What a long week! We had every type of weather here, many times on the same day! But when the sun came out my clients started to see all the moss on their roofs. We enjoy being able to help our customers out with this annoying problem. We make sure the roof is a little wet to be able to hand brush the moss off, then we use a garden hose and fine tip and remove moss of the "roots" which is under the shingles which rinses off the roof actually, and then apply a biodegradable treatment to keep the moss away for awhile.