An Sash Windows Cambridge Success Story You'll Never Be Able To
How to Restore Timber Sash Windows in Cambridge
Many homes in Cambridge have sash windows that are traditional and the homeowners are proud of their appearance. Sash windows can become stuck and are difficult to open or close. This is usually due to moisture which can cause the timber to swell.
Box sash windows were previously operated using chains or cotton cords, as well as lead weights. Modern windows with sash springs are concealed to solve this problem.
1. Aesthetics
Timber sash windows, in contrast to PVC-u windows which are manufactured in imperial sizes that are modular, are able to be restored to their original size. This allows the restoration to meet modern day energy requirements while ensuring compliance with conservation area regulations. It also gives a window with a far superior appearance than uPVC alternatives.
Sliding windows with sash were initially only found in large buildings or public buildings, however this changed as production became less expensive and craftsmen could create larger frames using more glass. In the 18th century, windows made of sash were the predominant design of wood in the majority of British properties. As they were easy to open sash windows allowed light into rooms without the need for curtains.
Early windows were simple 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 time but as glass production became more efficient and less expensive, they became a part of numerous period houses.
In the 19th century, it became possible to produce large, sturdy glasses that didn't need supporting bars. This allowed the frame size to be enlarged further, which gave a better view out of the window. This was a very important improvement.
Another significant improvement was the introduction of the double-hung sliding windows at the end of I920s and at the beginning of I930s. The double-hung sliding sash was a significant improvement that came about at the end of the I920s and beginning of the I930s.
Oak was used for older examples and more prestigious buildings. It is important to maintain the parting bead that separates the sashes. This will prevent rattles and draughts. The sash pulleys, idler wheels and sash rollers are also vital to the functioning of the window.
2. Energy efficiency
Sash windows replaced hinged cases as larger and clearer sheets were made available. They were made of plate glass, set in timber frames with rebates and secured with glazing sprigs, with putty on both sides to make them watertight. This kind of glazing gradually replaced leaded lights.
The introduction of sashes created an need for a greater variety of ironmongery, with the most basic fittings being brass pulleys, lead (and later cast iron) weights, sash stoppers shutter hinges and knobs, and a range of fasteners used to keep the sashes to their the right place. These were usually decorated with designs, inscriptions, and patterns engraved to identify the maker.
Sash windows are energy efficient when they are maintained regularly. However, without this maintenance they can become draughty and let in cold air. Paint and putty may also cause draughts. This can be remedied by using proprietary wood-to-timber repair products.
The market for replacement windows is based heavily on the perception that old windows are beyond repair and cannot be maintained economically. However they can be maintained with a bit of attention. However, repairs to these windows can be expensive and involve considerable 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 and remove all the windows in an entire house in a single day, avoiding the need to coordinate different tradesmen and making the entire process much more efficient. window repairs near me repairmywindowsanddoors can be equipped 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 resembling the proportions or section of sashes from old timber.
3. Security
Traditional windows can be secured without compromising their appearance. Ironmongery, such as mortice bolts, sash chain, and sash lock can be installed. These can be put in place to ensure that the window is capable of being opened to allow ventilation or for cleaning. These windows are typically unobtrusive as they are designed to be used in conjunction with sash windows. They can be used in conjunction with traditional sash window catches and must be replaced by more robust versions (such as those incorporating double screws) or spring levers to decrease the risk of them being hammered open.
Sash-window frames were typically constructed from slow-growing deal or, in the more prestigious houses made of oak. When glazing bars have survived they should be preserved, and if it is feasible, the wood of the cill should be replaced by the same wood. PVC-u companies often offer a one stop shop installation service, removing and replacing windows on an entire house in a day without the need to involve other tradespeople or coordinate visits from different suppliers.
4. Ventilation
Sash windows were introduced in the 17th century and allowed for a huge amount of light to be absorbed into buildings. By the end of the 18th century they were altered to allow even more light into rooms, and larger glazing panes began to be produced. The result was a much more streamlined appearance, and windows that had a higher quality of design than before.
Sash windows were introduced and required a new range ironmongery. Early pulleys could be made of wood. Later Victorian ones were made of brass or a mix of wood and lead. There were also different kinds of knobs and shutter hinges. These ironmongery pieces must be cleaned and preserved to appreciate their exquisite design.
Timber windows require regular maintenance to keep them in good shape. Inattention to maintenance routinely could lead to:
Sashes that do not move effortlessly.
Holes in the frame that allow water to get in and cause decay and damage.
break down of putty allowing water to penetrate, which can lead to decay in the frame and cill.
In the I920s and I930s steel casement windows gained popularity due to their durability slim and inexpensive and also matched the fashion for healthy living. Research has shown that softwood sash windows are just as efficient as PVC-u windows and can even be more attractive.
The replacement window industry has done a great job convincing homeowners that their old windows were rotten, drafty and beyond economical repair. The reality is that many older windows made of timber are in good condition and with minor repairs can easily be repaired for many years to be.
5. Maintenance
Traditional sash windows require regular maintenance and inspection. If you fail to maintain your window's sash, it could lead to the sash cords breaking, and the glazing bars wearing out excessively. It could also cause paint and putty degrade. The removal of the sashes may also cause structural shifts within the frame, which causes the sash to become misaligned and in a position that it is not able to close properly. The sash can also be stuck in the open position, allowing water and draughts into the property.
Damage to timber windows is often caused by moisture entry. This can be prevented with thorough painting, periodic repairs and elimination of the cause of dampness. Wet rot is recognisable due to the wavy appearance of the existing paint which can be stripped away to reveal soft, rotting wood. Any rotten sections of timber must be removed and the affected area carefully cut or pieced with replacements made of the same kind of timber as the ones remaining. This method of repair maximises the amount of fabric left, and is among the least invasive methods for treating decay caused by timber.
The use of a wood consolidant made from resin is a different option to the traditional method of sanding and staining. It is brushed on the surface of the timber to stabilize it and protect it from further damage. It is particularly beneficial for the treatment of pulleys and sash cords which can help prevent the breakage.
It is important to restore and not replace any historic ironmongery such as sash latches and stays. It is difficult to replace these items without compromising their original design. It is also recommended that fittings made of aluminum, such as sashlifts and chainstays, be avoided as they could cause corrosion and deterioration of timber frames and sashes.