Roof Cleaning Services in St. Cloud, MN

Those black streaks you see on your shingles are likely caused by a type of algae called gloeocapsa magma. It is also commonly referred to as blue-green or black algae. This algae is a solid deposit of spores and dirt that can lead to more significant issues if left untreated.  

You can see the gloescapsa magma streaking on this roof before treatment. 

Never pressure wash your roof! One wrong angle can damage your shingles and lead to costly repairs. Instead, our soft washing technique effectively eliminates contaminants without causing damage. We also use a biodegradable solution that safely and effectively targets and eliminates all traces of mold and algae. We will take precautions to protect any vegetation prior to application. 

A small amount of moss is relatively harmless, but if left unattended, it can grow and eventually damage your asphalt shingles. Therefore, moss should be removed to prevent more severe problems. Algae fosters the growth of mold, which can lead to very serious issues. You should also remove algae quickly.

Although roof cleaning services may not be as popular in Minnesota as in southern states, the same mold and algae thrive here. They are especially noticeable on surfaces that receive less sunlight, like those facing north and west.