If you notice green white or gray spots on your roof moss and lichen are likely the culprits.
Green mossy things on my roof.
Moss is darker green much thicker holds more water and also grips into the surface of the shingles.
To remove moss you first have to kill it.
Roof moss and lichen are not only unsightly but can damage the roof over time.
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.
Moss on a roof begins with a thin dusting of green that you may notice only from low angles.
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This thin layer on the top of the shingles expands and becomes wide thick and mat like.
The seams between the shingles and the shingles edges also develop moss because they tend to be especially shaded.
A more common type of growth on roofs is of course moss.
As a rule of thumb professionally removing moss will cost about 5 of what it would take to replace your roof altogether.
Identifying removing preventing algae fungus lichens moss on roof shingles.
The third most common type of growth on a roof is algae.
Asphalt roof shingle defects.
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.