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.
How to remove mold and moss from roof shingles.
Start from the top shingle and rinse downward to prevent water seepage.
Set the garden hose on the spray setting with the highest pressure water and hold the nozzle close to the shingles when rinsing.
Comes in a number of formulations one specifically for roofs and others designed to remove and or inhibit moss and fungus growth on siding masonry surfaces and even lawns.
Start from the top shingle and rinse downward to prevent water seepage.
Allow the solution to soak into the shingles for at least 15 minutes.
Carefully place a ladder near the area of moss growth and don slip resistant shoes old clothes rubber gloves and eye.
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.
1 slide a margin trowel under shingles to unstick them from the ones below.
Experts recommend that you save roof moss removal for a cloudy day.
Moss can be removed physically with water and a stiff brush on a pole or a scrub brush chemically or a bit of both.
Next rinse the shingles thoroughly with a garden hose at low pressure.
A homemade cleaner of one part liquid chlorine bleach to one part of water can also be effective in removing and killing moss that clings to the roof tiles.
2 slide sacrificial zinc strip underneath the loosened shingles.
Next rinse the shingles thoroughly with a garden hose at low pressure.
Run your gloved hand over the shingles to check for any slimy mold remaining after you re finished rinsing.
How to remove roof moss fast before it damages your shingles.
Use a garden hose to rinse the stains and cleaning solution from the roof.
Apply liquid cleaners with a hand pump sprayer or with a pressure washer on the lowest setting so as not to cause any damage to the shingles.
3 secure the strip with roofing nails.
Their formulae use tried and true zinc compounds that linger on surfaces to provide continuing protection from fungus regrowth.
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.
This will remove any stains that were loosed up by the oxygen bleach.
Allow the oxy bleach mixture to sit on the shingles for about 15 minutes.
If they are severely molded you may want to give it a little longer.