It may cause standing water.
Moss on roof shingles treatment.
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.
In the seams use the sharp edge of the scraper like a dental pick to force out the moss.
Grab your oxygen bleach solution and apply it to all sections of moss growth.
Chemical treatments may harm shingles as well as moss creating a more significant problem.
If your moss problem requires more than.
Hose off and brush all moss loose from your roof 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.
Apply w ith 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.
Roof treatments to prevent or remove lichens moss include use of metal flashing strips algae resistant shingles or chemical treatments.
Dead moss must still be removed by hand or it will impede the flow of water off the roof and create issues.
Hose off and brush all moss loose from your roof shingles.
A high pressure water sprayer can prove very effective at removing moss and other debris.
Use the tool to gently lift away matted moss that has gathered on the flat sections of the shingles.
Continue layering the solution as needed to keep the moss damp for 20 minutes.
Apply a storebought or diy cleaning solution to remove the moss.
It is best to do this on a calm overcast day.
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.
If the moss does return do not rely on harsh chemical treatments or dry spells to kill it.
Experts recommend that you save roof moss removal for a cloudy day.
Just brushing or raking off moss won t prevent future moss growth and if roof cleaning is not done with care you risk damaging the shingles and reducing the life of the roof.
Carefully get up to your roof and brush downward to knock the moss loose.
You can cut strips of zinc flashing copper and lead work too and slide them under a course of roof shingles to kill lichen and moss growing there or you could just buy these premade strips from shingle shield.
The premade ones are much quicker and probably neater looking.
Use a sprayer carefully as it.
Moss killers are most effective if applied when moss is actively growing and no rain is anticipated for several days.