Installation over roof algae

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Installation over roof algae

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From a standpoint of installing over biological growth, underlayment will be installed over it which will isolate it from light and moisture so it will die. As far as whether the unevenness of any biological growth will cause problems with the new roof, probably not -- but a lot depends upon how forgiving the new roof panels are.

Todd Miller
2019-01-05 14:06:27.373547

Our asphalt shingles have extensive roof algae on them, may a metal roof be installed directly over the asphalt roof?

Jannie Freshour
2019-01-05 13:36:10.074400

Thanks for sharing

lee anhy
2020-08-27 08:28:29.548621