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Maintaining Timber Windows

A well-maintained and maintained timber window is a significant element of the historic structure of a building. It reflects in different levels, the technology and materials of the time period it was constructed, as well as the craftsmanship and architectural taste.

When repairs are feasible to existing windows are required, they should be done in-situ. Repairing the most severe areas of decay can be accomplished with the help of specialized resin-based systems.

Durability

Timber windows were made to last hundreds of years. But, they have to be maintained to ensure they look good and operating properly. The most frequently-asked maintenance tasks include upvc door handle repairs near me to sash cords as well as tightening sash pulleys and painting. The demand for upgrading timber windows to improve efficiency in energy use is also growing. This may mean replacing old glass units, repairing the window replacement cambridge rebates that are in place or putting in new cills that allow for better air sealing.

The deterioration of paintwork is a major issue with traditional windows. This is particularly true when windows with sash are involved since the gaps between the sashes can be extremely large. In these situations water can enter the paint film and cause rotting to the wood or putty beneath. The rotting may be further aggravated by weather conditions that are not ideal. To stop this from happening windows, they should be painted regularly using a suitable exterior wood paint.

In addition to repainting, areas that have corroded need to be repaired with an adhesive-based repair product. This will ensure that the greatest amount of the original fabric is preserved. It is important to minimize the number of holes made into the frame in order to allow cable access, since they can let in moisture and cause decay.

Another issue with older windows is the structural movement within the wall that can cause deformation of the frame and sash. This can result in the sash fitting incorrectly and jamming or sticking into the opening, and broken glass. Often this can be corrected by fitting new sash boxes that have been made from slow grown deal (pine) or oak. The cill needs to be constructed from a sturdy hardwood, like oak, in order to prevent any the movement of new and older work.

To alleviate this issue to reduce the risk of this happening, there are a number of companies who produce Boston pattern sash made of wood that will fit most existing openings. These sash come in various sizes and finishes to fit the needs of modern homeowners. Together with quadruple draught strips and improved thermal insulation, these new sash options can make significant improvements to the energy efficiency of a house.

Aesthetics

A lot of old timber frames have a great aesthetic appeal because they display, in a certain form, the quality of the wood, technology, and architectural aesthetics of the time they were made. They could also have significant historical value in their in their own right. This is especially true for early unglazed window openings in timber-framed buildings, which were merely a series of openings in the structural frame sub-divided horizontally into mullions and vertical wood or iron bars to keep out invaders.

Traditional Ranch window repair joinery made from timber can be a highly decorative element of a structure and is crucial to maintain its appearance. It is essential that any decay that results from water penetration is removed as soon as it is recognised. It is recommended to do this through thorough painting, especially where there has been damage or deterioration. It is recommended to use paints specifically designed to be used as part of a system (primer undercoat, finish) and follow the manufacturer's guidelines in terms of preparation and the number of coats required at each stage.

The fungus that causes wet rot can spread quickly in old windows made of wood. To prevent this from happening, take out any rotten or damaged parts as quickly as you can. Replace rotting wood with slow-growing deal (pine) and, should it be possible, the same type of wood as the one being removed, to avoid any differential movement.

Glass became more affordable and abundant in the late medieval period and into the 17th century. As a result, glazed openings on timber-framed houses became more complex with moulded mullions, wooden tracery and cills that protruded deep. The glazing was increasingly set within rebated frames and then pinned by 'glazing sprigs' rather than into lead cames. This method of glazing not only makes windows less likely to leak, but also allows for wider sheets of clearer glass to be used than would have been feasible without the use of leaded lights.

Energy efficiency

Traditional timber windows are energy efficient because of their thickness and multilayer construction as well as care for detail. The large glass surfaces, the deep projecting cills, and the large glazing areas minimize air infiltration. With secondary glazing and draught proofing, windows can be upgraded to improve their energy efficiency. However it is crucial to keep in mind that these measures must be considered in relation to the overall integrity and appearance of the window in its original form.

As a result, retaining the existing windows from the past that are in need of repair rather than replacing them makes sense particularly when thermal improvements can be achieved cost-effectively through simple repairs and improvements. Historic windows are often considered to be of historical value because they reflect a variety of technological advancement and changes in architectural taste. The pressure to replace these windows are usually based on the assumption that the 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 they are properly maintained.

It is important to recognise that the decay issues that are associated with traditional timber windows can be prevented by thorough maintenance and timely repairs. It is also important to spot damp issues and address them promptly to avoid major damage. The early deterioration of paint is a concern because it allows moisture to get into the wood, leading to wet rot. The damage is usually not apparent until the paintwork becomes wavy or cracked, but can cause significant structural damage and lead to further decay.

A high-quality paint will prevent this moisture penetration. It is also important to keep the paintwork in good condition to avoid condensation and the growth of mould. Modern synthetic paints can be problematic because they are usually formulated to be water-resistant, and this may cause the growth of mildew in the window frame.

The majority of windows from the past were manufactured from timber containing an extensive proportion of sapwood. These timbers deteriorate quickly if exposed to rain, but they can be protected by a thorough preservation process prior to use. It is also essential to ensure that the type of timber used is well-suited to the climate and site conditions, as these factors affect the durability of the joinery. Local window manufacturers have an array of timber sash which can be customized to fit historic openings. They are available in the standard Boston pattern or in custom sizes that can be adapted to the architectural style of historic buildings.

Maintenance

Regular inspection as well as careful redecoration and prompt repairs can extend the lifespan of windows made of timber. The major cause of decay is moisture penetration through the deteriorated paint and putty. This can be avoided by using a good wood preservative and thoroughly painting the wood.

It is important that repairs to old sash or casement windows are properly executed, and carried out without causing any disturbance. It is possible to repair many traditional timber window designs without removing the frame. This should be done whenever possible. Remove loose or peeling paint and lightly sand the area to improve the 'key" of the surface. This will allow the new coating to stick better. Be careful to avoid stripping old paint layers which could have historical value If these are present it is recommended that a study of the paint be conducted.

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

Replacement of windows cambridge made of traditional PVC-u can be an attractive option, especially when the installer offers a "one-stop shop" installation that takes care of removal and replacement in a day. It is important that the installers of replacement windows have a deep understanding of the history and construction of traditional timber frames. This will enable them to make the right suggestions for improvements to energy efficiency and other technical upgrades that will not harm the historic character of a building. Those providing replacement windows should be registered with a Competent Persons Scheme such as FENSA. This will ensure that replacement windows are deemed to be approved under Building Regulations as a suitable alternative. A skilled carpenter can install PVC-u Windows that are sympathetic to original building's character. This is especially true where the windows are located in listed buildings and conservation areas.