What Is the White Residue on Your Siding?

Does it feel chalky when you run your hand along the surface?

Wondering if this is just dirt—or a sign of something more serious?

You're not alone! Many homeowners in Ann Arbor begin to notice this issue as their home's exterior ages, especially after years of harsh Michigan weather. This powdery substance is known as chalking, and it’s often one of the earliest signs that your paint is breaking down.

What is Chalking?

Chalking happens when the paint on your home’s siding begins to degrade, typically from prolonged 
exposure to sunlight, wind, and moisture. The result is a white, powdery film that rubs off easily. While it may seem harmless, chalking means your home’s protective paint barrier is weakening, leaving your siding more vulnerable to the elements.

Not only does this impact your curb appeal, but over time, it can also lead to deeper issues like moisture damage or wood rot. Addressing chalking early with a painting company in Ann Arbor can help you avoid expensive repairs down the line.

Learn more about the signs it’s time to repaint your home’s exterior in our latest article. 

Time to Repaint? Call the Trusted Painting Company in Ann Arbor

We specialize in helping Ann Arbor homeowners restore their home’s beauty and protection with high-quality exterior painting services. If you're seeing signs of chalking, fading, or peeling—don’t wait until the damage spreads.

Let our experienced team assess your home and recommend the best next steps. We use top-tier products designed for Michigan’s climate to ensure a long-lasting, beautiful finish.

📞 Call us today at 734-995-2646 or submit a contact form to schedule your consultation. Your home deserves a fresh start—and we’re here to help make it happen