gr8white
New member
... just wanted to know a ballpark figure on the amount of cleaner I'm going to need on a 2,500sqf roof, a best and worst case scenario would be great. I'm new at this so I'm gonna say 40-80 gal. Would that be a safe guess?
Roof is light grey shingle with moderate to heavy algae with lichen covering about 10%... sorry no pics. Thanks guys
Roof is light grey shingle with moderate to heavy algae with lichen covering about 10%... sorry no pics. Thanks guys