What’s That Green Stuff? How to Safely Remove Algae and Mold
Ever noticed green or black patches creeping across your siding, patio, or fence? That’s not just dirt—it’s algae, mold, or mildew. And if left untreated, it can stain your surfaces permanently or even degrade them over time.
Let’s break down what it is, why it forms, and how to remove it safely.
What Is It, Exactly?
Algae: A green, slimy growth that thrives in moist, shaded areas—especially on siding, driveways, and roofs.
Mold & Mildew: Fungi that appear as black, gray, or green patches, often on wood, concrete, or vinyl surfaces.
Lichen: A crusty, stubborn combo of fungus and algae—typically found on roofs, fences, and stone.
Why It’s a Problem
☣️ Health Risk: Mold spores can become airborne and aggravate allergies or asthma.
🧱 Surface Damage: These organisms break down paint, wood, and even brick over time.
😬 Curb Appeal Killer: It makes your home or business look dirty and neglected.
How to Remove It Safely
❌ Don’t:
Use high-pressure settings on wood or vinyl—it can cause damage.
Scrub with bleach without proper dilution—it can stain or kill nearby plants.
✅ Do:
Use a low-pressure soft wash with specially formulated cleaning agents.
Rinse thoroughly to prevent residue.
Let the pros assess whether additional treatments (like sealing or re-painting) are needed.
Prevention Tips
Strategy | Benefit |
|---|---|
Trim back shrubs & trees | Reduces shade and moisture buildup |
Clean gutters regularly | Prevents overflow and damp walls |
Annual pressure washing | Keeps algae and mold from returning |
We Make Green Go Away
At Extreme Clean Spokane, we specialize in safely removing mold, mildew, and algae from all exterior surfaces. With eco-friendly solutions and expert techniques, we get rid of the green—and leave your place looking clean.
