While moss is typically not harmful it could cause minor damage to a roof.
Homemade recipers to remove moss from roof shingles.
Moss retains moisture which could pose a problem for wood shingles where rotting and decay could occur.
Moss itself is a plant while lichen conisist of a fungus and a photosyntheizing plant living together.
Hose off and brush all moss loose from your roof shingles.
Apply generously over the remnants of the moss and the roof shingles.
Mix 4 scoops or 1 2 cup of oxygen bleach with 4 gallons of warm water.
When leaves and other material collect on your roof a perfect bed is formed for moss and lichens to grow.
Homemade moss killer for roofs.