First off always spray the roof with pool clorox bleach first. Let it sit for a while then pressure wash area. The water and bleach will mix together not harming any drive way. Areas where there are tarps, be careful! Don't bleach it all all because it can stain it.When you guys pressure wash a house prior to painting to kill the mildew with bleach. Do you tarp or plastic off all roofs, decks and driveways so the bleach doesn't stain it. Is there an easier way.
Thanks Dan