Insulated glass units, or IGUs, are popular in Ottawa homes for their ability to keep indoor temperatures comfortable despite Canada’s changing seasons. These double-pane windows provide better energy efficiency and help reduce energy bills. However, like many elements in a house, insulated glass units have a lifespan. They do eventually experience wear and tear, especially the seals around them. If you are curious about how long these seals last, why they fail, and when to consider repairing them, this blog will help deal with window seal failure.
The Lifespan of Insulated Glass Units
On average, insulated glass seals last between 10 and 20 years. Several factors can influence whether a seal lasts towards the lower or higher end of this spectrum. High-quality windows and expert installation can extend the lifespan. Regular maintenance can also help preserve the integrity of the seals. But no seal will last forever. Understanding when and why seals might fail can put you in a better position to make timely decisions about window repair or replacement.
Why Do Insulated Glass Seals Fail?
Several factors generally account for seal failure in insulated glass units. Here are the primary reasons why the seals might break down:
- UV Exposure
Citizens of Ottawa often enjoy sunny weather, but sunlight can be harsh on their window seals. Ultraviolet (UV) rays can deteriorate the integrity of the seal. Over time, this constantly beats down on the window seals, causing them to become brittle and crack. Once cracks form, failure modes such as leaks and condensation become likely.
- Moisture Infiltration
Moisture is another common cause of failed window seals. When water finds its way into the edges of glass panes, the seals become compromised over time. This can happen due to rain or simply high humidity levels. Moisture is particularly troublesome during Ottawa’s rainy seasons, making windows more prone to seal damage.
- Frame Movement
The structure of a house is never entirely static. Temperature fluctuations cause material contraction and expansion during Ottawa’s cold winters and hot summers. These changes can lead to slow movement or settling in window frames, putting pressure on seals and causing cracks. This means additional stress on the seals that might eventually lead them to break.
- Temperature Fluctuations
Ottawa experiences significant temperature shifts from winter to summer. These changes can make the frames around the windows expand and contract, creating stress points on the seals. Over time, this stress can cause cracked window seals, leading to faults like air and water leaks.
- Poor Installation
Even high-quality windows can suffer if poorly installed. Incorrect installation can lead to improper sealing, making the glass units more susceptible to failures early on. Always ensure that professionals handle the installation process to avoid these problems.
Signs of Window Seal Failures
Recognizing the symptoms of a broken window seal can help you intervene before more significant damage occurs. Several signs are easily noticeable and indicate that something is wrong:
- Fog Inside the Panes
One of the most visible signs of seal failure is fog or condensation trapped between double-pane windows. If windows appear foggy and can’t be cleaned away, it’s a clear sign that moisture has infiltrated due to a seal failure.
- Lower Energy Efficiency
Windows with failed seals often lose their energy efficiency. You might notice higher energy bills, as the windows no longer provide adequate insulation to keep temperatures stable. This can also lead to uncomfortable indoor temperatures during seasonal extremes.
- Physical Signs of Damage
Inspect your insulated glass units regularly for any cracks or defects in the seals. Physical damage can range from cracks to discoloration or deformation. Catching these early can save you from more extensive and costly repairs later.
Glass Repair vs. Replacement: What Should Ottawa Homeowners Do?
Figuring out whether to repair or replace failed window seals is an important decision. Each option comes with its benefits and costs. Let’s break it down to know when each approach might make sense.
When to Opt for Seal Repair
– Minor Damage: If the seal damage is minimal and localized, opt for a seal repair. Quick fixes can prevent further degradation.
– Short-Term Plan: If you are planning to replace more significant portions of your home in the future, a temporary fix might make more sense.
– Limited Budget: Repairs are generally cheaper than complete seal replacements. If budget is a concern, repairs offer a more affordable short-term solution.
How to Prolong the Life of Insulated Glass Seals
While nothing lasts forever, several strategies can help extend the life of your insulated glass seals. Here are some proactive tips:
Regular Maintenance
Keep your windows clean. Dirt and grime can wear down seals and introduce opportunities for moisture to settle. Even simple cleaning routines can make a difference.
Professional Inspections
Consider routine inspections from professionals. They can spot warning signs that aren’t immediately visible to homeowners, making proactive interventions possible.
Avoid Harsh Chemicals
Some cleaning agents can damage seals. Always use gentle, pH-balanced cleaning solutions to prevent chemical-related degradation.
Check for Frame Integrity
Inspect window frames periodically for warping or damage that could stress the seals. If you find frame issues, address them promptly to mitigate risk to the seals.
Conclusion
Understanding aging and failure modes associated with insulated glass seals helps Ottawa homeowners make informed decisions about window repair and seal replacement. While the seals in your insulated glass units won’t last forever, regular inspections and maintenance can extend their life. Recognizing the signs of seal failure early can save on costs and keep your home energy efficient. With the right approach, you can ensure your windows continue to contribute to a comfortable and cost-effective home environment.
