Moss Algae On Roof

Moss on your roof is typically green throughout the wet times of the year but can turn greenish brown during the drier seasons.

Moss algae on roof.

Commonly found in climates with warm humid summers it does no damage to the roofing but it certainly does looks bad. The black mold like stains and streaks that appear on roofs particularly light colored asphalt shingles is actually a blue green algae gloeocapsa magma. Moss build up can lead to roof damage or shingle blow off if left unchecked. It can be brown gray blue or green.

What is roof algae. Copper strips prevent the growth of moss and algae. Copper is more toxic to moss and algae but zinc is. Roof moss removal usually requires a broom or heavy stream of water.

Stop a moss problem from returning by installing strips of zinc or copper coated sheet metal just below the top ridge on both sides of the roof. Algae and moss growth on roofs at a minimum is an unsightly nuisance. Where there s moss there is also algae as they thrive on the same wet and shady conditions. Algae is not a plant but an organism spread by spores.

Though algae resistant shingles will not prevent moss they will help you avoid pesky algae. Because moss or lichens growing on a roof surface will hold moisture on the roof longer than other areas these growths can reduce the life of the roof covering. Moss is a thick organic growth. So even if you do live in a cool damp climate sections of the roof that get strong sunlight every day may not develop moss.

You can avoid an algae infestation by installing algae resistant shingles such as iko s nordic shingles. Moss develops in perennially shady areas and in places that tend to be cool and damp. Keeping branches trimmed back from the roof and removing any debris that begins to accumulate should be part of a regular roof maintenance program. Moss on a roof begins with a thin dusting of green that you may notice only from low angles.