It looks like a little patch of grass or maybe a really big patch if you ve let it go for a while.
Moss on the roof tiles.
Moss growing under roof slate and tiles can push the slate out of position allowing rainwater to seep into the roof structure.
Inspect the roof for areas that have been damaged by moss.
Moss is probably the easiest growth on your roof to identify.
If the above sounds like too much of a hassle which honestly it likely does then know that the most effective method is to prevent the problem of moss on your roof in the first place.
When rain finds its way into the roofing structure that s when decay and rot sets in.
Ultimately moss growth on a roof can result in costly repairs and can also reduce the lifespan of your roof.
Hose off and brush all moss loose from your roof shingles.
Carefully place a ladder near the area of moss growth and don slip resistant shoes old clothes rubber gloves and eye.
Moss on roof tiles can cause multiple problems such as wood rotting and the obstruction of drainage points.
Use the round filed knife to cut moss under the shingles by inserting it under the edge of the shingle gently to avoid damaging the roof shingle.
Keep your trees well trimmed to lessen the debris that falls onto your rooftop.
Run the edge of the knife along the edge of the roof to remove the edge seal of moss on the shingle.