Using shingles that have been treated with algicide keeps the growth at bay for about 10 years thus the 10 year algae warranty.
How do i clean my shingle roof.
One part of proper roof maintenance is cleaning the shingles which you can do yourself in less than an hour.
While an occasional cleaning might not harm your roof repeated use of harsh chemicals or the erosive effects of pressure washing can damage or shorten the life of asphalt shingles.
Apply a storebought or diy cleaning solution to remove the moss.
With most good cleaners that s all you need to do.
So it pays to clean your shingles as soon as you spot algae growth.
Do it yourself and save big bucks.
Video on how to clean softwash an asphalt shingle roof including where to find.
Start at the lower portion of the roof moving up as you clean each lower section.
The best way to clean a roof is to use a roof cleaning chemical and let it sit for awhile.
Every wonder what causes those ugly black streaks and stains on your roof.
Additionally don t clean your asphalt tiles on days when the cleaning agent could freeze.
Therefore clean asphalt shingles on cloudy days.
Cleaning roofs is slippery work.
In other words only clean your asphalt shingles on days when the temperature will remain above 32 degrees fahrenheit zero degrees celsius.
Not to mention using a pressure washer you will remove most of those very important granular s small stones that make up a shingle.
Spray the cleaner on a section of roof and let it sit for about 15 minutes.
Clean your roof on a sunny day which will cause the bleach solution to evaporate too quickly limiting its cleansing effects.
Needless to say that shingle will fly right off your roof.
There are several products on the market specifically designed to remove algae stains from roofs such as wet forget outdoor.
The high powered water jets can damage shingles and remove the shingle granules that protect the roof.
Stay off the roof during very windy days.
Clean your roof without taking proper safety precautions.
But once the algicide wears off your roof hosts an all you can eat buffet for the neighborhood algae spores.
Then mix standard laundry bleach with water.
For extra cleaning power mix in a non ammonia heavy cleaner like tsp.
That way you always stand on dry surface and reduce the chance of slipping.