7 Things You've Always Don't Know About Cambridge Window
Maintaining turning lock cambridge www.repairmywindowsanddoors.co.uk -maintained wooden window is a crucial element of a building that is historic. It reflects, in various degree the technology and materials of the time period it was constructed, as well as the architectural style and craftsmanship.
If possible, repairs should be made in-situ. Repairing the most deteriorated areas of decay can be accomplished by using specialized resin-based systems.
Durability
The timber windows in many historic buildings were made to last for a long time. But, they have to be maintained to ensure that they look good and functioning correctly. Maintenance tasks include sash cord repairs as well as tightening the sash pulleys and painting. The demand for upgrading 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 to increase the air seal.
The deterioration of paintwork is a major problem with traditional windows. This is particularly important in the case of sash windows because the gaps between sashes may be very large. In these situations water can get into paint film and cause rotting to the wood or putty underneath. Weather conditions that are not ideal can accelerate the decay. To avoid this, windows should be painted regularly with a suitable exterior wood paint.
In addition to repainting, areas that have corroded need to be repaired with the help of a resin-based repair solution. This will ensure that the maximum amount of original fabric preserved. It is crucial to reduce the number of holes that are made into the frame to allow cable access, as these can admit moisture and cause decay.
Another issue with older windows is the structural movement within the wall that can cause deformation of the frame and sash. This could result in the sash fitting incorrectly, jamming or sticking in the opening, and even broken glass. Often this can be corrected through the installation of new sash boxes that have been made from slow grown deal (pine) or oak. The cill must be constructed of a durable hardwood like oak to avoid any movement between the old and new work.
To alleviate this issue to reduce the risk of this happening, there are a number of companies who manufacture Boston pattern sash made of wood that will fit into the majority of existing openings. They are available in a variety of sizes and finishes to suit the needs of today's homeowner. Together with quadruple draught strips and better thermal insulation these new sash options can make significant improvements to the energy efficiency of your home.
Aesthetics
A lot of old timber frames have a great aesthetic appeal, since they display, in a certain form, the materials technology, design, and style of the time they were built. They may also have significant historical value in their in their own right. This is especially true of early unglazed window openings in timber-framed buildings, which were just a collection of openings in the frame, which were divided horizontally into mullions and wood or iron bars to keep out intrusions.
It is essential to preserve the appearance of traditional wooden window joinery. As soon as you notice any signs of decay caused by water penetration it is crucial to stop it. This is best accomplished by a thorough painting process, especially in areas where there has already been damage or deterioration. It is advisable to use paints specifically designed to be used part of a system (primer, undercoat and finish) and follow the manufacturer's guidelines in terms of preparation and the number of coats required at each stage.
Wet rot is a typical problem for older timber windows. The best method to stop it from developing is to remove sections that are damaged or rotten as soon as you can to stop the spread of the fungus that causes it. Replace rotting wood with slow-grown deal (pine), and if possible, the same type of timber as the one being removed to prevent the possibility of differential movement.
In the late period of the 17th century and the middle of the medieval period, glass became cheaper and more plentiful so that glazed openings in timber-framed buildings gradually became more sophisticated with wooden tracery, moulded mullions and deep protruding cills. The glazing was increasingly laid within rebated frames and then pinned by 'glazing sprigs' rather than being inserted into lead cames. This method of glazing is not only less prone to leaking but also allows for more expansive, clearer sheets of glass to be used in the windows than would be possible without the need for leaded lights.
Energy efficiency
Traditional timber windows are energy efficient due to their thickness, multilayer construction and focus on the smallest of details. They also feature large glass areas as well as deep projecting cills that reduce air infiltration. With secondary glazing and draught proofing, windows can be made more efficient to improve their energy efficiency. It is crucial to remember that these measures must be considered when it comes to the overall integrity and appearance of the original windows.
It is logical to fix or upgrade windows, rather than replacing them, particularly when improvement in thermal efficiency can be made by simple repairs. The windows that are historic have a lot of historical significance, since they reflect a variety of technological advancement and changes in architectural taste. Most people think that these windows will have to be replaced in the near future. However, they can still provide service for 150,200, and even 250 years with proper maintenance.
It is important to recognise that the decay problems associated with traditional timber windows can be avoided by regular maintenance and prompt repairs. In addition, it is essential to spot damp penetration issues and fix them promptly to avoid major damage. The early deterioration of paint can be a problem because it allows moisture to penetrate into the wood, leading to wet rot. This type of damage is typically not apparent until the paintwork is wavy or cracked, but can cause significant structural damage and lead to further decay.
A good quality paint will prevent this moisture penetration. To avoid condensation and mould it is crucial to keep the paintwork as clean as you can. Modern synthetic paints are problematic because they are often water-resistant, and can cause mildew to develop in the window frame.
The majority of older windows were constructed from timber with an extensive proportion of sapwood. These timbers deteriorate quickly if exposed to rain, but they can be protected by a thorough preservation treatment before use. It is also important to ensure that the type of timber used is well-suited to the climate and site conditions, as these factors affect the durability of the joinery. Local window manufacturers produce a range of sash made of timber that can be customized to fit specific historic openings. They are available 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 considerably by regular inspection as well as a careful redecoration and timely repair. The major cause of decay is moisture leaking through deteriorated paint and putty. This can be avoided by using a high-quality wood preservative and thoroughly painting the wood.
Repairs to old sash windows as well as casement window frames must be done with care and with minimal disruption. Repairs can be made to the majority of traditional wooden window designs without removing the frame. This should be done whenever possible. Loose or peeling paint should be removed carefully and sanded lightly to increase the 'key' of the surface and facilitate an easier adhesion of the new coating. Care should be taken to avoid stripping old paint layers which could have historical value If these are present, it is recommended that a study of the paint be conducted.
When a section of wood is decayed the best option is to take it off and replace it with timber inserts designed to match the existing profiles. The inserted timber should also be treated with wood preservative, and the joint between the masonry sub-cill and the timber cill should be sealed.
Replacement of traditional windows using PVC-u is an attractive option, especially when the installer provides an "all-in-one" installation service that can handle removal and replacement within the span of a day. It is essential that installers of replacement windows have a deep understanding of the history and design of traditional timber frames. This will allow them to make the appropriate suggestions for energy efficiency improvements and other technological improvements that don't harm the character of a building that is historic. Anyone who installs replacement windows should be registered under a Competent Persons Scheme like as FENSA. This will ensure the replacements are deemed to be approved under Building Regulations as a suitable option. It is certainly possible for an experienced and skilled carpenter to install PVC-u windows that are sympathetic to the the building originally. This is particularly true where windows are situated in listed buildings or conservation areas.