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

Members Login
Username 
 
Password 
    Remember Me  
Our Founders Website -> Locate A Certified Roof Cleaner | Roof Cleaning Institute Of America -> Power Washing Forum -> Discoloration Of Limestone Brick
Post Info TOPIC: Discoloration Of Limestone Brick
Roger123


Guest

Status: Offline
Posts: 1
Date:
Discoloration Of Limestone Brick
Permalink  
 

Hello All,



I have some discoloration I encountered after I sprayed 10% S H on black mold on the surface of a white limestone residential brick house. This was done about one week ago. Since then I have used a power washer on the areas discolored with no affect at all. Please note that the mortar in between the brick does not have the discoloration. In addition, one area of the house treated the same way that had green algae looks great with no discoloration. Anything advise on what I might have done wrong and how to correct it would be greatly appreciated.

Thanks,

Roger



Attachments
__________________
Raystown Roof Cleaning Central PA 1-800-236-0322


Guest

Status: Offline
Posts: 1342
Date:
Permalink  
 

In my opinion the SH wouldn't do that. But, if I was trying to get the original color back, I'd hit those areas with oxalic acid first,..then move up to something a little stronger. Be careful with acids on stone, they can leave acid burns.

This board isn't as populated as it once was:

Please check out:

roofcleaninginstitute.org

Propowerwash.com

 

Jeff



-- Edited by Raystown Roof Cleaning Central PA 1-800-236-0322 on Friday 29th of May 2015 04:58:03 AM

__________________

Raystown Roof Cleaning
Central, Pa

(814) 644-1396 or 1-800-236-0322

Roof Cleaning Central Pennsylvania

Huntingdon, State College, Lewistown, Altoona
J AND E GUTTER


Premium Member Roof Cleaning Institute of America

Status: Offline
Posts: 27
Date:
Permalink  
 

i did a church last year with limestone base ..this brown you see is the reaction with the iron content in the stone ...that is why the mortar isnt turning..great place t get these answers is to Google........ gravestone restoration... that is were i did my research before i did the job..hope this helps



__________________

J and E Roof and Gutter Cleaning Marysville Ohio

http://jegutter.webs.com/roofwash.htm

Roof Cleaning in Franklin, Delaware, and Union County OH

614- 738 - 1732

Edward Yackenovich
Page 1 of 1  sorted by
 
Quick Reply

Please log in to post quick replies.
Our Founders Website -> Locate A Certified Roof Cleaner | Roof Cleaning Institute Of America -> Power Washing Forum -> Discoloration Of Limestone Brick
Tweet this page Post to Digg Post to Del.icio.us


Create your own FREE Forum
Report Abuse 		Powered by ActiveBoard