Is your home’s roof covered in unsightly dark stains or streaks? Did you think your only option was costly roof replacement? You’ll be very happy to know that we can make your roof look like new again for just a fraction of the cost of a new roof! Have you ever wondered what causes those unsightly black stains and streaks on your home’s asphalt or fiberglass shingle roof? Well, you might be surprised to find out that it’s not an accumulation of dirt, but rather a specific type of blue-green algae that grows in humid parts of the United States known as Gloeocapsa magma. The algae is spread by airborne spores and targets asphalt and fiberglass shingles because they are made with limestone, an organic material the algae consumes. The algae thrives in shaded areas, particularly on the northern and western side of your home’s roof. Not only can the algae affect the aesthetic and resale value of your home; if left untreated, it will continue to grow and hold moisture, which can result in the roof aging prematurely, rotting, and/or losing protective granules. This in turn can affect the roof’s ability to reflect ultra-violet rays from the sun because the algae absorbs heat, which can make your home warmer and increase cooling costs. Rotting wood can also attract animals who may be able to get through your home’s roof or fascia board and nest in your home’s attic. In addition, the algae can be a breeding ground for mold, which can pose a health danger for those who have respiratory problems or allergies. The spores can get into your air conditioning system and can even be tracked in to your home from your driveway.