How to Repair Timber Windows
Windows made of timber are a stunning feature that can really make a house stand out. However, with time and exposure to harsh weather conditions, they could start to deteriorate.
Instead of replacing the window frames, it's better to make repairs. This will help you save money, and your home will retain its original character.
Repairing rotten wood
Window frames made of wood are always exposed to the elements and are often one of the first elements of a home that show signs of damage and damp. Fortunately, wood that is rotten can often be repaired and handled quickly. The trick is to recognize the problem and address it before it worsens, or worse damage may be caused.
In the beginning, it is essential to assess the extent of the rot and determine whether it's repairable. A thorough exterior inspection is a good place to begin, examining for damaged roof tiles or slates as well as blocked guttering and defective damp proof course (DPC). It is also an excellent idea to look at the inside of the property, including cellars and basements and joist ends that are non-cavity walls.
After you've identified the part that is affected by rot, it's important to eliminate as much of the rotten timber as possible. This will reduce the damage and make the repairs easier. The next step is to make use of a clawed hammer, or pry bar to take out as much wood that is rotting as is. It isn't easy to do, but by pushing the clawed edge against the healthy board and putting the pry bar into the corner you'll be able to create enough leverage to remove the old wood.
When you are removing the decayed timber Be sure to leave a gap between the two. This will stop moisture from entering and causing further damage to the wood around the gap. To minimise the risk of leaks and damage It is recommended to remove all nails and debris from the affected area.
Wood filler or epoxy can be used to fix the remaining boards after removing the rotten wood. This is a simple and relatively cheap solution for fixing wood rot in windows made of timber, and can be easily sanded, then painted to match the existing frame.
If the extent of the decay is serious However, it might be more cost-effective to replace the entire window frame with a new one especially if you're seeking an option that can protect against further moisture penetration. It is also advisable to contact a professional timber window repair service to see what options are available to you.
Splicing or scarfing
Timber windows are an excellent option for homes built in the past and listed buildings, but can be utilized in new construction. They are more expensive than uPVC however, they offer long-term advantages and increase the value of your home.
They are very durable and can be manufactured to any size. They are also easy to retrofit and provide excellent thermal performance. They require periodic maintenance, especially painting.
There are two main categories of timber: softwoods and hardwoods. Hardwoods are broad-leafed deciduous trees. They possess a very complex cellular structure, which gives them excellent dimension stability. Softwoods however, come from coniferous or needle-leafed trees and have a less complex cellular structure.
Traditional timber frame structural joints were created by mortice and Tenons, also known as comb joints. These joints are nailed or pinched into place, but are not joined using adhesive. Water can easily flow between the sections of timber, causing rot or staining. Poor workmanship can contribute to this. Fixtures that aren't correctly inserted or are not covered can allow moisture to be introduced into the frame. This can lead to water stains and rust on the window frames when it is allowed to happen.
It is not recommended to replace a timber sash windows with uPVC especially in historic or listed buildings. This can compromise the structural integrity. uPVC is also a cheap material with a limited lifespan. It is disposed of in the landfill.
Modern timbers like Accoya and Red Grandis are impregnated and treated, so that they are immune to the effects of weather conditions and insects. If properly maintained and painted, these windows will provide the longest service. They can be equipped with burglar-proof glass that increases the force needed to open the windows and makes them harder to break.
While replacing timber sash windows using uPVC could be less expensive in the beginning but it's not a feasible option for historic or listed buildings as it can damage the property's integrity and could be in violation of planning permission. uPVC is also noisy, and will last a limited time before it is required to be replaced.
Filling in cracks and splinters
If you take care of your timber windows, they will last for many years. They can enhance the look of a structure, add decorative elements, and repairs to upvc windows serve their primary function in keeping the building warm and dry. As with everything, they are susceptible to damage and wear. It is crucial to take care of them and repaired if this happens.
Wood decay is the most frequent issue that can affect windows made of wood and doors, and it's not just a case of replacing rotten parts. Once the frame is damaged by rot, it could be a challenge to repair. That's why it's essential to conduct regular inspections of your timber windows, especially prior to winter comes around. The relentless cold temperatures and rain can be particularly rough on the windows, thereby increasing the chance of water penetration.
When a window is dismantled it's important to make a note of the frame's condition and noting any areas that are seriously damaged. This will help you save time and money as the process of restoring it will be much easier. It can also save you the cost of replacing a complete window.
If you are looking to replace a damaged part of a wooden window it is always better to splice or scarf in an entirely new piece of wood that is seasoned rather than attempting to fix the damaged one. This can be done by either cutting away the damaged section to at least 5cm past the point of rot or by cutting off the entire sash and splicing in a new one.
The final step is to treat the wood with an appropriate preservative. This is to prevent moisture from getting into the wood, which could cause it to decay and weaken the structure of the frame. It is important to paint your windows on a regular basis even if you don't plan to treat them.
In most instances, windows made of timber that require repairs can be fixed by the handy DIYer. However in the event that the sashes or internal linings are broken it may be necessary to take down the window and re-build them. A broken counterbalance cord on double-hung windows is among the most difficult issues to fix, as it can only be repaired by taking the sashes out of the frame and disassembling it.
Painting
A well-painted finish can make a huge difference to your windows made of wood. It can make windows appear fresh and new. But it can also keep them in good health by covering any signs of rot or other issues. Before you paint but, ensure that the wood is dry. This is crucial, since moisture can cause wet rot. If you're not sure, try a wood moisture meter for testing the moisture content of the timber. There is a possibility of moisture even if the wood appears and appears dry to the touch, which is why it is important to know whether your window frames are susceptible to wet rot.
It is a good idea to clean the entire frame with a damp, soft cloth prior to painting. This will eliminate any grease or oils marks. This will prevent you from spreading dirt and will make cleaning easier. It is also advisable to remove the handles on your windows if you have them, and putting them to one side. This will allow you to work with the frames without having to worry about breaking the glass.
Apply a thin layer of primer with a clean, dry brush when you are ready. This will give your surface more depth, and also prepare it for the final coat of paint. Dry it and then sand it gently with fine sandpaper to give it a smooth finish.
The first coat of paint is applied. Paint in a thin, even layer. After the paint has dried, sand the surface once more gently prior to applying the second coat.
Repeat this process until your window is the color and finish you want. It is possible to paint your timber windows every 6 to 10 years, based on where they are located and the amount of sun they receive. Regular maintenance is the best method to ensure that your windows made of timber look and function to their best as long as you can.