How to Restore Timber Sash Windows in Cambridge

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

Box sash windows were historically operated using chains or cotton cords, as well as weights made of lead. Modern sash windows feature hidden springs to solve this problem.

1. Aesthetics

In contrast to PVC-u windows, which are made according to imperial sizes that are modular Timber sash windows can be restored to their original size. This allows the restoration to meet modern day energy requirements while complying with conservation regulations for the area. It also provides windows with a superior appearance than the upvc door repair cost alternatives.

Sliding windows with sash were initially only found in large buildings or public buildings, though this changed when production became less expensive and craftsmen could produce larger frames with more glass. By the late 18th century sash windows were the dominant wooden windows and doors cambridge design in most British homes. Since they were easy to open sash windows allowed light into rooms without curtains.

Early windows were simple glass, but in the 17th century, sash windows began to become more decorative, with coloured glazing bars and moulded mullions. They were expensive at the time, but as glass production improved and cost-effective, they became a feature of numerous period houses.

In the 19th century, it was possible to manufacture large, sturdy glass that didn't require supporting bars. This allowed the frame's size to be enlarged more, which in turn allowed for a wider view out of the window. This was an important innovation.

The introduction of the double-hung sliding sash was another important improvement that was made at the end of the I920s and 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 popular kind of sash is made of slow-growing deal (pine) but oak was also used in more prestigious buildings and in some earlier examples. A split bead divides the two sashes, and it is vital that it is well maintained to prevent rattles and draughts. It is also crucial that the idler and sash pulley wheels are kept in good condition as these assist in operating the window.

2. Energy efficiency

Sash windows replaced hinged cases as clearer and larger sheets became available. Plate glass was placed in rebated timber frames, pinned with glazing sprigs and putty was sprayed on the frame's two sides to ensure watertightness. This type of glazing gradually replaced the leaded light bulbs.

Sashes were introduced, which led to increased demand for ironmongery. The basic fittings included brass pulleys (and later cast-iron) weights and stoppers for sashes shutter hinges and handles as well as various fasteners used to fix the sashes. These were usually decorated with patterns, inscriptions and engravings to identify the maker.

Sash windows can be very energy efficient if they are maintained regularly. However, without this maintenance they can become drafty and let in cold air. Paint and putty may also cause draughts. This issue can be fixed by using wood-to-timber solutions.

The market for replacement windows rests on the assumption that traditional windows are rotten and beyond repair, whereas they can be easily maintained with a little attention. These repairs can be expensive and cause many disruptions in the home. Many homeowners choose to replace their windows using PVC-u from a large 'one-stop shop' installation company. They can replace all windows in a home in one day, saving time and eliminating the need for different tradesmen to coordinate. They can also be fitted with 'energy saving' double glazed door seal repairs-glazing to get greater energy efficiency than traditional windows with sash. However double-glazed windows cannot replicate the section and proportions of traditional timber sashes.

3. Security

Traditional windows can be secured without compromising their style. A variety of ironmongery types can be fitted with sash chains, mortice bolts and sash locks. They can be fitted in a way that the window doctor is open to allow ventilation or for cleaning. They are generally not noticeable, since they are designed to match the sash window. They can be used in conjunction with traditional sash window catches. They are best replaced with more robust models, such as those that incorporate double screws, or sprung levers in order to reduce the chance of being hammered.

Sash-soundproof Window repair frames are typically made from oak or slow-grown deal. If the glazing bars are still in good condition and are not damaged, they should be left. Where possible, the timber cills should be replaced by wood that is in line with. PVC-U companies usually provide a one-stop shop installation service, removing and replacing windows across a house in a day without the need to involve other tradespeople, or coordinate visits from a number of different suppliers.

4. Ventilation

Sash windows were introduced in the 17th Century and allowed for a large amount of light into buildings. In the 18th century, they were modified so that more light could be let into the rooms. Larger glazing panes were also created. 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 were constructed of wood. Later Victorian ones were made of brass or a mixture of wood and leaded. There were also various types of shutter hinges and knobs. These ironmongery pieces should be kept clean and preserved in order to appreciate their fine design.

Timber windows require regular maintenance to ensure they remain in good condition. Inattention to maintenance could lead to:

Sashes that do not move easily.

holes in the frame that admit water, which can cause damage and decay.

break down of putty allowing water to penetrate, 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. However, research has revealed that traditional softwood sash windows can be just as efficient in thermal efficiency as PVC-u double glazing cambridge-glazed windows, and can be more attractive than the sleek lines of modern casement windows.

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

5. Maintenance

The traditional sash windows need regular maintenance and inspection. Inability to maintain it properly can result in the sash cords breaking, a lot of wear on the glazing bars and degradation of the paint and putty. The removal of sashes can also result in structural shifts within the frame, which causes the sash to move out of alignment and in a position that it is not able to close properly. The sash may also become stuck in an open position, allowing the water and drafts to enter the building.

Damage to timber windows is often caused by moisture entry. This can be prevented by regular repairs, thorough painting and removing the cause of dampness. Wet rot is easily identified by the wavy appearance of the existing paint which can be stripped away to reveal rotting, soft timber. Any rotten timber sections should be cut off and the affected area should be carefully scarfed or pieced in using replacements made of the same type of timber as the ones remaining. This method of repair increases the amount of fabric left, and is one of the least invasive ways of treating decay of timber to timber.

A wood condenser made of resin is an alternative to traditional staining or sanding. The product is brushed on the surface of the wood to protect it and stabilise it. It is particularly useful for treating sash and pulley cords, which can help prevent breakage.

It is important to restore and not replace any historic ironmongery, such as stay latches and sash latches. These items can be very difficult to replace without harming the quality of the original design. It is also advised that modern fittings made of aluminium, such as sashlifts and chainstays, be avoided as they can cause corrosion and deterioration of timber frames and sashes.