Due to age, improper installation, or a number of other factors, the air pocket seal in dual-pane windows can fail, allowing the insulating gas to escape and moisture to become trapped between the panes.
This causes window fogging and greatly reduces the efficiency of your windows. To get a free window repair or replacement quote from our team, click the button and fill out the form.
The two panes of glass in a double-pane window are actually separated by a thin interior air pocket. When the windows are manufactured, this pocket is often filled with a non-toxic, insulating gas—like argon or krypton—and then sealed tight.
The seal plays two key roles: first, it prevents the insulating gas from escaping. But, it also prevents outside air and moisture from getting into the air pocket. Most dual-pane windows contain desiccant beads. These are moisture absorbers: the beads will dry out the air inside the air pocket after the window has been sealed.
They can also handle incidental amounts of moisture shortly after the seal is breached. Without its insulating gas in the sealed air pocket, your window loses a great deal of its energy-efficiency. As condensation enters the air pocket, your windows will start to fog up from the inside. Difficult to clean, this makes your windows—and your home—a lot less appealing. For homeowners who are thinking about listing their homes in the near future, this can be a source of frustration. That efficiency loss is quantifiable, too.
The energy-efficiency of window glass is measured by its r-value—essentially, how well it slows the transfer of heat energy. With insulating gas, many double-pane windows can reach an r-value of 6. These cookies will be stored in your browser only with your consent. You also have the option to opt-out of these cookies. But opting out of some of these cookies may have an effect on your browsing experience. Necessary cookies are absolutely essential for the website to function properly.
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Home » Blog » All you need to know about resealing double-glazed windows. In this concise guide, we will show you: how to recognize problems with the seal on your double-glazing , how to know if a failed window seal can be fixed, how to repair a double-glazing window seal.
If a window seal is found to have failed soon after the installation of double-glazing, the window is likely to be carrying a manufacturing defect or problems with how the windows have been installed. Problems with the frames, including structural damage and warping, can increase the likelihood of the seal becoming punctured or failing. This can happen if paintwork is being stripped with a heat gun nearby the windows or property renovation work is taking place nearby.
Even pressure washing of the windows can cause this damage. Moisture build-up on the window over time can lead to the growth of mold that can erode the seal. The seasonal cycles of hot and cold temperatures cause materials in your property to repeatedly expand and contract. Over time, this wears the seal down to a point, late in the life span of the window, where it fails.
These problems indicate that you will need to repair your window seal. Attempt a DIY repair: The options available to the DIYer are limited to strategies to tackle the ingress of moisture and air by reinforcing the sealing of the window pane externally with caulking, or lengths self-adhesive rubber seals that can be applied to the junction between the glass and the frame.
This may offer some short-term relief but at best only defers the problem. Obtain a professional repair of your window seal: Many double-glazing companies will be pleased to visit your property to tackle a broken seal. Professionals can not only reseal the window but also tackle the unsightly condensation build-up between the panes to refresh your view.
It is always worth checking the paperwork for your windows to see if they are still in warranty as the manufacturer and company who installed them may be able to remedy the problem without additional expense. Replace your double-glazing: Even with the best efforts at repair, a failed seal is likely to recur as the window generally ages.
It may be time to get new windows, especially if you are experiencing significant draughts and a rise in energy bills. Conditions Applicable 2. In the event of an unsatisfactory survey report of which the Company shall be the sole judge , the Company reserves the right to cancel the contract, after having given the Buyer a full written explanation of the reasons for doing so.
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