The Roof Cleaning Institute Of America Training & Certification Forum
"Find A Certified Roof Cleaner Directory"

Don't we all, lol.

If you clean concrete and what to get it done in a timely manner, hot water and a good surface cleaner helps, speed wise for sure. We price concrete at .15-20 a sq, and with dwell, gutter, and reclaiming time, a few hundred more sometimes makes for a better roof clean day. We did free walkway today while wrapping up a roof, took me 15 minutes.