Black Mold On Slate Roof

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.

Black mold on slate roof.

Technically the black streaks on roofs are a form of algae known as gloeocapsa magma. This quality is what distinguishes slate as a suitable roofing material. Once turned into roofing material slate absorbs water and can naturally de laminate during the freeze and thaw cycles of winter. Commonly found in climates with warm humid summers it does no damage to the roofing but it certainly does looks bad.

The black streaks are also known as black algae or roof mold. At worst they can pose serious health risks. That s why if. 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.

Just because you can t see it however doesn t make it any less dangerous. At best slimy black mold deposits are an eyesore. What are those ugly black streaks on my roof. 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.

The most common type is known as gloeocapsa magma also known as blue green algae. Slate is one of the most durable and popular materials used in construction. Believe it or not those black streaks only appear on roofs in certain areas of the country. Those that tend to be the most humid furthermore they will only appear on the north side of the roof.