Why Your Roof Keeps Growing Moss (and What to Do About It)

The Problem: Moss Keeps Coming Back, No Matter What You Do
If you’ve scrubbed, sprayed, or even power-washed your roof only to see that fuzzy green moss come creeping back… you’re not alone. Moss growth on shingles is a common issue in Connecticut and other moisture-prone areas, especially on older roofs or those with heavy tree cover.

But here’s the thing: if moss keeps coming back, the issue isn’t just what’s on your roof — it’s likely what’s under it too.

Why Moss Loves Your Roof
Moss doesn’t just grow anywhere. It needs the right environment:

• Moisture: Water gets trapped under debris or in shingle layers.
• Shade: Lack of sunlight, especially on north-facing slopes, creates a damp, cool environment.
• Poor Ventilation: Without enough airflow in your attic, warm moist air gets trapped, raising humidity from below.

That’s a recipe for moss. Once it takes hold, it can lift shingles, trap more moisture, and accelerate the wear on your roof. Even worse? It often grows where you can’t see until a leak appears.

Cleaning Isn’t a Long-Term Fix
You can remove moss manually, but it’s like putting a Band-Aid on a leak. Without addressing the root cause, excess moisture and shade, it’s going to come back. And repeated cleanings can actually damage old or brittle shingles, reducing the lifespan of your roof even more.

The Real Fix: Roofing Designed to Resist Moss
A roof replacement with proper materials and ventilation can help prevent moss from returning for good. Here's how:

• New Shingles, Better Materials: Shingles like IKO Dynasty are algae-resistant and built to stand up to our damp New England climate.
• Ventilation Upgrades: Modern ridge vents and attic ventilation help keep your roof dry from the inside out!
• Tree Trimming and Structural Adjustments: We can advise on shade-reducing strategies to give your roof the sun it needs.

We’ve Seen It Work
We’ve helped plenty of homeowners trade in their mossy roofs for clean, long-lasting protection. The difference isn’t just visual, it’s structural. A dry, well-ventilated roof lasts longer, performs better, and keeps your home safe from hidden water damage.

Still Seeing Green? Let’s Talk.
If moss keeps coming back, it’s trying to tell you something. Let’s take a look! No pressure, no guessing. Just honest feedback and solutions that actually last.

Schedule your consultation with Brown Roofing today!