Indisputable Proof That You Need Sash Windows Cambridge
How to Restore Timber Sash Windows in Cambridge
Many homes in Cambridge have traditional sash windows and homeowners are proud of how they look. Sash windows can become stuck and are difficult to open and close. This is often due to moisture, which can cause the timber to expand.
Traditionally, windows made of box sash utilised chains or cotton cords and lead weights to operate. Modern sash windows come with hidden springs to solve this problem.
1. Aesthetics
Timber sash windows, in contrast to PVC-u windows, which are made in imperial sizes that are modular, are able to be restored to their original size. This permits the re-installation of timber sash windows to comply with current energy standards and comply with conservation regulations for areas. It also provides a window with a far superior appearance than uPVC alternatives.
Sliding sash windows were initially only found in large buildings or public buildings, though this changed as production became cheaper and craftsmen could produce larger frames with more glass. At the close of the 18th century, sash windows had become 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.
Early windows were simple glass but by the 17th century, sash windows began to become more decorative with coloured glazing bars and moulded mullions. They were expensive at the time, but as glass production became more efficient and less expensive, they became a feature of many period houses.
In the 19th century, it became possible to make large, strong glasses that didn't need support bars. This allowed the frame size to increase more, which in turn meant more of a view out of the window. This was a significant advancement.
The introduction of the double-hung sliding sash was a important improvement that was made towards the end of the I920s and 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 for older examples and more prestigious buildings. A parting bead separates the two sashes. It is essential that it is maintained in order to avoid rattles and draughts. The sash pulleys, idler wheels and sash rollers are also crucial to the functioning of the window.
2. Energy efficiency
As clearer and larger sheets of glass became available, sash window began replacing hinged casements. Plate glass was placed in frames of timber that were rebated, then secured with glazing sprigs and putty was then sprayed onto the frame's sides for watertightness. This type of glass gradually replaced the leaded light bulbs.
The introduction of sashes led to an 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, and a range of fasteners that secured the sashes into place. They were often decorated with motifs, inscriptions, and patterns engraved to identify the maker.
With regular maintenance, sash windows can be very energy efficient. But, if you don't maintain them, they can become draughty and let in cold air. Paint and putty may cause draughts too. window glass replacement cambridge can be fixed by using wood-to-timber repair products that are specifically designed for this purpose.
The market for replacement windows rests on the perception that old windows are damaged and beyond economical repair, but they can be easily maintained with a bit of care. These repairs can be costly and cause lots of disruption to the home. Many homeowners opt to replace their windows with PVC-u from a huge "one-stop shop" company for installation. They can replace all windows in a house in a single day, saving time and avoiding the need for multiple tradesmen to coordinate. These windows can be fitted with 'energy-saving double glazing to get higher energy ratings than the traditional windows with sash. However, these double-glazed units cannot reproduce the proportions and section of traditional timber sashes.
3. Security
It is possible to secure windows that are traditional without compromising their style. Ironmongery, such as sash chain, mortice bolts, and sash lock can be put in place. They can be fitted in a way that the window remains open for ventilation or cleaning. They are usually not noticeable since they are designed to be used in conjunction with sash windows. They can be used alongside traditional sash window catches, which must be replaced by more robust versions (such ones that have double screws) or sprung levers to reduce the possibility of them being hammered open.
Sash-window frames were traditionally constructed from slow grown deal or, in the more luxurious homes, from oak. If the glazing bars remain intact and in good condition, they should be kept. Where it is possible, the cills of the timber should be replaced by timber that is compatible with. PVC-u companies typically offer a one stop shop installation service, removing and replacing windows across a house in a day without the need to engage 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 adapted to allow more light into rooms and larger glass panes began to be produced. The result was a much more streamlined appearance, and windows with a greater level of elegance than they had before.
Sash windows were introduced and required a new type of ironmongery. Early pulleys were constructed out of wood. Later Victorian ones were made of brass or a mixture of wood and leaded. There were also a variety of types of knobs and shutter hinges. These ironmongery pieces must be cleaned and preserved to appreciate their exquisite design.
Timber windows require regular maintenance to ensure they remain in good condition. Inattention to maintenance can result in:
Sashes that don't slide effortlessly.
holes in the frame that admit water, which can cause damage and decay.
Water can penetrate the putty and cause decay to the frame or the cill.

Steel casement windows became popular in the I920s & I930s because they were strong and slim, and also because they were cheap and complemented the trend for healthy living. However, research has proven that traditional softwood sash windows are just as efficient thermally as PVC-u double-glazed windows, and may be more appealing than the sleek lines of contemporary casement windows.
The replacement window industry did a lot to convince homeowners that their old windows were decayed, drafty and beyond economical repair. However, many older windows made of wood are in good shape and, with minor repairs, could easily be maintained for years to come.
5. Maintenance
The traditional sash windows need regular maintenance and inspection. If you don't maintain your sash window, it can 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 could also result in structural movement within the frame which causes the sash to move out of alignment and in a position that it is not able to close properly. It is also possible for the sash to be snagged or fixed in an open position and let water and draughts enter the property.
Damage to timber windows is often caused by moisture infiltration. This can be prevented by regular repairs as well as thorough painting, and then removing the cause of dampness. The paint can be removed to expose the soft, decaying wood. The rotten timber sections should be carefully cut out and the affected part should be scarfed or pieced together with replacements of the exact nature as the rest of the timber. This method of repair maximizes the amount of original fabric left, and is one of the least invasive ways of treating decay caused by timber.
A wood condenser made of resin is an alternative to traditional sanding or staining. The product is brushed on to the surface of the wood to stabilize it and protect it from further damage. It is particularly beneficial for the treatment of pulleys and sash cords which can help stop breakage.
It is crucial that any old ironmongery such as sash stay and latches be kept and restored instead of replacing them. These items are difficult to replace without harming the the original design. It is also advised that fittings made of aluminum, such as sashlifts and chainstays, are avoided since they can cause deterioration and corrosion of timber frames and sashes.