WHAT IS A RAIN ROOF? A rain roof is a roof built to harvest rain from. WAM Photo credit: Water Wide homesteadonomics YouTube ARIZONA WATER AWARENESS MONTH www.waterwise.arizona.edu WHAT IS A RAIN ROOF? A rain roof is a roof built to harvest rain from. WAM Photo credit: Water Wide homesteadonomics YouTube ARIZONA WATER AWARENESS MONTH www.waterwise.arizona.edu