I recently noticed black algae stains on my asphalt roof so this would be a good guide to refer to cleaning it off.
How to clean roof shingles stains.
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One day you may notice that your roof is turning black or fungus is spreading across of it.
But once the algicide wears off your roof hosts an all you can eat buffet for the neighborhood algae spores.
It s great that there s chemical cleaner that can be used to remove black algea from asphalt shingles.
You can choose to clean only the black areas of the shingles but this may leave an uneven color to the roof.
How to clean roof shingles.
Clean your roof on a cloudy day to prevent the cleaning solution from drying too quickly.
I had to get out the pressure washer to really clean the roof but needed to use caution to not damage it.
Apply the cleaning agent to the roof.
Not to mention the danger of using a pressure washer on a pitched roof.
These are tough stains to completely remove as the algae is embedded deep in the shingle grit.
Proper cleaning is an important step in roof maintenance.
Using shingles that have been treated with algicide keeps the growth at bay for about 10 years thus the 10 year algae warranty.
After clambering out onto your roof spray the asphalt shingles you wish to clean.
So it pays to clean your shingles as soon as you spot algae growth.
Do it yourself and save big bucks.
Generally you ll need to point the nozzle of the spraying device toward the shingle you wish to clean then depress the handle.
Cleaning the entire roof is recommended for an even appearance.
Some of this growth including the stains from algae spores.
Not only is using a power washer pretty much guaranteed to void any roof warranties it can damage shingles by causing the protective coating or even the shingles themselves to come off.
Cleaning the roof yourself.