Saturate the shingles especially those with rust stains.
How to rust offclean roof shingles.
Spray the roof with the vinegar.
Then spray the cleaner onto the shingles photo 1.
This will help you identify the source of the rust stains usually metal nails holding the shingles in place and also remove any additional dirt and grime that makes rust removal more difficult.
Rust stains on shingles use to be very difficult to remove without damage.
Pour it into a pump sprayer strap yourself into a full body harness tie it down and climb to the roof.
Clean off your roof.
I tried clr calcium lime rust remover with a brush.
Hello i have a chimney that the cap rusted on and stained my shingles.
Treat the rust stains with vinegar.
I have ashpalt shingles light gray and the rust is noticable.
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Work your way across the roof from left to right and top to bottom.
That ll prevent the cleaner from drying out too quickly.
Tackle tough rust stains with oxalic acid.