The less expensive solution is to spray wash the roof with a 50 percent mix of water and bleach to get rid of the algae.
Getting moss off roof tiles.
Carefully place a ladder near the area of moss growth and don slip resistant shoes old clothes rubber gloves and eye protection.
Scrape off the moss.
When leaves and other material collect on your roof a perfect bed is formed for moss and lichens to grow.
You could replace all the roofing with new shingles dark enough to disguise the staining or with shingles laced with copper granules which are lethal to algae.
That s my bit my pay it forward for the day.
Moss growing under roof slate and tiles can push the slate out of position allowing rainwater to seep into the roof structure.
But that would only make sense if the shingles were worn out.
And catch the gutter run off.
It s actually a combination of algae and fungi living together.
Lichen isn t a plant.
Moss can grow quite quickly and it will grow in between roof tiles filling in the voids and lifting up roof tiles and slates.
Got an office.
Cleaning moss off roof tiles is generally best done as soon as possible before this soil has a chance to gather.
Oh i used a hose and blasted it.
Work on one small section at a time which allows you better control of the brush and your scrubbing motions.
Having now learned about the bleach i will do it again a few times more with some bleach y poo for the roof moss.
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.
In fact it s not even a single organism.
And on your roof it usually looks like a green crust that grows in patches.
Moss itself is a plant while lichen conisist of a fungus and a photosyntheizing plant living together.
Hose off and brush all moss loose from your roof shingles.
You can remove moss and lichens from your roof by using vinegar as a environmentally friendly weedkiller.
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.
Used my fertilizer sprayer 20 at the big box.