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Why Are My Aluminium Windows Fading?

We all love for our homes to look great, especially when it comes to exterior paint. The perfect coat of paint can really make your house pop, adding to curb appeal and making you feel great. If you’ve owned your home for a while, you may have noticed that you have fading aluminium windows. Why does this happen? Let’s take a look. 

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Why Are My Aluminium Windows Fading?

We all love for our homes to look great, especially when it comes to exterior paint. The perfect coat of paint can really make your house pop, adding to curb appeal and making you feel great. If you’ve owned your home for a while, you may have noticed that you have fading aluminium windows. Why does this happen? Let’s take a look. 

Causes of Faded Windows

Your aluminium windows may simply be metal, or they may have been painted. Regardless of the situation, the cause of faded windows is the same – the sun. The sun is not just powerful enough to heat our planet but also causes virtually everything to fade over time. Specifically, it is the ultraviolet rays that cause fading by creating a chemical reaction with your window’s surface. 

While the sun is the major contributor to this process, there are other things at play as well. Factors such as moisture, pollution, and chemicals in the atmosphere can all accelerate fading windows. If you live near the sea, the salty air will increase the speed of fading as well. 

The Chemical Processes at Play

Understanding fading aluminium windows means understanding a bit of chemistry. Don’t worry – this won’t give you panicked memories of high school. 

Regardless of whether your aluminium windows are painted, powder coated, or anodized, the process of fading works similarly. The coating absorbs different wave lengths of light and reflect the others. The colours you see are the colours that are reflected. 

When sunlight is absorbed, the molecules gain energy, making them excited. They want to return to a more stable state. They do this by giving off heat, which is why joinery feels warm or hot in the sun. 

Since there is a lot of energy transfer occurring in this process, it sometimes causes chemical bonds between the molecules to break. Over time, these broken bonds accumulate, causing changes to the properties of the window coating. This causes faded windows. 

That Was a Bit Too Much Chemistry. Do You Have a Simpler Explanation?

Of course. Sunlight is absorbed or reflected by your windows depending on wavelength. The heat energy absorbed by the windows causes small chemical reactions. 

Sometimes, these reactions damage the window coating, whether it be paint or another type of finish. Over time, this results in you seeing fading aluminium windows. 

What Do I Do About Faded Windows?

The solution to fading aluminium windows is quite simple. You can restore them or recolour them. Restore your aluminium windows with our six-stage process that can also reduce the speed of future fading. If you’d rather focus on recolouring, our professionals do that too. Contact us today to find out how we can help make your aluminium windows look beautiful again. 

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