Four Common Signs That Double Glazed Window Repair Is Necessary
Double glazing windows are a fantastic alternative to conserve energy. However, they could be damaged over time. Luckily, they're easy to fix.
A problem with the seal can be identified by foggy glass, condensation in between the panes, and even mist. A professional can usually solve this issue without having to replace the entire window.
Broken Panes
A stray ball, a an errant rock, or even the force of a strong wind can crack a double pane window. And, when this happens, it can be difficult to tell whether the whole window must be replaced or if a repair can salvage the insulating benefits this type of glass is renowned for.
Repairing a broken glass pane of a double-glazed window isn't as complicated as it might seem. You can do it yourself if you have the right materials and know how to use them. Using the correct tools will ensure that you are not adding any additional damage to your windows. Additionally, you will be able to avoid any injuries from working with glass that is sharp.
The first step is to take off the old sealant around the broken glass. This can be accomplished by hand, as long that you wear gloves and have a method of disposal at hand. Make use of a multi-purpose tool or deglazing knife to do the job. Once you've removed the sealant from the window, you must carefully remove the broken glass and place it in a safe place.
Next, you need to prepare the frame for the replacement pane. Utilize a utility knife to scrape away any old caulking and paint on the rabbets (the grooves in the sash where the glass sits). The wood that is bare is easily exposed with a paint remover or sandpaper. Apply an exterior primer to the exposed area.
You can then apply putty on the rabbets to prepare for the installation of the glass. The putty must be soft and warm to be put into the rabbets. It is essential to apply pressure evenly over the entire surface, ensuring that there are no gaps.
Once the putty is set, you can reinstall the wooden stops and seal the edges to ensure that double pane windows are as secure as they can be. Replace the weather stripping that is at the bottom of the frames in order to improve airflow and stop water from getting into your home. This will also help lower your energy costs.
Foggy Glass
Foggy windows can be a sign of a broken seal, allowing drafts or moisture to enter the space. It is prevalent in humid and moist climates where wooden frames may get rotten when exposed to excessive moisture and condensation. In this situation you might need to replace the window, but it is generally more cost-effective if the glass unit can be repaired.
To avoid breaking the glass, drill small holes inside the frame with a carbide-tipped tool. You can then apply a dehumidifier or a cleaning solution to eliminate the trapped moisture from between the two panes of glass. When you're trying to do this, it's important not to choose a time when the sun is hot or extremely cold. This could cause the glass to break. It's also a good idea to wear gloves and safety goggles since you'll be working with very sharp tools close to the glass.
Once the fog has cleared, you can then add a small tube to one of the holes. You can apply a spray rinse solution to wash down the glass panes and clean off any remaining debris. After the window has dried you can put a caulk around the hole and the glass's edge to shield it from the elements.
Based on how proficient in DIY, you may want to try to repair the leaky seals yourself, rather than call in a professional. But, this is risky and you'll need to monitor the condition of the plug that is installed into the gap. Even if the issue is resolved it is likely to recur within six months as moisture will continue to creep into the gap. This could lead to condensation and draughts within the home as well as posing an electrical hazard. It is best to employ a certified professional to complete the job.
Condensation Between the Panes
Condensation in double paned windows is more than an inconvenience. It indicates that the seals are not working. This allows moisture to enter and damage gaskets and, if the condensing gets too severe, it can also cause rot or blockage to wood window frames. This is usually fixed by replacing the window with new ones that have gaskets and sealings.
This can be expensive and is not always feasible. Especially when one or both panes has cracked or broken. There are options to replace the entire glass unit that can provide long-term double glazing repair solutions.
First, try to clear any condensation repair double glazing with commercial defogging products such as WD-40 Original For Windows. This spray can be applied to both sides of the glass and will usually absorb all the moisture in minutes. This should be done at least once a day, but is able to be repeated if required.
If the problem persists then it might be required to drill a couple of small holes in the outside of the window, just below the bottom edge. The sun's heat will warm the exterior glass and any condensation that forms in the window will flow towards the holes. As the air expands, it will then exit through the holes. This is usually enough to clear the window of condensation, but since it hasn't solved the issue in the first place it is likely to be a continuing issue.
It is also possible to employ methods that do not require holes, however it won't be as efficient and could break or shatter the glass. In essence, a special glue is put into the cracks to stop them spreading further. This could be a useful long-term solution, but it's not as efficient as a replacement unit equipped with complete sealing. It is best to hire an expert to ensure the process is done correctly and to avoid future problems caused by leaks or condensation.
Mist
When mist forms on a window it is usually a sign that the seal of the window has failed. In some cases it can be fixed. However, in most instances, it will require replacing the seal.
This problem can happen with both old and new double-glazed windows. This is usually caused when there is a big temperature difference between indoors and outside. When cold air is pushed against the warm air, condensation can form within the window. The condensation then dry on the glass's surface making fog or mist.
The way that this is prevented with modern double glazing is that the space between the panes is filled with a gas named argon. This creates a powerful barrier between the cold and warm air. The window is also sprayed an silica formulation that is designed to absorb moisture in between the glass panes. It is not uncommon for these chemicals to break down with time and that is when you will start to see a build up of moisture in the window.
If the condensation is only occurring on the inside of the double-glazed windows, it could be possible to have them repaired instead of replaced. The repair process will involve removing the sealed unit from the frame, cutting the panes in two, separating them from the spacer bars, cleaning each one thoroughly before replacing the desiccant. The end result should be an uncluttered window and free of condensation. This is a great option for those looking to save money but don't want replace their windows.
If you have glass that has broken or extensive rot, or frames that have lost their integrity, then it is obvious that replacement will be required. If you have a problem with the seal on your windows it could be possible for your windows to be saved and upgraded to be more energy efficient. You can reach out to an organization in your area that specializes in repairs to double-glazed windows and learn about the options you have to fix the current glass.