Maintaining Timber Windows

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

When repairs are feasible to existing windows should be carried out in situ. Repairing the most severe areas of decay can be accomplished using proprietary resin-based systems.

Durability

The timber windows in many historic structures were designed to last for centuries. They do require some maintenance to keep them looking great. The most frequent maintenance tasks include repairs to sash cords as well as tightening sash pulleys and painting. The demand for enhancing timber windows in order to increase efficiency and energy efficiency is also increasing. This could include replacing old glazing units, fixing existing window rebates, or installing new cills for improved air seal.

The deterioration of paintwork is a major issue with traditional windows. This is particularly important when windows made of sash are involved because the gaps between the sashes can be quite large. In these instances water can get into the paint film and cause rotting of the putty and the wood beneath. The weather can be a factor in accelerating the rotting. To avoid this windows from becoming rotten, they must be painted regularly with a suitable exterior wood paint.

In addition to repainting, areas that have corroded must be repaired using an adhesive-based repair product. This will ensure that the greatest amount of the original fabric is preserved. It is also necessary to minimise the number of holes that are drilled into the frame to allow cable entry since these could let in water and cause 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 and jamming or sticking to the opening, and damaged glazing. This can often be fixed through the installation of new sash boxes constructed from slow-growing deal (pine) or oak. The cill should be constructed of a strong hardwood such as oak, in order to prevent any differential movement between new and existing work.

To alleviate this issue There are a number of companies who make Boston pattern sash made of wood that will fit into the majority of existing openings. The sash is available in various sizes and finishes to meet the requirements of modern-day homeowners. The new sash, combined with quadruple draft strip and improved thermal insulation can make a huge difference to the efficiency of your home's energy usage.

Aesthetics

Many old wooden windows cambridge windows have an excellent aesthetic value since they usually demonstrate, in a way the materials and techniques and architectural style of the time from when they were built. They could also have a significant historical significance in their individual cases. This is particularly true of windows that were unglazed in the early days of timber-framed buildings, in which the majority were simply a series of openings in frames of structural construction, which were divided horizontally by mullions and vertical iron or wood bars in order to keep out intruders.

Traditional timber window joinery is a beautiful aspect of a building, and is essential to maintain its appearance. As soon as you notice any decay caused by the penetration of moisture, it is important to stop it. It is best to do this by thorough painting, especially where there is damage or degradation. It is recommended to use paints that are designed to be used in a system (primer undercoat and finish) and follow the manufacturer's guidelines for preparation and number of coats at each stage.

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

Glass became cheaper and more abundant in the late medieval era and into the 17th century. In the process, the glazed openings in timber-framed homes were more elaborate, with moulded mullions and traceries, made of wood and cills that protruded deep. The glazing was increasingly placed within frames with rebates and secured by 'glazing sprigs' rather than into lead cames. This method of glazing is not only less prone to leaks but it also allows larger, clearer sheets of glass to be used in windows than would otherwise be possible without the need for lead lights.

Energy efficiency

Traditional timber windows have 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 repairs areas minimize air infiltration. The windows can be made to improve their energy efficiency by draught-proofing and secondary glazing. It is important to remember that these measures should be considered in relation to the overall integrity and look of the original windows.

So, retaining existing historic windows that require repair rather than replacing them is sensible particularly when thermal enhancements can be achieved economically through simple repairs and upgrades. Historic windows are often considered to be of historical value because they show a range in technological advancements and changes to architectural style. The pressures to replace these windows are typically based on the assumption that the old windows will need replacement in the near future, but the majority of them are capable of serving for 150, 200 or even 250 years if properly maintained.

It is crucial to recognize that the decay problems associated with traditional timber windows can be prevented through regular maintenance and timely repairs. Additionally it is vital to recognize damp penetration issues and address them swiftly to avoid major damage. Early paint deterioration is a major problem as it allows moisture to penetrate the wood and cause wet rot. It is not uncommon for this type of damage to go unnoticed until the paintwork starts to crack or turn wavier. However, it can cause structural damage and then further decay.

A paint of good quality will prevent moisture penetration. To prevent mould and condensation, it is important to keep the paintwork as clean as possible. Modern synthetic paints pose a challenge because they are water-resistant, and can cause mildew growth in the window frame.

The majority of older windows were constructed from sapwood-rich timber. These timbers can deteriorate very rapidly if exposed to wet weather, but can be protected by a thorough preservative treatment before they are put to use. It is important to choose the right kind of wood for your location and the climate, since these factors can affect the longevity of the joinery. Local window repair Specialists manufacturers make a range of sash made of timber that can be customized to fit specific historic openings. They can be produced in the standard Boston pattern or in custom sizes to suit historic structures.

Maintenance

Regular inspection, careful redecoration, and prompt repairs can extend the lifespan of windows made of timber. The main cause of decay is the penetration of moisture through the deteriorated paint and putty. This can be avoided by thorough painting and using an excellent wood preservative.

It is important that emergency upvc door repairs to the old sash and casement windows are well executed and completed with minimal disruption. Many of the traditional designs for timber windows can be repaired without removing the frame, and this option should be followed whenever possible. Paint that is peeling or loose should be removed carefully and sanded lightly to improve the 'key' of the surface and facilitate an improved adhesion of the new coating. It is important to avoid removing old paint layers that may have historical significance.

When a section of wood is rotting the best way to deal with it is to take it off 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 cill for timber and the sub-cill of the masonry should be sealed.

Replacement of windows made of traditional PVC-u is an appealing option, particularly when the installer provides a "one-stop shop" installation that takes care of removal and replacement within one day. It is essential that installers of replacement windows are aware of the history and design of traditional timber frames. This will allow them to make the right suggestions for energy efficiency improvements and other technological advancements that won't alter the appearance of an historic building. The window installers who provide replacement windows must be registered with a Competent Persons Scheme like FENSA. This will ensure the replacements are approved in accordance with Building Regulations as a suitable alternative. A skilled carpenter can put in PVC-u Windows that are sympathetic to original building's character. This is especially relevant when windows are in listed buildings or conservation areas.