As a last resort you can use a mixture of bleach diluted with an equal amount of water to kill roof moss.
Cleaning moss off roof with tide.
Many homeowners and websites claim that you can easily and safely remove moss from your roof by using simple household cleaning laundry detergents like tide or clorox.
Do not apply so much water that you wash the tide away but you must make the tide moist as it covers the moss which is particularly important if you are treating moss on a rooftop because if you leave the tide dry it may damage the roofing materials.
Rinse the mossy areas thoroughly to ensure that all the tide is removed from the roof.
Use the garden hose to saturate the tide lightly over the moss.
Sprinkle the detergent on the moss let it sit for three to four days and then sweep the dead moss off of the roof.
Always find out tide detergent is safe for roof type.
Rinse thoroughly to ensure there are no remains of the detergent on your roof.
Hose off the area with plain water spraying at a downward angle.
Rinse away the residue.
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Powdered dishwasher or laundry detergent kills moss with minimal effort and damage to the environment.
Using a garden horse wash off the moss and tide.
You can then attach zinc or other mineral strips at the top of each ridge line to help prevent the moss from returning.
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To clean either algae or moss the association recommends putting on protective gear and protecting plants spraying with a 50 50 mix of household bleach and water allowing that to sit for at.
Remove moss from a roof with detergent.
Apply w ith a sprayer and allow the solution to dwell on the roof surface for 15 to 20 minutes and then rinse thoroughly with low pressure water.
If your garden horse pressure is not enough use a scrapper or brush to remove the moss.
All you have to do they say is sprinkle the detergent on your roof and wait for it to kill the moss.
Then use a long handled soft bristle scrub brush to remove the moss from the roof scrubbing from the top down to avoid lifting.
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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.
