10 Reasons Why People Hate Sash Windows Cambridge How to Restore Timber Sash Windows in Cambridge

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

Box sash windows were historically operated with chains or cotton cords, as well as lead weights. Modern window springs for sash windows are concealed to avoid 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 lets the restoration meet the current energy standards while complying with conservation area regulations. It also comes with windows that are superior to uPVC options.

Sliding frames for windows made of sash were originally intended for large structures or public buildings. However the production became more affordable and artisans could produce larger frames with larger glass. In the 18th century, windows made of sash were the predominant wooden style in a majority of British homes. As they were easy to open sash windows allowed light into rooms without the need for 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. They were expensive at the beginning but as glass production became less expensive and more efficient, they were a common feature in many historic homes.

In the 19th century it was possible to make large, sturdy glass that did not require supporting bars. This allowed for the frame to be made bigger and, in turn, gave the viewer a better view. This was a significant advancement.

Another significant improvement was the introduction of the double-hung sliding window at the end of I920s and the beginning of I930s. This allowed both the upper and lower sash to be opened at the same time and allowed for better ventilation to a building.

Oak was used for older examples and more prestigious buildings. A parting bead separates the two sashes and it is important that this is maintained to prevent rattles and drafts. It is also crucial that the idler and sash pulley wheels are in good working order as they help to operate the window.

2. Energy efficiency

Sash windows replaced hinged casements as clearer and larger sheets were made available. Plate glass was set into frames of timber that were rebated, then secured with glazing sprigs and putty was then sprayed onto the frame's two sides for watertightness. This kind of glazing gradually replaced the leaded light bulbs.

Sashes were introduced, which resulted in a greater demand for ironmongery. The basic fittings included brass pulleys (and later cast-iron) weights as well as sash stoppers shutter hinges and handles and a variety of fasteners used to fix the sashes. These were often decorated with motifs, inscriptions or engraved patterns that identified the maker.

Sash windows can be extremely energy efficient if they are maintained regularly. If they are not maintained they could become noisy. 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 replacement window industry relies heavily on the notion that old windows are beyond repair and are not able to be maintained economically. However windows can be easily maintained with a little attention. Repairs can be expensive and cause a lot of disruption in the home. Many homeowners opt to replace their windows using PVC-u from a 'one-stop shop' installation company. They can replace all windows in a house in one day, saving time and eliminating the need for different tradesmen to coordinate. They are also available with energy-saving double-glazing, which can achieve greater energy efficiency than are possible with traditional windows with sash. However double-glazed windows cannot reproduce the proportions and section of the sashes made of timber from the past.

3. Security

Traditional windows can be made more secure without compromising their appearance. Ironmongery such as mortice bolts, sash chain and sash locks can be used. They can be fitted in a way so that the window can still be open for ventilation and cleaning. They are usually not noticeable since they are designed to complement sash windows. They can be used alongside traditional sash window catches, which are required to be replaced with more robust models (such ones with double screws) or sprung levers to reduce the chance of them being opened by hammering.

Sash-window frames are usually made of oak or slow-grown deal. If glazing bars have survived, they should be preserved, and, if it is possible, the timber of the cill should be replaced with matching wood. Many PVC-U companies offer a one-stop installation service. They can remove and replace windows throughout a home in one day, without the need to involve other tradespeople.

4. Ventilation

When sash windows were first introduced in the 17th century, they allowed a substantial amount of light into the buildings. In the 18th century, they were modified to allow more light could be let into rooms. Larger glass panes were also produced. The result was a lighter appearance and windows that were more elegant.

The introduction of sash windows also required the creation of a new line of ironmongery. Early pulleys could be made out of wood. Later Victorian ones were made of brass or a mixture of leaded and wood. There were also various types of knobs and shutter hinges. These ironmongery pieces must be cleaned and preserved to appreciate their fine design.

Timber windows require regular maintenance to keep them in good shape. Inattention to maintenance routinely could cause:

Sashes that do not slide easily.

holes in the frame that allow water that can cause decay and damage.

Water can get into the putty and cause decay to the frame or the cill.

Steel casement windows became popular in the I920s & I930s because they were sturdy and slim, and also because they were cheap and complemented the trend for healthy living. However, research has shown that traditional softwood sash windows are as thermally efficient as double-glazed windows made of PVC-u, and may be more appealing than the sleek lines of contemporary casement windows.

The replacement window industry has made a significant effort to persuade house owners that their windows are dirty, noisy and beyond repair. Many older timber windows can be repaired 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 result in broken sash cords, excessive wear on the glazing bars and the deterioration of putty and paint. The removal of sashes can also cause structural movement in the frame, causing the sash not to close correctly. The sash could also get stuck in an open position, which allows the water and drafts to enter the building.

Moisture penetration is a 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 reveal the soft, rotting wood. The rotten timber sections must be removed with care, and the affected area should be scarfed together or glued together by using replacements of the same nature as the rest of the timber. This method of repair increases the amount of original fabric that is left and is among the least invasive methods for treating timber-to-timber decay.

repairmywindowsanddoors of a resin-based wood consolidant is another alternative to the traditional method of sanding and staining. This is brushed onto the surface of the timber to help stabilize it and shield it from further damage. It is particularly useful in the treatment of sash cords and pulleys which help stop breakage.

It is important to restore and not replace any old ironmongery, such as the sash latches and stays. It is difficult to replace these items without compromising their original design. It is also advised that modern fittings made of aluminium like sashlifts, as well as chainstays, are avoided since they could cause corrosion and deterioration of timber frames and sashes.