Around here many people don't have gutters because of ice dams and heavy winter conditions. The ice just rips them off. What i'm thinking is to attach the eavestrough with short loop of bungee cord, use an eye-let screw through the facia and attach a piece of bungee every 2 feet to the trough hangers. The gutter hangers attach in the middle but i think it needs to just be tied to the edge? Or will it come apart that way? This way if the would just hang down if the ice gets too much. But maybe the hangers will come off? The other idea would be removable clip on eaves, not sure how that would work?