If it is slimy or any sort of residue comes off on your hand repeat the above steps.
Mold or fungis on roof.
Characterized by its black green hue algae growth can eat away at shingles and eventually lead to roof rot.
This can seep into the wood of shakes and shingles and lead to roof rot.
Mold damage on roofs 1.
You must let the roof dry before a second application of mix.
Easily recognizable because.
Allow the roof to dry thoroughly.
It is easily spread and causes those colorful stains on so many roofs.
Unlike algae and moss which in their proper settings are healthy natural flora mold is a more clear cut.
It needs heat moisture and nutrients to grow.
A dirty roof is actually full of more than just dirt.
The more the moss spreads over your roof the more it will add to your moisture problem on your roof.
Mold is one of the most problematic fungi there is for a homeowner.
The black mold like stains and streaks that appear on roofs particularly light colored asphalt shingles is actually a blue green algae gloeocapsa magma.
A second application of cleaner will not have its full effect on a damp surface.
Most dirty roofs are covered in various molds algae fungus and lichen.
Known as black algae or roof mold gloeocapsa magma is usually blamed on dirt accumulation mold and mildew or defective shingles.
If your roof was simply covered in dust it would be very easy to clean but due to the presence of the algae mold and so forth cleaning a roof becomes much more involved.
It s actually just a blue green algae spread by airborne spores.