Even with the most attractive landscaping and modern siding, dark streaks and marks on your roof can ruin a home’s curb appeal. Many homeowners that notice these marks do not know what causes them, which makes it difficult to prevent them. Below, the expert roofing contractors from Dan Williams Roofing, based in Lorain, OH, outline everything you should know about these streaks.

Roofing Contractor Explains Streaks on Your Home’s Roof

What Causes Them?

Many people believe that streaks are caused by an accumulation of dirt, mold, or broken shingles. However, the real culprits behind these markings are algae. When these small organisms first begin to accumulate on the roof, they may appear blue-green. However, as they die and decay, they become black and are much more noticeable from the ground. Not only will they impact your home’s external appearance, but they may also retain moisture and damage the roof.

How Can You Treat & Prevent Them?

Once you notice these streaks, you’ll need to have your roof thoroughly cleaned. Most professional contractors will know how to use a combination of chemicals to remove these organisms without damaging your roof. Plus, their specialized equipment will allow them to be as efficient and effective as possible.

To prevent future algae problems, consider installing strips of copper or galvanized sheet metal along each side of the roof. These materials are toxic to algae, which means they can eliminate the organisms before they have a chance to grow.

If you notice dark streaks on your roof or you want to prevent them, don’t hesitate to reach out to the experts at Dan Williams Roofing. With more than 18 years of experience, their team of roofing contractors can ensure your roof is beautiful and protected once again. As a fully licensed, bonded, and insured residential roofing company, these professionals offer unparalleled service for any roof repair. To receive a free estimate, call today at (440) 282-6006. You can also find more information on their website.