Using shingles that have been treated with algicide keeps the growth at bay for about 10 years thus the 10 year algae warranty.
How to clean your roof shingles.
Keeping your shingles clean doesn t just make your neighbors happy.
So it pays to clean your shingles as soon as you spot algae growth.
Wait about 20 minutes then rinse off the shingles with your garden hose use the most powerful spray setting available.
Perform maintenance on your roof.
In other words only clean your asphalt shingles on days when the temperature will remain above 32 degrees fahrenheit zero degrees celsius.
If you know how to clean the roof shingles you can get rid of those streaks or discolorations that can cause a perfectly good roof to look worn and tattered.
Additionally don t clean your asphalt tiles on days when the cleaning agent could freeze.
There are several products on the market specifically designed to remove algae stains from roofs such as wet forget outdoor.
Clean your roof on a sunny day which will cause the bleach solution to evaporate too quickly limiting its cleansing effects.
You ll need the cleaning solution to drain off the roof during rinsing.
Stay off the roof during very windy days.
Therefore clean asphalt shingles on cloudy days.
Clean your roof on a cloudy calm day when the wind isn t blowing and there s no threat of precipitation.
Then spray your cleaner onto your shingles in a smooth even coat.
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.
Do it yourself and save big bucks.
Clean your roof without taking proper safety precautions.
This video shows a basic overview of the roof cleaning algae stain removal restorat.
It also gets rid of mildew.
Afterwards clean out your gutters and downspouts.
Roof cleaning is required maintenance for all composite shingle roofs.
Once you ve finished cleaning your roof spray on your stain blocking roof protectant to help prevent algae growth or regrowth in the future.