eggswamp55

Maintaining Timber Windows A well-maintained timber window is an important element of the historical fabric of a building. It illustrates in varying degrees the different materials and technologies as well as the craftsmanship and architectural style of the time that it was built in. When repairs are feasible to existing windows should be carried out in-situ. Repairing the most severe areas of decay can be done with the help of specialized resin-based systems. Durability Timber windows were built to last for hundreds of years. They do require maintenance to keep them looking great. Maintenance tasks include repairs to sash cables, retightening of sash pulleys and painting. There is also a rising demand to upgrade the timber windows to increase energy efficiency. This could mean replacing old glass units, repairing existing window rebates or putting in new cills that allow for better air sealing. One of the main issues with traditional windows is the damage caused by the corrosion of the paintwork. This is especially important where windows made of sash are involved because the gaps between sashes can be quite large. In these situations water can get into paint film and cause rotting of the putty or wood beneath. The rotting may be further aggravated by poor weather conditions. To avoid this windows from becoming rotten, they must be painted regularly using an exterior wood paint that is suitable. Areas that have been damaged must be repaired using resin-based products. This will ensure that the highest possible amount of the original fabric remains. It is important to minimize the number of holes drilled into the frame to allow cable entry, as these can admit moisture and cause decay. The structural movement of the wall can cause deformations in the frame and sash. This can result in the sash not fitting properly or sticking or jamming into the opening and cracked glazing. This is often corrected by putting in new sash frames made of slow-grown deal (pine), or oak. The cill should be constructed from durable hardwood such as oak to prevent movement between the old and new work. There are now several companies that manufacture Boston pattern wooden sash that fit most existing openings. The sash is available in a variety of sizes and finishes that meet the requirements of the modern homeowner. These sash are combined with quadruple draft strip and a more efficient thermal insulation, could make a significant difference to the efficiency of a home's energy use. Aesthetics Many old wooden windows have an excellent aesthetic value because they typically show, in a particular way the materials and technologies and architectural style of the time from which they originate. They also may have a significant historic value in their own right. This is particularly true of early windows that were not glazed in timber framed buildings where the great majority were simply a series of openings within the structural frame sub-divided horizontally into mullions and vertical wood or iron bars to keep out intrusions. Traditional window joinery made from timber can be a stunning element of a structure and is essential to keep its appearance. It is crucial that any decay caused by moisture penetration should be stopped as soon as it is recognised. It is recommended to do this with thorough painting, particularly if there has been damage or degradation. It is recommended to use paints specifically designed to be used part of the system (primer undercoat, finish) and follow the manufacturer's instructions regarding preparation and the amount of coats required at each stage. The fungus that causes wet rot can quickly spread in old timber windows. To prevent this from happening, take out any damaged or rotten components as soon as you can. Replace rotting wood with slow-growing deal (pine), and should it be possible, the same type of timber as the one that is being removed, to prevent any differential movement. In the late period of the 17th century and the middle of the medieval period, glass became less expensive and more plentiful so that glazed openings in timber-framed structures gradually became more sophisticated, with tracery made of wood moulded mullions, moulded mullions, and deep projection cills. In recent times, glass was fixed into frames that were rebated using glazing sprigs, not lead cames. This method of glazing not only makes the windows less likely to leak, but also allows for more clear glass sheets to be used than would have been possible without the use of leaded lights. Energy efficiency The traditional timber windows are energy efficient due to their thickness, multilayer construction and care for detail. The large glass areas, deep projecting cills, and the large glazing areas reduce air infiltration. The windows can be modified to increase their energy efficiency by draught-proofing and secondary glazing. However it is essential to remember that such measures must be considered in relation to the overall quality and appearance of the original window. It makes sense to repair or upgrade existing windows, rather than replacing them, especially when the improvements in energy efficiency can be made through simple repairs. The windows of the past often have a historical value that demonstrates a range of technical development and changes in architectural style. Most people think that these windows will have to be replaced in the near future. However, most can still provide service for 150,200, and even 250 years if you take care of maintenance. It is crucial to understand that decay issues associated in traditional timber windows are easily prevented with quick and thorough repairs. In addition it is crucial to identify damp penetration problems and address them swiftly to avoid serious damage. The early deterioration of paint can be a problem because it allows moisture to get into the wood, which can cause wet rot. It is not uncommon for this issue to go unnoticed until paintwork begins to crack or become curly. However, it could cause structural damage and further decay. A good quality paint will stop this moisture from entering. 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 formulated to be water-resistant, and this may cause the growth of mildew inside the window frame. The majority of windows from the past were constructed from sapwood-rich wood. The timbers will deteriorate rapidly if exposed to wet weather conditions, but they can be protected with a thorough preservative treatment before they are used. It is important to choose the right kind of wood for the site and climate, as these factors can 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 can be produced in the standard Boston pattern or in custom sizes to fit the architectural style of historic structures. Maintenance The life of timber windows can be extended by regular inspection, careful redecoration and timely repair. The primary cause of wood decay is the penetration of moisture through deteriorated paint and putty. This can be avoided with careful painting and the use of an excellent wood preservative. Repairs to old sash windows and window frames made of casement should be done with care and with the least amount of disruption. It is possible to repair many traditional timber window designs without taking the frame off. This is a must whenever it is possible. Remove peeling or loose paint and then lightly sand the surface to improve the 'key” of the surface. This will allow the new coating to stick better. It is crucial to avoid removing old paint layers, as they could have historical significance. When a section of wood is rotting the best way to deal with it is to remove it and replace it with timber inserts designed to match existing profiles. The inserted timber should also be treated with wood preservative. The junction between masonry sub-cill and timber cill should be sealed. Replacement of windows made of traditional PVC-u can be a tempting option, especially when the installer offers a “one-stop shop” installation that takes care of both removal and replacement within the span of a day. However, cambridge windows and doors is crucial that the person who installs replacement windows has a full knowledge of the construction and history of traditional timber frames. This will allow them to make the appropriate recommendations for energy-efficiency improvements and other technological advancements that won't harm the character of a historic building. Window replacements should be registered with a Competent Persons Scheme such as FENSA. This will ensure that the replacements are approved as a suitable solution under Building Regulations. A skilled carpenter is able to install PVC-u windows that conform to the original building's style. This is particularly applicable when windows are situated within listed buildings or conservation areas.