That way whenever it rains some of the metal molecules will wash down the roof and kill any algae trying to regain a foothold on your shingles.
Getting algae off roof.
How do i get rid of algae.
Some homeowners also try to get rid of algae by using bleach.
You can try brushing off algae and moss with a brush or broom with medium stiff bristles but don t scrub too hard.
You might think that pressure washing is the best way to remove algae.
Roof algae is not harmful or dangerous in itself but after a period of time the algae can cause the protective uv granules that cover roofing shingles to begin to come off eventually drying them out.
Hose off and brush all moss loose from your roof shingles.
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.
Lastly but more importantly roof algae can damage health.
It takes special care to clean algae roof stains and moss off the roof.
To keep algae from coming back once your roof is clean install a strip of copper or zinc coated sheet metal along each side of the roof just below the ridge.
A copper strip at the top of the roof can prevent future roof algae.
To be effective 2 4 of metal should be visible on the roof.
To remove roof algae a solution of oxygen bleach can be applied to the roof shingles and then rinsed off.
For it to be effective two to four inches of the metal needs to remain visible on the roof.
If you want to make sure algae doesn t come back after you have cleaned your roof then install a strip of zinc or copper coated sheet metal on each side of your roof just under the ridge.
Pressure washing can even tear shingles off your roof.
Carefully place a ladder near the area of moss growth and don slip resistant shoes old clothes rubber gloves and eye.
You should never use home remedies or store bought chemical products to clean algae.
This lichen feeds off both the algae and the shingle filler.
Roof algae fungus mildew moss and mold could ultimately hurt your health.
The roof algae is doesn t harm the shingles but looks bad.
Thousands of roof on homes and other buildings suffer from black streaks.
The sooner you deal with roof algae the better for your health and safety.
However the force of the water can cause your shingles to lose their protective granules.
This is important in order to not harm the roofing and siding materials.
If algae turn into a mold or mildew problem your family could be breathing in dangerous bacteria while spending time in your home or yard.
You don t want to separate the mineral granules from the shingles.