Alright guys I know one of you has solved this issue. Second time ive been asked to clean the white residue that gathers on the roof in the area where the condensation for the central AC drips onto the roof.
What is it? and What removes it? Calcium?
Dirty-Roof.com
Roof Cleaning and Power Washing Services
Slate Roof Cleaning Long Island NY
516-804-0447
Typically just a mineral deposit from the condensate. I have used F9 with success
The Roof Wizard - Non Pressure Roof & Exterior Cleaning
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Suffolk County Long Island New York
Power Washing and Roof Cleaning Long Island
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