What You Should Be Focusing On Improving Sash Windows Cambridge
How to Restore Timber Sash Windows in Cambridge
Many homes in Cambridge have sash windows that are traditional and homeowners are proud of how they look. Sash windows can get stuck and be difficult to open or shut. This is often due moisture, which can cause the timber to swell.
Traditionally, window boxes utilised chains, cotton cords or weights made of lead to operate. Modern window springs for sash windows are concealed to avoid this issue.
1. Aesthetics
Timber sash windows, in contrast to PVC-u windows which are manufactured in imperial sizes, which are modular, can be restored to their original size. This lets the restoration be in line with modern energy requirements while still complying with conservation areas regulations. It also provides windows that are superior to uPVC alternatives.
Sliding windows with sash were initially only used for large buildings or public buildings. However this changed as production became less expensive and craftsmen could produce larger frames with more glass. In the late 18th century Sash windows were the most popular wooden design in most British homes. Because they were simple to open sash windows allowed light into rooms without the need for curtains.
The first windows were made of plain glass, but by the 17th Century the sash windows began to be more decorative. They were initially made of colored glazing bars or mullions. They were expensive initially, but as glass production became cheaper and more efficient, they became a common feature in many homes of the period.
In the 19th century, it was possible to manufacture large, sturdy glass that did not require supporting bars. This allowed for the frame to be made bigger and, in turn, gave 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 gave improved ventilation to buildings.
The most common type of sash is constructed of slow-growing deal (pine) however oak was used in the more luxurious buildings and in some earlier examples. wood casement windows cambridge RepairMyWindowsAndDoors is essential to keep the parting bead which separates the sashes. This will stop draughts and rattles. It is also crucial that sash pulleys and idler wheels are in good shape as they aid in operating the window.
2. Energy efficiency
As clearer and larger sheets of glass were made available, sash windows began replacing hinged casements. Plate glass was set into frames of timber that were rebated, then secured with glazing sprigs and putty was sprayed on the frame's two sides to ensure watertightness. This kind of glazing gradually replaced leaded lights.
Sashes were introduced, which resulted in an increase in demand for ironmongery. The most common fittings included brass pulleys (and later cast-iron) weights and stoppers for sashes, shutter hinges and handles, and a variety of fasteners to fix the sashes. They were often decorated with patterns, inscriptions and patterns engraved to identify the maker.
With regular maintenance, sash windows are very energy efficient. Without this maintenance, they can become drafty. Draughts can also result from the degeneration of putty and paint. You can fix this problem with wood-to-timber products.
The industry of replacement windows is based on the perception that older windows are old and beyond economical repair, while they can be easily maintained with a bit of care. However, these repairs can be expensive and involve substantial disruption to the home. To avoid this homeowners often choose to replace their windows with PVC-u windows from one the largest "one stop shop" installation companies. They can replace all windows in a house in one day, thereby saving time and eliminating the need for various tradesmen to coordinate. These windows can be fitted with 'energy-saving double-glazing to attain higher energy ratings than traditional windows made of sash. However these double-glazed units are unable to replicate the section and proportions of historic timber sashes.
3. Security
Traditional windows can be secured without compromising their style. A variety of ironmongery types can be fitted, including sash chains, mortice bolts, and sash locks. These can be installed so that the window is still capable of being opened to allow ventilation or cleaning. These windows are typically discrete since they are made to be used in conjunction with sash windows. They can be used in conjunction with traditional sash window catch. These should be replaced by more robust models, such as those with double screws or sprung levers in order to reduce the risk of being hit with hammers.
Sash-window frames are typically constructed from oak or slow-grown deal. If the glazing bars remain intact, they should be retained. If feasible, the cills made of timber should be replaced by wood that matches. PVC-U companies usually offer a one stop shop installation service, removing and replacing windows on a complete home in one day, without the need to engage other tradespeople, or coordinate visits from a number of different suppliers.
4. Ventilation
When sash windows were first introduced in the 17th century, they allowed a significant amount of light to flood into the buildings. At the end of the 18th century, they had been modified to allow more light could be let into rooms. Larger glazing panes were also created. The result was a lighter look and windows with more elegance.
The introduction of sash windows also necessitated an entirely new range of ironmongery. Early pulleys were constructed from wood. Later Victorian ones were made of brass or a mixture of leaded and wood. There were also various types of shutter hinges and knobs. The ironmongery components should be kept and cleaned so that the quality of their design can be appreciated.
To keep them in good condition, timber windows need to be maintained. Inattention to maintenance can result in:
Sashes that do not slide easily.
Holes in the frame which allow water to get in and cause damage and decay.
break down of putty allowing water penetration, which can lead to decay in the frame and cill.
Steel casement windows became popular in the I920s and I930s due to their strength and slim, and also because they were cheap and matched the trend towards healthy living. However, research has revealed that traditional softwood sash windows are just as efficient in thermal efficiency as double-glazed windows made of PVC-u, and can be more attractive than the sleek lines of modern casement windows.
The industry of replacement windows was able to convince homeowners that their old windows were decayed drafty, noisy and beyond repair. Many old timber windows can be repaired and used for many more years with minor repairs.
5. Maintenance
A traditional sash window needs regular maintenance and inspection. Inability to maintain it properly could result in the sash cords breaking, a lot of wear on the glazing bars, and deterioration of paint and putty. The removal of sashes could also cause structural movement in the frame, which can cause the sash to not close properly. The sash could also get stuck in its open position, allowing water and draughts into the building.
The damage to timber windows is often caused by moisture infiltration. This can be avoided with regular repairs as well as thorough painting, and then removing the cause of dampness. The paint can be removed to reveal the soft, rotting wood. Any rotten timber sections should be cut out and the affected part carefully wrapped or pieced back using replacements made from the same type of timber as those remaining. This method of repair increases the amount original fabric and is one of least invasive ways to treat timber-to-timber rot.
The use of a wood consolidant made from resin is another alternative to the traditional method of staining and sanding. The product is brushed on the surface of the wood to protect it and stabilise it. It is particularly useful in the treatment of pulleys and sash cords where it can help to prevent the breakage.
It is important that any ironmongery from the past 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 recommended that fittings made of aluminum, such as sashlifts and chainstays, should be avoided since they can cause deterioration and corrosion of timber frames and sashes.