Power Washing and Roof Cleaning Forum

AJ · Member

Old brick building

Chris Mozick · Approved Exteior Cleaner

Prob going to need F 9 to clean that up.

Jeff Wible · Approved Exterior Cleaner

That looks like efflorescence from here,....if it is,.don't make any promises on that efflorescence until you do a test spot. And then you need to explain to the customer what efflorescence is.

*The rest looks fairly easy.

Jeff

AJ · Member

What is best way to clean it? I read water and a stiff brush is all I need. Doesn't seem likely.

BlueRidge · Approved Exterior Cleaner

Jeff Wible wrote:
That looks like efflorescence from here,....if it is,.don't make any promises on that efflorescence until you do a test spot. And then you need to explain to the customer what efflorescence is.

*The rest looks fairly easy.

Jeff

What Jeff said. Efflorescence is a bear! Then there is calcite which takes two different chemicals and still might not come off.

While in Myrtle Beach last year I sat in on the class by Arron Richie, http://www.benchmarkpressurewashing.com/ for brick cleaning. He said he has no problem hitting brick with straight SH if that is what it takes. It beats getting the PW going and possibly doing damage with older brick and mortar. I attack these with roof mix then bump it as needed. A strong garden hose rinse or a 30 or 40 tip in the gun will usually do a nice job. It doesn't look like you have anything to worry about other than weeds!

AJ · Member

Thanks Brett. I like that plan!!

SprayWash · Approved Exterior Cleaner

Jeff Wible wrote:
That looks like efflorescence from here,....if it is,.don't make any promises on that efflorescence until you do a test spot. And then you need to explain to the customer what efflorescence is.

*The rest looks fairly easy.

Jeff

What Jeff said!!!!!!

And What Brett said!

-- Edited by SprayWash on Thursday 19th of May 2016 08:05:27 AM

Chris Mozick · Approved Exteior Cleaner

F9 makes an efflorescence Reamover I've used it and works great