Protecting Your Roof from Black Spots & Streaks

Why is My Roof Discolored?




Have you noticed dark black streaks or spots on your roof and are wondering what the heck that is? Is it mildew? Soot? Mold? Can it be removed? Do I need a new roof? The good news is that this is common problem and easily treatable. 




open house window with house plants

What Is Gloeocapsa Magma?

Gloeocapsa Magma, sometimes referred to as “black mold,” is an algae-type of bacteria responsible for causing black stains and streaks on roofs. It feeds off moisture and “organic bacteria food,” munching on limestone filler often found in shingles. After accumulating over time, black stains begin to appear. Causes of Gloeocapsa Magma include:

  1. Humidity
  2. Fiberglass shingles with limestone as a filler (in the asphalt). These type singles hold moisture for longer periods of time. This type of bacteria is airborne. It can cause substantial destruction to your roof causing shingle decay, which shortens the lifespan of your roof.



Gloeocapsa Magma Treatment

A technique of low pressure washing (soft washing) along with an appropriate amount of a solution, such as Sodium Hypochlorite or Copper Sulfate, will address and kill the bacteria. Use extra caution if you go the DIY route. When not used properly, DIY options can kill your vegetation. Leave it to the professionals!


The Importance of Roof Cleaning

In addition to removing Gloeocapsa Magma, professional roof cleaning has a number of benefits, including:

  • Prevent damage to roof shingles
  • Improved curb appeal
  • Extended life of your roof

Preventing Future Growth

Don’t let Gloeocapsa Magma find it’s way back to your home! Instead, follow these steps to prevent future Gloeocapsa Magma growth:

  1. Schedule an appointment with a reputable company such as Heavenly Sunshine Property Services to remove existing debris
  2. Ensure proper airflow to your roof
  3. Get your gutters cleaned – another service offered by Heavenly Sunshine Property Services

If you are fortunate and do not have to deal with Gloeocapsa Magma, awesome! Then use this word next time you play Scrabble or Words with Friends. If you do, then call Heavenly Sunshine Property Services for a free estimate!