A friend of mine cleaned this shopping center in Macon, GA and he wasn't able to get these black stains off. He's tried different strengths of bleach, multiple degreasers and One Restore. Any suggestions? It's about a 2 hour drive from me and I may drive down and try to fix it for him if I can.
I would try F9 Calcium and Efflorescence remover if the other products he tried didn't work
John Aloisio said
Sep 18, 2015
Jason,
i cant tell from the pics but it appears the streaks are at intervals that match up to standing seam roof above. If so, then it is most likely a stain from the cut edge of the panels. Most commercial standing seam is galvalume win a Kynar 500 finish paint. The cut edges will have exposed metal made up of a aluminum and zinc coated steel. The edges might be forming some oxidized streaks below. Maybe try oxiwash or some form of gutter cleaner.
Just my opinion. Hope this helps.
Jason Heath said
Sep 18, 2015
Thanks Paul and John!
Chad Eneix said
Sep 18, 2015
Jason,
Please update on this if you find anything that works.
My go-to is OneRestore for things like this, so I was surprised that had not worked. Also, if the masonry is in good shape, maybe a hot water pressure washing? My first thought was also that the pattern looked very regular, like it was the result of some specific part of the structure causing the stains. I thought maybe caulk, but OneRestore should have taken care of that, although I usually use it in combination with hot water pressure wahing.
Jason Heath said
Sep 18, 2015
Thanks Chad. I will. He's tried heat as well without any luck.
Vic Irish said
Sep 20, 2015
Is there any chance those bricks were made with concrete?
Maybe the slurry coat or paint has faded?
Just a wild eyed guess, remembering the first 10 minutes of AC's presentation at Rosenstein's in Carson.
If they have made slate tiles out of concrete, it's not too great a stretch to think they might do it with bricks, too.
I agree with John those streaks are coming from the roof. Purple power might just do the job. Full strength
John Aloisio said
Sep 24, 2015
How did this work out?
Fred Winter said
Sep 24, 2015
Looks like brick veneer overlay with possibly metal studs every 24".
May be moisture wiking (oxidation) from the studs if rain water runoff is getting to them.
Michael Derose said
Sep 24, 2015
That's what it looks like to me as well.
Jason Heath said
Sep 24, 2015
He's still experimenting. I've been talking with him by phone to try to help. This is holding up a $20,000 check for him. I've been swamped and haven't been able to get down there. I wonder if we have any "in network" guys that could help him out?
Michael Derose said
Sep 24, 2015
Try muriatic acid. Start with a low concentrate first. Then boost up if needed.
AC Lockyer said
Sep 25, 2015
Paul Low Chew Tung wrote:
I would try F9 Calcium and Efflorescence remover if the other products he tried didn't work
Paul,
Your truck looks AWESOME! However..... Please remember the BB rules are that you need to have a professional head shot for your avatar. Your truck can be in your signature instead.
A friend of mine cleaned this shopping center in Macon, GA and he wasn't able to get these black stains off. He's tried different strengths of bleach, multiple degreasers and One Restore. Any suggestions? It's about a 2 hour drive from me and I may drive down and try to fix it for him if I can.
Jason,
i cant tell from the pics but it appears the streaks are at intervals that match up to standing seam roof above. If so, then it is most likely a stain from the cut edge of the panels. Most commercial standing seam is galvalume win a Kynar 500 finish paint. The cut edges will have exposed metal made up of a aluminum and zinc coated steel. The edges might be forming some oxidized streaks below. Maybe try oxiwash or some form of gutter cleaner.
Just my opinion. Hope this helps.
Please update on this if you find anything that works.
My go-to is OneRestore for things like this, so I was surprised that had not worked. Also, if the masonry is in good shape, maybe a hot water pressure washing? My first thought was also that the pattern looked very regular, like it was the result of some specific part of the structure causing the stains. I thought maybe caulk, but OneRestore should have taken care of that, although I usually use it in combination with hot water pressure wahing.
Is there any chance those bricks were made with concrete?
Maybe the slurry coat or paint has faded?
Just a wild eyed guess, remembering the first 10 minutes of AC's presentation at Rosenstein's in Carson.
If they have made slate tiles out of concrete, it's not too great a stretch to think they might do it with bricks, too.
https://www.youtube.com/watch?v=h4Bxj4m9AxE
Still learning,
vic
How did this work out?
May be moisture wiking (oxidation) from the studs if rain water runoff is getting to them.
He's still experimenting. I've been talking with him by phone to try to help. This is holding up a $20,000 check for him. I've been swamped and haven't been able to get down there. I wonder if we have any "in network" guys that could help him out?
Paul,
Your truck looks AWESOME! However..... Please remember the BB rules are that you need to have a professional head shot for your avatar. Your truck can be in your signature instead.
Thanks,
AC