5 Things That Everyone Is Misinformed About Concerning Sash Windows Cambridge
How to Restore Timber Sash Windows in Cambridge
Many homes in Cambridge feature traditional sash window and the homeowners are proud of their appearance. Sash windows can become stuck and be difficult to open or close. This is usually due moisture which can cause the wood to expand.
Box sash windows were historically operated by chains or cotton cords, as well as lead weights. Modern sash window springs are hidden to avoid 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 dimensions. This lets the restoration be in line with modern energy requirements while ensuring compliance with conservation area regulations. It also provides windows that are superior to uPVC alternatives.
Sliding windows with sash were initially only used in large buildings or public buildings, though this changed when production was less expensive and craftsmen were able to produce larger frames with more glass. By the end of the 18th century, sash windows were the most sought-after wooden style in British homes. Sash windows were simple to operate and let light into rooms without the use of curtains.
The first windows were made of glass that was plain, but in the 17th century sash windows started to become more attractive. They began with colored glazing bars or mullions. They were expensive at the time, but as glass production became more efficient and cost-effective, they became a part of numerous period houses.
In the 19th century it was possible to manufacture large, strong glass that did not require supporting bars. This allowed the frame size to be enlarged more, which in turn meant more of a view out of the window. This was a very important innovation.
Another significant improvement was the introduction of the double-hung sliding windows at the end of the I920s and beginning of the I930s. This allowed both the lower and upper sash to be opened simultaneously and allowed for better ventilation to buildings.
The most commonly used type of sash is constructed from slow-growing deal (pine) however oak was used in the more luxurious buildings and in earlier examples. It is essential to keep the separation bead that separates the sashes. This will help prevent rattles and draughts. It is also essential that the idler and sash pulley wheels are kept in good condition as these help to operate the window.
2. Energy efficiency
Sash windows replaced hinged casements as clearer and larger sheets were made available. They were coated with plate glass that was set within rebated timber frames and secured with glazing sprigs and putty on both sides to ensure they were watertight. This kind of glazing gradually replaced the leaded light bulbs.

Sashes were introduced, which led to a greater demand for ironmongery. The most basic fittings were brass pulleys (and later cast-iron) weights as well as sash stoppers shutter hinges and handles and various fasteners used to secure the sashes. These were often decorated with motifs, inscriptions and designs that were engraved to identify the maker.
Sash windows are energy efficient when they are maintained regularly. However, without this maintenance they can become draughty and let in cold air. Putty and paint can also cause draughts. This can be remedied by making use of wood-to-timber repair tools that are proprietary.
The industry of replacement windows relies heavily on the notion that older windows are beyond repair and therefore cannot be maintained economically. However windows can be easily maintained with a bit of attention. These repairs can be costly and cause a lot of disruption in the home. To avoid this homeowners often opt for a complete replacement with PVC-u windows from one of the many 'one stop shop' installation companies. They can replace all windows in a home in one day, saving time and avoiding the need for multiple tradesmen to coordinate. They can also be supplied with energy-saving double-glazing to achieve higher energy efficiency ratings than are possible with traditional sash windows. However double-glazed windows cannot reproduce the proportions and section of traditional timber sashes.
3. Security
Traditional windows can be made more secure without compromising their appearance. Many types of ironmongery can be installed, including sash chains, mortice bolts, and sash locks. These can be put in place so that the window remains open for ventilation or cleaning. They are usually unobtrusive as they are designed to be used in conjunction with sash windows. They can be used alongside traditional sash window catches, which are required to be replaced with more robust versions (such ones with double screws) or sprung levers to reduce the risk of them being opened by hammering.
Sash-window frames are traditionally made from oak or slow-grown deal. If the glazing bars are in good condition and in good condition, they should be kept. Where possible, the timber cills should be replaced by wood that is in line with. Many PVC-u firms provide a one-stop shop installation service. They can take down and replace windows on a complete home in one day, without involving other tradespeople.
4. Ventilation
When sash windows were first introduced in the 17th century, they allowed a significant amount of light to flood into structures. In the 18th century, they had been adapted so that even more light could be let into rooms. Larger glazing panes were also produced. The result was a lighter look and windows that were more elegant.
The introduction of sash windows also demanded an entirely new range of ironmongery. The first pulleys were made of wood, while later Victorian ones could be made from brass or a mixture of lead and wood and there were a variety of shutter hinges and knobs. These ironmongery pieces should be kept clean and preserved in order to appreciate their exquisite design.
To ensure they remain in good condition, timber windows must be maintained. Lack of attention to them regularly can result in:
Sashes that don't slide effortlessly.
holes in the frame allow water that can cause decay and damage.
break down of putty, allowing water to penetrate, which could lead to decay of the frame and cill.
Steel casement windows gained popularity in the I920s and I930s because they were strong and slim, cheap and complemented the trend for healthy living. However, research has revealed that traditional softwood sash windows can be just as thermally efficient as double-glazed PVC-u windows and are more attractive than the sleek lines of modern casement windows.
The industry of replacement windows has made a significant effort to persuade house owners that their windows are dirty, noisy and beyond economic repair. The truth is that a lot of old timber windows are in good shape and with minor repairs can easily be repaired for many years to come.
5. Maintenance
The traditional sash windows require regular maintenance and inspection. If you do not maintain your sash window, it could lead to the sash cords breaking and the glazing bars wearing out excessively. It can also cause paint and putty degrade. The removal of sashes can also cause structural movement in the frame, causing the sash not to close properly. It is also possible for the sash be stuck or slammed into an open position and let water and draughts into the structure.
Damage to windows made of timber is often caused by moisture entry. This can be prevented by thorough painting, periodic repairs and the elimination of the cause of dampness. Wet rot can be identified by the wavy appearance of the paint that can be stripped away to reveal soft, rotting timber. Any timber that is rotting should be cut off and the affected area should be carefully scarfed or pieced in using replacements made of the same kind of timber as those remaining. This method of repair maximizes the amount original fabric and is among the most non-invasive methods to treat the rot that occurs between timber and timber.
A resin-based wood condenser is a viable alternative to traditional staining or sanding. This is brushed on the surface of the wood to protect it and stabilize it. It is especially beneficial for the treatment of pulley cords and sash which can help prevent breakage.
It is essential to preserve and not replace any historical ironmongery, like sash latches and stays. upvc windows cambridge repairmywindowsanddoors.co.uk is difficult to replace these items without altering their original design. It is recommended that the use of modern aluminium fittings like sash lifts and chain stays is avoided whenever possible since they can cause corrosion and deterioration to frames and sashes made from timber.