With colder weather, uninsulated or under-insulated attics can cause issues, one of which is ice damming. Ice damming can cause problems like damage to shingles, gutters and siding. It can also result in water leaking into the attic, which could soak the wood, insulation, flooring, upstairs ceiling, and even possibly valuables stored in the attic. Money spent air-sealing and properly insulating the attic can prevent all of this in addition to saving money on heating and cooling bills. It's an upgrade that pays for itself!