This picture of this roof that we cleaned illustrates what we do. We get your roof clean that day and spray a treatment for prevention of future growth! Dont let anyone just kill it simply by spraying as dead moss still retains water like live moss and it will come back to life in a few months. Get it done right that same day!  with pictures taken of every job.
JNR Industries (503-432-9093) is BY FAR your best option for roof cleaning and maintenance.Roof Cleaning Moss Removal Portland Or + For Gutter Cleaning