Spray the cleaner on a section of roof and let it sit for about 15 minutes.
How to clean roof shingles from the ground.
That way you always stand on dry surface and reduce the chance of slipping.
After spraying the roof with the mixture allow it to sit on the surface for 15 to 20 minutes before rinsing thoroughly with clean water.
But of course if the roof is really bad i may have to walk the roof with a power washer but set at a very low pressure about 400 psi about 12 inches away.
This can be done either while walking the roof or some hi tech equipment i have i can actually spray it from the ground without ever getting on the roof.
It can also be referred to as low pressure or soft washing.
This is the best way to clean a roof if you have asphalt shingles.
Do it yourself and save big bucks.
One day you may notice that your roof is turning black or fungus is spreading across of it.
Proper cleaning is an important step in roof maintenance.
Cleaning roofs is slippery work.
But once the algicide wears off your roof hosts an all you can eat buffet for the neighborhood algae spores.
Ignore your landscape and surrounding areas which can be harmed by the bleach solution.
Access pressurewash uses what s is referred to as a non pressure roof cleaning method.
Some of this growth including the stains from algae spores.
So it pays to clean your shingles as soon as you spot algae growth.
How to clean roof shingles.