Maintaining Timber Windows

A well-maintained wooden window is an important part of a historic building. It reflects in different degrees, the materials and technologies of the time it was constructed, the craftsmanship and architectural taste.

If it is possible, repairs must be made on-site. Proprietary resin-based repair systems can be used to fix the most damaged areas of decay without removing the whole window.

Durability

Timber windows were made to last hundreds of years. However, they need to be maintained to keep them looking great and working properly. Maintenance tasks include repairs to sash cords, retightening of pulleys on sash, and painting. The demand for upgrading windows made of timber to increase efficiency in energy use is also growing. This could include replacing old glazing units, repairing the window rebates that are in place or installing new cills for improved air seal.

The deterioration of paintwork is a major issue with traditional windows. This is especially true in the case of sash windows because the gaps between sashes may be extremely large. In these instances water may get through the paint film and cause decay of the putty and the wood underneath. Weather conditions that are not ideal can accelerate the decay. 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 a resin-based repair product. This will ensure that the maximum amount of original fabric retained. It is also necessary to minimise the number of holes you drill into the frame to allow cable entry since these could allow water in and cause decay.

Another issue with older windows is structural movement in the wall, which can cause deformation of the frame and the sash. This could result in the sash window repair cambridge not fitting properly, jamming or sticking in the opening, and even broken glass repair cambridge. Most often, this is corrected by the fitting of new sash boxes constructed from slow-growing deal (pine) or oak. The cill should be constructed from a sturdy hardwood such as oak to avoid any movement between the existing and new work.

There are several companies that make Boston pattern wooden sash to fit in with the majority of openings. These sash are available in a variety of sizes and finishes to meet the requirements of the modern homeowner. These new sash, when combined with quadruple draft strip and a better thermal insulation, can make a huge difference to the energy-efficiency of a home.

Aesthetics

Many old timber windows have a great aesthetic value as they often demonstrate, in a way, the materials and technology and architectural taste of the time in which they date. They may also have a significant historical significance in their individual cases. This is especially true of windows that were unglazed in the early days of timber-framed structures, where the majority were series of openings in structural frames that were subdivided horizontally by mullions with vertical iron or wood bars in order to keep out invaders.

Traditional window joinery made of timber can be a highly decorative aspect of a building, and is crucial to keep its appearance. It is crucial that any decay resulting from moisture penetration should be immediately stopped once it is recognised. It is recommended to do this with thorough painting, especially where there has been damage or degradation. It is best to use paints that are designed to be used in a system (primer undercoat and finish) and adhere to the manufacturer's recommendations for preparation and number coats at each stage.

The fungus that causes wet rot can spread quickly in old windows made of timber. To prevent this from happening, take out any damaged or rotten components as quickly as you can. The replacement of wood that is rotting should be done with care and using slow grown deal (pine) and, whenever possible using the same species as which is being removed to prevent shifting between the new section and the existing timbers.

In the late the 17th and early the medieval periods, glass became less expensive and more plentiful so that glazed openings in timber-framed structures gradually became more elegant with wooden tracery moulded mullions, moulded mullions, and deep protruding cills. The glazing was increasingly placed within frames with rebates and secured with 'glazing sprigs', rather than being inserted into lead cames. This method of glazing is not only less prone to leaking but it can allow for more expansive, clearer sheets of glass to be used in the windows than would otherwise have been possible without the need for leaded lights.

Energy efficiency

Traditional timber windows are energy efficient due to their thickness and multilayer construction as well as focus on the smallest of details. The large glass surfaces, the deep projecting cills and large glazing areas minimize air infiltration. The windows can be made to improve their energy efficiency with draught-proofing and secondary glazing. However it is essential to keep in mind that any such measures should be evaluated in terms of the overall integrity and appearance of the original window.

It is logical to fix or upgrade historic windows rather than replace them, particularly when improvement in thermal efficiency can be made by simple repairs. Historic windows often have historical significance that demonstrates a range of technical development and changes in architectural tastes. The pressures to replace such windows are usually based on the assumption that windows that are old will need to be replaced in the near future, but they are in a position to last for 150, 200 and even 250 years if they are properly maintained.

It is essential to realize that decay issues associated in traditional timber cambridge windows and doors are avoidable with quick and thorough upvc doors repairs. Additionally it is vital to identify damp penetration problems and to remedy them quickly to prevent serious damage. The early deterioration of paint is a major issue, as it allows moisture to penetrate the wood and cause wet rot. It is not uncommon for this damage to go unnoticed until the paintwork begins to crack or becomes wavier. However, it can cause structural damage and lead to further decay.

A quality paint will prevent moisture penetration. To prevent condensation and mould it is crucial to keep the paintwork as clean as you can. Modern synthetic paints are problematic because they are often water-resistant, and can cause mildew to grow in the window frame.

The majority of older windows were constructed from sapwood-rich wood. 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 also important to ensure that the type of timber used is well-suited to the climate and site conditions, as these elements will influence the durability of the joinery. Local window manufacturers have a wide range of timber sash which can be customized to fit historic openings. They can be built to the standard Boston pattern dimensions, or to custom dimensions that are compatible with the architectural style of historic buildings.

Maintenance

Regular inspections carefully redecorated, as well as quick repairs can prolong the lifespan of windows made of timber. The most common reason for decay is the infiltration of moisture through deteriorated paint and putty. This can be avoided by using a quality wood preservative and thoroughly painting the wood.

upvc repairs to sash windows that are old and window frames made of Aluminium Casement Windows Cambridge must be done with care and minimal disruption. It is possible to fix several traditional designs of timber windows without taking the frame off. This should be done as often as is feasible. Remove any peeling or loose paint and then lightly sand the surface to improve the 'key" of the surface. This will allow the new coating to adhere better. Care should be taken to avoid stripping old paint layers that might have historical significance If these are present it is recommended that a paint analysis be carried out.

If a piece of timber is rotten, the best way to proceed is to take out the rotten material and replace it with spliced-in timber inserts that are shaped to match existing profiles. The inserted wood should also be treated with a wood preserver, and the junction between the timber cill and the masonry sub-cill should be sealed.

Replacement of windows made of traditional PVC-u can be a tempting option, especially when the installer provides a 'one stop shop' installation that takes care of removal and replacement in one day. It is important that the installers of replacement windows have a thorough understanding of the history and design of traditional timber frames. This will enable them to make the appropriate suggestions for energy efficiency improvements and other technical upgrades that won't harm the historic character of a building. The window installers who provide replacement windows must be registered with a Competent Persons Scheme such as FENSA. This will ensure that the replacement windows are approved as a suitable option under Building Regulations. A skilled carpenter can put in PVC-u Windows that are sympathetic to original building's character. This is especially true when the windows are situated within listed buildings or conservation areas.