Cambridge Window Tips From The Top In The Business

Maintaining Timber Windows

A well-maintained window made of timber is a crucial element of the historical fabric of a building. It is a representation of the different materials and technologies as well as the craftsmanship and architectural style of the time period from which it dates.

If possible, repairs should be made on-site. Repairing the worst areas of decay can be done by using specialized resin-based systems.

Durability

The timber windows in many historical buildings were built to last for hundreds of years. But, they have to be maintained to ensure that they look great and working correctly. Maintenance tasks include repairs to sash cords as well as tightening the pulleys for sash and painting. There is a growing need for upgrading timber windows to increase energy efficiency. This could include replacing old glazing units, fixing existing window rebates, or installing new cills for improved air seal.

One of the major issues with traditional windows is damage caused by the corrosion of the paintwork. This is particularly true when windows made of sash are involved because the gaps between sashes can be extremely wide. In these situations water may get through the paint film and cause rotting of the putty and the wood beneath. The rotting process can be made worse by poor weather conditions. To avoid this windows from becoming rotten, they must be regularly painted with a suitable exterior wood paint.

Areas that have been damaged must also be repaired using a resin-based product. This will ensure that the highest possible amount of the original fabric is preserved. It is crucial to reduce the number of holes made into the frame to allow cable entry, because they could let in moisture and cause decay.

The wall's structural movement can cause deformations in the frame and the sash. This could result in the sash fitting incorrectly and jamming or sticking into the opening, or breaking glass. This can be fixed frequently by putting in new sash frames made of slow-grown deal (pine), or oak. The cill should be made from a sturdy hardwood such as oak to prevent movement between the existing and new work.

To help reduce this problem to reduce the risk of this happening, there are several companies that manufacture Boston pattern sash made of wood that will fit into the majority of existing openings. These sash come in a variety of sizes and finishes to suit the needs of modern homeowners. In conjunction with quadruple draught strip and improved thermal insulation, these new sash options can make a substantial difference to the energy efficiency of a home.

Aesthetics

A lot of old timber frames have a great aesthetic appeal because they show, in some shape, the materials technology, design, and style of the time they were built. They also may have significant historical value in their own right. This is especially true of early unglazed window openings in timber framed buildings which were simply a series of openings in the structural frame sub-divided horizontally into mullions, and vertically into iron or wood bars to deter intruders.

Traditional window joinery made from timber can be a highly decorative element of a structure and is essential to keep its appearance. It is vital that any decay caused by the penetration of moisture should be removed as soon as it is discovered. This can be done by applying a thorough coat of paint, particularly in areas in which there is already damage or deterioration. It is best to use paints that are designed 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 responsible for wet rot can spread quickly in old timber windows. To stop 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 timber as the one that is being removed, to avoid any differential movement.

Glass became cheaper and more abundant during the late medieval period and into the 17th century. As a result, the openings for glazed windows on timber-framed houses became more complex with moulded mullions and traceries, made of wood and cills that protruded deep. In the past, more often, the glass was laid within rebated frames and pinned in with 'glazing sprigs', rather than into lead cames. This method of glazing is not just less prone to leaking but it also allows larger clearer, more transparent sheets of glass to be used in the windows than would otherwise be possible without the need for lead lights.

Energy efficiency

Traditional timber windows provide an excellent energy performance due to their thickness and multi-layer construction, as well as meticulous attention to detail. The large glass areas, deep projecting cills, and the large glazing areas help to reduce air infiltration. Windows can be designed to improve their energy efficiency with draught-proofing and secondary glazing. It is essential to keep in mind that these measures must be taken into consideration when it comes to the overall appearance and integrity of the original windows.

It is sensible to repair or upgrade existing windows that are older rather than replacing them, particularly when improvements in thermal efficiency can be achieved through simple fixes. The windows of the past often have historical significance that demonstrates a range of technological advancement and changes in architectural taste. The pressures to replace these windows are typically based on the assumption that the old windows will need replacement in the near future, however most are still capable of serving for 150, 200 or even 250 years if properly maintained.

It is essential to understand that the decay issues caused by traditional timber windows can be prevented by regular maintenance and swift repairs. Additionally, it is essential to spot damp penetration issues and to remedy them quickly to avoid major damage. Early deterioration of paint is a particular problem, since it allows moisture penetrate the wood and cause wet rot. The damage is usually not noticed until the paintwork becomes wavy or cracked however, it can cause serious structural damage and lead to further decay.

A good quality paint will prevent this moisture from entering. To prevent mould and condensation, it is important to keep the paintwork as clean as possible. Modern synthetic paints are problematic because they are water-resistant and may cause mildew to develop within the window frame.

The majority of windows from the past were made from timber that contained an extensive proportion of sapwood. These timbers are susceptible to deterioration rapidly if exposed to wet weather conditions, but they can be preserved with a thorough treatment of preservative before they are put to use. It is crucial to select the right kind of wood for the location and climate, as these factors can affect the longevity of the joinery. Local window manufacturers offer a wide range of sash made from timber that can be adapted to fit historical openings. They can be made according to the standard Boston pattern dimensions or to specific dimensions that are compatible with the historic architecture.

Maintenance

The life of timber windows can be extended by regular inspection as well as a careful redecoration and timely repair. The main reason for the decay is the infiltration of moisture through deteriorated paint and putty. This can be avoided by using a good wood preservative and thoroughly painting the wood.

It is important that repairs to old sash or casement windows are properly executed and completed with minimal disruption. It is possible to fix the majority of traditional wooden window designs without taking the frame off. This is a must whenever it is possible. Paint  window repair cambridge  is peeling or loose must be removed with care and sanded lightly to improve the  key of the surface and allow for an easier adhesion of the new coating. Be careful to avoid stripping paint layers that might have historical significance, and where these are present, it is recommended that a study of the paint be conducted.

If a piece of wood is rotting the best option is to take it off and replace it with timber inserts shaped to match existing profiles. The wood that is being inserted should be treated with a wood preservative and the connection between the cill for timber and the sub-cill of the masonry should be sealed.

It can be tempting to replace traditional windows with PVC u, especially when the installer provides an  all-in-one installation that includes both replacement and removal in one day. It is crucial that installers of replacement windows have a deep understanding of the history and design of traditional timber frames. This will enable them to make appropriate recommendations for energy efficiency improvements and other technological upgrades that will not harm the historical character of a building. Those who provide replacement windows must be registered under a Competent Persons Scheme like as FENSA. This will ensure that replacement windows are approved by the Building Regulations as a suitable alternative. A skilled carpenter can install PVC-u Windows that are sympathetic to original building's character. This is particularly true when the windows are situated within conservation areas or listed buildings.