Is anyone here familiar with insulation? I purchased my first home recently and have noticed several "silly" approaches that were made throughout the house. There is a basement / garage in the house and the basement half stays warm but the garage is freezing (I'm fine with that). The bad part is the living room, dining room, and kitchen are above the garage, and the rooms are INCREDIBLY cooler than the bedrooms above the basement. Probably at least 8 degree difference. Also, you can barely walk on the hardwood floors in those rooms it is so cold. I noticed the ceiling in the basement has insulation but the garage does not. Any recommendations on insulating that celing? Is that my culprit? If so, what should I buy and is it easy to do yourself?