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Maintaining Timber Windows

A well-maintained Wooden window repair window is an essential element of a building that is historic. It demonstrates in various degrees the different materials and technologies design, craftsmanship and aesthetics of the time from which it dates.

If it is possible, repairs must be done in-situ. Repair systems made of resin can be used to repair the worst areas of decay without removing the whole window.

Durability

The windows made of timber in many historic buildings were made to last for a long time. However, they need to be maintained to ensure they look good and operating correctly. The most frequently-asked maintenance tasks include sash-cord repairs and re-tightening the sash pulleys and painting. There is a growing need to upgrade the timber windows to improve energy efficiency. This can include replacing old glazing units, fixing existing window rebates or installing new cills to improve air seal.

One of the main issues with traditional windows is the damage caused by corrosion of the paintwork. This is especially important when sash windows are concerned because the gaps between sashes may be quite large. In these situations water can get into the paint film and cause decay of the putty and underlying wood. The rotting can be exacerbated due to weather conditions that are poor. To stop this from happening, windows should be painted regularly with an exterior wood paint.

The areas that are damaged should be repaired with resin-based products. This will ensure the maximum amount of original fabric preserved. It is also important to reduce the number of holes that are drilled into the frame for cable entry, as they could admit water and lead to decay.

The structural movement of the wall could also cause distortions in the frame as well as the sash window repair cambridge. This can result in the sash fitting incorrectly, jamming or sticking in the opening, or breaking glass. Often this can be corrected by fitting new sash boxes that have been made from slow grown deal (pine) or oak. The cill should be constructed from durable hardwood such as oak to avoid any movement between the old and new work.

There are now several companies that produce Boston pattern wooden sash to fit into the majority of existing openings. They are available in a variety of sizes and finishes to meet the requirements of the modern homeowner. These new sash, when combined with quadruple draft strip and a more efficient thermal insulation, could make a significant difference to the efficiency of your home's energy usage.

Aesthetics

Many old timber windows have a great aesthetic value because they typically show, in a particular way the materials and technologies and architectural taste of the time in which they originate. They also may have a significant historical significance in their individual cases. This is especially true of early unglazed windows in timber-framed buildings, in which the majority were simply a series openings in structural frames subdivided horizontally by mullions with vertical iron or wood bars in order to protect against intrusions.

It is essential to preserve the appearance of traditional timber window joinery. As soon as you notice any signs of decay due to moisture penetration, it is important to stop it. This is best done by a thorough painting process, especially in areas in which there is already damage or degradation. It is advisable to use paints that are specifically designed to be used as part of the system (primer undercoat, finish) and to follow the manufacturer's recommendations in terms of preparation and the amount of coats required at each stage.

The fungus responsible for wet rot can spread quickly in old timber windows. To prevent this from happening, take out any rotten or damaged parts as soon as you can. Replace rotting wood with slow-growing deal (pine), and when possible, the exact type of wood as the one that is being removed, to avoid the possibility of differential movement.

In the late period of the 17th century and the middle of the medieval period, glass became cheaper and more abundant, and the openings for glazed glass in timber-framed structures gradually became more sophisticated, with tracery made of wood moulded mullions, moulded mullions, and deep projecting cills. In the past, more often, the glass was set within rebated frames and then pinned by 'glazing sprigs' rather than into lead cames. This method of double glazing repairs is not just less prone to leaks but also allows for much wider, clearer sheets of glass to be used in the windows than would otherwise be possible without the need for lead lights.

Energy efficiency

Traditional timber windows have excellent energy efficiency due to their thickness and multi-layer construction. They also pay attentive attention to detail. They also feature large glass areas and deep projecting cills that reduce air infiltration. With secondary glazing and draughtproofing, the windows can be improved to increase their energy efficiency. However it is essential to keep in mind that any such measures should be viewed in the context of the overall appearance and integrity of the window in its original form.

It makes sense to fix or upgrade historic windows rather than replace them, especially when the improvements in thermal efficiency can be made through simple fixes. The windows that are historic have a lot of historical significance, since they show a range in technological advancement and changes in the architectural style. The pressures to replace such windows are usually based on the assumption that windows that are old will need to be replaced in the near future, but they are capable of serving for 150, 200 and even 250 years if properly maintained.

It is important to recognize that decay issues associated in traditional timber windows are preventable by quick and thorough repairs. In addition it is crucial to spot damp penetration issues and address them swiftly to avoid serious damage. Early deterioration of paint is a major problem because it allows moisture to penetrate the wood and cause wet rot. The damage is usually not noticed until the paintwork becomes damaged or wavy, but can cause significant structural damage, and could lead to further decay.

A good quality paint will prevent this moisture from entering. It is also important to keep the paintwork clean to avoid mould and condensation. The use of modern synthetic paints can be problematic because they are usually designed to be water-resistant and this can lead to the formation of mildew within the window frame.

Most older windows were made from sapwood-rich timber. These timbers can deteriorate very quickly when exposed to moist weather, however they can be protected by a thorough preservative treatment before they are put to use. It is crucial to select the right kind of wood for your location and climate, as these factors will affect the durability of the joinery. Local window manufacturers produce a range of sash made of timber that can be adapted to fit specific historic openings. They can be made in the standard Boston pattern or in custom sizes to suit historic buildings.

Maintenance

The life span of windows made from timber can be extended through regular inspections carefully redecoration, and timely repair. The most common reason for the decay is moisture infiltration through deteriorated paint and putty. This can be avoided by using a good wood preservative and thoroughly painting the wood.

It is crucial that upvc repairs near me to old sash and casement windows are done correctly and done without causing any disturbance. It is possible to repair several traditional designs of timber windows without having to remove the frame. This is a must whenever it is possible. Loose or peeling paint must be removed with care and lightly sanded to improve the key of the surface, allowing for a better adhesion of the new coating. It is essential to not remove old paint layers, which may have historical significance.

If a piece of timber is rotten, the best way to proceed is to eliminate the rotten material and replace it with spliced-in inserts that are shaped to match existing profiles. The inserted wood should also be treated with wood preservative and the connection between the cill for timber and the sub-cill for masonry should be sealed.

It is tempting to replace traditional windows with PVC U, particularly when the installer offers an 'all-in-one' installation which includes removal and replacement in one day. It is important that the installers of replacement windows are aware of the history and construction of traditional timber frames. This will allow them to make the right recommendations for energy efficiency improvements and other technological upgrades that do not alter the character of a historic building. Those who provide replacement windows should be registered with a Competent Persons Scheme, such as FENSA. This will ensure that the replacements are deemed to be approved under Building Regulations as a suitable alternative. It is, of course, possible for a skilled and experienced carpenter to install PVC-U windows that are sympathetic to the character of the original building. This is especially relevant when windows are located within conservation areas or listed buildings.