I 've done a few jobs with some stains that looked like GM left behind after cleaning. With extra solution they never budged.
Has anybody ever come across stains that could not be removed?
If so were you able to figure out what the actual stains were? And did you figure out how to remove them?
Jason Heath said
Jan 8, 2013
I've run into that also from time to time. There are a lot of different reasons for color variations or "shading" on some asphalt shingle roofs. Got any pics of what you're talking about?
Doug Rucker said
Jan 8, 2013
Usually, if they are the stains I have experienced, one or two good hard rain falls and they come off.
Ray Burke said
Jan 8, 2013
What Doug said....
if those are stains on paint, sometimes the GM can actually eat into the pigment and leave discoloration streaks.
Peter Blau said
Jan 8, 2013
PreferredSoftWashing wrote:
I've run into that also from time to time. There are a lot of different reasons for color variations or "shading" on some asphalt shingle roofs. Got any pics of what you're talking about?
Sorry I don't. I actually had a customer tell me that she heard that cetain manufacturers shingles were suseptible to staining (which looks like GM).
Peter Blau said
Jan 8, 2013
Doug Rucker wrote:
Usually, if they are the stains I have experienced, one or two good hard rain falls and they come off.
That's must have been a relief to you. I have not been that fortunate.
AC Lockyer said
Jan 8, 2013
Peter,
Pictures would help us trouble shoot the issue.
Thanks,
AC
Matt Lancaster said
Jan 8, 2013
Take a look at the attached document it may provide some clarity. I did not take notice to what part of the country you are in so I cant promise this is cause.
Take a look at the attached document it may provide some clarity. I did not take notice to what part of the country you are in so I cant promise this is cause.
Pictures are worth a 1000 words
Thanks Matt. I saved it. Maybe I will give a copy to my customers with an explanation in the future if I come across it again.
I'm in the Pittsburgh, PA area.
Peter Blau said
Jan 8, 2013
AC Lockyer wrote:
Peter,
Pictures would help us trouble shoot the issue.
Thanks,
AC
If I come across it next time I will. Usually when I come across something like that I figured why take a picture. Doesn't make it good for a before and after.
Mark Fermoyle said
Jan 9, 2013
How old is the roof? Perhaps it is in part due to granular loss from previous "jack-legs" and/or age????
Peter Blau said
Jan 9, 2013
Let Us Spray wrote:
How old is the roof? Perhaps it is in part due to granular loss from previous "jack-legs" and/or age????
This happened on a few roofs and different ages of the roof.
I 've done a few jobs with some stains that looked like GM left behind after cleaning. With extra solution they never budged.
Has anybody ever come across stains that could not be removed?
If so were you able to figure out what the actual stains were? And did you figure out how to remove them?
if those are stains on paint, sometimes the GM can actually eat into the pigment and leave discoloration streaks.
Sorry I don't. I actually had a customer tell me that she heard that cetain manufacturers shingles were suseptible to staining (which looks like GM).
That's must have been a relief to you. I have not been that fortunate.
Pictures would help us trouble shoot the issue.
Thanks,
AC
Take a look at the attached document it may provide some clarity. I did not take notice to what part of the country you are in so I cant promise this is cause.
Pictures are worth a 1000 words
Thanks Matt. I saved it. Maybe I will give a copy to my customers with an explanation in the future if I come across it again.
I'm in the Pittsburgh, PA area.
If I come across it next time I will. Usually when I come across something like that I figured why take a picture. Doesn't make it good for a before and after.
This happened on a few roofs and different ages of the roof.
Oh well, so much for that theory.