Ever notice that ice dams don’t usually form on sheds and unoccupied houses? Interestingly, they only form when part of the roof is relatively warm, usually as a result of poor attic insulation or vents that terminate on the roof just above the snow. The main danger is that snow will melt, reach the ice dam and become blocked, where it will be forced to seep through the roof and into the house. There, it can soak and destroy insulation, rot timber, cause mold to grow and paint to peel and blister. There are a number of ways to tackle this problem, and hammering at the ice with an ice pick isn’t one of them. To find out more, check out our new article on ice dams.