Signature Exteriors

Visible algae on the roof of a suburban home

How to Clean & Prevent Algae on Your Roof

It’s that time of year again – the weather is getting warmer, and the rain is starting to pick up. And with that, comes the growth of algae on your roof. Algae can form for various reasons, including humidity, heat, and even nutrient-rich runoff from your gutters. While it may not seem like a big deal, algae can actually cause severe damage to your roof if left unchecked.

What Does Roof Algae Look Like?

One of the most common questions we get from homeowners is “What is that black stuff on my roof?” In most cases, that black stuff is actually a type of algae called Gloeocapsa. Roof algae is a common problem in areas with high humidity, and it can cause premature aging and discoloration of shingles. On top of being unsightly and difficult to remove, roof algae can reduce the lifespan of your shingles and impair their ability to reflect sunlight.

Cleaning Algae Off a Roof

If you’re dealing with algae on your roof, don’t despair! You can take a few simple steps to clean it up and prevent it from coming back.

First, use a garden hose to spray down the affected area. This will help loosen the algae and make it easier to remove.

Next, the team at Signature Exteriors recommends using Spray & Forget Roof Cleaner as a safer and more effective alternative to abrasive tools for removing algae, mildew, fungus, and lichen from roofs, siding, and other exterior surfaces. Unlike power washing or brushing techniques that can damage your home’s exterior, Spray & Forget is biodegradable and non-corrosive so it won’t harm your landscaping or paint job. Plus, it doesn’t require any rinsing so you’re done in just minutes!

Preventing Roof Algae

Finally, take steps to prevent the algae from coming back. Make sure your gutters are clean and free of debris so they’re not contributing to the problem. Consider installing gutter guards to keep leaves and other debris out.

In addition, trim back any trees or shrubs that are touching your roof. Algae love shady, humid conditions, so giving them more sunlight will help discourage growth.

By taking these simple steps, you can keep your roof looking good and prevent serious damage from algae.

Call a Professional

If you have more algae than you can handle, or you’re not comfortable working on your roof, call a professional for help. Luckily, the professionals at Signature Exteriors can help. We specialize in cleaning roofs and providing preventative services to keep your roof looking its best. We use the latest technology and equipment to quickly and safely remove algae, and our team of experienced technicians will work diligently to ensure that your roof is clean and protected from future damage. Contact us today to schedule a consultation, and we will be happy to answer any questions you may have.

Leave a Comment

Your email address will not be published.