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How to Restore Timber Sash Windows in Cambridge Many homes in Cambridge have sash windows that are traditional and homeowners are proud of the way they appear. Sash windows can become stuck and become difficult to open or shut. This is usually due to moisture, which can cause the timber to expand. Box sash windows were traditionally operated by chains or cotton cords, as well as weights made of lead. Modern sash windows feature hidden springs to overcome this issue. 1. Aesthetics Unlike PVC-u windows that are manufactured according to imperial sizes that are modular Timber sash windows can be restored to their original sizes. This allows the restoration to be in line with modern energy requirements while complying with conservation area regulations. It also gives windows that have a superior appearance than the uPVC alternatives. Sliding windows with sash were initially only used for large buildings or public buildings. However this changed as production became cheaper and artisans could make larger frames using larger glass. In the 18th century, sash windows were the dominant design of wood in the majority of British properties. Sash windows were easy to operate and allowed light to enter rooms without the need for curtains. The first windows were made of clear glass however, in the 17th century sash windows started to be more decorative. They started with coloured glazing bars, also known as mullions. They were costly at first, but as glass production became less expensive and more efficient, they were commonplace in many period houses. By the 19th century it was possible to create large, strong glass that did not need support bars. This allowed the frame to be enlarged which, in turn, provided an improved view. window maintenance Repair My Windows And Doors was an important innovation. The introduction of the double-hung sliding sash was a important improvement that occurred towards the end of the I920s and beginning of the I930s. The double-hung sliding sash was a significant improvement that came about at the end of the I920s and beginning of the I930s. The most commonly used type of sash is made from slow-growing deal (pine) however oak was utilized in more prestigious buildings and in some earlier examples. It is important to maintain the parting bead which separates the sashes. This will stop rattles and draughts. The sash pulleys, idler wheels and sash rollers are also essential to the operation of the window. 2. Energy efficiency As clearer and larger glass sheets became available, sash window began replacing hinged casements. They were glazed with plate glass set within rebated timber frames and secured with glazing sprigs, and then putty on both sides to make them watertight. This kind of glass gradually replaced leaded lights. The introduction of sashes resulted in the need for a wider range of ironmongery, with the most basic fittings being brass pulleys, lead (and later cast iron) weights, sash stoppers shutter hinges and knobs, and a range of fasteners that secured the sashes in place. These were usually decorated with designs, inscriptions, and engraved patterns to identify the maker. Sash windows can be extremely energy efficient when they are maintained regularly. But, if you don't maintain them, they can become drafty and let in cold air. Draughts can also result from the degeneration of paint and putty. It is possible to fix this issue by using wood-to-timber products. The industry of replacement windows relies heavily on the belief that old windows are beyond repair and cannot be maintained economically. However windows can be easily maintained with a little attention. Repairs can be costly and cause many disruptions in the home. To prevent this homeowners often choose to replace their windows with PVC-u windows made by one of the large “one-stop shop” installation companies. They can take down and replace all the windows in a house in a single day, eliminating the need to coordinate multiple tradesmen and making the whole process much more efficient. These windows can be fitted with energy-saving' double glazing to achieve higher energy ratings than the traditional windows made of sash. However, these double-glazed units cannot replicate the section and proportions of the sashes made of timber from the past. 3. Security Traditional windows can be made secure without compromising their aesthetics. Ironmongery, such as sash chain, mortice bolts, and sash lock can be installed. They can be fitted in a way so that the window can still be opened for ventilation and cleaning. These products are usually minimal in appearance, as they are designed to fit the sash window. They can be used in conjunction with traditional sash window catches. They should be replaced with more robust models like ones that have double screws or sprung levers to decrease the possibility of being hammered. Sash-window frames were traditionally made from slow-growing deal or, in more elegant homes, from oak. If the glazing bars remain in good condition and in good condition, they should be kept. If it is possible, the cills of the timber should be replaced by timber that is compatible with. Many PVC-U firms provide a one-stop shop installation service. They can take down and replace windows on a complete home in a single day, without involving other tradespeople. 4. Ventilation Sash windows were first introduced in the 17th century and allowed for a huge amount of light to be absorbed into buildings. At the end of 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 appearance and windows that were more elegant. Sash windows were introduced and required a new type of ironmongery. The first pulleys were made of wood, whereas later Victorian ones were made of brass or a mixture of wood and lead, and there were various types of shutter hinges and knobs. These ironmongery pieces must be cleaned and preserved to appreciate their beautiful design. Timber windows require careful maintenance to ensure they remain in good shape. Lack of regular attention may cause: sashes that no longer slide easily. holes in the frame that allow water that can cause decay and damage. break down of putty allowing water penetration, which could lead to decay of the frame and cill. Steel casement windows gained popularity in the I920s & I930s because they were sturdy and slim, cost-effective and matched the trend of healthy living. Research has shown that softwood sash windows are just as efficient as PVC-u windows and can even be more attractive. The replacement window industry has done a great job convincing homeowners that their old windows were rotten, drafty and beyond economical repair. However, many old windows made of timber are in good condition and with minor repairs could easily be maintained for years to come. 5. Maintenance A traditional sash window requires regular maintenance and inspection. If you fail to maintain your window's sash, it could lead to the sash cords breaking, and the glazing bars wearing out excessively. It could also cause paint and putty to deteriorate. The removal of sashes could also result in structural movements within the frame, which can cause the sash to not close correctly. The sash could also get stuck in the open position, which allows the water and drafts to enter the property. Damage to timber windows is often caused by water penetration. This can be prevented with thorough painting, periodic repairs, and removing the cause of dampness. The paint can be removed to reveal the soft, rotting wood. Any rotten timber sections must be removed and the affected area carefully wrapped or pieced back using replacements made from the same type of timber as the ones remaining. This method of repair maximizes the amount of fabric that was originally used and is one of least invasive ways to treat the rot that occurs between timber and timber. A wood condenser that is based on resin is a viable alternative to traditional sanding or staining. It is brushed onto the surface of the wood to protect it and strengthen it. It is especially useful to treat sash and pulley cords, which can stop breakage. It is important that any old ironmongery such as sash stays and latches are retained and restored instead of replacing them. It is difficult to replace these items without altering their original design. It is also advised that fittings made of aluminum like sashlifts and chainstays, be avoided as they can cause corrosion and deterioration of timber frames and sashes.