We have removed rust from roofs but not roof soot from fire place exhaust ports. it leaves a very black stain around the pipe on the shingles and we have tried everything to remove it with no luck. there have been over 10 houses that i can think of this year with this problem. does anyone know a product that will work for this
Thanks
Michael Derose said
Sep 6, 2012
try a lite mix of sodium hydroxide. I have not tried this it is mearly a suggestion.
AC Lockyer said
Sep 6, 2012
Often times the fix will degrade the shingles. Maybe something enzyme based that will consume the grease and break it down into waste???
AC
Gregg Austensen said
Sep 6, 2012
I've heard that straight TSP will take soot off of a fireplace brick and hearth. You may want to contact a chimney sweep and see what they say.
Gregg
AC Lockyer said
Sep 6, 2012
GAustensen wrote:
I've heard that straight TSP will take soot off of a fireplace brick and hearth. You may want to contact a chimney sweep and see what they say.
Gregg
Good advice!
Mike Laskowski said
Sep 10, 2012
For the shingles I have used roof mix with double the surfactant (Green Wash of course). Apply several coats and let dwell for at least 15-20 minutes before rinsing. This has removed some soot stains completely and lightened others that were more darkly stained (repeating this process did help with the darker stains but still wasn't able to completely get rid of some).
For the brick I used a mild acid with hot water and scrubbed (alot) with a stiff bristle brush. For the mild acid I used white vinegar (I was skeptical at first but it works and I didn't have to worry about damaging the shingles with the run off). Only problem I found is that some chimney joints cant stand up to too heavy of brushing. The hotter the water.. the easier it came off.
Gregg Austensen said
Sep 16, 2012
Josh,
Came across this. I hope it helps. Let us know if you use it and how it does.
TSP Works well. One of it's main cleaning resources is for cleaning soot. I have used it for soot quite a few times and have never had a problem. TSP is made for soot. Give it a try.
We have removed rust from roofs but not roof soot from fire place exhaust ports. it leaves a very black stain around the pipe on the shingles and we have tried everything to remove it with no luck. there have been over 10 houses that i can think of this year with this problem. does anyone know a product that will work for this
Thanks
AC
I've heard that straight TSP will take soot off of a fireplace brick and hearth. You may want to contact a chimney sweep and see what they say.
Gregg
Good advice!
For the shingles I have used roof mix with double the surfactant (Green Wash of course). Apply several coats and let dwell for at least 15-20 minutes before rinsing. This has removed some soot stains completely and lightened others that were more darkly stained (repeating this process did help with the darker stains but still wasn't able to completely get rid of some).
For the brick I used a mild acid with hot water and scrubbed (alot) with a stiff bristle brush. For the mild acid I used white vinegar (I was skeptical at first but it works and I didn't have to worry about damaging the shingles with the run off). Only problem I found is that some chimney joints cant stand up to too heavy of brushing. The hotter the water.. the easier it came off.
Josh,
Came across this. I hope it helps. Let us know if you use it and how it does.
http://www.prosoco.com/Products/88818c75-3b61-4086-9cf0-5f4b547ba4b9
Gregg
TSP Works well. One of it's main cleaning resources is for cleaning soot. I have used it for soot quite a few times and have never had a problem. TSP is made for soot. Give it a try.
Brian