Heavy moss growth can actually form dams that can cause water to back up under the shingles and damage the roof deck. It’s best to clean moss off a roof as soon as you notice it’s growing there. Safety First. Both algae and moss can be easily removed from asphalt shingles with a 50/50 solution of chlorine bleach and water.One of the most gentle yet effective ways to remove roof moss and clean the roof is by way of scraping. A normal 9 trowel is suitable, if your roofing contractor chooses a dry day any moss will flake off the roof much easier and there won’t be any scratch marks on the tiles.The less expensive solution is to spray wash the roof with a 50 percent mix of water and bleach to get rid of the algae. (No pressure washers, please. They’re likely to damage the shingles.) Just be sure to wet your foundation plantings first, and rinse everything in clean water when you’re done.Roof Moss Removal and algae tips. roof moss removal usually requires a broom or heavy stream of water. Moss is a thick organic growth. Algae is just a thin film of organic growth that can be removed by washing the roof with certified organic oxygen bleach.moss Off Roof – it’s what we do! ‘The safest, best way to clean roof moss with no wet mess’ call 07967 525992 roof moss removal cost. Find out roof moss removal cost for your property or get more information about our services.To clean the visible marble on the dome and roof of the Jefferson Memorial, specialized lasers will be utilized to remove the black biofilm – a microbial colony of algae, fungi and bacteria seen.The plants’ rootlike structures may also penetrate roofing materials, breaking them apart over time. A roof-cleaning company can remove moss (or algae) with a power washer. But this process may.It can be very difficult to remove moss from a roof and prevent it from returning, but here are a few easy tips that can help keep your roof and surrounding areas moss-free. One of the most crucial.Experts at Moss Removal and Roof and Gutter Cleaning! We remove moss, clean gutters, whiten gutters, provide chemical moss treatments and pressure wash drive ways, decks, patios, walkways siding and more!