With the buildup of snow on top and hot air inside our roof, the ice at the peak of the roof melts and drips down, freezing at the colder edges of the roof, near the gutters. This results in huge blocks of ice hanging from the edge of the roof, behind which new water builds up, but is stopped from flowing straight down because of these blocks of ice damming up the liquid. Liquid that will find any opening and drip down. On the outside, this means icicles. On the inside, this means... flood. Like what I woke up to.
I ran across a really helpful website about short and long-term fixes to this problem by the University of Minnesota Extension program. If you, like me, find yourself with softly weeping walls, they have all sorts of drawings and facts about ice dams and how to prevent them - and fix them, after you got 'em.
I must say, I have learned an awful lot about things that go wrong when owning a home over the past several years. Usually through trial and error. Lots and lots of error, at least on my part, haha. But who knows? In twenty years, maybe I'll be an old pro at these things.