Try as I might to combat the problem—the problem is real and serious. I'm talking ice dams.
Despite my diligence of using a snow rake to remove most of the accumulation, I am realizing that my house has a couple of strikes against it. First, it doesn't receive direct sunlight until mid morning and, with the short days, not enough to melt the ice significantly. Second, the temperatures have remained cold; below freezing at night and barely above during the day. Third, we continue to get snow. This week, we received about 5 more inches.
I was talking with my friend Nicole who suggested I use Calcium Chloride flakes, something she learned from This Old House. The procedure requires you to fill a knee-high sock with the flakes, tie the end with rope, and position it on the roof perpendicular to the ice ridge. The chemical helps to melt the snow and provide channels for the water to drain off the roof. Looks like I'll be shopping for Calcium Chloride and knee socks this week.