Reasons to remove moss from your roof.
1. Because it can root itself in to the structure and deteriorate your roof.
2. You may be selling your house and you want it to look nice. A roof cleaning job done right can bring the roof back to looking brand new.
3. Your insurance requires that you do it.
4. So that your neighbors do not have to look at all that moss on your roof and they will know that you are good at maintenance. Piece of mind.