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Maintaining Timber Windows

A well-maintained window repair cambridge made of timber is a significant part of the historic fabric of a building. It reflects in varying degree the materials and techniques of the time in which it was constructed, as well as the architectural style and craftsmanship.

If it is possible, repairs must be made in-situ. Repairing the most severe areas of decay can be done with the help of specialized resin-based systems.

Durability

Timber windows were designed to last for hundreds of years. They require regular maintenance to keep them looking great. The most frequently-asked maintenance tasks include sash-cord repairs and re-tightening the sash pulleys and painting. The demand for enhancing timber windows to improve efficiency in energy use is also growing. This can involve replacing old glazing units, repairing existing window doctor rebates or putting up new cills that allow the air to seal better.

One of the major issues with traditional windows is the damage caused by the corrosion of the paintwork. This is particularly important when windows with sash are involved since the gaps between the sashes can be very large. In these instances, water can penetrate the paint film and cause rotting of the putty as well as underlying wood. Poor weather conditions can exacerbate the decay. To prevent this from happening, windows should be regularly painted with an exterior wood paint.

Areas that have been damaged must be repaired using a resin-based product. This will ensure the maximum amount of original fabric retained. It is important to minimize the number of holes that are created in the frame to allow cable entry because they could let in moisture and cause decay.

The structural movement of the wall can cause deformations 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. Often this can be corrected through the installation of new sash boxes that have been constructed from slow-growing deal (pine) or oak. The cill needs to be constructed of a durable hardwood, like oak, in order to prevent any the movement of new and existing work.

To help reduce this problem, there are now a number of companies who manufacture Boston pattern sash made of wood that will fit into the majority of existing openings. The sash is available in a variety of sizes and finishes to meet the requirements of the modern homeowner. Together with quadruple draught strips and better thermal insulation these new sash can make significant improvements to the energy efficiency of a house.

Aesthetics

A lot of old timber frames possess a dazzling aesthetic appeal, as they reflect, in some shape, the materials, technology, and architectural style of the time they were made. They could also have a significant historical significance in their individual cases. This is particularly true of early windows that were not glazed in timber-framed structures, which were just a collection of openings within the frame that were subdivided horizontally into mullions and wood or iron bars to deter invaders.

It is important to maintain the appearance of traditional wooden window mechnism repair joinery. It is crucial that any decay resulting from water penetration is stopped as soon as it is recognised. It is recommended to do this through thorough painting, especially where there is damage or degradation. It is recommended to choose paints that are intended to be used in a set (primer undercoat and finish) and follow the manufacturer’s recommendations for preparation and number of coats at each stage.

The fungus that causes wet rot is able to spread quickly in old windows made of wood. To prevent this from happening, remove any damaged or rotten parts as quickly as you can. Replace rotting wood with slow-growing deal (pine) and, should it be possible, the same type of wood as the one that is being removed, to avoid differential movement.

Glass became cheaper and more abundant during the late medieval period and into the 17th century. As a result, the glazed openings in timber-framed homes were more elaborate, with moulded mullions and traceries, made of wood and cills that protruded deep. In the past, more often, the glass was placed within frames with rebates and pinned in with 'glazing sprigs', rather than into lead cames. This method of glazing not only makes windows less likely to leak, but also allows for larger sheets of glass to be utilized than would have been feasible without the use of led lights.

Energy efficiency

Traditional timber windows have an excellent energy performance due to their thickness and multi-layer construction. They also pay meticulous attention to detail. They also feature large glass areas and projecting cills that minimise air infiltration. Windows can be designed to improve their energy efficiency by draught-proofing and secondary glazing. It is crucial to remember that these measures need to be taken into consideration in relation to the overall integrity and look of the original windows.

It is sensible to repair or upgrade existing windows that are older rather than replacing them, especially when the improvement in thermal efficiency can be made through simple fixes. The windows of the past often have a historical value that illustrates a variety of technological advances and changes in architectural tastes. The pressure to replace these windows are typically based on the assumption that old windows will need replacement in the near future, however they are capable of providing service for 150, 200 and even 250 years if they are properly maintained.

It is essential to realize that decay issues associated with traditional timber windows are preventable by quick and thorough repairs. It is also essential to identify damp problems and address them promptly to avoid major damage. Early paint deterioration can be a problem because it allows moisture to penetrate into the wood, which can cause wet rot. It is not uncommon for this type of damage to go undetected until the paintwork begins to crack or become curly. However, it could cause structural damage and further decay.

A high-quality paint will prevent this moisture penetration. To avoid condensation and mould, it is important to keep the paintwork as clean as you can. Modern synthetic paints pose a challenge because they are water-resistant, and can cause mildew to develop within the window frame.

The majority of windows from the past were constructed from timber with an extensive proportion of sapwood. The timbers will deteriorate rapidly if exposed to rain, but they can be preserved with an extensive preservation treatment prior to use. It is also crucial to ensure that the kind of wood used is suited to the climate and site conditions, as these elements will influence the durability of the joinery. Local window Installation Cambridge manufacturers offer an array of sash made from timber that can be made to fit the historic openings. They can be built according to the standard Boston pattern dimensions or to custom sizes that are in keeping with the architectural style of historic buildings.

Maintenance

The life span of windows made from timber can be extended significantly by regular inspection as well as a careful redecoration and timely repair. The primary cause of wood decay is the penetration of moisture through the deteriorated paint and putty. This can be prevented by careful painting and using an excellent wood preservative.

It is essential that repairs to old sash or casement windows are well executed and done without causing any disturbance. Many traditional timber window doctor cambridge designs are repairable without removing the frame, and this option should be used whenever it is possible. Loose or peeling paint should be removed carefully and lightly sanded to improve the key of the surface and facilitate an easier adhesion of the new coating. Be careful to avoid stripping old paint layers which may have historic value If these are present, it is recommended that a study of the paint be carried out.

If a portion of wood has rotted 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 a wood preservative, and the junction between the cill for timber and the masonry sub-cill should be sealed.

Replacement of traditional windows using PVC-u may be an appealing option, particularly when the installer offers a 'one stop shop' installation that handles removal and replacement in the span of a day. It is crucial that installers of replacement windows are aware of the history and design of traditional timber frames. This will enable them to make the right recommendations for energy-efficiency improvements and other technological improvements that don't harm the character of a building that is historic. The windows that are replaced should be registered with a Competent Persons Scheme like as FENSA. This will ensure that the replacements are approved as a suitable solution under Building Regulations. It is certainly possible for a skilled and experienced carpenter to install PVC-U windows that match the style of the building originally. This is particularly true where the windows are located in listed buildings or conservation areas.