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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 get stuck and are difficult to open or shut. This is usually due to moisture which can cause the timber to swell. Traditionally, windows made of box sash used chains, cotton cords or weights made of lead to operate. Modern windows with sash springs are concealed to solve this problem. 1. Aesthetics Contrary to PVC-u windows which are made according to imperial sizes that are modular the timber sash windows are able to be restored to their original dimensions. This permits the re-installation of timber sash windows in order to meet current energy requirements and comply with conservation area regulations. window installation cambridge offers a window that is far superior to uPVC options. Sliding windows with sash were initially only used in large buildings or public buildings, but this changed as production became less expensive and craftsmen could create larger frames using more glass. At the close of the 18th century, sash windows were the most sought-after wooden style in British homes. Sash windows were easy to operate and let light in rooms without the use of curtains. Early windows were plain glass, but by the 17th century, sash windows started to become more decorative, with coloured glazing bars and moulded mullions. These windows were quite expensive at the time, but as glass production improved and cheaper they were a common feature in numerous period houses. In the 19th century, it was possible to produce large, strong glasses that didn't require support bars. This allowed for the frame to be made bigger and, in turn, gave the viewer a better view. This was an important improvement. The introduction of the double-hung sliding sash was a important improvement that occurred at the end of the I920s and at the beginning of the I930s. This allowed both the upper and lower sash to be opened simultaneously, and also improved the ventilation of buildings. The most common kind of sash is made from slow grown deal (pine) however oak was used in the more prestigious buildings and in some earlier examples. A split bead divides the two sashes and it is essential that it is maintained in order to avoid rattles and draughts. The sash pulleys, idler wheels and sash rollers also are vital to the functioning of the window. 2. Energy efficiency Sash windows were replaced by hinged casements as larger and clearer sheets were made available. They were coated with plate glass that was placed within timber frames with rebates and secured with glazing sprigs, with putty on both sides to ensure they were watertight. This type of glazing gradually superseded leaded lights. Sashes were introduced, which resulted in an increase in demand for ironmongery. The most basic fittings were brass pulleys (and later cast-iron) weights and stoppers for sashes, shutter hinges and handles as well as a variety of fasteners to secure the sashes. These were usually decorated with designs, inscriptions, and patterns engraved to identify the maker. Sash windows are energy efficient if they are maintained regularly. However, if they are not maintained, they can become draughty and let in cold air. Draughts can also be caused by the breakdown 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 heavily on the perception that old windows are damaged beyond repair and cannot be maintained economically. However they can be maintained with a bit of attention. However, repairs to these windows can be costly and cause significant disruption to your home. To prevent this, many homeowners choose to replace their windows with PVC-u windows from one of the largest 'one stop shop' installation companies. They can replace all windows in a house in one 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 windows with sash. These double-glazed windows aren't capable of resembling the proportions or section of the sashes made of timber from the past. 3. Security Traditional windows can be secured without compromising their appearance. Ironmongery like sash chain, mortice bolts and sash locks can be put in place. They can be positioned in a manner that the window can be opened for ventilation and cleaning. They are generally unobtrusive, as they are designed to complement the sash window. They can be used in conjunction with traditional sash window catch. They should be replaced with more robust models, such as ones that have double screws or sprung levers, to minimize the possibility of being struck by hammers. Sash-window frames are typically constructed from oak or slow-grown deal. If the glazing bars are intact and in good condition, they should be kept. Where possible, the timber cills should be replaced with wood that is in line with. PVC-u companies typically offer a one stop shop installation service that can remove and replacing windows across a home in a single day without the need to engage other tradespeople or co-ordinate various visits from different suppliers. 4. Ventilation When sash windows first introduced in the 17th century they allowed a significant amount of light to flood into the buildings. At the end of the 18th century they were modified to let even more light into rooms and larger glass panes began to be made. The result was a lighter appearance, and windows that had a higher quality of design than before. Sash windows were introduced that required a brand new range ironmongery. The first pulleys were made of wood, later Victorian ones were made from brass or a mixture of wood and lead, and there were various types of shutter hinges and knobs. The ironmongery pieces need to be cleaned and preserved to appreciate their fine design. To keep them in good condition, timber windows require regular maintenance. Lack of regular attention may result in: Sashes that no longer slide smoothly. holes in the frame that admit water causing damage and decay. break down of putty allowing water to penetrate, which could lead to decay of the frame and cill. Steel casement windows were popular in the I920s and I930s because they were strong and slim, cost-effective and matched the trend towards healthy living. Research has proven that softwood sash window are just as effective as PVC-u windows, and may even be more attractive. The window replacement industry has made a significant effort to convince homeowners that their windows are rotten, draughty and beyond repair. The reality is that many older windows made of wood are in good shape and with minor repairs can easily be maintained for years to come. 5. Maintenance A traditional sash window needs regular maintenance and inspection. If you do not maintain your sash window, it could result in the sash cords breaking and the glazing bars deteriorating excessively. It can also cause the paint and putty to deteriorate. The removal of sashes may also result in structural movements within the frame, causing the sash not to close properly. The sash could also get stuck in its open position, which allows water and draughts to enter the property. Moisture penetration is the most common cause of damage to windows made of timber. This can be prevented by thorough painting, periodic repairs and the elimination of the source of dampness. The paint can be removed to expose the soft, decaying wood. The sections that are rotting must be removed with care and the affected area should be scarfed or glued together using replacements of the same nature as the rest of the timber. This method of repair increases the amount of fabric that was originally used and is among the most minimally invasive methods of treating the rot that occurs between timber and timber. The use of a resin-based wood consolidant is a different option to traditional sanding and staining. This is brushed on the surface of the wood to protect it and strengthen it. It is particularly beneficial for the treatment of sash cords and pulleys where it can help to prevent breakage. It is crucial to restore and not replace any old ironmongery, such as sash latches and stays. They can be extremely difficult to replace without damaging the the original design. It is also recommended that modern aluminium fittings like sashlifts and chainstays, should be avoided since they can cause corrosion and deterioration of timber frames and sashes.