Manufacterer guidance: how to properly clean Asphalt Shingle Roofs
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February 20, 2023 at 1:57 p.m.
proclean
I own ProClean Pressure Washing in Easton / Pen Argyl Pennsylvania. I have a commercial client asking if I could provide documentation from the manufacterers regarding the proper way to clean ashpalt shingle roofs. ARMA claims bleach/sodium hypochlorite is the correct way, but do any of the manufacturers document this?
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