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What Causes Discoloration in Windows?

It’s not uncommon for windows to show signs of discoloration over time. Understanding what causes this discoloration can help you take proactive measures to maintain your windows’ integrity and appearance. Continue reading to learn more about the common culprits behind window discoloration.

What Causes Discoloration in Windows?

The Impact of UV Light Exposure

One primary culprit behind window discoloration is prolonged exposure to UV light. In areas where sunlight can be intense, UV rays can cause significant fading and discoloration to window frames and even affect the clarity of the glass itself. This phenomenon is not just limited to aesthetic degradation; it can also weaken the window’s structure over time, reducing its energy efficiency and effectiveness as a barrier to the outside elements.

Environmental Factors and Pollution

Beyond the sun’s effects, environmental factors play a significant role in window discoloration. Pollutants and contaminants in the air, common in both urban and rural settings, can adhere to the surface of your windows, leading to a grimy layer that not only discolors but also damages the window material. Acid rain, a byproduct of environmental pollution, can further exacerbate this issue, causing etching and staining on the glass that is tough to remove through regular cleaning.

Inferior Window Materials

The quality of materials used in your windows can also lead to discoloration. Lower-quality vinyl or plastic window frames are particularly susceptible to UV damage and can yellow over time. Similarly, poor-quality glass may lose its clarity or become foggy, compromising the window’s appearance and visibility. This underscores the importance of choosing high-quality windows from reputable manufacturers.

Solution to Severe Discoloration

Recognizing these root causes of window discoloration is the first step toward addressing the issue. For severe cases, window replacement emerges as a compelling solution. Opting for modern windows with UV-resistant coatings and made from high-quality, durable materials can significantly reduce the risk of discoloration. 

Renewal by Andersen® of Rapid City offers a wide range of window replacement options specifically designed to withstand the unique challenges of the South Dakota climate. From advanced glass options that minimize UV exposure to frames that resist various elements, these features can enhance your home’s aesthetic appeal and overall value. Call us at (605) 341-7831 or fill out our contact form to request a quote.

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May 10

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