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Maintaining Timber Windows

A well-maintained wooden window is a crucial element of a building that is historic. It illustrates in varying degrees the materials and technologies, craftsmanship and architectural taste of the time period that it was built in.

If possible, repairs should be done in-situ. Repairing the worst areas of decay is possible with the help of specialized resin-based systems.

Durability

The windows made of wood in many old structures were designed to last for hundreds of years. However, they need to be maintained to ensure they look good and operating correctly. Maintenance tasks include upvc door handle repairs near me to sash cables, retightening of pulleys for sash and painting. The demand for enhancing timber windows in order to improve energy efficiency is also growing. This may mean replacing old glass units, repairing the window rebates that are in place or putting in new cills that allow the air to seal better.

One of the main issues with traditional windows is damage caused by corrosion of the paintwork. This is especially important when it comes to sash windows as the gaps between sashes may be very large. In these situations water can enter the paint film and cause rotting to the wood or putty underneath. The rotting can be exacerbated by poor weather conditions. To prevent this from happening, windows should be painted regularly with an exterior wood paint.

Areas that have been damaged must be repaired with resin-based products. This will ensure the maximum amount of original fabric retained. It is also essential to minimise the number of holes drilled into the frame for cable entry as these can admit water and lead to decay.

The wall's structural movement can also lead to distortions in the frame as well as sash. This can lead to the sash not fitting properly jamming, sticking or sagging in the opening, and even broken glass. This is often corrected by putting in new sash frames constructed of slow-growing deal (pine) or oak. The cill needs to be constructed from a sturdy hardwood, like oak, in order to prevent any shifting between the new and older work.

To alleviate this issue There are a number of companies who manufacture Boston pattern wooden sash that can be fitted into most openings. They are available in a variety of sizes and finishes that will meet the requirements of modern-day homeowners. Combined with quadruple draught strips and better thermal insulation these new sash options can make an enormous difference to the energy efficiency of a house.

Aesthetics

Many old timber windows have a high aesthetic value as they often illustrate, in some way the materials and techniques and architectural taste of the time in which they originate. They could have significant historical value in their own right. This is especially true of windows that were unglazed in the early days of timber-framed buildings, where the majority were series of openings within structural frames that were subdivided horizontally by mullions and vertical iron or wood bars to keep out intrusions.

It is essential to preserve the appearance of traditional timber window joinery. When you spot any decay caused by water penetration it is crucial to stop it. It is best to do this through thorough painting, particularly if there is damage or deterioration. It is best to use paints designed to be used in a system (primer undercoat and finish) and follow the manufacturer's guidelines for preparation and number coats at each stage.

Wet rot is a frequent problem in old timber windows. The best way to stop it developing is to remove any damaged or rotten sections as soon as you can to stop the spread of the fungus that causes it. The replacement of rotting timber should be done with care and with a slow-growing deal (pine) and, whenever feasible using the same species as which is being removed to prevent any movement differences between the new and old timbers.

In the late the 17th and early the medieval periods, glass became less expensive and more abundant, so that the double glazed door seal repairs openings in timber-framed buildings gradually became more sophisticated with wooden tracery moulded mullions, moulded mullions, and deep protruding cills. In the past, more often, the glass was laid within rebated frames and pinned in with 'glazing sprigs' rather than into lead cames. This method of glazing is not only less prone to leaking but it also allows larger and clearer sheets of glass to be used in the windows than would have been possible without the need for lead lights.

Energy efficiency

Traditional timber windows offer excellent energy efficiency due to their thickness and multi-layer construction. They also pay careful attention to detailing. The large glass areas, the deep projecting cills and large cambridge double glazing areas reduce air infiltration. Windows can be designed to increase their energy efficiency through draughtproofing and secondary glazing. However it is crucial to keep in mind that any such measures should be viewed in the context of the overall appearance and integrity of the window in its original form.

It makes sense to fix or upgrade historic windows rather than replace them, particularly when improvement in energy efficiency can be made through simple repairs. Historic windows are often considered to be of historical value because they demonstrate a variety in technological advancement and changes in architectural style. Most people think that these windows will need to be replaced in the near future. However, most can still provide service for 150, 200 or even 250 years with proper maintenance.

It is essential to understand that the decay problems that are typical of timber windows can be prevented through regular maintenance and timely Upvc Doors repairs. In addition it is crucial to identify damp penetration problems and fix them promptly to avoid serious damage. The early deterioration of paint is a major problem as it allows moisture to penetrate the wood and cause wet rot. It is not uncommon for this issue to go unnoticed until the paintwork begins to crack or become wavier. However, it can cause structural damage and then further decay.

A quality paint will block moisture penetration. To avoid condensation and mould it is essential to keep the paintwork as clean as possible. Modern synthetic paints pose a problem since they are usually water-resistant and can cause mildew growth in the window frame.

The majority of older windows were constructed from sapwood-rich wood. These timbers are susceptible to deterioration quickly when exposed to wet weather conditions, but they can be protected with a thorough treatment of preservative before they are put to use. It is crucial to select the appropriate type of wood for the location and climate, as these factors will affect the durability of the joinery. Local window manufacturers provide 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 are in keeping with the architectural style of historic buildings.

Maintenance

The life span of windows made from timber can be extended considerably by regular inspection carefully redecoration, and timely repair. The primary reason for the decay is moisture infiltration through deteriorated putty and paint. This can be prevented by using a good wood preservative and painting the wood thoroughly.

Repairs to old sash windows and casement window frames should be done with care and with the least amount of disruption. A lot of traditional wooden window designs are repairable without removing the frame, and this approach should be followed whenever feasible. Remove 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 old paint layers which could have historical value, and where these are present, it is recommended that a paint analysis be carried out.

If a portion of wood is rotting, the best solution is to take it off and replace it with timber inserts shaped to match existing profiles. The inserted wood should also be treated with wood preservative and the connection between the cill for timber and the sub-cill for masonry should be sealed.

Replacement of traditional windows with PVC-u may be an attractive option, especially when the installer offers a "one-stop shop" installation that handles both removal and replacement within the span of a day. It is, however, essential that the person installing replacement windows has a complete understanding of the construction and history of traditional timber frames. This will enable them to make appropriate recommendations for energy efficiency improvements and other technical upgrades that do not alter the character of a historic building. Those providing replacement windows should be registered with a Competent Persons Scheme like FENSA. This will ensure that the replacement windows are approved as a suitable solution under Building Regulations. It is certainly possible for an experienced and skilled carpenter to install PVC-u windows that are sympathetic to the character of the original building. This is especially true where the windows are located in listed buildings or conservation areas.