How Sunlight Affects Exterior Paint?


One of the most commonly seen impacts of sunlight on your home’s exterior is the fading of the color over time. Sunlight contains powerful UV rays that react with the pigments in the paint, slowly bleaching them out. This is most visible in dark or brightly colored paints, as the color will lose intensity slowly.


Over time UV rays from sunlight exposure can cause the paint on your home to fade. The finish of your paint job is designed to protect the paint, but as the finish is repeatedly subject to harsh and penetrating UV rays, it breaks down and exposes the paint. Once the protective finish has been broken down, the paint is no longer protected.

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Frequently Asked Questions

Is sunlight bad for paint?

It's best to avoid painting in direct sunlight, especially during the hot summer months. The heat from the sun's rays cause the paint to dry to quickly, which can cause a number of problems – brush marks, lap marks, inadequate adhesion. Move around the house to avoid the sun as much as possible.

How does the sun affect the exterior of a home?

Bright sunshine can really make your home's exterior pop, but as time passes, the sun isn't always so kind to your home. In fact, extended sun exposure can seriously damage your home's exterior.

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