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How to Restore Timber Sash Windows in Cambridge

Many homes in Cambridge have sash windows that are traditional and the homeowners are proud of their appearance. However, sash windows may get stuck and be difficult to open or close. This is usually due moisture which can cause the wood to swell.

Traditionally, window boxes utilized chains or cotton cord and lead weights to operate. Modern sash windows have hidden springs to address this problem.

1. Aesthetics

Timber sash windows, unlike PVC-u windows which are manufactured in imperial sizes and are modular, are able to be restored to their original dimensions. This allows for the restoration of timber sash windows in order to meet current energy requirements and conform to conservation regulations for areas. It also offers windows that have a more attractive appearance than uPVC alternatives.

Sliding sash window frames were initially only used for large buildings or public buildings. However, this changed when production became less expensive and craftsmen could produce larger frames with greater glass. At the end of the 18th century, sash windows were the most popular wooden design in British homes. Sash windows were simple to operate and let light into rooms without the use of curtains.

Early windows were plain glass but by the 17th century sash windows began to become more decorative, with coloured glazing bars and moulded mullions. These windows were quite expensive at the time but as glass production became more efficient and less expensive, they became a part of numerous period houses.

In the 19th century, it was possible to make large, sturdy glass that did not require supporting bars. This allowed the frame's size to increase further, which meant more of a view out of the window. This was an important improvement.

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 upper and lower sash to be opened simultaneously, and gave improved ventilation to a building.

Oak was used for older examples and more prestigious buildings. A split bead divides the two sashes. It is important that this is maintained in order to avoid rattles and draughts. The idler wheels, sash pulleys and sash rollers are also vital for the proper operation of the window.

2. Energy efficiency

Sash windows were replaced by hinged casements as larger and clearer sheets became available. Plate glass was placed in frames of timber that were rebated, then secured with glazing sprigs and putty was applied to the frame's sides to ensure watertightness. This form of glass gradually replaced the leaded light bulbs.

Sashes were introduced, which led to an increase in demand for ironmongery. The most common fittings included brass pulleys (and later cast-iron) weights, sash stoppers shutter hinges, handles and shutter hinges, and a variety of fasteners used to fix the sashes. These were often decorated with motifs, inscriptions and engravings that identified 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 deterioration of paint and putty. It is possible to fix this issue by using wood-to-timber products.

The market for replacement windows rests on the assumption that traditional windows are rotten and beyond economical repair, but they are able to be maintained with just a little care. Repairs can be costly and cause lots of disruption to the home. To prevent this homeowners often choose to replace their windows with PVC-u windows from one of the large "one stop shop" installation companies. These can remove and replace all the windows in an entire house within a single day, avoiding the need to coordinate different tradesmen and making the entire process much faster. They can also be fitted with 'energy-saving' double-glazing to achieve higher energy efficiency ratings than traditional windows made of sash. However double-glazed windows cannot replicate the section and proportions of traditional timber sashes.

3. Security

It is possible to secure traditional windows without compromising their style. Ironmongery such as mortice bolts, sash chain and sash lock could be put in place. These can be installed in a way so that the window can be open for ventilation repair cambridgeshire and cleaning. These are typically minimal in appearance, as they are designed to complement the sash window. They can be used alongside traditional sash window catches that must be replaced by more robust versions (such ones with double screws) or sprung levers to reduce the possibility of them being opened by hammering.

Sash-window frames are typically made from oak or slow-grown deal. Where glazing bars have survived they should be kept, and, if possible, the timber of the cill should be replaced with matching wood. Many PVC-U firms provide a one-stop shop installation service. They can remove and replace windows on an entire home in a single day, without involving other tradespeople.

4. Ventilation

When sash windows were first introduced in the 17th century they allowed a substantial amount of light to flood into buildings. At the end of the 18th century, they were modified to let more light into rooms, and bigger glazing panes started to be manufactured. The result was a lighter look and windows with more elegance.

Sash windows were introduced, which required a new type of ironmongery. Early pulleys were of wood, while later Victorian ones could be made of brass or a combination of lead and wood, and there were various types of shutter hinges and knobs. Ironmongery elements must be maintained and cleaned so that the quality of their design can be appreciated.

To ensure they remain in good condition, wooden windows must be maintained. Inattention to maintenance could lead to:

Sashes that no longer slide smoothly.

Holes in the frame that allow water to get in and cause damage and decay.

break down of the putty and allow water penetration that can lead to decay in the frame and cill.

Steel casement windows were popular in the I920s and I930s due to their strength and slim, cheap and matched the trend of healthy living. However, research has shown that traditional softwood sash windows are as efficient thermally as PVC-u double-glazed windows, and can be more attractive than the sleek lines of contemporary casement windows.

The replacement window industry has done a great job convincing homeowners that their old windows were rotten and drafty. They were also beyond the budget for repair. Many old timber windows can be repaired and used for many more years with minor repairs.

5. Maintenance

A traditional sash window requires regular maintenance and inspection. If you fail to maintain your storefront Window glass repair's sash, it could result in the sash cords breaking and the glazing bars deteriorating excessively. It can also cause paint and putty degrade. The removal of sashes could also result in structural movements within the frame, causing the sash to not close correctly. It is also possible for the sash to be stuck or fixed in the open position and let water and draughts enter the property.

Moisture penetration is a frequent cause of damage to timber windows. This can be avoided by regular maintenance as well as thorough painting, and then removing the cause of dampness. The paint can be removed to expose the soft, decaying wood. The sections of timber that are rotten must be removed with care, and the affected area should be scarfed or glued together with replacements of the exact type as the remaining timber. This method of repair increases the amount of fabric that is left and is among the least invasive ways of treating timber-to-timber decay.

A resin-based wood condenser is an alternative to the traditional process of sanding or staining. 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 stop breakage.

It is essential to preserve and not replace any historic ironmongery, such as the sash latches and stays. These items are difficult to replace without damaging the quality of the original design. It is also advised that fittings made of aluminum like sashlifts and chainstays, should be avoided since they can cause corrosion and deterioration of timber frames and sashes.