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Clean outside of a chimney?

Posted on 7/5/14 at 5:08 pm
Posted by urinetrouble
Member since Oct 2007
20503 posts
Posted on 7/5/14 at 5:08 pm
The outside face of the my chimney that is opposite the roof edge has some mildew stains that I want to remove. I'm going to have to get on the roof to reach it. I normally use a diluted bleach solution to clean the outside walls of my house.

Is there any harm is using this on my roof?

I would do my best to rinse it off.
Posted by NEWBIE
Member since Jun 2008
196 posts
Posted on 7/5/14 at 5:16 pm to
LINK

I think just bleach should be ok.
This post was edited on 7/5/14 at 5:18 pm
Posted by fightin tigers
Downtown Prairieville
Member since Mar 2008
73674 posts
Posted on 7/5/14 at 5:19 pm to
quote:

Is there any harm is using this on my roof?



I use bleach/simple green. Can't see how it would cause a problem. Especially if you are washing it off.
Posted by urinetrouble
Member since Oct 2007
20503 posts
Posted on 7/5/14 at 5:34 pm to
quote:

I use bleach/simple green. Can't see how it would cause a problem. Especially if you are washing it off.



I thought so too, but my Dad was making me paranoid about not getting it off entirely and causing nails or flashing to rust. IDK.

Posted by StrangeBrew
Salvation Army-Thanks Obama
Member since May 2009
18183 posts
Posted on 7/5/14 at 5:38 pm to
If it is opposite the roof edge, why would you care if it has mold on it? Surely it can not be seen from the ground.
Posted by urinetrouble
Member since Oct 2007
20503 posts
Posted on 7/5/14 at 5:58 pm to
quote:

If it is opposite the roof edge, why would you care if it has mold on it? Surely it can not be seen from the ground.



It's not prominent, but it can defintiely be seen from the front. Once I noticed it, it started bothering the crap out of me.
Posted by Btrtigerfan
Disgruntled employee
Member since Dec 2007
21367 posts
Posted on 7/5/14 at 6:02 pm to
Rent a pressure washer and blast it off. When the bricks dry in a few days, seal them with concrete sealer. Don't bust your arse.
Posted by fightin tigers
Downtown Prairieville
Member since Mar 2008
73674 posts
Posted on 7/5/14 at 6:23 pm to
quote:


I thought so too, but my Dad was making me paranoid about not getting it off entirely and causing nails or flashing to rust.


I doubt the bleach would be a strong enough acid to remove the galvanization and rust any metal. Washing it would lessen these effects even more.
Posted by Spankum
Miss-sippi
Member since Jan 2007
55979 posts
Posted on 7/5/14 at 6:24 pm to
Bleach has screwed up a lot of shite on my house through the years, so I seldom use it...there is a product at Home Depot called MoldArmor that is cheap and works at least as well...and it won't mess up your shite.
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