Some of this growth including the stains from algae spores.
Romoving stains off of roof shingles.
These are tough stains to completely remove as the algae is embedded deep in the shingle grit.
If your household water pressure isn t enough to generate the proper nozzle pressure at the jets the manufacturer recommends boosting it.
One day you may notice that your roof is turning black or fungus is spreading across of it.
Remove black stains from roof shingles to preserve the appearance of your home s roof.
Oxygen bleach lightens stains as well and is less harmful to the environment but it doesn t produce as immediate or dramatic an effect as chlorine bleach.
It is important that the roof be wet when the cleaning mixture is applied or it may evaporate before it has a chance to work.
How to clean roof shingles.
How to remove and prevent black algae stains on asphalt shingle roofs black stains on an asphalt roof caused by algae.
Unlike black algae stains which come off immediately with the rinse phase of the cleaning dead lichen and moss will require a few heavy rains to finish rinsing off the roof.
It could take awhile but rest assured that lichen and most moss situations once dead will eventually dislodge and rinse off the roof thanks to mother nature.
If you live in a humid area of the country you ve probably seen unsightly dark streaks on asphalt shingle roofs.
Proper cleaning is an important step in roof maintenance.
A mixture of trisodium phosphate tsp bleach and water will also remove stains.
I had to get out the pressure washer to really clean the roof but needed to use caution to not damage it.