I have a problem that occurs each winter. I get ice on my roof. This does not appear to be damaging the roof or causing leaks. My main concern is that when a thaw occurs, the ice comes thundering down and could be very dangerous if it hit somebody. I am looking for recommendations as to how to either keep the ice from forming or keep the ice from falling.
Our roof is rather unique. We have a flat roof (gravel topped) that has has a peaked shingled roof built on top of it. There is a dormer built into the south facing side of the roof, which contains a window that provides ventilation between the two roofs.
Thanks
-di