Climb up to the roof and begin scraping off dead moss from the shingles using a putty knife or painter s 5 in 1 tool and working from the bottom up.
How to get moss off roof.
The most effective method of cleaning algae and moss from a roof is with a 50 50 mix of laundry strength liquid chlorine bleach and water.
This breaks down the rhizoids moss roots and kills the moss.
This is oof cleaning products which should be left to absorb into the moss for at least 20 minutes will not evaporate as quickly as they would on sunny days.
Apply with a sprayer and allow the solution to dwell on the roof surface for 15 to 20 minutes and then rinse thoroughly with low pressure water.
Experts recommend that you save roof moss removal for a cloudy day.
Take hold of the soft bristle brush and scrub away any remaining moss.
It doesnt harm plants or grass so it doesnt matter if there is run off from the roof.
Point the hose towards the top of the roof and rinse off the moss killing solution along with the dead moss.
Use the tool to gently lift away matted moss that has gathered on the flat sections of the shingles.
Moss can be removed physically with water and a stiff brush on a pole or a scrub brush chemically or a bit of both.
Rinse the roof again with the hose to remove any remaining loose moss sitting on the roof.
Hose off the area with plain water spraying at a downward angle.
Use sodium percarbonate its a granule which produces oxygen when mixed with water.
Then use a long handled soft bristle scrub brush to remove the moss from the roof scrubbing from the top down to avoid lifting.
In the uk we get lots of moss on roofs.
To clean either algae or moss the association recommends putting on protective gear and protecting plants spraying with a 50 50 mix of household bleach and water allowing that to sit for at.
To keep the algae from coming back insert 6 inch wide strips of zinc or copper under the row of shingling closest to the roof peak leaving an inch or two of the lower edge exposed to the weather.