For flat roofs or roofs that aren t safe to walk on use a liquid formula and a pump style sprayer to cover all the roof surfaces easily.
How to spray a roof for moss.
Spray roof with water.
Start by securing the harness system to the roof following the manufacturer s instructions to ensure they re installed properly.
Install a zinc strip near the ridge of the roof.
Or you can use a sprayer with plain water to first moisten the moss then refill it with the moss killing solution.
Carefully place a ladder near the area of moss.
Hose off and brush all moss loose from your roof shingles.
To apply wet moss killer attach the garden hose to the container.
No matter which method you choose to clean moss from your roof you re going to get dirty so dress appropriately.
Let the solution remain on the moss for 20 to 45 minutes which should be long enough for the moss to die.
To be proactive in moss control treat your roof right before the rainy season each year.
Potassium salts of fatty acids applied using a hose end spray attachment.
If your moss problem requires more than.
As moss dies rains will wash dead moss away.
Then spray the roof beginning at the ridge and working downward.
How to remove moss from roof tiles.
Spray the moss covered roof with a moss control product or sprinkle the material on depending on the product formulation.
The easiest way to do this is to bring a garden hose onto the roof with you.
You can speed the process with a broom or rake too.
Moss killer works at any time of the year.
Apply a storebought or diy cleaning solution to remove the moss.