If you have a home that is shaded by tall trees, chances are you have some moss growing on your roof. Though it may look charming, this is not a good situation. It can work its way into and under asphalt shingles, causing them to break down and lift up. As a result, your roof will eventually be compromised and begin to leak. Water damage and related mold problems caused by a leaky roof can cost you a fortune in repairs. So green roof moss is far from innocuous. Consequently, it is important to remove any as soon as you see it forming.
To remove moss from a roof, gather a long-handled brush, a garden hose with a spray nozzle and a ladder. Also, make sure to wear a pair of rubber-soled shoes that will provide some grip when walking on wet asphalt shingles. In addition, if the roof has a steep pitch to it, you may want to tie yourself on with a thick rope.
Start at the peak of the roof when removing moss. Wet down small areas and then use the scrub brush to loosen up the moss from the shingles. Then rinse the loosened moss off the roof with the garden hose spray nozzle. Continue this process until all of the moss has been removed from the roof.
Do not use a power washer on your roof, as this could cause as much damage -- or more -- as moss would have.
As an alternative to scrubbing the moss off your roof, you can use the commercial product Wet & Forget moss remover. It's easy to use and effective. However, it may take a couple of applications over a period of a few months before the moss falls off the roof of its own accord.
Before green moss shortens the lifespan of your shingles and your roof springs a leak, nip the problem in the bud and swiftly remove the plant.
Mark J. Donovan's website is at http://www.homeadditionplus.com.