Did you know a properly ventilated attic space is key to the durability of your roof? But what is poor attic ventilation exactly? How does it directly lead to other problems that can leave your home damaged? One you may have seen are ice dams, those buildups of ice on your rooftop. See a demonstration of how the ice dam occurs from the freezing, thawing, and refreezing cycle. This builds ice under the shingles and pushes them apart, leaving space for water. A properly ventilated attic keeps uniformly cold in the winter and inhibits the thaw refreeze cycle that causes ice dams. The solution, as explained, lies in maintaining a consistent attic temperature for your climate.