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Maintaining Timber Windows

A well-maintained and maintained timber window is an important element of the historic fabric of a structure. It reflects in different degrees, the materials and technologies of the time in which it was constructed, the craftsmanship and architectural taste.

If it is possible, repairs must be done in-situ. The repair system that is based on resin can be used to repair the most damaged areas of decay without removing the whole window.

Durability

Timber windows were designed to last for centuries. They do require maintenance to keep them looking good. Maintenance tasks include sash cord repairs as well as tightening the pulleys on sash, and painting. The need to upgrade timber windows in order to improve energy efficiency is also growing. This may include replacing old glazing units, repairing the window installation cambridge rebates that are in place or installing new cills to improve air seal.

The corrosion of paintwork is a major issue with traditional windows. This is particularly important when windows made of sash are involved because the gaps between the sashes can be very wide. In these situations water may get through the paint film and cause decay of the putty and underlying wood. The rotting can be exacerbated by poor weather conditions. To stop this from happening, windows should be painted regularly with an exterior wood paint that is suitable.

Areas that have been damaged must be repaired with resin-based products. This will ensure that the greatest amount of the original fabric is preserved. It is also important to minimise the number of holes drilled into the frame to allow cable entry, as they could admit water and lead to decay.

The wall's structural movement could also cause distortions in the frame and the sash. This can lead to sash no longer fitting correctly, sticking or jamming in the opening and broken glazing. Most often, this is corrected by the fitting of new sash boxes that have been constructed from slow-growing deal (pine) or oak. The cill needs to be constructed of a durable hardwood, like oak, in order to prevent any shifting between the new and old work.

To help reduce this problem, there are now a number of companies who produce Boston pattern sash made of wood that can be fitted into most openings. They are available in a range of sizes and finishes to suit the needs of the modern homeowner. The new sash, combined with quadruple draft strip and a better thermal insulation, can make a significant difference to the efficiency of your home's energy usage.

Aesthetics

Many old timber windows have a great aesthetic value as they often show, in a particular way the materials and technologies and architectural taste of the time in which they originate. They could have significant historical value on their own. This is particularly true of windows that were unglazed in the early days of timber framed buildings which were simply a series of openings within the frame, which were divided horizontally into mullions and wood or iron bars to keep out intrusions.

It is important to maintain the appearance of traditional timber window joinery. As soon as you see any signs of decay caused by water penetration it is essential to stop it. This is best accomplished by a thorough painting process, especially in areas in which there is already damage or deterioration. It is advisable to use paints that are specifically designed to be used part of the system (primer as well as undercoat, finish and primer) and follow the manufacturer's instructions regarding preparation and number of coats required at each stage.

Wet rot is a frequent issue in older timber windows. The best way to stop it becoming a problem is to take out sections that are damaged or rotten immediately to prevent the spread of the fungus that causes it. The replacement of wood that is rotting should be carefully undertaken by using a slow-growing deal (pine) and, whenever possible, the same species as which is being removed to prevent any movement differences between the new section and existing timbers.

In the late the 17th and early the medieval periods, glass became cheaper and more abundant, and the openings for glazed glass in timber-framed structures gradually became more elegant with wooden tracery, moulded mullions and deep projection cills. The glazing was increasingly set within rebated frames and secured with 'glazing sprigs' rather than being inserted into lead cames. This method of glazing is not just less prone to leaks but it can allow for larger, clearer sheets of glass to be used in windows than would otherwise have been possible without the need for lead lights.

Energy efficiency

Traditional timber windows offer excellent energy efficiency due to their thickness, multi-layer construction and very attentive attention to detail. The large glass areas, the deep projecting cills and large glazing areas reduce air infiltration. The windows can be modified to increase their energy efficiency with draught-proofing and secondary glazing. However it is essential to remember that such measures should be viewed in terms of the overall integrity and appearance of the window mechnism repair in its original form.

As a result, retaining existing historic windows that are in need of repair instead of replacing them is sensible particularly when thermal improvements can be achieved cost-effectively through simple repairs and upgrades. Historic upvc windows cambridge often have a historical value that shows a variety of technological advancement and changes in architectural taste. The pressures to replace these windows are typically based on the assumption that windows of the past will require replacement in the near future, but most are still capable of providing service for 150, 200 and even 250 years if properly maintained.

It is important to recognize that decay problems with traditional timber windows can be easily prevented with timely and thorough repairs to Upvc doors. It is also crucial to spot damp issues and address them promptly in order 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. The damage is usually not apparent until the paintwork becomes cracking or wavy, but can cause significant structural damage and lead to further decay.

A high-quality paint will stop this moisture penetration. It is also essential to keep the paintwork clean to avoid condensation and mould growth. Modern synthetic paints pose a challenge because they are often water-resistant and may cause mildew to develop in the window frame.

The majority of windows from the past were constructed of sapwood-rich timber. These timbers can deteriorate quickly when exposed to rain, however they can be protected with a thorough preservation process prior to use. It is important to choose the right kind of wood for your location and the climate, since these factors can affect the durability of the joinery. Local window seal repairs manufacturers offer various types of sash timbers that can be adapted to fit historical openings. They can be produced 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 by regular inspection as well as a careful redecoration and prompt repair. The main cause of decay is the penetration of moisture through deteriorated paint or putty. This can be prevented by using a quality wood preservative and thoroughly painting the wood.

It is important that repairs to the old sash and aluminium casement windows cambridge windows are done correctly, and carried out with minimal disruption. Many of the traditional designs for timber windows can be repaired without dismantling the frame, and this option should be used whenever it is possible. Loose or peeling paint should be removed with care and sanded lightly to improve the "key" of the surface and facilitate a better adhesion of the new coating. It is crucial to avoid removing old paint layers, as they could have historical significance.

Where a section of timber is rotten, the best option is to eliminate the rotten material and replace it with spliced-in inserts that are shaped to match the existing profiles. The inserted wood should also be treated with a wood preservative and the joint between the timber cill and the masonry sub-cill should be sealed.

It is tempting to replace traditional windows with PVC u, especially when the installer provides an 'all-in-one' installation which includes both replacement and removal in a single day. It is essential that the person installing replacement windows has a complete knowledge of the structure and history of traditional wooden frames. This will enable them to make appropriate recommendations for energy efficiency improvements and other technical upgrades that won't harm the historic character of a building. Anyone who installs replacement windows should be registered with a Competent Persons Scheme, such as FENSA. This will ensure that the replacements are approved as a suitable solution in accordance with Building Regulations. It is certainly possible for an experienced and skilled carpenter to install PVC-U windows that are sympathetic to the style of the building originally. This is especially relevant when windows are situated within listed buildings or conservation areas.