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Post Info TOPIC: Odd Discoloring


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Odd Discoloring
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I was looking at a five unit property yesterday and this strange discoloration is on the side of roof without algae. Each unit has the same thing. I am pretty sure it's from the copper caps because I see the same thing at the copper eyebrow vents. If we get the work (for spring) I already said I would do a test in the area of the cupola first to see what happens. Thoughts and ideas?



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Brett Thompson

Blue Ridge Exterior Cleaning

BlueRidgeExteriorCleaning.com

434-466-1324    540-949-6277

brett@BlueRidgeExteriorCleaning.com



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It almost looks like it is missing granuales, but probably copper staining


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Tim Teed

302-559-7533

Vesta Wash Roof Cleaning

Northern De/Southeast PA

http://www.VestaWash.com



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Is it on the other 3 sides?

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Mario Ciottariello  

North Jersey 1st Softwash Systems Authorized Pro.                     

 201-341-5379 Cell

www.SoftWashRanger.com

Softwash Ranger 

549 A Pompton Ave  Suite 169

Cedar Grove NJ 07009

1-844-GET-SOFT



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It's not granule loss and the other sides were hard to see due to sun or the way they are built into hills. Here is a picture of the south side.



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Brett Thompson

Blue Ridge Exterior Cleaning

BlueRidgeExteriorCleaning.com

434-466-1324    540-949-6277

brett@BlueRidgeExteriorCleaning.com



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I will go with Tim s explanation.

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Mario Ciottariello  

North Jersey 1st Softwash Systems Authorized Pro.                     

 201-341-5379 Cell

www.SoftWashRanger.com

Softwash Ranger 

549 A Pompton Ave  Suite 169

Cedar Grove NJ 07009

1-844-GET-SOFT



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Ive always assumed this was the beginning of rust staining. I've seen similar on houses that i dont think had copper or copper flashing on them.

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Dirty-Roof.com

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Slate Roof Cleaning Long Island NY

516-804-0447



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I've been thinking about this... how could it be copper staining? Im consistently at upscale homes that have copper flashing everywhere (chimneys, cupola, gutters, roof wall intersections,etc) and dont see this in those spots.

I have seen black staining on some slate and tile roofs that I posted about a while back not sure what it was but F9 took care of it.

www.nationalsoftwashalliance.com/t62297876/what-is-this/

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Dirty-Roof.com

Roof Cleaning and Power Washing Services 

 

Slate Roof Cleaning Long Island NY

516-804-0447



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F9 should take care of that.

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Chris Mozick

Paradise Pressure Washing, LLC

Honolulu HI

808-457-9301

Paradisepressurewashing808@gmail.com

 



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coated copper does not stain as much.
as the coating breaks down , more light green stains, mainly at cut edges.

bare copper will oxidize over a large surface area faster and produce more staining.

that may be the difference from house to house.

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Maverick Contracting

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