Grey Roof Shingles Turning Black

See debris staining roof debris and.

Grey roof shingles turning black.

Leaves twigs and tree bark roof algae stains are seen in nearly eighty percent of the united states in various degrees. This is what makes those unattractive black streaks on your roof. Why does this algae appear to be black. Gloeocapsa has the ability to form a protective darkly pigmented outer coating that shields the algae from damaging uv rays.

Thus elimination of roof algae may reduce roof fungus and roof mildew accumulation. List of the pros of black roof shingles. The algae feed on the limestone in shingles. So will removing loose debris from your roof shingle deck and gutters.

Even the thermal energy with cloudy skies gets picked up with this installation. If you live in a humid area of the country you ve probably seen unsightly dark streaks on asphalt shingle roofs. The algae will worsen and become more noticeable each year trapping moisture and causing premature shingle aging and granule loss. When that happens it is generally caused by mildew algae mold or dirt stains.

Roof shingles are exposed to a lot of wear and tear as extreme heat sun wind and precipitation come into contact with them. It is not uncommon for roof shingles to turn black over time. Though often attributed to an accumulation of dirt defective shingles mold or mildew. Black roof shingles do an excellent job of absorbing the heat from the sun each day.

The color helps to retain more heat in the home. Black brown or gray stains on roofing products due to debris left on the roof surface such as piles of leaves and organic waste from nearby trees. The most common culprit is actually a blue green algae known as gloeocapsa magmathat is spread by airborne spores.