Black Mold On Slate Roof

Believe it or not those black streaks only appear on roofs in certain areas of the country.

Black mold on slate roof.

At worst they can pose serious health risks. Like all tile however slate can be prone to mildew and mold particularly if it is installed in a high moisture area like a bathroom a basement or a kitchen. Those that tend to be the most humid furthermore they will only appear on the north side of the roof. Slate is one of the most durable and popular materials used in construction.

Slate is a sedimentary rock with miniscule layers that easily cleave. That s why if. For this reason it works as well on a tiled roof as it does on a bathroom floor. What are those ugly black streaks on my roof.

Just because you can t see it however doesn t make it any less dangerous. Once turned into roofing material slate absorbs water and can naturally de laminate during the freeze and thaw cycles of winter. Technically the black streaks on roofs are a form of algae known as gloeocapsa magma. The black mold like stains and streaks that appear on roofs particularly light colored asphalt shingles is actually a blue green algae gloeocapsa magma.

Although these dark spots and ugly black streaks on your roof may look like dirt mildew soot or mold what they really are is algae. It s easy to let a mold problem sneak up on you on in out of the way places like the roof of your home. The black streaks are also known as black algae or roof mold. This quality is what distinguishes slate as a suitable roofing material.