Stucco streaks and rust

[Rsuds]

What would you use to clean these chimneys. They have a lot of them and they did change the tops so they will not streak anymore. Roofs are not very easy to walk.

 

[Vince Wood]

Have you tried downstreaming some F9 on it yet? It should take it right off.

 

[Scott D.]

Yea. (Extremely)Diluted gutter cleaner will work. It probably won't remove it 100%, but it'll look a billion times better.

 

[PressureBrothers]

I can usually get off the black streaks with a roof wash, and the rust stains with an acid. Sometimes a little agitation goes a long way with these chimneys.

 

[American-ProTech]

Hey Brian. We'd use roof mix for the streaks as Joe mentioned, and ox for the rust. We'd walk the roof to treat the chimney with mandatory cougar paws.

 

[Doug Rucker]

We would Flood the roof with water if we aren't cleaning the roofs. Treat the streaks w a roof mix, heavy rinsing. The then the rust stains with F9.

 

[Scott D.]

How are you guys getting oxidation stains off with a roof mix? Magic?

 

[AZ PowerWash Pros]

Ive used F9 on stucco many times.

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[Zap It Wash]

I have a love/hate relationship with chimneys. The high ones can be a real pain.