SheFly, we have been in roof hell. We had a new roof put on 2 years ago, after severe ice dam issues/water coming in. Since we don't have an attic and no vents or soffits, it started all over. I thought DH was going to really go off the deep end when the water started leaking in the kitchen, after raking some of the spots. Finally, we called a guy who used to clean our house in Boxborough who now has a general contracting business. He is the most trustworthy person I know! He sent 5 guys over on Sunday, who got up on the roof and cleared every inch of snow, all the icicles, and the 2 decks. I was petrified watching them, running around up there, no harnesses, etc. My house is 4 stories high, with lots of roof lines.
This is what I get for buying an unusual house. We are going to have vents and soffits put in, before going to the last resort tactic of a commercial grade ice dam prevention system.