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5 Signs Your Roof Needs to Be Washed

Dark streaks, green moss, and black staining are more than just eyesores — they can shorten the life of your shingles. Here's what to look for and when to call a professional.

Your roof is one of the most important — and most overlooked — parts of your home. Most homeowners only think about it when something goes wrong. But waiting for a leak or visible damage before taking action can cost you far more in the long run. Here are five signs it is time to have your roof professionally cleaned.

1. Dark streaks running down the shingles. Those black or dark gray streaks you see on roofs are almost always caused by Gloeocapsa magma, a type of algae that feeds on the limestone filler in asphalt shingles. Left untreated, it spreads and accelerates shingle deterioration.

2. Green or black moss growth. Moss holds moisture against the surface of your shingles, which can cause them to lift, crack, and eventually allow water infiltration. Moss is especially common on north-facing slopes and areas shaded by trees.

3. White or gray lichen patches. Lichen is a combination of algae and fungus that bonds tightly to shingles. It is harder to remove than moss or algae and can pull granules off the surface when it is scraped or improperly treated.

4. Your roof looks noticeably darker than it used to. Even without obvious streaks or growth, a general darkening of your roof is a sign that biological matter is accumulating. This is especially visible on lighter-colored shingles.

5. Your neighbors' roofs look cleaner than yours. Algae and moss spores travel through the air and tend to affect homes in the same neighborhood around the same time. If the houses around you look clean and yours does not, it is a good indicator that growth has taken hold.

The good news is that professional soft washing can safely remove all of these issues without damaging your shingles. Blue Sky Surface Solutions uses low-pressure application with professional-grade cleaning solutions that are safe for your roof, your landscaping, and your family. Contact us today for a free estimate.

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Blue Sky Surface Solutions serves Carmel, Fishers, Westfield, Noblesville, and Zionsville, Indiana. Get a free estimate today.

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