Double pane windows have become increasingly popular in residential and commercial buildings due to their energy-efficient properties and ability to reduce noise transmission. One of the main advantages of double pane windows is their ability to block harmful ultraviolet (UV) rays, which can cause fading of furniture, flooring, and upholstery, as well as damage to skin and eyes. However, over time, the effectiveness of the UV protection on double pane windows may degrade. In this article, we will discuss why and how the UV protection on double pane windows can degrade and what can be done to prevent or fix this issue.
Understanding UV Protection in Double Pane Windows
UV protection in double pane windows is typically achieved through the use of Low-E (low emissivity) coatings. These coatings are applied to the glass surface during the manufacturing process and help to reflect a significant portion of the UV radiation that comes into contact with the windows. This reduces the amount of UV rays that penetrate the glass and enter the building.
Reasons for UV Protection Degrading
Unfortunately, even with the advanced technology used in manufacturing double pane windows, the UV protection can degrade over time. Several factors contribute to this degradation:
- Exposure to sunlight: Constant exposure to sunlight can gradually break down the UV protection on double pane windows. UV rays are known to be highly energetic, and their continual bombardment can cause the protective coating to deteriorate.
- Environmental factors: Environmental factors such as temperature fluctuations, humidity, and pollutants in the air can also have a negative impact on the UV protection of double pane windows. These factors can accelerate the breakdown of the protective coating, thereby reducing its effectiveness.
Effects of Degrading UV Protection
When the UV protection on double pane windows degrades, the potential consequences can include:
- Fading of interior furnishings: UV radiation is a major contributor to furniture, flooring, and upholstery fading. When the UV protection on double pane windows weakens, more UV rays pass through the glass, causing accelerated fading and deterioration of interior materials.
- Health risks: UV rays can be harmful to human health. Prolonged exposure to UV radiation can lead to skin cancer, premature aging, and damage to the eyes. Degrading UV protection increases the risk of these health issues, especially for individuals who spend a significant amount of time near windows.
Preventing and Fixing Degrading UV Protection
Although the UV protection on double pane windows can degrade over time, there are preventive measures and solutions to address this issue:
- Regular maintenance: Proper and regular maintenance of double pane windows can help extend the lifespan of the UV protection. Cleaning the glass surfaces with non-abrasive cleaners, avoiding harsh chemicals, and gently wiping the glass can help preserve the integrity of the protective coating.
- Professional inspections: Engaging professionals for periodic inspections of the windows can help identify any signs of degradation or damage to the UV protection. They can recommend necessary repairs or replacements to ensure the continued effectiveness of the UV protection.
- Window film application: If the double pane windows have experienced significant degradation of UV protection, applying specialized window films can help restore and enhance the UV blocking capabilities. These films can be applied to the interior surface of the glass, offering an additional layer of protection against harmful UV rays.
While double pane windows provide many benefits, including UV protection, it is important to understand that this protection can degrade over time. Factors such as sunlight exposure and environmental conditions contribute to the breakdown of the protective coating. Regular maintenance, professional inspections, and the application of window films can help prevent or fix the degradation of the UV protection, ensuring the continued protection of interior furnishings and the health of building occupants.