Using bleach is recommended by most shingle roof manufactures and the arma asphalt roofing manufactures association.
Moss roof remover.
Fortunately removing moss is a fairly simple task that you can perform on a seasonal or as needed basis to keep your roof weathertight and great looking.
Work on one small section at a time which allows you better control of the brush and your scrubbing motions.
Liquid moss killers cover the roof more evenly than dry powders and they let you stay on the ground for the application.
Even so you will always need to mount the roof later on in order to remove the dead moss.
Before applying a moss remover cleaner use a scrub brush 3 15 the home depot or a long handled soft bristle brush to gently scrape or pluck moss from the roof shingles or tiles.
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.
Follow these steps for how to remove moss.
To remove moss you first have to kill it.
3 secure the strip with roofing nails.
If the water will not reach the peak of the roof from the ground you can spray while standing on a ladder.
When the moss is dead scrub it off then install zinc flashing to prevent more moss growth.
Use a solution of bleach vinegar or dish soap for this.
Space between the strips.
5 continue installing zinc strips across length of roof end to end leaving a 1 8 in.