Winter months are a challenge for your roof and your furnace. Maintaining both can be sometimes pretty expensive. You need a furnace to keep you nice and warm. Your roof is there to keep your house nice and warm.
There are simple tests that can be done by the homeowner to determine if there is a heat loss. You can simply check the temperature in every room in your house and figure it out. If there is a heat loss in a specific section of your house it will form ice dams right above it. Sometimes when the insulation is blown into your attic proper dept may not have been met. It takes time for blown insulation to settle. Week after the insulation was blown into your attic, the dept should be checked again all around the attic and add more the low spots to have an even layer of insulation all around. Do you think your builder hired the insulation contractors to come back and make sure proper dept was applied? I really don’t think so.
Best solution for homeowner to hire a professional roofing contractor every time you buy a home to inspect your roof, your attic and all the exterior features. Most of the time paying couple of hundred dollars to a contractor is always cheaper than over working your furnace. Home inspectors a joke if you ask me when it comes to roofs. Looking at your roof across the street with a binocular is not a good sign of professionalism.