How do you prevent moss from growing on your roof? Keep the roof free of tree debris, leaves and existing moss. Keep the gutters clean to avoid spreading moss upwards. Cut branches back from roof line. Apply a moss preventative treatment. Just like any other aspect of home ownership, roof maintenance must be done on
How do you remove moss from your roof? Determine the kind of moss growing on your roof. Know exactly what type of roofing material you have, how old it is and if there is any existing damage. Choose the right combination of cleaning and rinsing agents and the cleaning method based upon your roof type
As this video show, on the same roof, there can different types of roof moss. An experience roof cleaning contractor (we know a great one in Portland if you need a recommendation!) needs to know exactly how to approach each unique roof. When an estimator from All Surface comes out to review your roof, they take many factors into consideration when determining how best to clean your roof. They will chose a method that will both address your moss problem but yet be as gentle as possible.
That sounds like a tongue in cheek statement but in reality, you would be hard pressed to find a metropolitan area that consistently has more of the elements necessary for an abundance of roof moss. The often cloudy skies we have during long stretches of the year are a main contributor to Portland roof moss.