are moss spores harmful
During the moist, cooler months, these spores grow into moss. In drier weather, the moss goes dormant, turning into a rust-colored plant mass. Moss is different from algae, lichen or mold fungi, which are typically easier to clean and less damaging to a roof.Moss readily grows on roof shingles, especially in the spaces between shingles where the spores collect. In wet climates, moss commonly grows into a mat that can be as much as a few inches thick.uring the moist, cooler months, these spores grow into moss. In drier weather, the moss goes dormant, turning into a rust-colored plant mass. Moss is different from algae, lichen or mold fungi, which are typically easier to clean and less damaging to a roof.