Winter can be especially harsh on a house's roof, and it’s almost never a good idea to simply wait for spring before addressing the issues that the presence of snow and ice on your roof can cause. Five of the main winter roof damage problems t hat homeowners should be aware of are listed below, along with some advice on how to best manage them. 1. Ice Dam Formation When warm air rises from your heated living spaces, it warms the shingles of your roof and the snow that covers it. This leads to snow melting and dripping down to the colder edges of the roof where it refreezes as ice. Once the ice grows thick enough, it backs up further snow-melt behind it, causing water to seep under the shingles, and eventually into your home through leakage points. Leaks are made the more likely when backed up water freezes and thaws, working its way into nooks and crannies and expanding them. The number one way to prevent an ice dam is by insulating and ventilating your attic, bu...