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Maintaining Timber Windows

A well-maintained timber window is a crucial element of the historical fabric of a building. It demonstrates in various degrees the different materials and technologies design, craftsmanship and aesthetics of the time period that it was built in.

If possible, emergency upvc door repairs should be made on-site. Repair systems made of resin can be used to fix the most damaged areas of decay without having to remove the entire window.

Durability

Timber windows were made to last for hundreds of years. They do require some maintenance to keep them looking good. Maintenance tasks include sash cord repairs as well as tightening the sash pulleys and painting. There is a growing need to upgrade timber windows to improve energy efficiency. This could 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 damage caused by the corrosion of the paintwork. This is especially true when sash windows are concerned, as the gaps between sashes can often be extremely large. In these instances water can get into the paint film and cause rotting of the putty as well as the wood beneath. The weather can be a factor in accelerating the decay. To avoid this windows, they should be painted regularly using a suitable exterior wood paint.

Corroded areas should be repaired with a resin-based product. This will ensure that the best possible amount of the original fabric is retained. It is also important to minimise the number of holes drilled into the frame for cable entry since these could let in water and cause decay.

Another significant problem with older windows is the structural movement within the wall that can lead to deformation of the frame and sash. This could result in the sash not fitting properly or sticking or jamming into the opening and broken glazing. This is often corrected by putting in new sash frames made of slow-growing deal (pine) or oak. The cill must be made of a durable hardwood, like oak, in order to prevent any shifting between the new and older work.

There are now several companies that manufacture Boston pattern wooden sash that fit in with the majority of openings. These sash are available in a range of sizes and finishes that meet the needs of the modern homeowner. These new sash, when coupled with quadruple draft strips and a better thermal insulation, can significantly improve the efficiency of your home's energy usage.

Aesthetics

Many old wooden windows have an excellent aesthetic value since they usually show, in a particular way the materials and techniques and architectural taste of the time in which they originate. They may have significant historical significance in their own right. This is particularly true of windows that were unglazed in the early days of timber-framed buildings, where the majority were series openings in structural frames that were subdivided horizontally by mullions with vertical wood or iron bars to protect against intrusions.

Traditional timber window joinery can be a highly decorative aspect of a building, and is essential to maintain its appearance. When you spot any signs of decay caused by moisture penetration it is crucial to stop it. This is best done by applying a thorough coat of paint, particularly in areas in which there is already damage or deterioration. It is recommended to use paints that are designed to be used as part of a system (primer undercoat, finish) and follow the manufacturer's guidelines in relation to preparation and the amount of coats needed at each stage.

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

Glass became more affordable and abundant in the late medieval era and into the 17th century. This led to the glazed openings in timber-framed homes were more elaborate, with moulded mullions, wooden sliding doors cambridge tracery and cills that protruded deep. In recent times, glass was pinned into frames that were rebated using glazing sprigs, not lead cames. This method of glazing not only makes the windows less likely to leak and break, but also allows larger sheets of glass to be employed than would be possible otherwise without the use of led lights.

Energy efficiency

Traditional timber windows are energy efficient because of their thickness and multilayer construction, as well as their care for detail. The large glass surfaces, the deep projecting cills and large glazing areas 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 these measures should be viewed in the context of the overall integrity and appearance of the window in its original form.

So, retaining existing historic windows that are in need of upvc door repair cost instead of replacing them is sensible especially when their thermal enhancements can be made cost-effectively through simple repairs and improvements. Older windows typically have historical significance that shows a variety of technological advances and changes in architectural tastes. Many people believe that the windows will need to be replaced in the near future. However, they can still provide service for 150, 200 or even 250 years with proper maintenance.

It is essential to understand that the decay issues associated with traditional windows made of timber can be avoided by regular maintenance and swift repairs. It is also essential to recognize damp issues and fix them quickly so that you can avoid serious damage. Paint deterioration that occurs early could be a problem as it allows moisture to get into the wood, which can cause wet rot. This type of damage is typically not apparent until the paintwork becomes wavy or cracked but it can cause severe structural damage, and could lead to further decay.

A good quality paint will stop this moisture penetration. It is also important to keep the paintwork spotless to avoid condensation and the growth of mould. Modern synthetic paints are problematic because they are water-resistant and can cause mildew to develop within the window frame.

The majority of windows from the past were made from timber that contained the majority of sapwood. These timbers can deteriorate very rapidly if exposed to wet weather, however they can be preserved with a thorough treatment of preservative before they are used. It is essential to select the right type of wood for the site and climate, as these factors will affect the durability of the joinery. Local window manufacturers offer a wide range of sash made from timber that can be made to fit the historic openings. They can be built according to the standard Boston pattern dimensions or to specific sizes that fit with historic buildings.

Maintenance

Regular inspection carefully redecorated, as well as quick repairs can prolong the life of timber windows. The primary cause of decay is moisture intrusion through deteriorated putty and paint. This can be avoided with careful painting and the use of a good quality wood preservative.

Repairs to old sash windows and frameless casement windows should be done with care and with the least amount of disruption. Many of the traditional designs for timber windows are repairable without removing the frame, and this approach should be taken whenever possible. Remove any peeling or loose paint and lightly sand the area to improve the 'key" of the surface. This will enable the new coating to adhere better. Be careful to avoid stripping paint layers that could have historical value, and where these are present it is recommended that a paint analysis be carried out.

If a piece of wood is decayed the best option is to take it off and replace it with timber inserts that are shaped to match existing profiles. The timber inserts should be treated with wood preservative, and the joint between masonry sub-cill and timber cill should be sealed.

It can be tempting to replace traditional windows with PVC u, particularly if the installer offers an all-in-one installation that includes both removal and replacement in a single day. It is essential that installers of replacement windows have a deep understanding of the history and design of traditional timber frames. This will enable them to make appropriate suggestions for improvements to energy efficiency and other technological upgrades that will not harm the character of a historic building. The window installers who provide replacement windows must be registered with a Competent Persons Scheme such as FENSA. This will ensure that replacement windows are deemed to be approved by the Building Regulations as a suitable option. It is, of course, possible for an experienced and skilled carpenter to install PVC-U windows that match the character of the original building. This is especially true where the windows are located in listed buildings or conservation areas.