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Maintaining Timber Windows

A well-maintained wooden window is an important part of a historic building. It reflects in different degree the materials and techniques of the time in which it was made, the design and craftsmanship.

When repairs are feasible to existing windows should be done in-situ. Repairing the worst areas of decay can be accomplished by using specialized resin-based systems.

Durability

The timber windows in many old buildings were made to last for hundreds of years. However, they need to be maintained to ensure they look good and operating properly. Maintenance tasks include sash cord upvc door repairs as well as tightening the sash pulleys and painting. There is a growing need to upgrade the timber windows to increase energy efficiency. This may include replacing old glazing units, fixing existing window rebates or installing new cills to improve air seal.

One of the main issues with traditional windows is the damage caused by the corrosion of the paintwork. This is especially true in the case of sash windows because the gaps between sashes can be extremely large. In these instances water may get through the paint film and cause rotting of the putty as well as the wood underneath. Weather conditions that are not ideal can accelerate the rotting. To avoid this, windows should be painted regularly with a suitable exterior wood paint.

Corroded areas should be repaired with resin-based products. This will ensure that the highest possible amount of the original fabric is preserved. It is essential to limit the number of holes that are made into the frame in order to allow cable access, as these can admit moisture and cause decay.

Another significant problem with older windows is the structural movement within the wall, which can cause deformation of the frame and the sash. This can result in sash no longer fitting correctly or sticking or jamming into the opening and cracked glazing. This can often be fixed by the fitting of new sash boxes that have been made from slow grown deal (pine) or oak. The cill should be made from durable hardwood such as oak to prevent movement between the old and new work.

There are now several companies that produce Boston pattern wooden sash to fit into the majority of existing openings. These sash come in various sizes and finishes that meet the requirements of modern-day homeowners. In conjunction with quadruple draught strip and better thermal insulation these new sash can make significant improvements to the energy efficiency of your home.

Aesthetics

Many old timber frames have a high aesthetic appeal because they reflect, in some form, the materials technology, the construction process, and the architectural style of the time they were made. They could have significant historical significance on their own. This is particularly true for early unglazed windows in timber-framed buildings, where the majority were series openings in structural frames that were subdivided horizontally by mullions with vertical wood or iron bars in order to keep out invaders.

Traditional timber window joinery can be a stunning element of a structure and is crucial to keep it looking good. It is essential that any decay resulting from water penetration is immediately stopped once it is discovered. This can be done by painting thoroughly, especially in areas that have already suffered damage or degradation. It is best 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 coats at each stage.

The fungus responsible for wet rot can quickly spread in old timber windows. To prevent this, take out any damaged or rotten components as promptly as you are able to. The replacement of wood that is rotting should be done with care and by using a slow-growing deal (pine) and, if possible using the same species as which is being removed in order to prevent any movement differences between the new and old timbers.

Glass became cheaper and more abundant in the late medieval era and into the 17th century. In the process, glazed openings on timber-framed houses became more complex with moulded mullions, tracery made of wood and deep cills projecting into the air. In recent years, glass was pinned into frames that were rebated with glazing sprigs instead of lead cames. This method of glazing is not only less prone to leaking but also allows for larger clearer, more transparent sheets of glass to be used in windows than would otherwise have been possible without the need for leaded lights.

Energy efficiency

Traditional timber windows offer an excellent energy performance due to their thickness, multi-layer construction and very careful attention to detailing. The large glass areas, deep projection cills and wide glazing areas minimize air infiltration. Windows can be designed to improve their energy efficiency with draught-proofing and secondary glazing. It is important to keep in mind that these measures should be taken into consideration in relation to the overall integrity and look of the original windows.

It makes sense to repair or upgrade existing windows that are older rather than replacing them, especially when the improvements in thermal efficiency can be achieved through simple fixes. Historic windows often have an historic value that shows a variety of technical development and changes in architectural taste. Many people believe that the windows will need to be replaced in the near future. However, they will last for 150,200, and even 250 years if you take care of maintenance.

It is important to recognize that decay issues with traditional timber windows can be avoidable with quick and thorough repairs. It is also essential to identify damp problems and correct them swiftly in order to avoid major damage. 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 paintwork begins to crack or become curly. However, it can cause structural damage and then further decay.

A high-quality paint will stop this moisture from entering. It is also essential to keep the paintwork spotless to avoid condensation and the growth of mould. Modern synthetic paints pose a problem because they are often water-resistant and can cause mildew growth in the window doctor cambridge frame.

The majority of older windows were made from timber that contained an extensive proportion of sapwood. The timbers will deteriorate quickly when exposed to moist weather, however they can be preserved with a thorough preservative treatment before they are put to use. It is crucial to select the right type of wood for your location and climate, as these variables will affect the durability of the joinery. Local window manufacturers create a variety of timber sash that can be customized to fit specific openings in historic buildings. They are available in the standard Boston pattern or in custom sizes that can be adapted to historic structures.

Maintenance

Regular inspections, careful redecoration, and prompt Upvc Door handle repairs near me can extend the life of timber windows. The main cause of decay is moisture leaking through deteriorated paint or putty. This can be avoided by using a high-quality wood preservative and painting the wood thoroughly.

Repairs to old sash windows as well as window frames made of casement must be done with care and with the least amount of disruption. Many traditional timber window designs can be repaired without dismantling the frame, and this approach should be used whenever it is feasible. Peeling or loose paint 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 essential to not remove old paint layers that could have historical significance.

When a section of wood is decayed the best option is to remove it and replace it with timber inserts designed to match existing profiles. The wood that is inserted should be treated with wood preservative and the connection between the cill for timber and the sub-cill for masonry should be sealed.

Replacement of windows made of traditional PVC-u may be a tempting option, especially when the installer offers a 'one stop shop' installation that handles removal and replacement in a day. It is vital that the installer of replacement windows has a complete understanding of the construction and history of traditional timber frames. This will allow them to make appropriate suggestions for energy efficiency improvements and other technical upgrades that will not harm the historical character of a building. Those providing replacement windows should be registered with a Competent Persons Scheme like FENSA. This will ensure that the replacements are deemed as a suitable solution under Building Regulations. A skilled carpenter can put in PVC-u Windows that are sympathetic to the original building's style. This is especially applicable when windows are situated within conservation areas or listed buildings.