop shop' installation company. They can take down and replace all the windows in an entire house in a single day, eliminating the need to coordinate multiple tradesmen and making the whole process much quicker. They can also be fitted with 'energy-saving' double-glazing to achieve more energy efficient ratings than are possible with traditional sash windows. However these double-glazed units are unable to replicate the section and proportions of traditional timber sashes.

3. Security

It is possible to secure windows that are traditional without compromising their appearance. A variety of ironmongery types can be fitted with sash chains, mortice bolts and locks for sash. These can be installed in a way that the window is still able to be opened for ventilation or for cleaning. These are typically minimal in appearance, as they are designed to fit the sash window seal repairs. They can be utilized in conjunction with traditional sash-window catches, which must be replaced by more robust models (such as those incorporating double screws) or spring levers to decrease the chance of them being hammered open.

Sash-window frames were typically constructed from slow grown deal or, in the more prestigious houses, from oak. When glazing bars have survived they should be preserved, and, if it is possible, the timber of the cill should be replaced by matching wood. Many PVC-U companies offer a one-stop installation service. They can remove and replace windows throughout a home in a single day, without involving any other tradespeople.

4. Ventilation

Sash windows were introduced in the 17th Century and allowed for a large amount of light to enter buildings. By the end of the 18th century they were modified to let more light into rooms, and larger glazing panes began to be manufactured. The result was a lighter look and windows with more elegance.

The introduction of sash windows also demanded the creation of a new line of ironmongery. Early pulleys could be made of wood. Later Victorian ones were made of brass or a mix of wood and lead. There were also various types of knobs and shutter hinges. These ironmongery pieces should be cleaned and preserved to appreciate their exquisite design.

Timber windows require regular maintenance to ensure they remain in good order. Inattention to maintenance could lead to:

Sashes that do not move effortlessly.

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

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

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

The industry of replacement windows has done a lot to persuade house owners that their old windows Cambridge are old, dirty, and beyond economic repair. The reality is that many older timber windows are in good shape and, with minor upvc door handle repairs near me, could easily be maintained for years to be.

5. Maintenance

Traditional sash windows require regular maintenance and inspection. Inability to maintain it properly could result in sash cords breaking, excessive wear on the glazing bars and deterioration of paint and putty. The removal of sashes could also result in structural movement within the frame that 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 be snagged or fixed in an open position and let water and draughts enter the property.

The damage to timber windows is usually caused by moisture penetration. This can be prevented by regular maintenance by thorough painting and eliminating the source of dampness. Wet rot can be identified due to the wavy appearance of the paint that can be removed to reveal rotting, soft timber. Any timber that is rotting should be cut off and the affected area should be carefully scarfed or pieced in using replacements made from the same type of timber as those remaining. This method of repair maximizes the amount original fabric and is one of most minimally invasive methods of treating the rot that occurs between timber and timber.

A resin-based wood condenser is an alternative to traditional sanding or staining. The product is brushed on to the surface of the wood to help stabilize it and shield it from further damage. It is particularly beneficial in the treatment of pulleys and sash cords which help stop breakage.

It is crucial that any historic ironmongery such as 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 recommended that the use of modern aluminium fittings, such as chain stays and sash lifts is avoided whenever possible since they can cause corrosion and deterioration to frames and sashes made from timber.