I did three homes today, we were expected to get rain this afternoon { still hasn't rained yet } The last one was an easy ranch. Dark clouds were over head and the breeze picked up, we set up and hit the roof in record time....the rain never came, but I was willing to risk it. I have done homes where half of it was done and the flood gates opened. We sat there for two hours, waiting for a window. When it stops you hit what you have to again and finish the job.I've also sat out in front of homes for an hour waiting for the rain to stop.You won't always have perfect weather,try to watch the forecast an schedule accordingly.

  I'm backed up on my outside painting so when I get a roof to clean I've been doing them during rain days.  I add a little extra sh.