What Are Those Black Streaks on My Roof?

“What are those black streaks on my roof?” isn’t the kind of question any homeowner is ever happy to ask. Unfortunately, those unpleasant black streaks are an all-too-common sight on Florida rooftops. When it comes to dealing with those unwelcome marks on your roof, there’s luckily plenty you can do. We’ve compiled a go-to guide to roof streaks below to help you understand where they come from and be proactive about preventing them from appearing again. To check out our tips on keeping your roof clear of black streaks and stains, read on below!

Black Streaks Explained

First, let’s get the “What are those black streaks on my roof?” question out of the way. Those unwelcome guests may look like straight-up dirt – or, more frighteningly, like mold or mildew. In reality, they’re actually black algae growth.

Black algae spores can be transported by animals, clothing, and the air itself – and they thrive in and cling to warm, humid environments. Since Florida itself is one big warm, humid environment, it’s no surprise that black algae growth is an ultra-common phenomenon among Tampa Bay homeowners.

Is It Dangerous

The short answer is no – and yes. To be blunt, the biggest threat that black algae presents on its own is ugliness. It’s not inherently harmful or toxic. That said, the real threat of black algae emerges once it spread on and clings to your roof. It can significantly damage your tiles, causing things like chips, breaks, and leaks. Black algae also helps fungi, mold, and mildew to grow on your roof – all of which can cause serious health issues down the line.

What to Do About It Now

Addressing the question of “What are those black streaks under my roof?” is only the beginning. The real objective is knowing what to do about it. Luckily, black algae can be removed fairly easily: all it takes is a simple soft wash to get your roof back into top shape. In order to avoid damaging your roof or injuring yourself during cleaning, we highly recommend calling in professionals to clean off the algae.

How to Prevent It Later

The most important thing you can do once you’ve addressed the black algae issue is taking measures to prevent it in the future. To ward off black algae for as long as possible, invest in tile roof sealing services. Sealing your tile roof is extremely important to prevent the growth of algae, mold, and mildew on it. It’s also the ultimate way to prevent cracking, fading, and general wear-and-tear for years. Be proactive about keeping your roof in great condition by looking into tile roof sealing with a company you can trust to do the job well.
“What are those black streaks on my roof?” The short answer: an opportunity to clean and seal your roof to prevent more significant damage down the line. Stay knowledgeable about what’s going on with your roof and be proactive about keeping it in great shape for years to come. To learn more about tile roof sealing, check out our free infographic.

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PAVER INSTALLATION

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