Maintaining Timber Windows

A well-maintained wooden window is a crucial element of a building that is historic. 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 carried out in-situ. Repair systems made of resin can be used to fix the most deteriorated areas without having to remove the entire window.

Durability

Timber windows were made to last for hundreds of years. They require regular maintenance to keep them looking good. The most frequently-asked maintenance tasks include sash-cord repairs and re-tightening the sash pulleys and painting. The need to upgrade windows made of timber to increase efficiency and energy efficiency is also increasing. This could include replacing old glazing units, fixing the window rebates that are in place or installing new cills for improved air seal.

The deterioration of paintwork is a major problem with traditional windows. This is particularly important when sash windows are involved as the gaps between sashes can be extremely large. In these situations water can get into the paint film and cause decay of the putty and the wood beneath. The rotting can be exacerbated due to weather conditions that are poor. To avoid this, windows should be painted regularly with a suitable exterior wood paint.

Corroded areas should be repaired using a resin-based product. This will ensure that the highest possible amount of the original fabric is preserved. It is crucial to reduce 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 could cause deformation of the frame and the sash. This could result in the sash not fitting properly, sticking or jamming in the opening, and damaged glazing. This can often be fixed by the fitting of new sash boxes made from slow grown deal (pine) or oak. The cill must be made of a durable hardwood, such as oak, to avoid shifting between the new and older work.

There are a variety of companies that manufacture Boston pattern wooden sash that fit into the majority of existing openings. The sash is available in various sizes and finishes that meet the requirements of modern-day homeowners. These sash are combined with quadruple draft strip and improved thermal insulation can significantly improve the efficiency of a home’s energy use.

Aesthetics

Many old timber frames possess a dazzling aesthetic appeal, since they display, in a certain form, the materials technology, design, and style of the time they were built. They may have significant historical value as a set. This is particularly true of early windows that were not double glazed door repairs in timber-framed structures, which were simply a series of openings within the frame, which were divided horizontally into mullions, and vertically into iron or wood bars to deter intrusions.

It is essential to preserve the appearance of traditional timber Vintage Window repair joinery. It is vital that any decay caused by water penetration is immediately stopped once it is discovered. This can be done by applying a thorough coat of paint, particularly in areas where there has already been damage or degradation. It is advisable to use paints that are specifically designed to be used part of the system (primer as well as undercoat, finish and primer) and follow the manufacturer’s instructions regarding preparation and the number of coats needed at each stage.

The fungus that causes wet rot can quickly spread in old timber windows. To prevent this, take out any rotten or damaged parts as promptly as you are able to. The replacement of rotting timber should be carefully undertaken by using a slow-growing deal (pine) and, upvc window renovation if feasible using the same species as which is being removed to prevent any movement differences between the new and old timbers.

In the late period of the 17th century and the middle of the medieval period, glass became more affordable and abundant, and the openings for glazed glass in timber-framed buildings gradually became elegant with wooden tracery moulded mullions, moulded mullions, and deep projecting cills. The glazing was increasingly set within rebated frames and pinned in with ‘glazing sprigs’, rather than into lead cames. This method of glazing not only makes the windows less likely to leak and also allows larger sheets of glass to be used than would have been feasible without the use of leaded lights.

Energy efficiency

Traditional timber windows are energy efficient because of their thickness, multilayer construction and focus on particulars. The large glass areas, deep projection cills and wide glazing areas help to reduce air infiltration. With secondary glazing and draughtproofing the windows can be improved to improve their energy efficiency. It is important to keep in mind that these measures should be taken into consideration when it comes to the overall integrity and appearance of the original windows.

It is sensible to upvc door repair cost or upgrade existing historic windows rather than replace them, especially when the improvement in thermal efficiency can be made through simple repairs. The windows of the past often have an historic value that shows a variety of technological advancement and changes in architectural tastes. Many people believe that these windows will need to be replaced in the near future. However, they will last for 150, 200 or even 250 years with proper maintenance.

It is essential to realize that decay issues associated in traditional timber double glazed windows cambridge windows are avoidable with prompt and thorough repairs. It is also important to recognize damp issues and address them promptly to avoid major damage. The early deterioration of paint is a major issue, as it allows moisture to penetrate the wood and cause wet rot. This type of damage is typically not evident until the paintwork becomes damaged or wavy but it can cause severe structural damage and can lead to further decay.

A good quality paint will stop this moisture penetration. It is also necessary to keep the paintwork clean in order to prevent condensation and the growth of mould. Modern synthetic paints can pose a problem, as they are often formulated to be water-resistant, and this can cause the growth of mildew inside the window frame.

The majority of windows from the past were manufactured from timber containing an extensive proportion of sapwood. These timbers can deteriorate very quickly when exposed to moist weather, but can be preserved with a thorough treatment of preservative before they are used. It is important to choose the appropriate type of wood for the site and the climate, since these factors can affect the durability of the joinery. Local window manufacturers provide an array of sash timbers that can be adapted to fit historical openings. They are available in the standard Boston pattern or in custom sizes that can be adapted to historical structures.

Maintenance

Regular inspections carefully redecorated, as well as prompt repairs can extend the lifespan of windows made of timber. The main cause of decay is the penetration of moisture through deteriorated paint and putty. This can be prevented by using a quality wood preservative and thoroughly painting the wood.

It is crucial that repairs to the old sash and aluminium casement windows cambridge windows are properly executed and done without causing any disturbance. Repairs can be made to many traditional timber window designs without having to remove the frame. This is a must whenever it is possible. Loose or peeling paint must be removed with care and lightly sanded to improve the “key” of the surface and facilitate an improved adhesion of the new coating. Care should be taken to avoid stripping old paint layers that could have historical value If these are present it is recommended that a paint analysis be carried out.

If a piece of wood has rotted, the best solution is to take it off and replace it with timber inserts shaped to match the existing profiles. The inserted timber should also be treated using wood preservative and the junction between masonry sub-cills and timber cill should be sealed.

It can be tempting to replace traditional windows with PVC U, particularly if the installer offers an installation that includes both replacement and removal within a single day. However, it is essential that the person installing replacement windows has a full knowledge of the structure and history of traditional wooden frames. This will enable them to make appropriate suggestions for improvements to energy efficiency and other technical improvements that will not harm the historic character of a building. The window installers who provide replacement windows must be registered with a Competent Persons Scheme like FENSA. This will ensure that the replacements are approved under Building Regulations as a suitable alternative. It is quite possible for a skilled and experienced carpenter to install PVC-U windows that fit the the original building. This is especially applicable when windows are in listed buildings or conservation areas.