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Maintaining Timber Windows

A well-maintained wooden window is a crucial element of a building that is historic. It is a representation of the materials and technologies, craftsmanship and architectural taste of the time from which it dates.

Whenever possible repairs to windows that are already in use should be carried out in situ. Repairing the most deteriorated areas of decay can be done by using specialized resin-based systems.

Durability

Timber windows were built to last for hundreds of years. But, they have to be maintained to ensure they look good and operating correctly. Maintenance tasks include repairs to sash cords as well as tightening the pulleys on sash, and painting. The demand for enhancing windows made of timber to improve energy efficiency is also growing. This can include replacing old double glazing cambridge units, repairing existing window rebates or installing new cills for improved air seal.

The deterioration of paintwork is a major problem with traditional windows. This is particularly important when windows with sash are involved since the gaps between sashes can be extremely wide. In these cases water can get into paint film and cause rotting to the wood or putty beneath. Weather conditions that are not ideal can accelerate the decay. To stop this from happening, windows need to be regularly painted with an exterior wood paint.

Corroded areas should be repaired using resin-based products. This will ensure that the maximum possible amount of the original fabric is preserved. It is also essential to minimise the number of holes that are drilled into the frame to allow cable entry, as they could admit water and lead to decay.

The structural movement of the wall can cause deformations in the frame and the sash. This can lead to the sash fitting incorrectly jamming, sticking or sagging in the opening, or breaking glass. This can often be fixed through the installation of new sash boxes that have been constructed from slow-growing deal (pine) or oak. The cill must be constructed of a durable hardwood like oak to prevent movement between the existing and new work.

To reduce the risk to reduce the risk of this happening, there are a number of companies who manufacture Boston pattern wooden sash that will fit into the majority of existing openings. The sash is available in a variety of sizes and finishes to meet the needs of the modern homeowner. These new sash, when coupled with quadruple draft strips and a more efficient thermal insulation, could make a huge difference to the efficiency of your home's energy usage.

Aesthetics

Many old wooden windows have an excellent aesthetic value as they often show, in a particular way the materials and technologies and architectural taste of the period from which they date. They may have significant historical value as a set. This is especially true of windows that were unglazed in the early days of timber framed buildings where the great majority were merely a series of openings in the frame, which were divided horizontally into mullions and wood or iron bars to keep out invaders.

It is important to maintain the appearance of traditional timber window joinery. When you spot any decay caused by water penetration it is essential to stop it. This is best done by a thorough painting process, especially in areas that have already suffered damage or deterioration. It is advisable to use paints that are designed to be used as part of a system (primer as well as undercoat, finish and primer) and follow the manufacturer's instructions in terms of preparation and the amount of coats needed at each stage.

Wet rot is a typical problem for older timber cambridge windows. The best method to stop it from growing is to eliminate any damaged or rotten sections as soon as you can to prevent the spread of the fungus that causes it. Replace rotting wood with slow-grown deal (pine), and if possible, the same kind of timber as the one that is being removed, to avoid differential movement.

Glass became cheaper and more abundant in the late medieval period and into the 17th century. This led to glazed openings on timber-framed houses became more complex with moulded mullions, tracery made of wood and deep cills projecting into the air. In the past, more often, the glass was set within rebated frames and secured by 'glazing sprigs' rather than being inserted into lead cames. This method of glazing not only makes windows less likely to leak, but also allows for larger sheets of glass to be employed than would be possible without the use of leaded lights.

Energy efficiency

Traditional timber windows have an excellent energy performance due to their thickness and multi-layer construction, as well as careful attention to detailing. They also have large glass areas and deep projecting cills that reduce air infiltration. With secondary glazing and draughtproofing windows can be made more efficient to improve their energy efficiency. However it is crucial to keep in mind that any such measures should be evaluated in relation to the overall appearance and integrity of the original window.

It is logical to upvc door repair or upgrade existing windows that are older rather than replacing them, particularly when improvements in energy efficiency can be made through simple fixes. Historic windows often have a historical value that demonstrates a range of technical development and changes in architectural tastes. The pressures to replace such windows are typically based on the assumption that the windows that are old will need to be replaced in the near future, however the majority of them are capable of providing service for 150, 200 and even 250 years, if properly maintained.

It is essential to realize that decay issues with traditional timber windows are easily prevented with quick and thorough repairs. Additionally, it is essential to spot damp penetration issues and address them swiftly to avoid serious damage. Early deterioration of paint is a major problem since it allows moisture penetrate the wood and cause wet rot. This type of damage is typically not evident until the paintwork becomes wavy or cracked, but can cause significant structural damage and lead to further decay.

A good quality paint will stop this moisture penetration. To avoid condensation and mould it is essential to keep the paintwork as clean as you can. Modern synthetic paints pose a challenge because they are water-resistant and may cause mildew to grow within the window frame.

The majority of older windows were made from timber that contained a high proportion of sapwood. These timbers are susceptible to deterioration quickly when exposed to wet weather conditions, but they can be protected with a thorough preservative treatment before they are used. It is also important to ensure that the kind of timber used is well-suited to the climate and site conditions, since these factors will influence the durability of the joinery. Local upvc window renovation manufacturers create a range of sash made of timber that can be adapted to fit specific historic openings. They can be constructed according to the standard Boston pattern dimensions or to specific sizes that are in keeping with the historic architecture.

Maintenance

The life span of windows made from timber can be extended through regular inspections as well as a careful redecoration and prompt repair. The most common reason for the decay is moisture intrusion through the deterioration of paint and putty. This can be prevented by using a high-quality wood preservative and painting the wood thoroughly.

Repairs to old sash windows and window doctor near me frames made of casement should be done with care and minimal disruption. Many of the traditional designs for timber windows can be repaired without removing the frame, and this approach should be taken whenever possible. Loose or peeling paint must be removed with care and sanded lightly to increase the "key" of the surface and facilitate a better adhesion of the new coating. Care should be taken to avoid stripping paint layers that may have historic value If these are present it is recommended that a study of the paint be carried out.

When a section of wood has rotted the best way to deal with it is to take it off and replace it with timber inserts designed to match existing profiles. The wood that is being inserted should be treated with a wood preservative and the joint between the cill for timber and the sub-cill for masonry should be sealed.

It can be tempting to replace traditional windows with PVC u, especially when the installer offers an all-in-one installation that includes removal and replacement within a single day. It is essential that installers of replacement windows are aware of the history and construction of traditional timber frames. This will allow them to make the appropriate suggestions for energy efficiency improvements and other technical upgrades that do not alter the character of a historic building. Upvc Window Repairs Near Me replacements should be registered with a Competent Persons Scheme such as FENSA. This will ensure that the replacements are approved as a suitable option under Building Regulations. It is quite possible for an experienced and skilled carpenter to install PVC-U windows that are sympathetic to the character of the original building. This is especially true when windows are situated in listed buildings or conservation areas.