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Roof Cleaning Severna Park MD · guest

Do you think this will come clean with a regular house wash mix?

aaron61 · Guest

do a test

Jo Jo · May 20, 2011

What is the lower surface and in between your cleaning made of? Dryvit or concrete? Viewed photos on phone and can't make it out real well.

Roof Cleaning Cleveland (216) 323-0552 · May 20, 2011

Phil, I don't think it is going to come clean, it should come cleaner. I remember a similiar post a while back. I think they used oxcilic acid on it.

Roof Cleaning Severna Park MD · guest

Tom, are you referring to the stained white areas or the lower concrete area? It was pouring when I took the pics, so no test has been done yet. Will do one this weekend when it's nice out.

Jo jo, that is concete.

Guest

Phil hard to tell from the pics but looks like rust stains? Rust will come off but not with a regular house wash mix So you will need to price higher not sure if you have done any rust removal and I am no expert with it but the price would be much higher than normal.

Roof Cleaning Severna Park MD · guest

That red color is not rust, luckily, but it seems as if it is from the red block above. With that being said, don't have experience with this type of project, so I figured I would ask before giving the property manager false hope. That redish color seems to be coming off of the red stone that is on certain sections of this building.

Roof Cleaning Cleveland (216) 323-0552 · May 20, 2011

Phil, the upper area. there was a post a while back that looked similiar.

Jo Jo · May 21, 2011

Phil, if you have some F18 from Pressure Tek try that in small test area. I have cleaned similar surfaces and it worked well. The only trouble is like Tom stated may look cleaner but not 100%. Sometimes facilities let these surfaces go to long and there is nothing you can do but your best and let them know up front that there is a chance it may not come 100% clean but lighter in appearance.

Roof Cleaning Severna Park MD · guest

Thanks guys. I have been upfront with them, espeially since doing a test today and finding the stains to be quite stubborn. They have a max that they can spend, so specialty cleaning is out of the question.

Thank for the feedback!

The Roof Cleaning Institute Of America Training & Certification Forum "Find A Certified Roof Cleaner Directory"

The Roof Cleaning Institute Of America Training & Certification Forum
"Find A Certified Roof Cleaner Directory"