Mold, Mildew & Algae Growth On Your Home’s Exterior

Recognizing The Warning Signs

If you’ve spotted mold and mildew on the outside of your house, it’s more than just a cosmetic concern. In Ohio’s climate, warm summers, damp springs and long winters create the perfect environment for unwanted growth. These organisms thrive anywhere moisture lingers, and once they take root, they can be difficult to remove.

The most common symptoms include:

• Dark streaks or patches that don’t wash away with rain
• Black mold on the outside of the house, particularly around shaded areas, gutters, and trim
• Green or brown algae on siding or spreading across north-facing walls
• A musty, unpleasant odor when standing near affected areas
• Persistent staining that keeps reappearing even after pressure washing

If you notice one or more of these issues, it’s a signal that your home’s exterior is losing its ability to resist moisture and protect itself from organic growth.

Why Mold, Mildew & Algae Are More Than Just Cosmetic

While many homeowners view mildew on a house as only a curb appeal issue, the risks run much deeper. Mold and algae aren’t passive. They feed on porous surfaces, breaking them down over time.

Unchecked, these growths can cause:

• Surface deterioration as fungi break down paint or siding
• Moisture intrusion, leading to hidden water damage and costly repairs
• Weakened materials, which can cause siding to warp or crack
• Health risks if spores spread indoors, particularly for those with allergies or respiratory issues
• Lower property value as visible staining makes a home appear poorly maintained

Routine pressure washing may temporarily clean mold on the exterior of your house, but it doesn’t solve the root problem. Without a protective barrier, growth returns season after season, trapping you in a frustrating maintenance cycle.

The Rhino Shield Ohio Solution

Traditional paint simply can’t stand up to Ohio’s moisture cycles and fluctuating weather. That’s why Rhino Shield developed its advanced ceramic exterior coating — a high-performance alternative engineered to last.

Here’s how Rhino Shield protects your home from mold, mildew, and algae:

• Moisture barrier protection — Creates a watertight shield to block the damp conditions mold and mildew need to thrive.
• Mildew and algae resistance — Proprietary formulas actively resist organic growth, keeping surfaces cleaner for years.
• 8–10x thicker than paint — Fills cracks and pores where spores typically hide and spread.
• UV resistance — Prevents fading and breakdown caused by Ohio’s sun and temperature swings.
• 25-year transferable warranty — A long-term guarantee that your investment is built to last.

Because Rhino Shield is a ceramic coating, not paint, it doesn’t just cover up surface issues. It transforms your home’s exterior into a resilient, protective layer designed to outlast and outperform traditional paint jobs.

More Than Protection — Peace Of Mind

At Rhino Shield Ohio, we know homeowners are tired of battling recurring mildew on houses and algae on siding. That’s why we stand by our promise: Never Paint Your Home Again.

Our coating system doesn’t just improve appearance — it gives you peace of mind knowing your home is protected from Ohio’s toughest environmental challenges.

Whether you’re concerned about mold on the outside of your house or want to stop algae from spreading across your siding, Rhino Shield delivers long-lasting relief from the paint cycle.

Take The Smart Step Toward Lasting Defense

Don’t let mold, mildew and algae quietly erode your home’s exterior. With Rhino Shield Ohio’s ceramic coating system, you can restore beauty, strengthen protection and safeguard your investment for decades.

Call Rhino Shield Ohio today to schedule your free inspection and see how our advanced coating can keep your home clean, strong and mold-free for the next 25 years.