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Maintaining Timber Windows

A well-maintained timber window is a significant element of the historical fabric of a structure. It reflects in varying degree the technology and materials of the time period it was constructed, the craftsmanship and architectural taste.

If repairs are possible to existing windows are required, they should be made in situ. Repairing the most deteriorated areas of decay can be done with the help of specialized resin-based systems.

Durability

Timber windows were built to last for centuries. They do require some maintenance to keep them looking good. Maintenance tasks include repairs to sash cables, retightening of sash pulleys and painting. The demand for enhancing windows made of timber to improve efficiency in energy use is also growing. This can involve replacing old glazing units, repairing the window rebates that are in place or putting up new cills to allow for better air sealing.

A key problem with traditional windows is damage caused by corrosion of the paintwork. This is especially important when sash windows are concerned as the gaps between sashes may be very large. In these situations, water can penetrate paint film and cause rotting of the wood or putty underneath. The rotting may be further aggravated by weather conditions that are not ideal. To avoid this, windows should be regularly painted with a suitable exterior wood paint.

In addition to repainting, corroded areas need to be repaired with an adhesive-based repair product. This will ensure that the best possible amount of the original fabric remains. It is crucial to reduce the number of holes that are created in the frame to allow cable entry, as these can admit moisture and cause decay.

The wall's structural movement can also lead to distortions in the frame and the sash. This can result in sash not fitting correctly and jamming or sticking into the opening, and broken glass. Most often, this is corrected by fitting new sash boxes constructed from slow-growing deal (pine) or oak. The cill should be constructed of a strong hardwood like oak, in order to prevent any the movement of new and old work.

There are now several companies that make Boston pattern wooden sash to fit in with the majority of openings. They are available in a variety of sizes and finishes that suit the needs of modern homeowners. Together with quadruple draught strips and improved thermal insulation, these sashes can make a an enormous difference to the energy efficiency of your home.

Aesthetics

Many old timber windows have a great aesthetic value because they typically demonstrate, in a way, the materials and technology and architectural taste of the time from when they were built. They may also have significant historical value as a set. This is especially true of early unglazed windows in timber-framed structures, where the majority of them were series of openings within structural frames subdivided horizontally by mullions with vertical wood or iron bars in order to protect against intruders.

It is crucial to maintain the appearance of traditional timber window joinery. As soon as you see any signs of decay caused by water penetration, it is important to stop it. This is best done by painting thoroughly, especially in areas that have already suffered damage or degradation. It is recommended to use paints that are designed to be used in a system (primer undercoat and finish), and to adhere to the manufacturer's recommendations for preparation and number coats at each stage.

The fungus responsible for wet rot is able to spread quickly in old windows made of timber. To stop this from happening, take out any damaged or rotten parts as soon as you can. The replacement of rotting wood must be done with care by using a slow-growing deal (pine) and, whenever feasible using the same species as that which is being removed to avoid shifting between the new section and the existing timbers.

In the late medieval and 17th century periods glass became less expensive and more abundant, and the openings for glazed glass in timber-framed buildings gradually became elegant with wooden tracery moulded mullions, moulded mullions, and deep protruding cills. In the past, more often, the glass was placed within frames with rebates and then pinned with 'glazing sprigs', cambridge door and window rather than into lead cames. This method of glazing not only makes windows less likely to leak and also allows wider sheets of clearer glass to be utilized than would have been feasible without the use of leaded lights.

Energy efficiency

Traditional timber windows are energy efficient due to their thickness and multilayer construction, as well as their care for detail. The large glass areas, the deep projecting cills, and the large double glazing in cambridge areas help to reduce air infiltration. With secondary glazing and draughtproofing, the windows can be improved to increase their energy efficiency. It is important to remember that these measures must be taken into consideration when it comes to the overall appearance and integrity of the original windows.

It makes sense to repair or upgrade existing windows that are older rather than replacing them, particularly when improvements in energy efficiency can be made through simple repairs. Older windows typically have an historic value that shows a variety of technical development and changes in architectural tastes. Most people think that these windows will have to be replaced in the near future. However, most will last for 150,200, and even 250 years with proper maintenance.

It is essential to understand that the decay problems associated with traditional windows made of timber can be avoided by regular maintenance and swift repairs. Additionally, it is essential to recognize damp penetration issues and to remedy them quickly to avoid major damage. The early deterioration of paint could be a problem as it allows moisture to penetrate into the wood, causing wet rot. It is not uncommon for this type of damage to go undetected until the paintwork starts to crack or turn curly. However, it can cause structural damage cambridge door and window then further decay.

A good quality paint will prevent this moisture from entering. To prevent condensation and mould it is essential to keep the paintwork as clean as it can be. Modern synthetic paints can pose a problem since they are typically designed to be water-resistant and this may result in the formation of mildew inside the window frame.

The majority of windows cambridge from the past were constructed from timber with an extensive proportion of sapwood. The timbers will deteriorate 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 right type of wood for your location and cambridge door and window the climate, since these factors can affect the longevity of the joinery. Local window manufacturers make a range of sash made of timber that can be customized to fit specific openings in historic buildings. They can be made in the standard Boston pattern or in custom sizes that can be adapted to the architectural style of historic structures.

Maintenance

The lifespan of windows made of timber can be extended by regular inspection, careful redecoration and prompt repair. The primary reason for decay is the infiltration of moisture through deteriorated paint and putty. This can be avoided by thorough painting and the use of an excellent wood preservative.

It is crucial that repairs to old sash and casement windows are well executed, and carried out with minimal disruption. Many of the traditional designs for timber windows can be repaired without removing the frame, and this method should be taken whenever possible. Peeling or loose paint should be removed carefully and sanded lightly to improve the key of the surface and allow for an easier adhesion of the new coating. It is crucial to not remove old paint layers that may have historical significance.

If a piece of wood is decayed, the best solution is to remove it and replace it with timber inserts designed to match existing profiles. The wood that is inserted should be treated with a wood preserver and the joint between the timber cill and the masonry sub-cill should be sealed.

Replacement of windows made of traditional PVC-u may be a tempting option, especially when the installer provides an "all-in-one" installation that takes care of both removal and replacement within one day. It is, however, vital that the installer of windows replacement has a thorough knowledge of the construction Cambridge Door and window history of traditional timber frames. This will allow them to make appropriate suggestions for energy efficiency improvements and other technological advancements that won't affect the appearance of a historic building. Window replacements should be registered with a Competent Persons Scheme such as FENSA. This will ensure the replacements are deemed acceptable 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 particularly true when the windows are situated within conservation areas or listed buildings.