Black Algae On Siding

Lichen is a complex organism formed by a combination of fungus and algae.

Black algae on siding. Clean siding without any scrubbing. Green algae black mold and moss begin to die off on contact. To prevent stains you will need to clean your siding thoroughly to kill the algae and prevent it from returning. The black stains on the vinyl siding shown at left may be a fungus or a black agae.

Black algae can grow there as well as in areas with direct sunlight due to its protective coating. A microscopy lab examination of a sample from this surface would be needed to know for sure. You re most likely to see green stains on siding that is inadequately ventilated. Wet and forget is as simple as spraying your outdoor surface and leaving it.

Also known as artillery or cannonball fungus sphaerobolus it uses internal water pressure to forcefully fire its spores similar to seeds up to 20 feet away. The combination of the wind and the rain rinses and scrubs your surfaces clean over time. By the growth pattern we think this is almost certainly a dark colored algae. Green stainsare almost always the result of algae or moss.

The fungus sets its sights on bright areas so that means it will aim for any pale surface that reflects light such as the siding on your house. Fortunately algae on vinyl siding will not affect the function of your siding or cause it decompose. Usually appearing as a scaly growth it can grow on any type of siding. Will algae harm your siding.

Yellow stainsmean you probably have damaged insulation or deteriorating sheathing behind the siding. Green stains clean up in 1 2 weeks black stains and moss clean up in 2 or more months.