Have you ever noticed dark black streaks on roofs?

Roof Stains show up in more places than ever before!  It used to be isolated to only the South Eastern United States, but is now increasingly more common the entire US.  

The Black Stains that form in spots, then streaks, then sheets are the calling card of roof shingle algae (often called roof mold)

Stay tuned as we explore the history and reality of this new element of home cleaning.

2 thoughts on “Black Streaked Roof Shingles”

  1. June S says:

    I had noticed black triangles on my neighbors roof but could never figure out what they were.

  2. john smith says:

    I noticed the stains on roofs here in Texas and never considered that it was mold.