It makes sense to insulate a garage if you are going to be heating the space. The same kinds of insulation materials can be used in the garage that is used for the rest of your home. However, there are some materials that are better than others, depending on whether or not your garage is finished. You should also consider insulating your garage door, and it has different installation requirements compared to what is needed on ceilings or walls. Fiberglass Insulation In garages, the most commonly used kind of insulation is fiberglass (it is also the most popular kind that is …