Wind sunlight water etc.
Remove moss on roof with bleach.
The bleach will kill the algae or moss but rinsing won t necessarily leave the roof sparkling clean.
Algae will disappear and wash away with subsequent rains the association advises.
Moss may look quaint atop your house but it can greatly shorten a roof s lifespan.
Start at the top and work your way down.
The reason you shouldn t use bleach to remove moss from your roof has to do with the composition of your shingles.
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.
Use the watering can to drench the moss with the bleach water solution.
Using bleach is recommended by most shingle roof manufactures and the arma asphalt roofing manufactures association.
It is this very oil tar and asphalt which protect your shingles from the elements.
1 to 3 cups chlorine bleach 2 gallons of water.
You will notice the moss turning a yellow color.
Chlorine bleach will kill roof moss but when you rinse if off the roof it may kill the plants growing alongside your house too.
Remove moss in just 3 steps and keep it off for good.