Why Does Exterior Paint Fade?

Every exterior paint fades eventually, but some homes look tired after a few years while others hold their color much longer. Understanding why fading happens helps you choose colors and products that last.

Sunlight Is the Main Cause

Ultraviolet (UV) light from the sun breaks down two parts of paint: the pigments that create color and the binder that holds the paint film together. As pigments break down, color looks washed out. As the binder breaks down, the surface becomes chalky, and that powdery layer scatters light and makes the color look even duller.

Atlanta gets intense sun for much of the year, so south- and west-facing walls usually fade first. It's common to see a clear difference between a sunny wall and a shaded one on the same house.

Some Colors Fade Faster

Color choice has a big effect on fading:

• Bright reds, yellows, oranges, and some blues and greens often rely on organic pigments that are less UV-resistant.
• Earth tones, grays, whites, and neutrals often use inorganic pigments, like iron oxides, that hold up much better.
• Deep colors show fading more obviously because the change from the original shade is easier to see.

If you love a bold color, ask about its fade resistance and plan on refreshing it sooner, especially on a sunny front door or shutters.

Paint Quality Matters

Higher-quality exterior paints use 100% acrylic binders and better pigments, which resist UV damage and chalking longer. Inexpensive paints often use lower-grade binders and more filler, so they chalk and fade faster. Over the life of the job, the difference in color retention can be several years.

Sheen Helps, Too

Flat finishes tend to show fading and chalking sooner. Satin and low-luster exterior finishes have a tighter surface that resists dirt and weathering a little better. That's one reason many exterior siding paints are satin.

Is It Fading or Chalking?

Rub your hand across the siding. If a powdery residue comes off, the paint is chalking. The color may look better after washing, but chalking means the paint film is breaking down. Before repainting, the chalk needs to be cleaned off and sometimes sealed with a primer so new paint can bond.

How to Keep Color Longer

• Choose quality 100% acrylic exterior paint
• Favor fade-resistant colors on sun-exposed walls and accents
• Use two full coats for proper film thickness
• Wash the exterior periodically to remove dirt and pollen
• Repaint before the coating breaks down completely

The STRIPES Takeaway

Fading is caused mostly by UV light, and Atlanta's sun speeds it up. Pick quality paint and fade-resistant colors, especially for sunny walls, and keep the surface clean. Your color will stay true longer, and the next repaint will be easier.

Planning an Exterior Painting Project in Atlanta?

STRIPES PAINTING CO. paints and protects home exteriors throughout the Atlanta area, with careful prep and quality products. Contact us to schedule a free estimate.

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