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Why It's Important to Repair a Broken Window Seal
Condensation on windows that can't be cleaned away is an obvious sign that the window seal has broken. This can cause distortions in the view through the glass and affect the insulation of your home.
Defogging can temporarily fix the issue however the most effective solution is to replace the IGUs (IGU). This should be handled by a reputable window company to ensure the replacement is done correctly.
Contraction and expansion
Seals in dual-pane windows may break down over time due to the expansion and contraction of spacers that separate the glass. This is because of the temperature fluctuations that occur throughout the day. As the sun heats up the glass, it expands putting pressure on the window seal. As the glass cools at night and the seal around the window shrinks. The constant contractions and expansions may cause a crack in the seal of the window. This allows humidity to enter the glass, causing fog to form between the panes. The crack in the seal can allow inert gases such as argon, which get trapped between window panes to escape. This greatly reduces the insulation value of the window.
Other signs of a broken window seal could be visible mold or staining along the edges of a double-pane window. You might be noticing a rise in your energy bills or feel drafts in the windows. In this time the window frames may be pulled away from the walls or shift. Repair My Windows And Doors is a sign you need to replace the window seal.
Replacing the seals of a dual pane window is a fairly complex and labor-intensive task that typically requires removing both the old seal and the new one, then cleaning both windows, and then replacing the IGU. Although it is possible to replace the IGU on your own, hiring a professional is highly advised. This process is prone to mistakes that can cause pest infestation and water damage.
A professional can also help you find the most effective repair solution to your situation, and offer suggestions on a long term plan to keep your window sealed correctly. It could be a temporary fix such as caulking between the window frame and the wall, to stop the entry of water and bugs into the home. Or it could involve replacing the entire IGU with a new one that is more durable against weather conditions and damage to the seal. It could also mean installing the window using an alternative IGU that has a better quality seal or is better suited to your home's climate.
Weather Conditions
While window seals are designed to withstand harsh weather conditions, constant exposure to the elements could eventually cause them to fail. Extreme temperature changes can cause the glass within the window to expand and contract. This can put pressure on the seal over time. This is particularly true for houses that are situated in areas with hot summers and cold winters.
Window seals can also be subject to damage from high humidity, storms and other environmental factors. Wind particularly can be very hard on windows and cause them to shift or loosen over time. When this happens air can enter the glass panes of an insulation window, leading to condensation or fogging. Fogging isn't a safety issue, but it could make windows appear ugly and make them hard to see through.
Water and humidity can also cause window seals' to wear away through causing rot to the frame or causing mold growth. If you're experiencing these issues, it's likely that your window seals need replacement.
Higher energy bills are another indication that the window seals have started to fail. If your window seals are damaged, your heating and cooling systems will have to be more efficient to keep your family and you comfortably. This could result in higher energy costs.
You may be noticing that it's getting harder to open or close your windows. This is a sign that the seals on your windows have become stiff and are not opening or closing properly. It is essential to get this problem fixed before it gets out of hand and your windows won't be as energy efficient as they should be.
You can extend the lifespan of your window seals by following the maintenance instructions of the manufacturer. It is essential to clean them regularly with mild detergents or other approved cleaning agents and to keep them free of debris and dirt. Avoid using heat guns and chemical strippers to clean your windows. They are able to degrade the sealant.
Damage
Modern triple and double pane windows are different from the single-paned windows of the past. They have glass panes that are separated by air spaces, and then completely sealed around the edges. This keeps the humidity out. The spaces between the glass panes are filled with an inert gas, such as Krypton or argon to reduce transfer of heat or cold outside the window. These windows are also referred to as Insulated Glass Units (IGUs).
If you spot condensation or other signs of broken window seals, it's best to consult a professional evaluate the situation and decide the best method of action. Ignoring the issue will only cause more damage and will result in more energy costs and a more obvious impact on the comfort of your home.
The most economical option is to replace the IGU, while preserving the existing window frame. This is particularly beneficial when your frame is in good condition and has a higher R rating than your previous windows. You can keep a significant amount of insulation efficiency.
If the frame is damaged, old or has any other exterior damages and is in poor condition, you may want to consider a full window replacement to ensure maximum energy efficiency and protection. A professional can carry out this type of repair easily and quickly, restoring your window's insulating properties while also improving your home's appearance.
If your window is still under warranty, a manufacturer or installer may be willing to repair or replace the damaged IGU for free. If you're not sure you are, make sure to check the documentation for your window or call the installer to find out whether it is possible.
Installation
Window seals play a vital role in keeping drafts out and ensuring that your home is energy efficient. It's not only important to repair a broken window seal when you notice it, but also to perform preventative maintenance that helps prevent issues in the future.
Window maintenance is a continuous process that involves checking for gaps, cracks and re-caulking when needed and cleaning. Re-caulk the window seals at least once each year to limit the impact of humidity and temperature. This is particularly crucial for older homes whose foundations have shifted since the initial installation.
Regular window maintenance can aid in identifying any issues before they become a problem. This will allow you to schedule a professional to repair your windows as needed. If you notice condensation on the windows, it could indicate that the frame and glass is not sealed properly. This could lead to poor indoor air quality. If you also hear a sound of tapping when you push on your window it's a sign the window is loose and requires repair.
Physical damage to the frame of a window could also cause the window seal to crack. This could occur when your pets or children accidentally strike a window with a broom, or when harsh cleaning products like paint strippers were applied too close to windows. It could also happen when windows are constructed with aluminum frames, which do not offer the same insulation as fiberglass or wood.
If your windows are newer and still under warranty repairs or replacement is often the best option for a broken seal. This will ensure that your window is quickly repaired or replaced, and may also give you the chance to upgrade to an energy-efficient frame, such as wood or fiberglass.
If you find an insulated glass unit (IGU) that is broken, hiring a professional to replace it is generally the most cost-effective, long-term and economical solution. It is worth noting, however, that many modern windows have removable IGUs that contain the gas that insulates, allowing you to replace just the glass unit instead of the entire frame.