Q & A – What benefits can an insulated garage door provide? Can I insulate my existing door?
Aside from the benefit of moderating the temperature in surrounding rooms, (especially above the garage), insulation also quiets the operation sound of the door and increases durability. If you have a noninsulated steel door, there are insulation panels you can install but most models come with insulation in them. It’s usually a better investment to purchase a door with insulation than to go back and add it.