15 Amazing Facts About Sash Windows Cambridge
How to Restore Timber Sash Windows in Cambridge
Many homes in Cambridge feature traditional sash window and homeowners are proud of their appearance. However, sash windows can get stuck and be difficult to open or close. This is typically due to moisture that can cause the wood to expand.
Traditionally, window boxes used chains, cotton cords or weights made of lead to operate. Modern sash windows come with hidden springs to overcome this issue.
1. Aesthetics
Contrary to PVC-u windows which are made to modular imperial sizes Timber sash windows can be restored to their original dimensions. This allows the restoration to meet the current energy standards while still complying with conservation areas regulations. It also provides windows that are superior to the uPVC options.
Sliding sash windows were initially only used in large buildings or public buildings, but this changed as production became cheaper 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. Sash windows were simple to operate and allowed light to enter rooms without the need for curtains.
Early windows were plain glass, but in the 17th century, sash windows started to become more decorative, with coloured glazing bars and moulded mullions. These were very expensive at the time but as glass production improved and cost-effective, they became a feature of many of the period homes.
In the 19th century, it was possible to create large, strong glasses that didn't require support bars. This allowed the frame's size to be enlarged further and this in turn allowed for a wider view out of the window. This was a significant advancement.
The introduction of the double-hung sliding sash was a important improvement that was made towards 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 the building.
Oak was used in older examples and more prestigious buildings. A split bead divides the two sashes, and it is essential that it is maintained in order to avoid rattles and draughts. It is also essential that the idler and sash pulley wheels are in good shape as they assist in operating the window.
2. Energy efficiency
Sash windows replaced hinged cases as clearer and larger sheets became available. They were glazed with plate glass placed within timber frames with rebates and secured with glazing sprigs, with putty on both sides to ensure they were watertight. This kind of glazing gradually replaced the leaded light bulbs.
Sashes were introduced, which led to an increase in demand for ironmongery. The basic fittings included brass pulleys (and later cast-iron) weights, sash stoppers shutter hinges, handles and shutter hinges as well as various fasteners used to secure the sashes. These were often decorated in designs, inscriptions, and patterns engraved to identify the maker.
With regular maintenance, sash windows are very energy efficient. Without this maintenance, they can become noisy. Draughts can also be caused by the deterioration of paint and putty. It is possible to fix this issue with wood-to-timber products.
The market for replacement windows is based heavily on the notion that older windows are beyond repair and are not able to be maintained economically. However they can be maintained with a bit of attention. Repairs can be costly and cause lots of disruption to the home. To prevent this, many homeowners prefer to replace their windows with PVC-u windows from one of the largest 'one stop shop' installation companies. These can remove and replace all the windows in an entire house in just one day, avoiding the need to coordinate multiple tradesmen and making the entire process much faster. These windows can be fitted with energy-saving double glazing to get more energy efficient ratings than a traditional windows with sash. These double-glazed windows aren't capable of replicating the proportions and section of the sashes made of timber from the past.
3. Security
Traditional windows can be secured without compromising their style. There are many types of ironmongery that can be fitted, including sash chains, mortice bolts and locks for sash. They can be fitted in a manner that the window can be open for ventilation and cleaning. These products are often unobtrusive as they are designed to be used in conjunction with sash windows. They can be used alongside traditional sash-window catches and should be replaced with more robust models (such ones with double screws) or sprung levers to reduce the possibility of them being hammered out.
Sash-window frames are typically made from oak or slow-grown deal. If the glazing bars are still intact, they should be retained. Where it is possible, the cills of the timber should be replaced with wood that is in line with. PVC-U companies usually offer a one stop shop installation service, removing and replacing windows across a home in a single day without the need to engage other tradespeople, or coordinate visits from different suppliers.
4. Ventilation
Sash windows were introduced in the 17th Century and allowed for a significant amount of light into buildings. At the end of the 18th century, they had been adapted so that even more light could be let into the rooms. Larger glass panes were also produced. The result was a lighter look and windows that were more elegant.
Sash windows were introduced and required a new type of ironmongery. Early pulleys could be made from wood. Later Victorian ones were made of brass or a mixture of leaded and wood. There were also a variety of types of shutter hinges and knobs. double glazing repairs cambridge must be kept clean and preserved in order to appreciate their beautiful design.
To ensure they remain in good condition, timber windows need to be maintained. Inattention to maintenance routinely could lead to:
Sashes that do not move effortlessly.
Holes in the frame which allow water to enter and cause damage and decay.
break down of putty allowing water penetration, which could cause decay in the frame and cill.
In the I920s and I930s steel casement windows gained popularity because they were strong slim and inexpensive and also matched the fashion for healthy living. Studies have shown that softwood sash windows are just as effective as PVC-u windows, and may even be more attractive.
The replacement window industry has made a significant effort to persuade house owners that their old windows are rotten, draughty and beyond economic repair. Many old timber windows are repairable and can be utilized for a longer period with minor repairs.
5. Maintenance
Traditional sash windows require regular maintenance and inspection. If you fail to maintain your sash window, it could cause the sash cords breaking and the glazing bars wearing out excessively. It can also cause paint and putty to degrade. The removal of sashes can also result in structural movement within the frame, causing the sash to not close properly. The sash may also become stuck in its open position, which allows water and draughts to enter the property.
Damage to timber windows is usually caused by moisture penetration. This can be avoided by thorough painting, regular repairs, and removing the cause of dampness. The paint can be removed to reveal the soft, decaying wood. The sections that are rotting must be removed with care, and the affected area should be scarfed or glued together 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.
A wood condenser made of resin is an alternative to the traditional staining or sanding. It is brushed onto the surface of the wood to protect it and stabilize it. It is especially useful for the treatment of pulley cords and sash where it can prevent breakage.
It is crucial that any old ironmongery like sash stays and latches be kept and rehabilitated instead of being replaced. They can be extremely difficult to replace without damaging the the original design. It is also recommended that the use of modern aluminum fittings like sash lifts and chain stays is avoided whenever possible since they can cause corrosion and deterioration to frames and sashes made from timber.