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Maintaining Timber Windows

A well-maintained wooden window is an essential component of a historical building. It reflects, in various levels, the materials and technologies of the time period it was made, the craftsmanship and architectural taste.

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

Durability

The timber windows in many old structures were designed to last for hundreds of years. They do require maintenance to ensure they look good. Maintenance tasks include repairs to sash cables, retightening of pulleys for sash and painting. The demand for upgrading timber windows to improve energy efficiency is also growing. This may mean replacing old glass units, repairing existing window companies cambridge rebates or putting in new cills to allow for Double Glazing Cambridge improved air sealing.

One of the main issues with traditional windows is damage caused by the corrosion of the paintwork. This is particularly true when windows with sash are involved since the gaps between sashes can be quite wide. In these instances, water can penetrate the paint film and cause rotting of the putty as well as underlying wood. Weather conditions that are not ideal can accelerate the decay. To prevent this windows from becoming rotten, they must be painted regularly with an exterior wood paint that is suitable.

Corroded areas should also be repaired using resin-based products. This will ensure that the maximum amount of original fabric retained. It is also important to limit the number of holes drilled into the frame for cable entry as these can let in water and cause decay.

The structural movement of the wall could also cause deformations in the frame and the sash. This can result in the sash fitting incorrectly and jamming or sticking into the opening, and even broken glass. This can often be fixed by the fitting of new sash boxes constructed from slow-growing deal (pine) or oak. The cill must be made from a sturdy hardwood, like oak, in order to prevent any shifting between the new and old work.

There are a variety of companies that produce Boston pattern wooden sash that fit in with the majority of openings. They are available in a variety of sizes and finishes to suit the requirements of the modern homeowner. These new sash, when coupled with quadruple draft strips and a more efficient thermal insulation, could make a significant difference to the energy-efficiency of a home.

Aesthetics

Many old wooden windows have an excellent aesthetic value since they usually illustrate, in some way the materials and technologies and architectural style of the time in which they originate. They may also have significant historical value as a set. This is especially true of early windows that were not glazed in timber-framed buildings, where the majority were series of openings within structural frames that were subdivided horizontally by mullions with vertical iron or wood bars in order to protect against intruders.

It is important to maintain the appearance of traditional timber window companies cambridge joinery. As soon as you notice any decay caused by moisture penetration it is crucial to stop it. It is recommended to do this with thorough painting, particularly if there is damage or deterioration. It is best to use paints that are designed to be used in a system (primer undercoat and finish) and follow the manufacturer’s recommendations for preparation and number of coats at each stage.

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

In the late period of the 17th century and the middle of the medieval period, glass became more affordable and plentiful so that glazed openings in timber-framed structures gradually became more elegant with wooden tracery, moulded mullions and deep protruding cills. In recent times, glass was fixed into frames that were rebated using glazing sprigs rather than lead cames. This method of double glazing in cambridge glazing cambridge, official site, not only makes the windows less likely to leak and also allows larger sheets of glass to be used than would have been feasible without the use of leaded lights.

Energy efficiency

Traditional timber windows offer a good energy performance due to their thickness and multi-layer construction. They also pay careful attention to detailing. They also feature large glass areas and projecting cills that reduce air infiltration. Windows can be designed to increase their energy efficiency through draughtproofing and secondary glazing. It is important to remember that these measures should be taken into consideration in relation to the overall appearance and integrity of the original windows.

It makes sense to door repair cambridge or upgrade existing historic windows rather than replace them, especially when the improvement in energy efficiency can be made through simple repairs. Older windows typically have an historic value that shows a variety of technical development and changes in architectural tastes. The pressures to replace these windows are usually based on the assumption that the windows that are old will need to be replaced in the near future, but most are still capable of serving for 150, 200 or even 250 years if properly maintained.

It is essential to realize that decay issues with traditional timber windows are preventable by quick and thorough door repairs cambridge. In addition, it is essential to identify damp penetration problems and to remedy them quickly to avoid major damage. The early deterioration of paint can be a problem because it allows moisture to penetrate into the wood, which can cause wet rot. This damage is often not evident until the paintwork becomes wavy or cracked however, it can cause serious structural damage, and could lead to further decay.

A good quality paint will stop this moisture penetration. It is also essential to keep the paintwork spotless in order to prevent condensation and mould growth. Modern synthetic paints can pose a problem because they are usually formulated to be water-resistant, which can result in the formation of mildew in the window frame.

The majority of windows from the past were constructed from timber with the majority of sapwood. These timbers can deteriorate quickly when exposed to rain, however they can be protected by a thorough preservation treatment before use. It is also crucial to ensure that the kind of wood used is suited to the location and climate conditions, as these elements affect the durability of the joinery. Local window manufacturers offer an array of timber sash which can be customized to fit historic openings. They can be made according to the standard Boston pattern dimensions, or to custom sizes that fit with the architectural style of historic buildings.

Maintenance

The life span of windows made from timber can be extended significantly through regular inspections, careful redecoration and timely repair. The main reason for decay is moisture infiltration through the deterioration of paint and putty. This can be prevented by using a quality wood preservative and thoroughly painting the wood.

Repairs to old sash windows and frameless casement windows should be done with care and minimal disruption. It is possible to repair many traditional timber window designs without removing the frame. This is a must whenever it is possible. Remove peeling or loose paint and lightly sand the area to improve the "key" of the surface. This will allow the new coating to stick better. It is crucial to avoid removing old paint layers that may have historical value.

If a piece of timber has begun to decay, the best course of action is to eliminate the rotten material and replace it with spliced-in inserts that are shaped to match existing profiles. The wood that is being inserted should be treated with wood preservative, and the junction between the timber cill and sub-cill for masonry should be sealed.

It is tempting to replace traditional windows with PVC U, particularly if the installer offers an all-in-one installation that includes both replacement and removal in one day. It is essential that installers of replacement windows have a thorough understanding of the history and construction of traditional timber frames. This will allow them to make the right suggestions for energy efficiency improvements and other technological upgrades that won't alter the appearance of a building that is historic. Those providing replacement windows should be registered with a Competent Persons Scheme like FENSA. This will ensure that the replacements are deemed as a suitable solution under Building Regulations. It is quite possible for an experienced and skilled carpenter to install PVC-U windows that fit the the original building. This is particularly true when the windows are in conservation areas or listed buildings.