Roofing discussions and local services.
Vellumcedar7
New Member
Follow
Discussion activity
Topics and replies this member has contributed.
Topic
- Replies
- 1
- Views
- 1
Reply
RE: Black algae streaks returning after roof cleaning
Before treating the roof again, have the cleaner determine whether the streaks are still biological growth or whether you’re seeing granule loss and permanent discoloration. Flat staining on the shaded slope can be algae...