Black algae


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Old 02-25-24, 03:56 AM
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Black algae

Good morning. Looking for opinions on how best to deal with these black streaks, 5 buildings are involved in SW Florida , lite color shingles, roofs are approximately 6 years old
Thanks for your input.
Geo🇺🇸
 
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Old 02-25-24, 04:31 AM
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I have used chlorine and copper based algae & mildew treatments that worked well. There are also building wash concentrates intended for use when pressure or soft washing houses that are pretty effective.
 
 

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