Commonly found in climates with warm humid summers it does no damage to the roofing but it certainly does looks bad.
Green mossy things on my roof.
This thin layer on the top of the shingles expands and becomes wide thick and mat like.
The third most common type of growth on a roof is algae.
These are probably not good things for your composition shingles.
Is it a problem.
Moss on a roof begins with a thin dusting of green that you may notice only from low angles.
If you notice green white or gray spots on your roof moss and lichen are likely the culprits.
Moss is darker green much thicker holds more water and also grips into the surface of the shingles.
Moss growing on a roof lifts the shingles and allows water to seep underneath and rot the roof deck.
Use a solution of bleach vinegar or dish soap for this.
When the moss is dead scrub it off then install zinc flashing to prevent more moss growth.
Identifying removing preventing algae fungus lichens moss on roof shingles.
Asphalt roof shingle defects.
The black mold like stains and streaks that appear on roofs particularly light colored asphalt shingles is actually a blue green algae gloeocapsa magma.
Here we discuss the causes of algae moss lichens or fungal growth on roof shingles the effects of these conditions and how to cure or prevent them.
Removal of moss from roof tiles often requires the services of a professional contractor but there are also easy things you can do at home to prevent moss from growing on your roof tiles.
Roof moss and lichen are not only unsightly but can damage the roof over time.
Moss on roof tiles.
Ultimately moss growth on a roof can result in costly repairs and can also reduce the lifespan of your roof.
Photos and text guide diagnosis of asphalt roof failures how to identify and explain roof shingle failures obtain claims.