To remove moss from a roof, spray a mixture of equal parts bleach and water throughout the roof using a garden sprayer. Install zinc strips across the length of the roof to prevent moss growth.Continue Reading
Measure equal parts bleach and water, and mix in a garden sprayer. The bleach kills any existing moss and lichen.
Before spraying, cover nearby shrubs and lawn using plastic tarps.
Bring the garden sprayer to the roof, and spray the cleaning solution evenly over the shingles. Ensure complete coverage in order to remove all moss.
Use a margin trowel to loosen shingles from the shingles below them.
Slide zinc strips under the loosened shingles. When it rains the zinc particles in the strips dissolve in rain water and coat the roof to prevent moss from growing. Use roofing nails and a hammer to secure each strip.
Place a drop of sealant over each nail head and under each shingle, and press the shingles down.
Apply the strips across the entire length of your roof. Leave a 1/8-inch gap between each strip to allow for expansion.