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https://www.repairmywindowsanddoors.co.uk/cambridge-windowrepair/

Maintaining Timber Windows A wellmaintained wooden window is an essential element of a building that is historic It is a representation of the various materials and techniques design craftsmanship and aesthetics of the period from which it originates If repairs are possible to existing windows should be made in situ Repairing the most severe areas of decay can be done using proprietary resinbased systems Durability The windows made of wood in many old structures were designed to last for centuries However they need to be maintained to ensure they look good and functioning correctly Maintenance tasks include repairs to sash cables retightening of pulleys for sash and painting There is also a rising demand to upgrade timber windows to increase the efficiency of energy This can include replacing old glazing units fixing the window rebates that are in place or installing new cills to increase the air seal The corrosion of paintwork is a major issue with traditional windows This is especially important in the case of sash windows as the gaps between sashes may be extremely large In these instances water can enter the paint film and cause rotting of the wood or putty underneath Poor weather conditions can exacerbate the rotting To stop this from happening windows should be regularly painted with an exterior wood paint that is suitable Areas that have been damaged must be repaired using a resinbased product This will ensure that the best possible amount of the original fabric is preserved It is important to minimize the number of holes that are made into the frame to allow cable access because they could let in moisture and cause decay The walls structural movement can also lead to distortions in the frame as well as the sash This could result in the sash not fitting properly sticking or jamming in the opening and damaged glazing Often this can be corrected by fitting new sash boxes that have been made from slow grown deal pine or oak The cill should be constructed from a sturdy hardwood such as oak to avoid any movement between the new and existing work There are a variety of companies that produce Boston pattern wooden sash to fit in with the majority of openings These sash are available in a variety of sizes and finishes to meet the needs of the modern homeowner The new sash coupled with quadruple draft strips and a better thermal insulation can make a huge difference to the energyefficiency of a home Aesthetics A lot of old timber frames have a great aesthetic appeal as they show in some form the materials technology and architectural style of the time they were constructed They also may have a significant historical significance in their in their own right This is particularly true of windows that were unglazed in the early days of timberframed structures where the majority were series openings in structural frames that were subdivided horizontally by mullions with vertical iron or wood bars to keep out intruders It is crucial to maintain the appearance of traditional wooden window joinery upvc windows cambridge RepairMyWindowsAndDoors is crucial that any decay that results from moisture penetration should be removed as soon as it is recognised It is best to do this by thorough painting especially where there is damage or degradation It is recommended to use paints designed to be used in a set primer undercoat and finish and to follow the manufacturers recommendations for preparation and number of coats at each stage The fungus responsible for wet rot can quickly spread in old timber windows To stop this from happening get rid of any damaged or rotten components as quickly as you can The replacement of wood that is rotting should be done with care and by using a slowgrowing deal pine and whenever possible the same species as which is being removed to prevent shifting between the new section and existing timbers Glass became less expensive and more abundant during the late medieval period and into the 17th century As a result the glazed openings in timberframed homes became more complex with moulded mullions and traceries made of wood and cills that protruded deep Increasingly the glazing was laid within rebated frames and then pinned with glazing sprigs rather than being inserted into lead cames This method of glazing is not only less susceptible to leaks but it also allows much wider clearer more transparent sheets of glass to be used in windows than would have been possible without the need for leaded lights Energy efficiency Traditional timber windows are energy efficient due to their thickness and multilayer construction as well as their attention to the smallest of details The large glass areas deep projecting cills and the large glazing areas help to reduce air infiltration The windows can be made to increase their energy efficiency through draughtproofing and secondary glazing It is crucial to keep in mind that these measures should be considered when it comes to the overall integrity and look of the original windows So retaining old windows that are in need of repair instead of replacing them is sensible especially when their thermal enhancements can be made costeffectively through simple repairs and upgrades Older windows are usually of historical value as they show a range in technical development and changes to architectural style Most people assume that these windows will need to be replaced in the near future However many of them are still in service for 150 200 or even 250 years if you take care of maintenance It is essential to realize that decay issues with traditional timber windows are easily prevented with prompt and thorough repairs It is also important to recognize damp issues and correct them swiftly to avoid major damage The early deterioration of paint could be a problem as it allows moisture to penetrate into the wood which can cause wet rot It is not uncommon for this damage to go unnoticed until the paintwork begins to crack or become wavier However it can cause structural damage and further decay A good quality paint will prevent this moisture from entering It is also essential to keep the paintwork spotless in order to prevent condensation and mould growth Modern synthetic paints pose a challenge because they are often waterresistant and can cause mildew to develop in the window frame The majority of windows from the past were constructed from sapwoodrich timber These timbers can deteriorate very rapidly if exposed to wet weather conditions but they can be protected by an extensive preservative treatment prior to when they are used It is crucial to select the right type of wood for the site and climate as these variables can affect the durability of the joinery Local window manufacturers create a range of sash made of timber that can be tailored to fit specific historic openings They can be produced in the standard Boston pattern or in custom sizes that can be adapted to historical buildings Maintenance Regular inspection as well as careful redecoration and quick repairs can prolong the life of wooden windows The major cause of decay is the penetration of moisture through deteriorated paint and putty This can be avoided by using a highquality wood preservative and painting the wood thoroughly Repairs to old sash windows and window frames made of casement should be handled with care and minimal disruption Many of the traditional designs for timber windows are repairable without removing the frame and this method should be followed whenever feasible Loose or peeling paint must be removed with care and lightly sanded to improve the key of the surface allowing for an improved adhesion of the new coating It is important to avoid stripping paint layers that could have historical value If these are present it is recommended that a study of the paint be carried out If a piece of wood is decayed the best solution is to take it off and replace it with timber inserts designed to match the existing profiles The inserted wood should also be treated with wood preservative and the connection between the cill for timber and the subcill for masonry should be sealed It is tempting to replace traditional windows with PVC u particularly when the installer offers an allinone installation that includes removal and replacement in a single day It is important that the installers of replacement windows have a thorough understanding of the history and construction of traditional timber frames This will allow them to make the appropriate recommendations for energy efficiency improvements as well as other technological advancements that wont harm the character of a historic building Anyone who installs replacement windows should be registered with a Competent Persons Scheme such as FENSA This will ensure that the replacements are deemed to be approved under Building Regulations as a suitable option It is quite possible for a skilled and experienced carpenter to install PVCu windows that match the character of the original building This is especially true when the windows are situated within listed buildings or conservation areas