How to Restore Timber Sash Windows in Cambridge

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

Traditionally, box sash windows utilized chains or cotton cord and lead weights to operate. Modern sash windows come with hidden springs to address this issue.

1. Aesthetics

In contrast to PVC-u windows, which are manufactured according to imperial sizes that are modular, timber sash windows can be restored to their original size. This allows the restoration of timber sash windows to meet current energy requirements and to comply with conservation area regulations. It also provides a window that is far superior to upvc doors repairs door repair cost; www.meor.co.kr, options.

Sliding sash windows were initially only used in large structures or public buildings, however this changed as production became less expensive and craftsmen could create larger frames using more glass. By the late 18th century windows made of sash were the predominant design of wood in the majority of British homes. As they were easy to open, sash windows let light into rooms without the need for curtains.

Early windows were plain glass but by the 17th century sash windows were becoming more attractive with coloured glass bars and moulded mullions. They were expensive at the beginning but as glass production became cheaper and more efficient, they became commonplace in many historic homes.

By the 19th century it was possible to create large, strong glass that did not require supporting bars. This allowed for the frame to be made larger and, in turn, gave a better view. This was a significant innovation.

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

The most common kind of sash is made from slow grown deal (pine) however oak was utilized in more expensive buildings as well as in some earlier examples. A split bead divides the two sashes. It is vital that it is maintained in order to avoid rattles and drafts. It is also important that sash pulleys and idler wheels are kept in good condition as these help to operate the window.

2. Energy efficiency

Sash windows replaced hinged cases as larger and clearer sheets were made available. They were coated with plate glass that was set within rebated timber frames and secured with glazing sprigs, and then putty on both sides to create a watertight seal. This type of glazing gradually replaced the use of leaded lights.

The introduction of sashes led to a need for a much wider range of ironmongery, with the basic fittings being brass pulleys, lead (and later cast iron) weights, sash stops, shutter hinges and knobs, and a range of fasteners used to keep the sashes to their the right place. These were often decorated with motifs, inscriptions or engraved patterns that identified the maker.

Sash windows can be very energy efficient if they are maintained regularly. However, if they are not maintained, they may become drafty and let in cold air. Draughts can also be caused by the deterioration of paint and putty. This can be remedied by using wood-to-timber repair products that are specifically designed for this purpose.

The replacement window industry relies on the belief that older windows are old and beyond repair, but they are able to be maintained with a bit of care. However, these repairs are costly and can cause significant disruption to your home. Many homeowners decide to replace their windows using PVC-u from a "one-stop shop" installation company. They can replace all windows in a house in one day, thereby saving time and avoiding the need for multiple tradesmen to coordinate. They can also be fitted with 'energy saving' double-glazing, which can achieve more energy efficient ratings than those offered by traditional windows with sash. However, these double-glazed units cannot duplicate the proportions and section of historic timber sashes.

3. Security

It is possible to secure traditional windows without compromising their style. There are many types of ironmongery that are available including sash chains mortice bolts and locks for sash. They can be fitted in a way so that the window can be opened to allow ventilation and cleaning. These products are often not noticeable since they are designed to complement sash windows. They can be utilized in conjunction with traditional sash-window catches, which are required to be replaced with more robust versions (such ones that have double screws) or sprung levers to reduce the possibility of them being opened by hammering.

Sash-window frames are traditionally made from oak or slow-grown deal. If the glazing bars are intact and are not damaged, they should be left. Where feasible, the cills made of timber should be replaced by wood that is in line with. PVC-u companies typically offer a one stop shop installation service, removing and replacing windows on a complete home in one 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 into buildings. By the end 18th century, they had been adapted so that even more light could be let into rooms. Larger glazing panes were also made. The result was a lighter appearance and windows that had a higher level of elegance than they had before.

The introduction of sash windows also necessitated the creation of a new line of ironmongery. Early pulleys were constructed from wood. Later Victorian ones were made of brass or a mix of wood and leaded. There were also different kinds of knobs and shutter hinges. The ironmongery pieces need to be cleaned and preserved to appreciate their fine design.

Timber windows require regular maintenance to ensure they remain in good order. Lack of attention to them regularly could lead to:

Sashes that no longer slide smoothly.

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

The putty can be soaked by water and cause decay to the frame or cause cill.

In the I920s and the I930s steel casement windows gained popularity due to their strength slim and affordable and also matched the fashion for healthy living. However, research has revealed that traditional softwood sash windows are as efficient in thermal efficiency as double-glazed PVC-u windows and are more attractive than the modern sleek design of casement windows.

The industry of replacement windows has done a lot to convince homeowners that their windows are old, dirty, and beyond repair. Many old timber windows can be fixed and used for many more years with minor repairs.

5. Maintenance

A traditional sash window requires regular maintenance and inspection. If you don't maintain your window's sash, it could 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 that causes the sash to become misaligned and in a position that it is not able to close properly. The sash may also become stuck in the open position, which allows the water and drafts to enter the property.

Moisture penetration is a common cause of damage to windows made of timber. This can be prevented with thorough painting, regular repairs and elimination of the cause of dampness. The paint can be removed to reveal the soft, rotting wood. Any rotten timber sections should be cut off and the affected part carefully wrapped or pieced back using replacements made of the same type of wood as the ones that remain. This repair method increases the amount of fabric used in the first place and is among the least invasive ways to treat the rot that occurs between timber and timber.

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

It is crucial that any ironmongery from the past like sash stays and latches be kept and restored rather than replacing them. It can be difficult to replace these items without compromising their original design. It is also advised that modern aluminium fittings like sashlifts, as well as chainstays, be avoided as they could cause corrosion and deterioration of timber frames and sashes.