Removing and Preventing Roof Algae

There are certain places in the country that have a warm and humid weather. Houses that are situated in these places can sometimes experience having black stains on their roof. These stains are usually very unattractive and can even result to roof damage.

Usually, these black stains are a type of blue-green algae, which is also known as gleocapsa magma. Though some people may think that this algae will cause no harm on their roof, it's actually eating away components of your roof's shingles and rapidly shortening its life cycle. There's no need for you to worry, though. These blue-green algae on your roof can be removed the same way roof mold is treated.

One of the easiest and cheapest way to remove the stains is to use a mixture of 50 percent water and 50 percent bleach. Though this may take time especially for large roofs, it is better than using a pressure washer this equipment can damage roof shingles if used incorrectly.

Keep in mind though, this mixture is not permanent solution, so there's a chance that the algae will grow back in the future. If the black stains are a major problem, your roof may already be at the end of its lifespan. If so, it may be time for you to set a budget for roof replacement.