Moss can be removed physically with water and a stiff brush on a pole or a scrub brush chemically or a bit of both.
How to remove mold and moss from roof shingles.
If they are severely molded you may want to give it a little longer.
Use a garden hose to rinse the stains and cleaning solution from the roof.
2 slide sacrificial zinc strip underneath the loosened shingles.
Carefully place a ladder near the area of moss growth and don slip resistant shoes old clothes rubber gloves and eye.
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.
Experts recommend that you save roof moss removal for a cloudy day.
Start from the top shingle and rinse downward to prevent water seepage.
3 secure the strip with roofing nails.
How to remove roof moss fast before it damages your shingles.
Set the garden hose on the spray setting with the highest pressure water and hold the nozzle close to the shingles when rinsing.
This will remove any stains that were loosed up by the oxygen bleach.
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.
Allow the solution to soak into the shingles for at least 15 minutes.
Run your gloved hand over the shingles to check for any slimy mold remaining after you re finished rinsing.
Allow the oxy bleach mixture to sit on the shingles for about 15 minutes.
4 apply a dab of sealant to every nail head and run a bead of sealant under each shingle.
1 slide a margin trowel under shingles to unstick them from the ones below.
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.
Next rinse the shingles thoroughly with a garden hose at low pressure.
Hose off and brush all moss loose from your roof shingles.
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.
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 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.
If some remain apply the cleanser again wait 10 more minutes and repeat the rinse process.