Moss can be harmful to any building material on your house, as it feeds on the surface, gradually breaking down its color and causing deeper damage over time. Even more concerning, moss creates a habitat for fungi, which are far more destructive. Fungi act as powerful decomposers, accelerating the deterioration of materials.

Lichen, resembling green algae, thrives in moist and warm conditions, growing on a variety of surfaces including roof tiles, walls, and other areas of your home. If left untreated, it will continue to spread, gradually damaging these surfaces and potentially affecting the integrity of your home.

Gloeocapsa magma is an algae that commonly grows on composition shingles, creating very unsightly streaks and stains. The presence and extent of Gloeocapsa magma on a roof is often used as an indicator of its age and condition.

The primary cause of algae growth on siding is water. Humidity and excessive rain create ideal conditions for algae to thrive. These conditions are even more favorable if your home is situated on a shady lot, where it doesn't receive regular direct sunlight to help dry off the exterior.

Mold and mildew on your siding thrive when the ground around your home remains consistently wet. Poor drainage, a faulty gutter system, and leaky faucets can all cause water to pool near your foundation, creating an environment that both mold and mildew love.