If you’ve noticed thick icicles hanging off your gutters this winter, you’re looking at more than a nice photo opportunity. Icicles like that usually mean an ice dam has formed somewhere on the roof above them, and ice dams are one of the most common causes of hidden roof and ceiling damage we run into on service calls here in Southern Maryland. Here’s what’s actually happening up there, and how to tell whether your roof needs a closer look before the next thaw.
