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Maintaining Timber Windows

A well-maintained window made of timber is an important element of the historic structure of a building. It reflects, in various degree the materials and technologies of the time period it was constructed, the craftsmanship and architectural taste.

Whenever possible repairs to existing windows should be carried out in situ. 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 centuries. They require regular maintenance to ensure they look good. The most common maintenance tasks include repairs to sash cords and re-tightening the sash pulleys and painting. There is also a growing demand to upgrade the timber windows to increase the efficiency of energy. This may mean replacing old glazing units, fixing the window rebates that are in place or putting up new cills for improved air sealing.

The deterioration of paintwork is a major issue with traditional windows. This is particularly true when windows made of sash are involved because the gaps between the sashes can be very large. In these cases, water can penetrate paint film and cause rotting of the wood or putty underneath. The rotting may be further aggravated due to weather conditions that are poor. To stop this from happening, windows should be regularly painted with an exterior wood paint.

In addition to repainting, areas that have corroded should be repaired with an adhesive-based repair product. This will ensure the maximum amount of original fabric is retained. It is also essential to limit the number of holes that are drilled into the frame to allow cable entry as these can admit water and lead to decay.

The wall's structural movement can also lead to distortions in the frame and the sash. This could result in sash no longer fitting correctly or sticking or jamming into the opening and broken glazing. Most often, this is corrected by fitting new sash boxes that have been made from slow grown deal (pine) or oak. The cill must be constructed from a sturdy hardwood such as oak to avoid differential movement between the old and new work.

To help reduce this problem to reduce the risk of this happening, there are several companies that manufacture Boston pattern wooden sash that will fit into the majority of existing openings. They are available in various sizes and finishes that meet the requirements of modern homeowners. These new sash, when combined with quadruple draft strip and improved thermal insulation can make a huge difference to the energy-efficiency of a home.

Aesthetics

A lot of old timber frames have a great aesthetic appeal, since they reflect, in some form, the materials technology, design, and aesthetics of the time they were constructed. They could have significant historical significance in their own right. This is particularly true of early windows that were not glazed in timber-framed structures, where the great majority were merely a series of openings in the structural frame sub-divided horizontally into mullions and vertical wood or iron bars to keep out intruders.

Traditional window joinery made from timber can be a stunning feature of a building and is crucial to maintain its appearance. It is crucial that any decay resulting from the penetration of moisture should be removed as soon as it is recognised. This can be done by painting thoroughly, especially in areas in which there is already damage or degradation. It is recommended to use paints that are designed to be used in a set (primer undercoat and finish) and to adhere to the manufacturer's recommendations for preparation and number coats at each stage.

Wet rot is a frequent problem in old timber windows. The best way to stop it becoming a problem is to take out any damaged or rotten parts as soon as possible to stop the spread of the fungus responsible for it. Replace the wood that is rotting with slow-growing deal (pine), and should it be possible, the same type of wood that is being removed, to avoid differential movement.

Glass became more affordable and abundant in the late medieval period and into the 17th century. This led to the openings for glazed windows on timber-framed houses became more complex with moulded mullions, wooden windows cambridge tracery and deep projecting cills. In recent years, 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 also allows more clear glass sheets to be employed than would be possible otherwise without the use of lead lights.

Energy efficiency

Traditional timber windows provide a good energy performance due to their thickness and multi-layer construction. They also pay careful attention to detailing. The large glass areas, deep projecting cills and large double glazing near me areas help to reduce air infiltration. With secondary glazing and draught proofing, windows can be made more efficient to increase their energy efficiency. However it is essential to keep in mind that any such measures should be evaluated in the context of the overall quality and appearance of the original window Supplier Cambridge.

As a result, retaining existing historic windows that require repair rather than replacing them is sensible, particularly when their thermal improvements can be achieved economically through simple repairs and improvements. Historic windows are often considered to be of historical value because they reflect a variety of technical development and changes to architectural style. The pressure to replace these windows are generally based on the assumption that windows that are old will need to be replaced in the near future, however they are capable of providing service for 150, 200 or even 250 years if they are properly maintained.

It is crucial to understand that decay issues with traditional timber windows are avoidable with prompt and thorough repairs. Additionally it is crucial to identify damp penetration problems and fix them promptly to avoid serious damage. Early paint deterioration is a concern because it allows moisture to penetrate into the wood, leading to wet rot. This type of damage is typically not noticed until the paintwork is cracking or wavy however, it can cause serious structural damage, and could lead to further decay.

A good quality paint will stop this moisture from entering. It is also necessary to keep the paintwork spotless to avoid condensation and the growth of mould. Modern synthetic paints pose a challenge since they are usually water-resistant and can cause mildew to develop in the window installation cambridge frame.

Most older windows were made from sapwood-rich timber. These timbers can deteriorate very quickly when exposed to moist weather, however they can be preserved with an extensive preservative treatment prior to when they are used. It is also important to ensure that the type of timber used is well-suited to the site and climate conditions, as these elements will influence the durability of the joinery. Local window repair specialists manufacturers provide various types of sash timbers that can be made to fit the historic openings. They can be built according to the standard Boston pattern dimensions or to custom dimensions that are compatible with historic buildings.

Maintenance

The life span of windows made from timber can be extended through regular inspections as well as a careful redecoration and timely repair. The primary cause of wood decay is the penetration of moisture through the deteriorated paint and putty. This can be prevented by thorough painting and using high-quality wood preservative.

It is essential that repairs to old sash or casement windows are well executed and completed without causing any disturbance. It is possible to repair several traditional designs of timber windows without having to remove the frame. This should be done whenever possible. Loose or peeling paint should be removed with care and sanded lightly to improve the "key" of the surface and allow for an easier adhesion of the new coating. It is important to avoid removing old paint layers, which may have historical value.

When a piece of wood has become rotten the best course of action 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 wood preservative, and the junction between the cill for timber and the masonry sub-cill should be sealed.

It can be tempting to replace traditional windows with PVC u, especially when the installer offers an installation that includes removal and replacement within a single day. It is vital that the installer of replacement windows has a complete understanding of the construction and history of traditional wooden frames. This will enable them to make appropriate recommendations for energy efficiency improvements and other technological upgrades that will not harm the historic character of a building. The window installation cambridge installers who provide replacement windows must be registered with a Competent Persons Scheme like FENSA. This will ensure the replacements are deemed acceptable by the Building Regulations as a suitable option. A skilled carpenter can install PVC-u Windows that are sympathetic to the original building's style. This is especially true where windows are installed in listed buildings and conservation areas.