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How to Restore Timber Sash Windows in Cambridge

Many homes in Cambridge have sash windows with traditional designs and homeowners are proud of how they appear. Sash windows can become stuck and are difficult to open or close. This is usually due moisture that can cause the wood to swell.

Box sash windows were traditionally operated using chains or cotton cords as well as weights made of lead. Modern sash windows come with hidden springs to address this issue.

1. Aesthetics

Timber sash windows, in contrast to PVC-u windows that are made in imperial sizes that are modular, can be restored to their original dimensions. This lets the restoration be in line with modern energy requirements while complying with conservation regulations for the area. It also comes with an option that is superior to upvc door handle repairs near me options.

Sliding windows with sash were initially intended for large structures or public buildings. However the production became less expensive and craftsmen could produce larger frames with more glass. At the end of the 18th century, sash windows were the most popular wooden design in British homes. As they were easy to open sash windows allowed light into rooms without curtains.

The first windows were made of plain glass, but in the 17th century sash windows started to become more ornamental. They were initially made of colored glazing bars or mullions. They were expensive at the beginning but as glass production became less expensive and more efficient, they became a common feature in many period houses.

In the 19th century, it was possible to manufacture large, sturdy glass that did not require support bars. This allowed the frame to be made larger, which in turn gave the viewer a better view. This was a significant advancement.

Another significant improvement was the introduction of the double-hung sliding windows at the end of I920s and at the beginning of the I930s. This allowed both the upper and lower sash to be opened simultaneously, and allowed for better ventilation to buildings.

Oak was used in older examples and for more prestigious buildings. It is important to maintain the parting bead which divides the sashes. This will help prevent draughts and rattles. It is also essential that the idler and sash pulley wheels are kept in good working order as they help to operate the window.

2. Energy efficiency

As larger and clearer sheets of glass were made available, sash windows began to replace hinged casements. They were made of plate glass, set within rebated timber frames and pinned in place using glazing sprigs, with putty on both sides to ensure they were watertight. This kind of glazing gradually superseded 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 as well as sash stoppers, shutter hinges and handles as well as various fasteners used to secure the sashes. These were often decorated with motifs, inscriptions, and engraved patterns that identified the maker.

Sash windows can be extremely energy efficient if they are maintained regularly. Without this maintenance they could become noisy. Draughts can also be caused by the breakdown of putty and paint. You can fix this problem with wood-to-timber products.

The industry of replacement windows relies heavily on the perception that older windows are beyond repair and cannot be maintained economically. However they can be maintained with a bit of attention. These repairs can be expensive and cause many disruptions in the home. To avoid this homeowners often prefer to replace their windows with PVC-u windows from one the largest 'one stop shop' installation companies. These can remove and replace all windows in an entire house in a single day, eliminating the need to co-ordinate different tradesmen, making the whole process much more efficient. They can also be supplied with 'energy-saving' double-glazing to achieve higher energy efficiency ratings than are possible with traditional windows made of sash. These double-glazed windows aren't able to replicate the proportions and sections of sashes from old timber.

3. Security

Traditional windows can be made more secure without compromising their appearance. Ironmongery like mortice bolts, sash chain and sash lock could be installed. These can be installed so that the window remains capable of being opened to allow ventilation or for cleaning. These products are often unobtrusive as they are designed to complement sash windows. They can be used with traditional sash window hinges leeds catches. These should be replaced by more robust models like those with double screws, or sprung levers to decrease the possibility of being hit with hammers.

Sash-window frames are traditionally made of oak or slow-grown deal. If the glazing bars are intact, they should be retained. If it is feasible, the cills made of timber should be replaced by timber that is compatible with. PVC-u companies often provide a one-stop shop installation service that can remove and replacing windows across a house in a day without the need to engage other tradespeople or co-ordinate various visits from a number of different suppliers.

4. Ventilation

When sash windows first introduced in the 17th century they allowed a large amount of light to flood into buildings. In the 18th century, they had been adapted so that even more light could be let into the rooms. Larger glass panes were also made. The result was a lighter look and windows with more elegance.

The introduction of sash windows also required an entirely new range of ironmongery. Early pulleys were made out of wood. Later Victorian ones were made of brass or a mixture of wood and lead. There were also a variety of types of shutter hinges and knobs. These ironmongery pieces should be cleaned and preserved to appreciate their beautiful design.

To keep them in good shape, timber windows must be maintained. Lack of attention to them regularly could lead to:

Sashes that don't slide smoothly.

Holes in the frame which allow water to enter and cause damage and decay.

break down of putty allowing water penetration that could lead to decay of the frame and cill.

Steel casement windows were popular in the I920s & I930s because they were strong and slim, cheap and matched the trend of healthy living. However, research has revealed that traditional softwood sash windows are as efficient in thermal efficiency as double-glazed windows made of PVC-u, and are more attractive than the sleek lines of modern casement windows.

The window replacement industry has done a great job convincing homeowners that their old windows were decayed, drafty and beyond economical repair. Many old timber windows can be fixed and used for a long time with minor repairs.

5. Maintenance

A traditional sash window requires regular maintenance and inspection. Failure to do this can lead to broken sash cords, excessive wear on the glazing bars and degradation of the paint and putty. The removal of sashes can also cause structural movement in the frame, which can cause the sash not to close properly. It is also possible for the sash be stuck or slammed into an open position and let water and draughts into the structure.

Damage to timber windows is often caused by moisture penetration. This can be prevented with thorough painting, periodic repairs to upvc doors and the elimination of the cause of dampness. Wet rot can be identified due to the wavy appearance of the paint, which can be stripped to reveal rotting, soft timber. The sections of timber that are rotten should be carefully removed and the affected part should be scarfed or glued together using replacements of the same nature as the rest of the timber. This method of repair maximizes the amount original fabric and is among the most minimally invasive methods of treating wood-to-timber rot.

A wood condenser made of resin is an alternative to the traditional process of sanding or staining. It is brushed on the surface of the timber to stabilize it and shield it from further damage. It is particularly beneficial for the treatment of pulleys and sash cords which help prevent the breakage.

It is essential that any old ironmongery like sash stays and latches are retained and rehabilitated instead of being replaced. It is difficult to replace these items without altering their original design. It is also advised that modern aluminium fittings like sashlifts, as well as chainstays, should be avoided since they can cause deterioration and corrosion of timber frames and sashes.