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How to Restore Timber Sash Windows in CambridgeMany homes in Cambridge have sash windows with traditional designs and homeowners are proud of how they appear. However, sash windows may get stuck and be difficult to open or close. This is often due moisture that can cause the timber to swell.Box sash windows were traditionally operated with chains or cotton cords, as well as weights made of lead. Modern sash window springs are hidden to solve this problem.1. upvc door repair cost , in contrast to PVC-u windows that are made in imperial sizes, which are modular, are able to be restored to original dimensions. This allows the restoration of timber sash windows to meet current energy requirements and to comply with conservation regulations for areas. It also provides a window with a far superior appearance than the uPVC alternatives.Sliding sash windows were originally only found in large buildings or public buildings, but this changed as production became less expensive and craftsmen could produce larger frames with more glass. By the late 18th century Sash windows were the most popular wooden design in most British properties. Since they were easy to open sash windows allowed light into rooms without the need for curtains.Early windows were plain glass, but in the 17th century, sash windows started to become more attractive with coloured glass bars and moulded mullions. They were costly initially, but when glass production became less expensive and more efficient, they became an integral feature in many period houses.In the 19th century, it was possible to produce large, strong glasses that didn't need support bars. This allowed the frame to be made larger, which in turn gave a better view. This was a significant innovation.The introduction of the double-hung sliding sash was a important improvement that occurred at 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 in older and more luxurious buildings. A split bead divides the two sashes. It is vital that it is maintained in order to avoid rattles and draughts. It is also important that the idler and sash pulley wheels are in good shape as they aid in operating the window.2. Energy efficiencySash windows were replaced by hinged casements as larger and clearer sheets became available. Plate glass was set into rebated timber frames, which were pinned with glazing sprigs, and putty was sprayed on the frame's sides to ensure watertightness. This type of glazing gradually superseded led lights.Sashes were introduced, which led to a greater demand for ironmongery. The most basic fittings were brass pulleys (and later cast-iron) weights, sash stoppers, shutter hinges and handles as well as a variety of fasteners used to secure the sashes. These were often decorated in motifs, inscriptions, and engraved patterns to identify the maker.With regular maintenance, sash windows are extremely energy efficient. However, without this maintenance they may become drafty and let in cold air. Paint and putty may also cause draughts. This issue can be fixed by using wood-to-timber products.The industry of replacement windows relies heavily on the notion that old windows are damaged beyond repair and are not able to be maintained economically. However they can be maintained with a bit of attention. However, these repairs can be expensive and involve considerable disruption to the home. Many homeowners choose to replace their windows with PVC-u from a large 'one-stop shop' installation company. They can replace all windows in a home in a single day, saving time and eliminating the need for multiple tradesmen to coordinate. These windows can be fitted with 'energy-saving' double glazing to achieve higher energy ratings than traditional sash window. However, these double-glazed units cannot reproduce the proportions and section of historic timber sashes.3. SecurityIt is possible to secure traditional windows without compromising on their aesthetics. There are many types of ironmongery that are available including sash chains mortice bolts, and locks for sash. They can be positioned in a way so that the window can still be open for ventilation and cleaning. These products are often unobtrusive as they are designed to work with sash windows. They can be used with traditional sash window catch. These are best replaced with more robust models, such as ones that have double screws or sprung levers to decrease the possibility of being hit with hammers.Sash-window frames are usually constructed from oak or slow-grown deal. When glazing bars have survived they should be kept, and where possible, the timber of the cill should be replaced with the same wood. Many PVC-U companies provide a one-stop shop installation service. They can take down and replace windows throughout a home in one day, without involving any other tradespeople.4. VentilationSash windows were introduced in the 17th Century and allowed for a significant amount of light into buildings. At the end of the 18th century they were adapted to allow even more light into rooms and larger glazing panes began to be manufactured. The result was a more light appearance and windows that were more elegant.Sash windows were introduced and required a new type of ironmongery. Early pulleys could be made out of wood. Later Victorian ones were made of brass or a combination of wood and lead. There were also a variety of kinds of shutter hinges and knobs. Ironmongery elements must be kept and cleaned to ensure that the exquisite quality of their design can be appreciated.Timber windows require careful maintenance to ensure they remain in good order. Lack of regular attention may result in:Sashes that don't slide smoothly.Holes in the frame that allow water to get in and cause damage and decay.break down of putty allowing water to penetrate, which could cause decay in the frame and cill.In the I920s and I930s, steel casement windows increased in popularity due to their durability slim and affordable, and complemented the vogue for healthy living. However, research has proven that traditional softwood sash windows are just as efficient in thermal efficiency as double-glazed PVC-u windows and may be more appealing than the sleek lines of modern casement windows.The replacement window industry has done a lot to persuade house owners that their traditional windows are rotten, draughty and beyond economic repair. The truth is that a lot of older windows made of timber are in good shape and with minor repairs could easily be repaired for many years to come.5. MaintenanceTraditional 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 deteriorating excessively. It could also cause paint and putty to degrade. The removal of the sashes may also cause structural movement within the frame which causes the sash to be misaligned and in a position that it is not able to close properly. The sash may also become stuck in the open position, allowing the water and drafts to enter the building.Moisture penetration is the most common cause of damage to timber windows. This can be avoided with regular maintenance by thorough painting and eliminating the source of dampness. The paint can be removed to expose the soft, rotting wood. The rotten timber sections should be carefully removed, and the affected area should be scarfed together or glued together by using replacements of the same kind as the timber that remains. This repair method increases the amount of fabric used in the first place and is one of least invasive ways to treat wood-to-timber rot.A resin-based wood condenser is an alternative to traditional process of sanding or staining. It is brushed on the surface of the timber to help stabilize it and protect it from further damage. It is particularly beneficial for the treatment of sash cords and pulleys where it can help to stop breakage.It is essential that any historic ironmongery like sash stays and latches be kept and rehabilitated instead of being replaced. These items can be very difficult to replace without compromising the the original design. It is also recommended that modern fittings made of aluminium, such as sashlifts and chainstays, should be avoided since they could cause corrosion and deterioration of timber frames and sashes.