If you've noticed green stains on the siding of your home, you're not alone. Many homeowners in Clayton, NC, and surrounding areas like Garner, Raleigh, and Fuquay-Varina often see this problem. But what exactly is the green stuff?

The answer is usually algae, moss, or mildew—and it can be more than just an eyesore. These organisms thrive in moist environments and typically grow on shaded sides of homes, especially in humid regions like North Carolina. Over time, they can damage siding, lower your property’s curb appeal, and even lead to more serious issues like wood rot.