The Best Cambridge Window Methods To Transform Your Life

Maintaining Timber Windows

A well-maintained wooden window is a crucial part of a historic building. It reflects in different degrees, the technology and materials of the time in which it was constructed, as well as the architectural style and craftsmanship.

When possible, repairs should be made in-situ. Repairing the most severe areas of decay can be done by using specialized resin-based systems.

Durability

The windows made of wood in many historical buildings were built to last for centuries. However, they do need to be maintained to keep them looking good and functioning properly. The most frequently-asked maintenance tasks include repairs to sash cords and re-tightening the sash pulleys and painting. There is also a rising demand to upgrade timber windows to improve energy efficiency. This can involve replacing old glazing units, fixing existing window rebates or putting in new cills to allow for better air sealing.

One of the major issues with traditional windows is damage caused by corrosion of the paintwork. This is particularly true when windows made of sash are involved because the gaps between the sashes can be extremely large. In these cases water can get into paint film and cause rotting to the putty or wood beneath. The weather can be a factor in accelerating the rotting. To prevent this from happening, windows must be regularly painted with an exterior wood paint.

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

Another significant problem with older windows is structural movement in the wall which can cause deformation of the frame and the sash. This can result in the sash fitting incorrectly and jamming or sticking into the opening, and broken glass. Often this can be corrected by fitting new sash boxes constructed from slow-growing deal (pine) or oak. The cill should be constructed from durable hardwood such as oak to prevent movement between the existing and new work.

There are now several companies that produce Boston pattern wooden sash to fit most existing openings. These sash are available in a range of sizes and finishes to meet the needs of today's homeowner. These sash are combined with quadruple draft strips and improved thermal insulation can make a huge difference to the energy-efficiency of a home.

Aesthetics

A lot of old timber frames have a great aesthetic appeal, since they show, in some shape, the materials, technology, and architectural aesthetics of the time they were built. They may also have significant historical value on their own. This is particularly true of early windows that were not glazed in timber-framed buildings, in which the majority were series openings in frames of structural construction, which were divided horizontally by mullions, and vertically by wood or iron bars to keep out invaders.

Traditional timber window joinery can be a highly decorative element of a structure and it is important to keep its appearance. As soon as you see any signs of decay due to the penetration of moisture, it is important to stop it. This can be done by a thorough painting process, especially in areas that have already suffered damage or degradation. It is recommended to use paints designed to be used as part of the system (primer undercoat, finish) and to follow the manufacturer's recommendations in relation to preparation and the amount of coats required at each stage.

Wet rot is a frequent problem for old timber windows and the best method to stop it from becoming a problem is to take out any damaged or rotten parts as soon as possible to stop the spread of the fungus that causes it. The replacement of wood that is rotting must be done with care with a slow-growing deal (pine) and, if possible using the same species as that which is being removed in order to prevent any movement differences between the new section and existing timbers.

Glass became cheaper and more abundant in the late medieval era and into the 17th century. As a result, glazed openings on timber-framed houses became more complicated with moulded mullions, wooden tracery and deep cills projecting into the air. Increasingly, the glazing was placed within frames with rebates and secured with 'glazing sprigs' rather than being inserted into lead cames. This method of glazing not only makes the windows less likely to leak, but also allows for larger sheets of glass to be employed than would be feasible without the use of lead lights.

Energy efficiency

Traditional timber windows are energy efficient because of their thickness and multilayer construction as well as attention to particulars. They also have large glass areas as well as deep projecting cills that reduce air infiltration. The windows can be made to increase their energy efficiency with draught-proofing and secondary glazing. It is essential to remember that these measures should be considered when it comes to the overall integrity and look of the original windows.

Therefore, keeping the existing windows from the past that require repair rather than replacing them is sensible particularly when thermal enhancements can be made inexpensively with simple repairs and improvements. The windows that are historic have a lot of historical value, as they show a range in technological advancement and changes in architectural style. The pressures to replace such windows are typically 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 properly maintained.

It is essential to understand that the decay issues that are typical of windows made of timber can be avoided by thorough maintenance and timely repairs. Additionally, it is essential to recognize damp penetration issues and address them swiftly 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 damage is often not apparent until the paintwork is cracking or wavy but it can cause severe structural damage and lead to further decay.

A good paint will block moisture penetration. To prevent condensation and mould, it is important to keep the paintwork as clean as possible. Modern synthetic paints can pose a problem since they are typically designed to be water-resistant and this may lead to the formation of mildew within the window frame.

The majority of older windows were constructed from sapwood-rich timber. The timbers will deteriorate quickly when exposed to wet weather, however they can be protected with a thorough treatment of preservative before they are put to use. It is important to choose the right type of wood for your location and climate, as these factors can affect the durability of the joinery. Local window manufacturers make various types of timber sash that can be tailored to fit specific openings in historic buildings. They can be made in the standard Boston pattern or in custom sizes to fit historical structures.

Maintenance

The life of timber windows can be extended by regular inspection carefully redecoration, and timely repair. The primary reason for the decay is moisture infiltration through deteriorated putty and paint. This can be prevented by using a high-quality wood preservative and painting the wood thoroughly.

It is important that repairs to the old sash and casement windows are properly executed and completed with the minimum disturbance. Many traditional timber window designs can be repaired without removing the frame, and this approach should be followed whenever possible. Loose or peeling paint should be removed with care and lightly sanded to improve the key of the surface and allow for an easier adhesion of the new coating. Be careful to avoid stripping old paint layers which might have historical significance If these are present it is recommended that a paint analysis be conducted.

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

Replacement of traditional windows with PVC-u may be an attractive option, especially when the installer offers a "one-stop shop" installation that takes care of removal and replacement within a day. It is crucial that the person who installs windows replacement has a thorough knowledge of the structure and history of traditional wooden frames. This will enable them to make the right recommendations for energy-efficiency improvements and other technological advancements that won't alter the appearance of a historic building. Those providing replacement windows should be registered with a Competent Persons Scheme like FENSA. This will ensure that the replacements are deemed to be approved under Building Regulations as a suitable option. It is certainly possible for a skilled and experienced carpenter to install PVC-U windows that match the character of the building originally. This is particularly true when the windows are situated within listed buildings or conservation areas.